- Patent Title: Efficient coding of video data in the presence of video annotations
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Application No.: US16420740Application Date: 2019-05-23
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Publication No.: US11109042B2Publication Date: 2021-08-31
- Inventor: Sudeng Hu , Xing Wen , Jae Hoon Kim , Peikang Song , Hang Yuan , Dazhong Zhang , Xiaosong Zhou , Hsi-Jung Wu , Christopher Garrido , Ming Jin , Patrick Miauton , Karthick Santhanam
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: BakerHostetler
- Main IPC: H04N19/172
- IPC: H04N19/172 ; H04N19/182 ; H04N19/124 ; H04N19/176 ; H04N19/52 ; H04N19/159

Abstract:
Systems and methods for coding a video to be overlaid by annotations are devised. A motion compensated predictive coding is employed, wherein coding parameters of video pixel blocks are determined based on the pixel blocks' relation to the annotations. A decoder decodes the video and annotates it based on metadata, obtained from the coder or other sources, describing the annotations' appearance and rendering mode.
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