APPARATUS FOR PLAYING BACK RECORDED VIDEO IMAGES RELATED TO EVENT,AND METHOD THEREOF

• US 20100271478A1
• Filed: 04/20/2010
• Published: 10/28/2010
• Est. Priority Date: 04/23/2009
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Oya, Takashi
• Granted Patent: US 9,420,239 B2
• Time in Patent Office: Days
• US Class Current: 348/143
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G11B 27/10 Indexing; Addressing; Timing or synchronising; Measuring tape travel
• CPC Class Codes: H04N 21/2743 Video hosting of uploaded data from client
• CPC Class Codes: H04N 21/2747 Remote storage of video programs received via the downstream path, e.g. from the server
• CPC Class Codes: H04N 21/4223 Cameras H04N23/00 takes precedence
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/91 Television signal processing therefor
• CPC Class Codes: H04N 7/185 from a mobile camera, e.g. for remote control

Abstract

An apparatus includes a recording unit configured to record a video image, a generation unit configured to generate, when a first type of event in which a state of an object changes is detected from the video image, an index associating the first type and a second type of event related to the first type in the video image, and a playback unit configured to play back, when the first type is specified, a video image concerning the second type corresponding to the specified first type based on the index.

Claims

1. An apparatus comprising:

a recording unit configured to record a video image;

a generation unit configured to generate, when a first type of event in which a state of an object changes is detected from the video image, an index associating the first type and a second type of event related to the first type in the video image; and

a playback unit configured to play back, when the first type in the video image is specified, a video image concerning the second type corresponding to the specified first type based on the index.

2. The apparatus according to claim 1, wherein, when the first type is detected, the generation unit is configured to generate an index including time concerning the first type and time concerning the second type related to the first type.

3. The apparatus according to claim 1, wherein the generation unit is configured to detect desertion or taking away of an object as the first type and to generate an index associating the desertion or taking away of the object and an entry or exit of a person who has carried out the desertion or taking away as the second type related to the first type.

4. The apparatus according to claim 1, further comprising:

a display unit configured to display a time line on which symbols indicating the first type are arranged along a time axis; and

a specifying unit configured to specify an event of the first type by selecting the symbol from the time line.

5. The apparatus according to claim 4, wherein the display unit is configured to display the video image concerning the event detected from the video image in a window together with the time line.

6. The apparatus according to claim 5, wherein the display unit is configured to associate and display the video image concerning the event detected from the video image and the symbol on the time line representing the event.

7. A method comprising:

recording a video image;

generating, when a first type of event in which a state of an object changes is detected from the video image, an index associating the first type and a second type of event related to the first type in the video image; and

playing back, when the first type of event in the video image is specified, the video image concerning the second type corresponding to the specified first type based on the index.

8. The method according to claim 7, further comprising:

when the first type is detected, generating an index including time concerning the first type and time concerning the second type related to the first type.

9. The method according to claim 7, further comprising:

detecting desertion or taking away of an object as the first type; and

generating an index associating the desertion or taking away of the object and an entry or exit of a person who has carried out the desertion or taking away as the second type related to the first type.

10. The method according to claim 7, further comprising:

displaying a time line on which symbols indicating the first type are arranged along a time axis; and

specifying an event of the first type by selecting the symbol from the time line.

11. The method according to claim 10, further comprising displaying the video image concerning the event detected from the video image in a window together with the time line.

12. The apparatus according to claim 11, further comprising associating and displaying the video image concerning the event detected from the video image and the symbol on the time line representing the event.

13. A computer-readable storage medium storing a program for causing a computer to execute the video playback method according to claim 7.

14. The computer-readable storage medium according to claim 13, further comprising:

when the first type is detected, generating an index including time concerning the first type and time concerning the second type related to the first type.

15. The computer-readable storage medium according to claim 14, further comprising:

detecting desertion or taking away of an object as the first type; and

generating an index associating the desertion or taking away of the object and an entry or exit of a person who has carried out the desertion or taking away as the second type related to the first type.

16. The computer-readable storage medium according to claim 14, further comprising:

displaying a time line on which symbols indicating the first type are arranged along a time axis; and

specifying an event of the first type by selecting the symbol from the time line.

17. The computer-readable storage medium according to claim 16, further comprising displaying the video image concerning the event detected from the video image in a window together with the time line.

18. The computer-readable storage medium according to claim 17, further comprising associating and displaying the video image concerning the event detected from the video image and the symbol on the time line representing the event.