VIEW ENVIRONMENT CONTROL SYSTEM

• US 20090123086A1
• Filed: 07/31/2006
• Published: 05/14/2009
• Est. Priority Date: 10/31/2005
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yoshii, Takashi, Yoshida, Yasuhiro, Iwanami, Takuya
• Application Number:
  US12/091,661
• Publication Number:
  US 20090123086A1
• Time in Patent Office: Days
• US Class Current: 382/274
• CPC Class Codes: H04N 21/4131 home appliance, e.g. lighting, air conditioning system, metering devices home automation data switching networks exchanging configuration information on appliance services H04L12/2807
• CPC Class Codes: H04N 21/42202 environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
• 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 5/147 Scene change detection
• CPC Class Codes: H04N 5/58 in dependence upon ambient light
• CPC Class Codes: H04N 9/73 Colour balance circuits, e.g. white balance circuits or colour temperature control camera processing pipelines for colour balance H04N23/88
• CPC Class Codes: H05B 47/125 by using cameras
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

It is possible to control ambient illumination so as to be appropriate for an atmosphere of a scene to be imaged and shot setting intended by a video producer. A view environment control device includes a scene section detection processing unit (22) for a video to be displayed on a video display device (1) and a shot (atmosphere) estimation unit (23) of the video scene. The scene section detection processing unit (22) detects a video scene section and the shot (atmosphere) estimation unit (23) estimates the shot setting (atmosphere) by the illumination state of the shot where video is imaged and generates illumination control data appropriate for the scene, which is stored in (31). An illumination switching control unit (41) controls the illumination light of an illumination device (5) according to the illumination control data read from (31), thereby controlling the illumination appropriate for the video displayed on the video display device (1).

Claims

1. A view environment controlling apparatus controlling illumination light of a lighting device in accordance with a feature quantity of video data to be displayed, wherein

the illumination light of the lighting device is retained substantially constant in the same scene of the video data.

2. The view environment controlling apparatus as defined in claim 1, comprising:

a scene section detecting means that detects a section of a scene making up the video data;

a video feature quantity detecting means that detects a video feature quantity of each scene detected by the scene section detecting means; and

a lighting switch controlling means that switches and controls the illumination light of the lighting device for each scene based on the detection result of the video feature quantity detecting means.

3. The view environment controlling apparatus as defined in claim 2, comprising:

a scene lighting data storage means that stores the detection result detected by the video feature quantity detecting means for each scene and time codes of scene start point and scene end point of each scene detected by the scene section detecting means as scene lighting data; and

a video data storage means that stores the video data along with time code,

wherein the lighting switch controlling means switches and controls the illumination light of the lighting device for each scene based on the scene lighting data read from the scene lighting data storage means and the time codes read from the video data storage means.

4. The view environment controlling apparatus as defined in claim 2, comprising

a video data accumulating means that accumulates video data of a predetermined number of frames after the scene start point of each scene detected by the scene section detecting means,

wherein the video feature quantity detecting means uses the video data accumulated on the video data accumulating means to detect a video feature quantity of a scene started from the scene start point.

5. The view environment controlling apparatus as defined in claim 4, comprising

a video data delaying means that outputs the video data to be displayed with a delay of a predetermined time.

6. A view environment control system comprising the view environment controlling apparatus as defined in any one of claims 1 to 5 and a lighting device having view environment illumination light controlled by the view environment controlling apparatus.

7. A view environment controlling method of controlling illumination light of a lighting device in accordance with a feature quantity of video data to be displayed,

wherein the illumination light of the lighting device is retained substantially constant in the same scene of the video data.

8. The view environment controlling method as defined in claim 7, comprising:

a scene section detecting step of detecting a section of a scene making up the video data;

a video feature quantity detecting step of detecting a video feature quantity of each scene detected at the scene section detecting step; and

a lighting switch determining step of switching and controlling the illumination light of the lighting device for each scene based on the detection result of the video feature quantity detecting step.

9. The view environment controlling method as defined in claim 8,

wherein the scene section detecting step includes the steps of:

detecting a scene start point for every frame of video data;

recording the time code of the scene start point when the scene start point is detected;

detecting a scene end point for every frame subsequent to the scene start point after the scene start point is detected; and

recording the time code of the scene end point when the scene detection point is detected, and

wherein the video feature quantity detecting step includes the steps of;

reproducing video data of a scene section corresponding to the time codes of the recorded scene start point and scene end point; and

detecting the video feature quantity of the scene with the use of the reproduced video data.

10. The view environment controlling method as defined in claim 8, wherein the scene section detecting step includes the step of detecting a scene start point from video data,

wherein the method further comprises the step of acquiring video data of a predetermined number of frames subsequent to the scene start point when the scene start point is detected, and

wherein at the video feature quantity detecting step, the acquired video data of the predetermined number of frames are used to detect the video feature quantity of the scene started from the scene start point.

11. The view environment controlling method as defined in claim 8, wherein the scene section detecting step includes the step of detecting a scene start point from video data, and

the step of detecting a scene end point from the video data,

wherein the method further comprises the step of acquiring video data of a predetermined number of frames subsequent to the scene start point when the scene start point is detected, and

the step of detecting a scene start point form the video data again if the scene end point is detected before acquiring the video data of a predetermined number of frames subsequent to the scene start point, and

wherein at the video feature quantity detecting step, the video feature quantity of the scene started from the scene start point is detected using the acquired video data of the predetermined number of frames.

12. The view environment controlling method as defined in claim 10 or 11, wherein the video data to be displayed are output with a delay of a predetermined time.

13. A data transmitting apparatus transmitting video data made up of one or more scenes, wherein

scene delimitation position information indicating delimitation position of each scene of the video data is transmitted in addition to the video data.

14. The data transmitting apparatus as defined in claim 13, wherein the scene delimitation position information is added per frame of the video data.

15. A data transmitting apparatus transmitting scene delimitation position information indicating delimitation position of each scene making up video data in response to a request from the outside, wherein

the scene delimitation position information represents start frame of each scene making up the video data.

16. The data transmitting apparatus as defined in claim 15, wherein the scene delimitation position information represents start frame of each scene making up the video data and end frames of the scenes.

17. A view environment controlling apparatus comprising:

a receiving means that receives video data to be displayed on a displaying device and scene delimitation position information indicating delimitation position of each scene making up the video data, and

a controlling means that uses a feature quantity of the video data and the scene delimitation position information to control illumination light of a lighting device disposed around the displaying device.

18. The view environment controlling apparatus as defined in claim 17, wherein the controlling means retains the illumination light of the lighting device substantially constant in the same scene of the video data.

19. A view environment control system comprising the view environment controlling apparatus as defined in claim 17 or 18 and a lighting device having view environment illumination light controlled by the view environment controlling apparatus.

20. A data transmitting method of transmitting video data made up of one or more scenes,

wherein scene delimitation position information indicating delimitation position of each scene of the video data is transmitted in addition to the video data.

21. A data transmitting method of transmitting scene delimitation position information indicating delimitation position of each scene making up video data in response to a request from the outside,

wherein the scene delimitation position information represents start frame of each scene making up the video data.

22. A view environment controlling method comprising the steps of:

receiving video data to be displayed on a displaying device and scene delimitation position information indicating delimitation position of each scene making up the video data, and

controlling illumination light of a lighting device disposed around the displaying device using a feature quantity of the video data and the scene delimitation position information.

23. The view environment controlling method as defined in claim 22, wherein the illumination light of the lighting device is retained substantially constant in the same scene of the video data.