Invention Application
- Patent Title: ADAPTIVE GROUP OF PICTURES (AGOP) STRUCTURE DETERMINATION
- Patent Title (中): 自适应组图(AGOP)结构测定
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Application No.: US11957582Application Date: 2007-12-17
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Publication No.: US20090154816A1Publication Date: 2009-06-18
- Inventor: Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi
- Applicant: Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM INCORPORATED
- Current Assignee: QUALCOMM INCORPORATED
- Current Assignee Address: US CA San Diego
- Main IPC: G06K9/36
- IPC: G06K9/36

Abstract:
This disclosure is directed to techniques for determining a picture type for each of a plurality of frames included in a video sequence based on cross-correlations between the frames. The cross-correlations include first order cross-correlations between image information within pairs of frames included in the video sequence and second order cross-correlations between pairs of the first order cross-correlations. The first order cross-correlations may be analyzed to detect video transitional effects between the frames. The first and second order cross-correlations may be comparatively analyzed to determine temporal similarities between the frames. Therefore, the correlation-based determination techniques determine picture types for the frames based on the video transitional effects and the temporal similarities. The correlation-based determination techniques may calculate the first order cross-correlations between images within pairs of frames, or between sets of subimages within pairs of frames that are then averaged over the subimages for each of the pairs of frames.
Public/Granted literature
- US09628811B2 Adaptive group of pictures (AGOP) structure determination Public/Granted day:2017-04-18
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