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基于块截断编码和运动补偿的纯软件视频编解码算法
Software-Only Video Codec Based on Block Truncation Coding and Motion Compensation
【摘要】 本文报告了一种新的纯软件视频编解码算法 .利用改进的块截断编码和基于一步预测运动估计的运动补偿技术 ,该算法能够在现有的普通PC机上实时实现全彩色视频电话图像序列的编解码 ,比特率小于 10 0Kbps.与已有的其他同类算法相比 ,本文的算法在保持实时性的前提下 ,比特率大大下降 ,图像质量明显提高 .
【Abstract】 A novel software-only video codec is presented in this paper.By using modified block truncation coding and motion compensation technique based on one-step predictive motion estimation,the proposed codec can compress real-time videophone pictures below the bit-rate of 100 kbps on current PC.Compared to other similar algorithms,the presentation has substantially improved performance in bit-rate and PSNR at the premise of keeping the real-time property.
【关键词】 纯软件视频;
块截断编码;
运动补偿;
亚抽样与插值;
【Key words】 software-only video; block truncation coding; motion compensation; decimation/interpolation;
【Key words】 software-only video; block truncation coding; motion compensation; decimation/interpolation;
【基金】 国家自然科学基金! (No .69771 0 2 2 )
- 【文献出处】 电子学报 ,Acta Electronica Sinica , 编辑部邮箱 ,2001年02期
- 【分类号】TN919.8
- 【被引频次】2
- 【下载频次】65