Invention Grant
- Patent Title: Compressed content object and action detection
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Application No.: US16728714Application Date: 2019-12-27
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Publication No.: US11568545B2Publication Date: 2023-01-31
- Inventor: R. Manmatha , Hexiang Hu , Deva Ramanan
- Applicant: A9.com, Inc.
- Applicant Address: US CA Palo Alto
- Assignee: A9.com, Inc.
- Current Assignee: A9.com, Inc.
- Current Assignee Address: US CA Palo Alto
- Agency: Hogan Lovells US LLP
- Main IPC: G06T7/20
- IPC: G06T7/20 ; G06F3/04812 ; G06F3/0482 ; G06F16/951 ; G06T7/174 ; G06T7/246 ; G06Q30/06

Abstract:
Various embodiments of a framework which allow, as an alternative to resource-taxing decompression, efficient computation of feature maps using a compressed content data subset, such as video, by exploiting the motion information, such as a motion vector, present in the compressed video. This framework allows frame-specific object recognition and action detection algorithms to be applied to compressed video and other media files by executing only on I-frames in a Group of Pictures and linearly interpolating the results. Training and machine learning increases recognition accuracy. Yielding significant computational gains, this approach accelerates frame-wise feature extraction I-frame/P-frame/P-frame videos as well as I-frame/P-frame/B-frame videos. The present techniques may also be used for segmentation to identify and label respective regions for objects in a video.
Public/Granted literature
- US20210342924A9 COMPRESSED CONTENT OBJECT AND ACTION DETECTION Public/Granted day:2021-11-04
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