Invention Grant
- Patent Title: Method and apparatus for encoding and decoding video by using pattern information in hierarchical data unit
-
Application No.: US14704036Application Date: 2015-05-05
-
Publication No.: US09641855B2Publication Date: 2017-05-02
- Inventor: Min-su Cheon , Jung-hye Min , Hae-kyung Jung , Il-koo Kim
- 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
- Priority: KR10-2010-0003557 20100114
- Main IPC: H04N19/44
- IPC: H04N19/44 ; H04N19/46 ; H04N19/60

Abstract:
A method of decoding an encoded video including determining at least one coding unit by using split information extracted from a bitstream, obtaining first pattern information indicating whether residual samples of a coding unit among the at least one coding unit are equal to 0, when the first pattern information indicates the residual samples are not equal to 0, extracting from the bitstream transformation index information indicating whether a transformation unit of a current level included in the coding unit from among the at least one coding unit is split, when the transformation index information indicates a split of the transformation unit of the current level, splitting the transformation unit of the current level into transformation units of a lower level, and when the transformation index information indicates a non-split of the transformation unit of the current level, obtaining second pattern information for the transformation unit of the current level, wherein the second pattern information indicates whether the transformation unit of the current level contains one or more transform coefficients not equal to 0, wherein the transformation unit of the current level is split into four transformation units of the lower level.
Public/Granted literature
Information query