Invention Grant
- Patent Title: Video encoding method and video encoding apparatus and video decoding method and video decoding apparatus for signaling SAO parameters
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Application No.: US14415454Application Date: 2013-07-16
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Publication No.: US09787992B2Publication Date: 2017-10-10
- Inventor: Elena Alshina , Alexander Alshin , Jeong-hoon Park
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- International Application: PCT/KR2013/006343 WO 20130716
- International Announcement: WO2014/014251 WO 20140123
- Main IPC: H04N19/14
- IPC: H04N19/14 ; H04N19/103 ; H04N19/13 ; H04N19/186 ; H04N19/463 ; H04N19/82 ; H04N19/91 ; H04N19/86

Abstract:
The present disclosure relates to signaling of sample adaptive offset (SAO) parameters determined to minimize an error between an original image and a reconstructed image in video encoding and decoding operations. An SAO decoding method includes obtaining context-encoded leftward SAO merge information and context-encoded upward SAO merge information from a bitstream of a largest coding unit (MCU); obtaining SAO on/off information context-encoded with respect to each color component, from the bitstream; if the SAO on/off information indicates to perform SAO operation, obtaining absolute offset value information for each SAO category bypass-encoded with respect to each color component, from the bitstream; and obtaining one of band position information and edge class information bypass-encoded with respect to each color component, from the bitstream.
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