Invention Grant
- Patent Title: Multi-stage block coding
-
Application No.: US17167413Application Date: 2021-02-04
-
Publication No.: US11252418B2Publication Date: 2022-02-15
- Inventor: Krishnakanth Rapaka , Alexandros Tourapis , David William Singer
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fish & Richardson P.C.
- Main IPC: H04N19/176
- IPC: H04N19/176 ; H04N19/103 ; H04N19/119 ; H04N19/124 ; H04N19/136 ; H04N19/159 ; H04N19/50

Abstract:
A multi-stage coding method includes receiving an input block of data for encoding and one or more previously coded samples associated with the input block. The input block is segmented into at least a first sub-region and a second sub-region. A prediction for the first sub-region is generated based on the one or more previously coded samples. Residual data for the first sub-region is obtained using the prediction for the first sub-region. A reconstruction of the first sub-region is generated using the residual data for the first sub-region and the prediction for the first sub-region. A prediction for the second sub-region is generated using the reconstruction of the first sub-region. Residual data for the second sub-region is obtained using the prediction for the second sub-region. The input block is encoded based in part on the residual data for the first region and the residual data for the second region.
Public/Granted literature
- US20210243455A1 MULTI-STAGE BLOCK CODING Public/Granted day:2021-08-05
Information query