Object image displaying system

• US 9,544,548 B2
• Filed: 06/08/2009
• Issued: 01/10/2017
• Est. Priority Date: 06/06/2008
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Morisaki, Mitsunori
• Primary Examiner(s): BIAGINI, CHRISTOPHER D
• Application Number:
  US12/480,484
• Publication Number:
  US 20090303329A1
• Time in Patent Office: 2,773 Days
• Field of Search: 348/159
• US Class Current: 1/1
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

An object image displaying system according to an exemplary aspect of the invention includes: a plurality of cameras which image a plurality of imaging areas respectively to create image data representing the image areas; and a server which is connected to the plural cameras, wherein the server includes: an identifying unit which identifies a position at which an object exists as a identified position; a selecting unit which selects selected image data which corresponds to the identified position out of the image data created by the plural cameras; and a display control unit which controls a display unit to display the selected image data.

Claims

1. An object image displaying system, comprising:

a plurality of cameras which image a plurality of imaging areas respectively and create image data representing said image areas;

a server which is connected to said plural cameras, wherein said server includes a memory that stores policy information of a person as an object; and

a positioning system including a position measuring terminal which is installed for said person and a plurality of position measuring devices,

wherein said server is configured to;

identify a position at which the person exists as an identified position;

select selected image data which corresponds to said identified position out of said image data created by said plurality of cameras, wherein the selected image data is selected out of the image data created by a camera identified as permitted by the policy information of the person; and

control a display unit to display said selected image data as a presence of the person, and

wherein in case that a plurality of persons have said position measuring terminals respectively and a group of persons out of said plural persons exist at said identified position, said server selects permitted cameras which whole of said group of persons permit in advance out of said plural cameras.

2. The object image displaying system according to claim 1,

wherein said plural position measuring devices can communicate with said position measuring terminal when said position measuring terminal exists in a plurality of position measuring areas respectively, and

wherein said server identifies a position of a specific position measuring device as said identified position on the basis of communication between said position measuring terminal and said specific position measuring device when said position measuring terminal exists in a specific position measuring area out of said plural position measuring areas.

3. The object image displaying system according to claim 2,

wherein each of said plural position measuring devices sends a unique ID,

wherein said position measuring terminal receives a unique ID which is sent from said specific position measuring device out of said plural position measuring devices through said communication when said position measuring terminal exists in said specific position measuring area,

wherein said server, which is connected to said position measuring terminal via a network, further includes a position identifying database which stores said unique ID sent from each of a plurality of position measuring devices and a plurality of position measuring device position information which represent positions of said plural position measuring devices respectively, and

wherein said server identifies a position of said position measuring terminal as position of said specific position measuring device that corresponds to said unique ID received by said position measuring terminal out of positions of said plural position measuring devices with reference to said position identifying database as said identified position.

4. The object imaging displaying system according to claim 2,

wherein said plural position measuring devices are installed at positions corresponding to a plurality of positions at which said plural cameras are installed respectively,

wherein said plural position measuring areas correspond to said plural imaging areas respectively, and

wherein said server selects a camera that corresponds to said identified position as a selected camera, and selects said image data that is created by said selected camera as said selected image data.

5. The object image displaying system according to claim 4, wherein said server selects a camera that is the nearest to said identified position out of said plural cameras as said selected camera.

6. The object image displaying system according to claim 4, wherein in case that there are a plurality of said identified positions and said selected image data corresponding to said plural identified positions are created simultaneously, said server controls said display unit to display at least one or all of said selected image data.

7. The object image displaying system according to claim 2,

wherein said plural position measuring devices are installed at positions separating from a plurality of positions at which said plural of cameras are installed,

wherein said plural position measuring areas are smaller than said plural imaging areas respectively, and

wherein said server selects a camera that corresponds to said identified position out of a plurality of cameras as a selected camera and selects said image data that is created by said selected camera as said selected image data.

8. The object image displaying system according to claim 2,

wherein said plural position measuring devices are installed at positions corresponding to a plurality of positions at which said plural cameras are installed respectively,

wherein said plural position measuring areas correspond to said plural imaging areas respectively, and

wherein said server selects a camera that is the nearest to said identified position out of said plural cameras as said selected camera.

9. The object image displaying system according to claim 2, wherein

a first position measuring device out of said plural position measuring devices is installed at a position corresponding to a position at which a first camera out of said plural cameras is installed,

a second position measuring device out of said plural position measuring devices is installed at a position separating from a plurality of positions at which said plural cameras are installed,

a second camera out of said plural cameras is installed at a position separating from positions of said plural position measuring devices,

a first position measuring area in which said first position measuring device can communicate out of said plural position measuring areas corresponds to an imaging area that said first camera can image out of said plural imaging areas,

wherein an imaging area which said first camera can image and said plural position measuring areas are smaller than an imaging area which said second camera can image,

wherein an imaging area which said second camera can image overlaps with an imaging area which said first camera can image,

wherein said server selects a camera which is the nearest to said identified position out of said plural cameras as said selected camera and selects said image data which is created by said selected camera as said selected image data, and

wherein in case that said first camera is the nearest to said identified position, said first camera is selected as said selected camera, and in case that said second camera is the nearest to said identified position, said second camera is selected as said selected camera.

10. The object image displaying system according to claim 9,

wherein said server selects cameras which correspond to said identified position out of said plural cameras as a group of candidate cameras,

wherein in case that said first camera is included in said group of candidate cameras and said second camera is not included in said group of candidate cameras, said selecting unit server selects said first camera out of said group of candidate cameras as said selected camera,

wherein in case that said second camera is included in said group of candidate cameras and said first camera is not included in said group of candidate camera, said server selects said second camera out of said group of candidate cameras as said selected camera, and

wherein in case that both said first camera and said second camera are included in said group of candidate camera, said server selects said first camera out of said group of candidate cameras as said selected camera.

11. The object image displaying system according to claim 9,

wherein said person has said position measuring terminal, and

wherein said server selects a group of permitted cameras which said person permits in advance out of said plural cameras and selects a camera which is the nearest to said identified position out of said group of permitted cameras as said selected camera.

12. The object image displaying system according to claim 9,

wherein said person has said position measuring terminal,

wherein each of said plural cameras includes a group of permitted cameras to each of which one priority level out of first priority level to last priority level is assigned respectively,

wherein one priority level out of first priority level to last priority level is assigned to said person, and

wherein said server selects cameras which are nearest to said identified position out of said plural cameras as said group of permitted cameras and selects a camera which corresponds to said priority level of said person out of said group of permitted cameras as said selected camera.

13. The object image displaying system according to claim 2,

wherein said plural position measuring devices are installed at positions separating from a plurality of positions at which said plural cameras are installed respectively,

wherein said plural position measuring areas are larger than said plural imaging areas respectively,

wherein said server selects cameras which correspond to said identified position out of said plural cameras as said selected camera and selects said image data which are created by said plural selected cameras as said selected image data respectively, and

wherein said server controls said display unit to display at least one or all of said selected image data.

14. The object image displaying system according to claim 13, wherein WLAN (Wireless Local Area Network) is applied to said communication.

15. The object image displaying system according to claim 2,

wherein said plural position measuring devices are installed at positions separating from a plurality of positions at which said plural cameras are installed respectively,

wherein said plural position measuring areas are larger than said plural imaging areas respectively,

wherein in case that a first position measuring device out of said plural position measuring devices is installed at a position separating from positions at which a first camera and a second camera out of said plural cameras are installed, an imaging area which said first camera can image out of said plural imaging area is smaller than an imaging area which said second camera can image,

wherein an imaging area which said second camera can image overlaps with an imaging area which said first camera can image,

wherein said server selects cameras which have the largest imaging area and correspond to said identified position out of said plural cameras as a selected camera, and selects said image data which are created by a plurality of said selected cameras as said selected image data respectively, and

wherein said server controls said display unit to display at least one or all of said selected images data corresponding to said identified position.

16. The object image displaying system according to claim 1,

wherein said plural cameras are installed at a plurality of positions respectively, wherein in case that a specific camera out of said plural cameras images said person, said server identifies a position at which said specific camera is installed as said identified position, and

wherein said server selects said image data which is created by said specific camera as said selected image data.

17. The object image displaying system according to claim 16,

wherein said server further includes a face image database which stores a face image data representing a face image of said person, and

wherein said server carries out a face recognizing process in which said server judges whether said face image is included in an image which is represented by said image data created by said plural cameras with reference to said face image database and identifies a camera which creates said image data including said face image out of said image data created by said plural cameras as said specific camera.

18. The object image displaying system according to claim 17,

wherein said face image data which said face image database stores represents a feature point of said person as said face image,

wherein in said face recognizing process, said server extracts a feature point from an image which said image data created by said plural cameras represents and judges whether said feature point is identical to a feature point stored in said face image database, and

wherein a camera which creates said image data including said feature point identical to a feature point of said person out of said plural cameras is identified as said specific cameras.

19. The object image displaying system according to claim 17,

wherein a group of cameras out of said plural cameras and a wide area camera are installed separately each other,

wherein imaging areas which said group of cameras can image out of said plural imaging areas are smaller than an imaging area which said wide area camera can image,

wherein an imaging area which said wide area camera can image overlaps with imaging areas which said group of cameras can image,

wherein in case that cameras which create said image data including said face image are said wide area camera and one camera out of said group of cameras, and a first camera and a second camera out of said group of cameras as said one camera create said image data including said face image sequentially in this order, said server identifies firstly said first camera as said specific camera and next, identifies said second camera as said specific camera, and

wherein said image data which are created by said first camera and said second camera are displayed in sequence as said selected image data by said display unit.

20. The object image displaying system according to claim 19,

wherein said server carries out said face recognizing process for said image data created by said wide area camera,

wherein in case that in said face recognizing process, said face image is included in an image which said image data created by said wide area camera represents, said server identifies said identified position, based on a position at which said wide area camera is installed, and a position, at which said face image is included, in an image presented by the image data created by said wide area camera, and

wherein said server identifies said one camera out of said group of cameras which correspond to said identified position as said specific camera.

21. The object image displaying system according to claim 16,

wherein a group of cameras out of said plural cameras and a wide area camera are installed separately each other,

wherein imaging areas which said group of cameras can image out of said plural imaging areas, are smaller than an imaging area which said wide area camera can image,

wherein an imaging area which said wide area camera can image overlaps with imaging areas which said group of cameras can image,

wherein in case that cameras which create said image data representing an image of said person out of said image data created by said plural cameras are said wide area camera, and a first and a second cameras out of said group of cameras, and said first camera and said second camera create said image data representing an image of said person sequentially in this order, said server identifies firstly said first camera to be said specific camera as one camera out of said group of cameras and next, identifies said second camera to be said specific camera, and

wherein said image data created by said first camera and said second camera are displayed sequentially by said display unit as said selected image data.

22. The object image displaying system according to claim 21,

wherein said server calculates a subtraction between brightness of said image data created by each of said plural cameras and brightness of background image data of an image which includes no person in each of said plural imaging areas and compares said subtraction value with a threshold value, and

wherein in case that said wide area camera and said one camera out of said group of cameras have said subtraction value not less than said threshold value, said server identifies a position at which said one camera is installed as said identified position and identifies said one camera which corresponds to said identified position as said specific camera.

23. The object image displaying system according to claim 21,

wherein said server calculates a subtraction between brightness of said image data created by said wide area camera and brightness of background image data of an image which includes no person in an imaging area corresponding to said wide area camera out of a plurality of imaging areas and compares a subtraction value with a threshold value,

wherein in case that said subtraction value is not less than said threshold value, said server identifies said identified position, based on a position at which said wide area camera is installed,

and a position whose subtraction value is not less than said threshold value in an image corresponding to said image data created by said wide area camera, and

wherein said server identifies said one camera out of said group of cameras which correspond to said identified position as said specific camera.

24. A computer system, comprising:

a memory that stores policy information of a person as an object; and

a controller configured to;

acquire image data created on the basis of photographing data corresponding to images of a plurality of imaging area;

identify a position of the person as an identified position;

select selected image data which corresponds to said identified position out of said image data created by said plurality of cameras, wherein the selected image data is selected out of the image data created by a camera identified as permitted by the policy information of the person; and

control a display unit to display said selected image data as a presence of the person and wherein in case that a plurality of persons have position measuring terminals respectively and a group of persons out of said plural persons exist at said identified position, said controller selects permitted cameras which whole of said group of persons permit in advance out of said plural cameras.

25. A method for displaying an object image, comprising the steps of:

receiving policy information of a person as an object in a memory;

identifying a position of the person as an identified position;

selecting selected image data corresponding to said identified position out of image data created by a plurality of cameras, wherein the selected image data is selected out of the image data created by a camera identified as permitted by the policy information of the person;

displaying said selected image data on a display unit as a presence of the person; and

wherein in case that a plurality of persons have position measuring terminals respectively and a group of persons out of said plural persons exist at said identified position, selecting permitted cameras which whole of said group of persons permit in advance out of said plural cameras.

26. The method for displaying the object image according to claim 25, wherein when a position measuring terminal which said person has exists in a specific position measuring area out of said plural position measuring areas, a position of a specific position measuring device which corresponds to said identified position measuring area out of said plural position measuring devices is identified as said identified position on the basis of communication between said position measuring terminal and said specific position measuring device, in said identifying said identified position.

27. The method for displaying the object image according to claim 26,

wherein each of said plural position measuring devices sends a unique ID,

wherein said position measuring terminal receives a unique ID which is sent from said specific position measuring device out of said plural position measuring devices through said communication when said position measuring terminal exists in said specific position measuring area, and

wherein a position of said position measuring terminal as position of said specific position measuring device which corresponds to said unique ID received by said position measuring terminal out of positions of said plural position measuring devices is identified as said identified position with reference to a position identifying database which stores said unique IDs sent from a plurality of position measuring devices, and a plurality of position measuring device position information representing positions of said plural position measuring devices respectively, in said identifying said identified position.

28. The method for displaying the object image according to claim 26,

wherein said plural position measuring devices are installed at positions corresponding to a plurality of positions at which said plural cameras are installed respectively,

wherein said plural position measuring areas correspond to said plural imaging areas respectively, and

wherein a camera corresponding to said identified position is selected out of said plural cameras as a selected camera, and said image data which is created by said selected camera is selected as said selected image data, in said selecting said selected image data corresponding to said identified position.

29. The method for displaying the object image according to claim 28, wherein a camera which is the nearest to said identified position is selected out of said plural cameras as said selected camera, in said selecting said selected images data corresponding to said identified position.

30. The method for displaying the object image according to claim 28,

wherein said plural position measuring devices are installed at positions corresponding to a plurality of positions at which said plurality of cameras are installed respectively,

wherein said plurality of position measuring areas correspond to said plural imaging areas respectively, and

wherein a camera which is the nearest to said identified position is selected out of said plural cameras as a selected camera, in said selecting said selected image data corresponding to said identified position.

31. The method for displaying the object image according to claim 28, wherein in case that a plurality of persons exist and said selected image data corresponding to said plural persons are created simultaneously, at least one or all of said selected image data is displayed by said display unit, in said displaying said selected image data on a display unit.

32. The method for displaying the object image according to claim 26,

wherein said plural position measuring devices are installed at positions separating from a plurality of positions at which said plural cameras are installed,

wherein said plural position measuring areas are smaller than said plural imaging areas respectively, and wherein

a camera corresponding to said identified position is selected out of said plural cameras as a selected camera, and said image data which is created by said selected camera is selected as said selected image data, in said selecting said selected image data corresponding to said identified position.

33. The method for displaying the object image according to claim 26,

wherein a first position measuring device out of said plural position measuring devices is installed at a position corresponding to a position at which a first camera out of said plural cameras is installed,

wherein a second position measuring device out of said plural position measuring devices is installed at a position separating from a plurality of positions at which said plural cameras are installed,

wherein a second camera out of said plural cameras is installed at a position separating from positions of said plural position measuring devices,

wherein a first position measuring area in which said first position measuring device can communicate, out of said plural position measuring areas, corresponds to an imaging area which said first camera can image out of said plural imaging areas,

wherein an imaging area which said first camera can image, and said plural position measuring areas are smaller than an imaging area which said second camera can image,

wherein an imaging area which said second camera can image overlaps with an imaging area which said first camera can image,

wherein a camera which is the nearest to said identified position is selected out of said plural cameras as said selected camera, and said image data which is created by said selected camera is selected as said selected image data, in said selecting said selected image data corresponding to said identified position, and

wherein in case that said first camera is the nearest to said identified position, said first camera is selected as said selected camera, and in case that said second camera is the nearest to said identified position, said second camera is selected as said selected camera, in said selecting said selected image data corresponding to said identified position.

34. The method for displaying the object image according to claim 33,

wherein cameras which correspond to said identified position are selected out of said plural cameras as a group of candidate cameras, in said selecting said selected images data corresponding to said identified position, and

wherein in case that said first camera is included in said group of candidate cameras and said second camera is not included in said group of candidate cameras, said first camera is selected out of said group of candidate cameras as said selected camera, and in case that said second camera is included in said group of candidate cameras and said first camera is not included in said group of candidate cameras, said second camera is selected out of said group of candidate cameras as said selected camera, and in case that both said first camera and said second camera are included in said group of candidate cameras, said first camera is selected out of said group of candidate cameras as said selected camera, in said selecting said selected images data corresponding to said identified position.

35. The method for displaying the object image according to claim 33,

wherein said person who is near said position measuring terminal, and

wherein a group of permitted cameras which said person permits in advance is selected out of said plural cameras, and a camera which is the nearest to said identified position is selected out of said group of permitted cameras as said selected camera, in said selecting said selected image data corresponding to said identified position.

36. The method for displaying the object image according to claim 33,

wherein said person has said position measuring terminal,

wherein each of said plural cameras includes a group of permitted cameras to each of which one priority level out of first priority level to last priority level is assigned,

wherein one priority level out of first priority level to last priority level is assigned to said person, and

wherein cameras which are nearest to said identified position are selected out of said plural cameras as said group of permitted cameras, and a camera which corresponds to said priority level of said person is selected out of said group of permitted cameras as said selected camera, in said selecting said selected image data corresponding to said identified position.

37. The method for displaying the object image according to claim 26,

wherein said plural position measuring devices are installed at positions separating from a plurality of positions at which said plural cameras are installed respectively,

wherein said plural position measuring areas are larger than said plural imaging areas respectively,

wherein cameras which correspond to said identified position are selected out of said plural cameras as said selected camera, and said image data which are created by said plural selected cameras are selected as said selected image data respectively, in said selecting said selected image data corresponding to said identified position, and

wherein at least one or all of said selected image data is displayed by said display unit, in said displaying said selected image data on a display unit.

38. The method for displaying the object image according to claim 37, wherein WLAN (Wireless Local Area Network) is applied to said communication.

39. The method for displaying the object image according to claim 26,

wherein said plural position measuring devices are installed at positions separating from a plurality of positions at which said plural cameras are installed respectively,

wherein said plural position measuring areas are larger than said plural imaging areas respectively,

wherein in case that a first position measuring device out of said plural position measuring devices is installed at a position separating from positions at which a first camera and a second camera out of said plural cameras are installed, an imaging area which said first camera can image out of said plural imaging area, is smaller than an imaging area which said second camera can image,

wherein an imaging area which said second camera can image overlaps with an imaging area which said first camera can image,

wherein cameras which have the largest imaging area and correspond to said identified position are selected out of said plural cameras as a selected camera, and said image data which are created by a plurality of said selected cameras are selected as said selected image data respectively, in said selecting said selected image data corresponding to said identified position, and

wherein at least one or all of said selected image data is displayed by said display unit, in said displaying said selected image data on a display unit.

40. The method for displaying the object image according to claim 25,

wherein said plural cameras are installed at a plurality of positions respectively,

wherein in case that a specific camera out of said plural cameras images said person, a position at which said specific camera is installed is identified as said identified position, in said identifying said identified position, and

wherein said image data which is created by said specific camera is selected as said selected image data, in said selecting said selected image data corresponding to said identified position.

41. The method for displaying the object image according to claim 40,

wherein a face recognizing process in which it is judged whether a face image is included in images represented by said image data which are created by said plural cameras is carried out with reference to a face image database which stores a face image data representing said face image of said person, and a camera which creates said image data including said face image out of said image data created by said plural cameras is identified as said specific camera, in said identifying said identified position.

42. The method for displaying the object image according to claim 41,

wherein said face image data which said face image database stores represents a feature point of said person as said face image,

wherein a feature point is extracted from images which said image data created by said plural cameras represent, and it is judged whether said feature point is identical to a feature point stored in said face image database, in said face recognizing process of said identifying said identified position, and

wherein a camera which creates said image data including said feature point identical to a feature point of said person is identified out of said plural cameras as said specific camera, in said identifying said identified position.

43. The method for displaying the object image according to claim 41,

wherein a group of cameras out of said plural cameras and a wide area camera are installed separately each other,

wherein imaging areas which said group of cameras can image out of said plural imaging areas, are smaller than an imaging area which said wide area camera can image,

wherein an imaging area which said wide area camera can image overlaps with imaging areas which said group of cameras can image,

wherein in case that cameras which create said image data including said face image are said wide area camera and one camera out of said group of cameras, and a first camera and a second camera out of said group of cameras as said one camera create said image data including said face image sequentially in this order, firstly said first camera is identified as said specific camera and next, said second camera is identified as said specific camera, in said identifying said identified position, and

wherein said image data which are created by said first camera and said second camera are displayed in sequence as said selected image data by said display unit.

44. The method for displaying the object image according to claim 43,

wherein in said identifying said identified position, said face recognizing process for said image data created by said wide area camera, is carried out, and in case that in said face recognizing process, said face image is included in an image which said image data created by said wide area camera represents, said identified position is identified, based on a position at which said wide area camera is installed, and a position at which said face image is included in an image represented by the image data created by said wide area camera, and

wherein said one camera out of said group of cameras corresponding to said identified position is identified as said specific camera, in said identifying said identified position.

45. The method for displaying the object image according to claim 40,

wherein a group of cameras out of said plural cameras and a wide area camera are installed separately each other,

wherein imaging areas which said group of cameras can image out of said plural imaging areas, are smaller than an imaging area which said wide area camera can image,

wherein an imaging area which said wide area camera can image overlaps with imaging areas which said group of cameras can image,

wherein in case that cameras which creates said image data representing an image of said person out of said image data created by said plural cameras are said wide area camera, and a first and a second cameras out of said group of cameras, and moreover, said first camera and said second camera create said image data which represents an image of said person sequentially in this order, firstly said first camera out of said group of cameras is identified to be said specific camera as one camera out of said group of cameras and next, said second camera is identified to be said specific camera, in said identifying said identified position, and

wherein said image data created by said first camera and said second camera is displayed sequentially by said display unit as said selected image data.

46. The method for displaying the object image according to claim 45, wherein in said identifying said identified position, a subtraction between brightness of said image data created by each of said plural cameras and brightness of background image data of an image which includes no person in each of said plural imaging areas is calculated and said subtraction value is compared with a threshold value, and in case that said wide area camera and said one camera out of said group of cameras have said subtraction value not less than said threshold value, a position, at which said one camera is installed is identified as said identified position and said one camera which corresponds to said identified position is identified as said specific camera.

47. The method for displaying the object image according to claim 45,

wherein in said identifying said identified position, a subtraction between brightness of said image data created by said wide area camera and brightness of background image data of an image which includes no person in an imaging area corresponding to said wide area camera out of a plurality of imaging areas is calculated and subtraction value is compared with a threshold value, and in case that said subtraction value is not less than said threshold value, said identified position is identified, based on a position at which said wide area camera is installed, and a position, whose said subtraction value is not less than said threshold value, in an image represented by said image data created by said wide area camera, and

wherein said one camera out of said group of cameras which correspond to said identified position is identified as said specific camera.

48. A non-transitory computer readable medium having executable instructions operable to cause an apparatus to:

receive policy information of a person as an object in a memory;

identify a position of the person as an identified position;

select selected image data corresponding to said identified position out of image data created by a plurality of cameras, wherein the selected image data is selected out of the image data created by a camera identified as permitted by the policy information of the person;

display said selected image data on a display unit as a presence of the person; and

wherein in case that a plurality of persons have position measuring terminals respectively and a group of persons out of said plural persons exist at said identified position, select permitted cameras which whole of said group of persons permit in advance out of said plural cameras.

49. A computer system, comprising:

a memory that stores policy information of a person as an object; and

a controller that is configured to

acquire image data corresponding to images of a plurality of imaging areas,

identify a position of the person as an identified position,

select selected image data corresponding to said identified position out of said acquired image data, wherein the selected image data is selected out of the image data created by a camera identified as permitted by the policy information of the person, and

wherein in case that a plurality of persons have position measuring terminals respectively and a group of persons out of said plural persons exist at said identified position, select permitted cameras which whole of said group of persons permit in advance out of said plural cameras.

50. The computer system according to claim 49, wherein the controller controls a display to display said selected image data at the image quality.

51. The computer system according to claim 49, wherein the security policy information is user-determined.

52. The computer system according to claim 51, wherein the security policy information corresponds to a priority level.

53. A non-transitory computer readable medium having executable instructions operable to cause an apparatus to:

acquire image data corresponding to images of a plurality of imaging areas;

identify a position of a person as an identified position;

select selected image data corresponding to said identified position out of said acquired image data, wherein the selected image data is selected out of the image data created by a camera identified as permitted by the policy information of the person; and

wherein in case that a plurality of persons have position measuring terminals respectively and a group of persons out of said plural persons exist at said identified position, select permitted cameras which whole of said group of persons permit in advance out of said plural cameras.

54. The non-transitory computer readable medium according to claim 53, wherein the executable instructions are operable to further cause the apparatus to control a display to display said selected image data at the image quality.

55. The non-transitory computer readable medium according to claim 53, wherein the security policy information is user-determined.

56. The non-transitory computer readable medium according to claim 55, wherein the security policy information corresponds to a priority level.