| 摘要: |
| 根据ITU-T提出的H.264视频编解码标准,对JM算法及TI Blackfin 533 DSP自身特点进行了分析,将标准中编码采用的整数离散余弦变换(DCT)、量化,解码采用的反DCT变换、反量化的JM算法成功移植到DSP上面,同时根据DSP的特点进行软硬件优化,达到了较好效果。 |
| 关键词: 图像编码,数字信号处理,离散余弦变换,整数变换 |
| DOI： |
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| 基金项目: |
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| Optimized Implementation of H.264 DCT and Quantization Based on ADSP-BF533 |
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| Abstract: |
| According to international video coding/decoding standard H.264 provided by ITU-T,the JM algorithm and self-characteristic of TI Blackfin 533 DSP are analyzed.The JM algorithm that uses integer DCT and quantization for coding and uses inverse DCT(IDCT) and inverse quantization for decoding in standards is transplanted to DSP successfully.At the same time,the software and hardware optimizations are implemented according to DSP characteristics,and good result is achieved. |
| Key words: image coding,digital signal processing,DCT,integer transform |
