Invention Grant
US08976861B2 Separately coding the position of a last significant coefficient of a video block in video coding
有权
对视频编码中视频块的最后一个有效系数的位置进行单独编码
- Patent Title: Separately coding the position of a last significant coefficient of a video block in video coding
- Patent Title (中): 对视频编码中视频块的最后一个有效系数的位置进行单独编码
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Application No.: US13302996Application Date: 2011-11-22
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Publication No.: US08976861B2Publication Date: 2015-03-10
- Inventor: Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
- Applicant: Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H04B1/66
- IPC: H04B1/66 ; H04N7/12 ; H04N11/02 ; H04N11/04 ; G06K9/46 ; H04N19/14 ; H03M7/40 ; H03M7/30 ; H04N19/18 ; H04N19/70 ; H04N19/129 ; H04N19/176 ; H04N19/61 ; H04N19/436 ; H04N19/13

Abstract:
In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, wherein the apparatus includes a video coder configured to code information that identifies a position of a last non-zero coefficient within the block according to a scanning order associated with the block prior to coding information that identifies positions of other non-zero coefficients within the block, including at least one of the following: coding a one-dimensional position within the block that identifies the position of the last non-zero coefficient; coding a two-dimensional position within the block that identifies the position of the last non-zero coefficient, and coding a flag that indicates whether the last non-zero coefficient is located within a range of positions within the block, and coding the one-dimensional position when the last non-zero coefficient is located within the range, and otherwise coding the two-dimensional position.
Public/Granted literature
- US20120140813A1 SEPARATELY CODING THE POSITION OF A LAST SIGNIFICANT COEFFICIENT OF A VIDEO BLOCK IN VIDEO CODING Public/Granted day:2012-06-07
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