Invention Grant
- Patent Title: Method, apparatus and system for encoding and decoding the significance map for residual coefficients of a transform unit
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Application No.: US17243380Application Date: 2021-04-28
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Publication No.: US11405640B2Publication Date: 2022-08-02
- Inventor: Christopher James Rosewarne
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: AU2012200345 20120120
- Main IPC: H04N19/593
- IPC: H04N19/593 ; H04N19/176 ; H04N19/46 ; H04N19/13 ; H04N19/11 ; H04N19/70 ; H04N19/91 ; H04N19/96

Abstract:
Disclosed is a method of decoding a plurality of coding units from a bitstream of video data. The method determines a coding unit structure of the plurality of coding units from a first data block of the bitstream. The coding unit structure describes a division of a coding unit into the plurality of coding units. The method decodes, according to the determined coding unit structure, bypass encoded data for the plurality of coding units from a second data block of the bitstream. The method decodes, according to the determined coding unit structure, residual data for the plurality of coding units from a third data block of the bitstream. The method then forms the plurality of coding units from the bitstream using the residual data and the bypass encoded data. A method of encoding is also disclosed.
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