Invention Application
- Patent Title: METHODS AND SYSTEMS OF PERFORMING PREDICTIVE RANDOM ACCESS USING A BACKGROUND PICTURE
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Application No.: US15131574Application Date: 2016-04-18
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Publication No.: US20170105005A1Publication Date: 2017-04-13
- Inventor: Ying Chen , Xuerui Zhang , Mayank Tiwari , Ning Bi , Prasanjit Panda
- Applicant: QUALCOMM Incorporated
- Main IPC: H04N19/159
- IPC: H04N19/159 ; H04N19/169 ; H04N19/172 ; H04N19/58 ; H04N19/105

Abstract:
Techniques and systems are provided for performing predictive random access using a background picture. For example, a method of decoding video data includes obtaining an encoded video bitstream comprising a plurality of pictures. The plurality of pictures include a plurality of predictive random access pictures. A predictive random access picture is at least partially encoded using inter-prediction based on at least one background picture. The method further includes determining, for a time instance of the video bitstream, a predictive random access picture of the plurality of predictive random access pictures with a time stamp closest in time to the time instance. The method further includes determining a background picture associated with the predictive random access picture, and decoding at least a portion of the predictive random access picture using inter-prediction based on the background picture.
Public/Granted literature
- US10063861B2 Methods and systems of performing predictive random access using a background picture Public/Granted day:2018-08-28
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