Method and device for encoding and decoding video stream with sub-picture
The encoding method addresses the challenge of decoding sub-pictures with non-multiple sizes by including information that allows the decoder to accurately infer CTB splits, ensuring successful decoding.
JP2025081750AActive Publication Date: 2025-05-27CANON KK
Patent Information
- Application Number
- JP2025034026
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2019-12-17
- Filing Date
- 2025-03-04
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2040-09-07
Smart Images
Figure 2025081750000001_ABST
Abstract
To provide a method and a device for encoding and decoding a video bitstream that facilitates sub-picture replacement.SOLUTION: An encoding method includes dividing a picture into sub-pictures, determining a sub-picture size where the size of each sub-picture contains one region of interest present in the input video sequence, and when a division inference process is required, encoding the sub-picture size, which is information indicating the position of the division inference boundary of the sub-picture, into a bitstream, and encoding at least one slice constituting the sub-picture into the bitstream.SELECTED DRAWING: Figure 6
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Citation Information
Patent Citations
Method and device for decoding of compensation offsets for set of reconstructed samples of image
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