Invention Grant
- Patent Title: Method and apparatus for encoding/decoding residual data based on a plurality of transformations
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Application No.: US17970214Application Date: 2022-10-20
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Publication No.: US12003772B2Publication Date: 2024-06-04
- Inventor: Bae Keun Lee
- Applicant: KT CORPORATION
- Applicant Address: KR Gyeonggi-do
- Assignee: KT CORPORATION
- Current Assignee: KT CORPORATION
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP Legal Services, LLC
- Priority: KR 20180065896 2018.06.08
- The original application number of the division: US17056961
- Main IPC: H04N11/02
- IPC: H04N11/02 ; H04N19/132 ; H04N19/176 ; H04N19/60 ; H04N19/88
Abstract:
An image decoding method according to the present invention can comprise the steps of: acquiring residual coefficients of a current block; dequantizing the residual coefficients; performing secondary inverse transformation on the dequantized residual coefficients; and performing primary inverse transformation on the performance result of the secondary inverse transformation. The secondary inverse transformation can be performed for a partial region of the current block.
Public/Granted literature
- US20230039970A1 METHOD AND APPARATUS FOR ENCODING/DECODING RESIDUAL DATA BASED ON A PLURALITY OF TRANSFORMATIONS Public/Granted day:2023-02-09
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