Invention Grant
- Patent Title: Method and apparatus for detection and concealment of reference and non-reference video frames
- Patent Title (中): 用于检测和隐藏参考和非参考视频帧的方法和装置
-
Application No.: US11988073Application Date: 2006-06-06
-
Publication No.: US08428147B2Publication Date: 2013-04-23
- Inventor: Zhenyu Wu , Frederic Landais , Purvin Bibhas Pandit , Jill MacDonald Boyce
- Applicant: Zhenyu Wu , Frederic Landais , Purvin Bibhas Pandit , Jill MacDonald Boyce
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne-Billancourt
- Agent Robert D. Shedd; Guy H. Eriksen
- International Application: PCT/US2006/021890 WO 20060606
- International Announcement: WO2007/018709 WO 20070215
- Main IPC: H04N7/12
- IPC: H04N7/12

Abstract:
There are provided method and apparatus for detecting and concealing reference and non-reference video frames. A video decoder includes an entropy decoder, an error detector, and an error concealer. The entropy decoder is for decompressing a video bitstream intended to have a fixed frame rate and parsing the decompressed video bitstream to find picture order counts for frames of the decompressed video bitstream. The error detector is for determining that a particular frame of the decompressed video bitstream is missing based upon the picture order counts. The error concealer is for concealing the particular frame. The method is accomplished by decompressing and parsing the video bitstream to find picture order counts for frames of the decompressed video bitstream and then determining that a particular frame of the decompressed video bitstream is missing based upon comparison of their associated picture order counts, and then concealing that particular frame.
Public/Granted literature
- US20090175344A1 Method and Apparatus for Detection and Concealment of Reference and Non-Reference Video Frames Public/Granted day:2009-07-09
Information query