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Comparison of vector-quantized video codecs

机译:矢量量化视频编解码器的比较

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Abstract: In this paper, an image sequence coding scheme for very low bit-rate video coding is presented. The new technique utilizes windowed overlapped block matching motion compensation for the temporal coding scheme, and scheme, and vector quantization to reduce the spatial redundancy within the predicted image. There are many advantages associated with VQ, especially its capacity to operate in error- resilient coding system and furthermore, VQ does not suffer from blocking effects that are visually disjointed and has therefore a major advantage over DCT based methods. We examine the performance of various codebooks to remove the spatial redundancy within the difference frame. When the codec is configured to operate at 10.1 kbit/s, average PSNR values in excess of 32.86dB and 25.6dB are achieved for the 'Miss America' and 'Carphone' sequences respectively. !10
机译:摘要:本文提出了一种用于非常低比特率视频编码的图像序列编码方案。这项新技术对时间编码方案,方案和向量量化利用了窗口重叠块匹配运动补偿,以减少预测图像内的空间冗余。 VQ有许多优势,特别是其在防错编码系统中运行的能力,此外,VQ不会遭受视觉上脱节的阻塞效果,因此具有比基于DCT的方法更大的优势。我们检查了各种码本的性能,以消除差异帧内的空间冗余。当编解码器配置为以10.1 kbit / s的速度运行时,“美国小姐”和“汽车电话”序列的平均PSNR值分别超过32.86dB和25.6dB。 !10

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