Invention Grant
- Patent Title: Quantization matrix compression in video coding
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Application No.: US14575232Application Date: 2014-12-18
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Publication No.: US09143789B2Publication Date: 2015-09-22
- Inventor: Minhua Zhou , Vivienne Sze
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Peter K. McLarty; Frank D. Cimino
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N19/124 ; H04N19/105 ; H04N19/61 ; H04N19/463 ; H04N19/126 ; H04N19/85 ; H04N19/59 ; H04N19/117 ; H04N19/176 ; H04N19/60

Abstract:
A method of quantization matrix compression in a video encoder is provided that includes preprocessing a quantization matrix by performing at least one selected from down-sampling the quantization matrix and imposing 135 degree symmetry on the quantization matrix, performing zigzag scanning on the pre-processed quantization matrix to generate a one dimensional (1D) sequence, predicting the 1D sequence to generate a residual 1D sequence, and coding the residual 1D sequence using kth order exp-Golomb coding to generate a compressed quantization matrix, wherein k≧0.
Public/Granted literature
- US20150103892A1 QUANTIZATION MATRIX COMPRESSION IN VIDEO CODING Public/Granted day:2015-04-16
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