发明名称 |
Run length encoding in VLIW architecture |
摘要 |
A computer implemented method of video data encoding generates a mask having one bit corresponding each spatial frequency coefficient of a block during quantization. The bit state of the mask depends upon whether the corresponding quantized spatial frequency coefficient is zero or non-zero. The runs of zero quantized spatial frequency coefficients determined by a left most bit detect instruction are determined from the mask and run length encoded. The mask is generated using a look up table to map the scan order of quantization to the zig-zag order of run length encoding. Variable length coding and inverse quantization optionally take place within the run length encoding loop.
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申请公布号 |
US8233545(B2) |
申请公布日期 |
2012.07.31 |
申请号 |
US20070842224 |
申请日期 |
2007.08.21 |
申请人 |
AHUJA KAPIL;SHASTRY PAVAN V.;REDDY RATNA M. V.;TEXAS INSTRUMENTS INCORPORATED |
发明人 |
AHUJA KAPIL;SHASTRY PAVAN V.;REDDY RATNA M. V. |
分类号 |
H04N7/12 |
主分类号 |
H04N7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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