Invention Grant
- Patent Title: Low complexity event detection for video programs
- Patent Title (中): 视频节目低复杂度事件检测
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Application No.: US12422735Application Date: 2009-04-13
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Publication No.: US08195034B2Publication Date: 2012-06-05
- Inventor: Masato Shima , Hiroshi Takaoka
- Applicant: Masato Shima , Hiroshi Takaoka
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Robert D. Marshall, Jr.; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H04N5/93
- IPC: H04N5/93

Abstract:
A video processing method for detecting significant events from a video program includes computing short-time sub-band energies in the audio for plural audio sub-bands, detecting scene boundaries where a weighted sum of these short-time sub-band energies are less energy threshold for longer than an time interval, segmenting the video program into a plurality of scenes by the boundaries, removing scenes shorter than a segment time interval and classifying and ranking the remaining scenes by audio. A second segmenting and removal is based upon a second energy threshold and a second time interval or when energy in a lowest frequency sub-band is greater than a predetermined bass energy threshold. The first segment time interval may be recomputed based upon the distribution of length of the remaining scenes.
Public/Granted literature
- US20100260466A1 Low Complexity Event Detection For Video Programs Public/Granted day:2010-10-14
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