| H.264中的整数DCT及其蝶形算法 |
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| 引用本文： | 孙少林,汤伟,任小青,申莉华.H.264中的整数DCT及其蝶形算法[J].黑龙江电子技术,2013(10):165-166,169. |
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| 作者姓名： | 孙少林 汤伟 任小青 申莉华 |
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| 作者单位： | 总参通信训练基地,河北宣化075100 |
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| 摘 要： | H.264是应用非常广泛的视频图像编码标准.其频域图像预处理采用的是基于4×4图像块的整数DCT.研究了如何由4×4浮点DCT得到4×4整数DCT,并设计了4×4整数DCT的蝶形算法,比较了蝶形算法与普通算法的运算量.
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| 关 键 词： | 4×4浮点DCT 4×4整数DCT 蝶形算法 |
The integer DCT in H.264 and its butterfly algorithm |
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| Authors: | SUN Shao-lin TANG Wei REN Xiao-qing SHEN Li-hua |
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| Affiliation: | ( Communication Training Base of PLA General Staff Headquarters, Xuanhua 075100, Heibei Province, China) |
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| Abstract: | H. 264 is a video coding standard is widely used. The frequency domain image preprocessing used is based on the 4 ×4 image block integer DCT. This paper studies how to from 4 × 4 floating-point DCT get 4 ×4 integer DCT, and designed the butterfly algorithm for 4 ×4 integer DCT, compares the computation butterfly algorithm and general algorithm. |
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| Keywords: | 4 ×4 floating-point DCT 4 × 4 integer DCT butterfly algorithm |
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