Invention Grant
US08509592B2 Image difference detection method and apparatus, scene change detection method and apparatus, and image difference value detection method and apparatus
有权
图像差分检测方法和装置，场景变化检测方法和装置，以及图像差值检测方法和装置
- Patent Title: Image difference detection method and apparatus, scene change detection method and apparatus, and image difference value detection method and apparatus
- Patent Title (中): 图像差分检测方法和装置，场景变化检测方法和装置，以及图像差值检测方法和装置
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Application No.: US12595222Application Date: 2008-05-16
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Publication No.: US08509592B2Publication Date: 2013-08-13
- Inventor: Yoshiaki Kusunoki
- Applicant: Yoshiaki Kusunoki
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2007-134017 20070521; JP2007-225154 20070831
- International Application: PCT/JP2008/059021 WO 20080516
- International Announcement: WO2008/143167 WO 20081127
- Main IPC: H04N9/80
- IPC: H04N9/80 ; H04N9/70
Abstract:
There are provided steps of extracting parts of two image data as areas for analysis (S702, S704) and an image difference detection step (S707) of detecting an image difference between the two images, based on a difference in image characteristic values of the regions for analysis; the regions for analysis in the two image data have identical size. If no image difference is detected, the region extraction steps may expand the regions for analysis (S707) by adding part or all of the image data that was not previously included in the regions for analysis (S704). Scene changes can be done rapidly in images and video.
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