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首页> 外文期刊>Journal of Real-Time Image Processing >Hds, A Real-time Multi-dsp Motion Estimator For Mpeg-4 H.264 Avc High Definition Video Encoding
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Hds, A Real-time Multi-dsp Motion Estimator For Mpeg-4 H.264 Avc High Definition Video Encoding

机译:Hds,用于Mpeg-4 H.264 Avc高清晰度视频编码的实时多DSP运动估计器

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摘要

H.264 AVC video compression standard achieves high compression rates at the cost of a high encoder complexity. The encoder performances are greatly linked to the motion estimation operation which requires high computation power and memory bandwidth. High definition context magnifies the difficulty of a real-time implementation. EPZS and HME are two well-known motion estimation algorithms. Both EPZS and HME are implemented in a DSP and their performances are compared in terms of both quality and complexity. Based on these results, a new algorithm called HDS for Hierarchical Diamond Search is proposed. HDS motion estimation is integrated in a AVC encoder to extract timings and resulting video qualities reached. A real-time DSP implementation of H.264 quarter-pixel accuracy motion estimation is proposed for SD and HD video format. Furthermore HDS characteristics make this algorithm well suited for H.264 SVC real-time encoding applications.
机译:H.264 AVC视频压缩标准以高编码器复杂性为代价实现了高压缩率。编码器的性能与运动估计操作密切相关,后者需要较高的计算能力和存储带宽。高清晰度上下文会放大实时实现的难度。 EPZS和HME是两种众所周知的运动估计算法。 EPZS和HME都在DSP中实现,并且在质量和复杂性方面都比较了它们的性能。基于这些结果,提出了一种用于分层钻石搜索的称为HDS的新算法。 HDS运动估计集成在AVC编码器中,以提取时序并达到最终的视频质量。针对SD和HD视频格式,提出了H.264四分之一像素精度运动估计的实时DSP实现。此外,HDS特性使该算法非常适合H.264 SVC实时编码应用。

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