Invention Grant
- Patent Title: Method and apparatus for encoding/decoding video signal by using edge-adaptive graph-based transform
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Application No.: US16074265Application Date: 2017-02-01
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Publication No.: US11695958B2Publication Date: 2023-07-04
- Inventor: Yung-Hsuan Chao , Hilmi E. Egilmez , Antonio Ortega , Sehoon Yea , Bumshik Lee
- Applicant: LG ELECTRONICS INC. , UNIVERSITY OF SOUTHERN CALIFORNIA
- Applicant Address: KR CA Seoul
- Assignee: LG ELECTRONICS INC.,UNIVERSITY OF SOUTHERN CALIFORNIA
- Current Assignee: LG ELECTRONICS INC.,UNIVERSITY OF SOUTHERN CALIFORNIA
- Current Assignee Address: KR Seoul; US CA Los Angeles
- Agency: Dentons US LLP
- International Application: PCT/KR2017/001052 2017.02.01
- International Announcement: WO2017/135662A 2017.08.10
- Date entered country: 2021-04-08
- Main IPC: H04N11/02
- IPC: H04N11/02 ; H04N19/61 ; H04N19/107 ; H04N19/124 ; H04N19/13 ; H04N19/14 ; H04N19/182
Abstract:
The present invention provides a method for encoding a video signal based on an Edge Adaptive Graph-Based Transform (EA-GBT) including detecting a step edge or a ramp edge from a residual signal; generating a graph signal based on at least one of the step edge or the ramp edge; obtaining an EA-GBT coefficient by performing the EA-GBT for the graph signal; quantizing the EA-GBT coefficient; and entropy-encoding the quantized EA-GBT coefficient.
Public/Granted literature
- US20210227261A1 METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO SIGNAL BY USING EDGE-ADAPTIVE GRAPH-BASED TRANSFORM Public/Granted day:2021-07-22
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