自适应多值量化的亚抽样块截断编码
THE ADAPTIVE MULTI-LEVEL QUANTIZED SUBSAMPLED BLOCK TRUNCATION CODINGTHE ADAPTIVE MULTI-LEVEL QUANTIZED SUBSAMPLED BLOCK TRUNCATION CODING
-
摘要: 本文报道了一种新的活动图像编码算法,称为自适应多值量化的亚抽样块截断编码。模拟结果表明:这种新算法比现有的其它同类算法有更好的性能,压缩比为30,信噪比为35.4dB,图像主观质量良好,在现有个人计算机上可以用软件实时实现。Abstract: In this paper, a novel moving picture coding algorithm, called the adaptive multilevel quantized subsampled block truncation coding is presented. The experiments show that this algorithm has better performance than the other algorithms of the same kind and can be realized in real time with software in current PC, the compression ratio is 30 and the peak signal to noise ratio is 35.4 dB.
-
CCITT Draft Recommendation H.261, Video Codec for Audio-Visual Services at P64Kbps, Study Group 15, August 1990.[2]MPEG Standard Draft ISO-IEC/JTC1 SC29 on 22, November 1991.[3]ITU-T Draft Recommendation H.263, Video Coding for Low Bitrate Communication, Study Group 15, May 1996.[4]涂国防,张灿.会议电视编码中的块自适应递归算法.电子科学学刊,1996, 18(1): 25-30.[5]Scotton P, Mense J. Motion compensated coder for video conference. Image Commun., 1996, 6(6): 421-433.[6]Tu Guofang. Block adaptive gradient algorithm for motion compensated predictive coding. IC-[7]CASS96, Shanghai: 1996, 192-194.[8]李津生,涂国防.综合业务数字网.台湾儒林公司出版社,1992,第9. 4节.[9]Huang H C, Wu J L. Real-time software based moving picture coding system. Image Commun.,[10]94,6(4): 173-187.[11]Delp J E, Mitchell R O. Image compression using block truncation coding. IEEE Trans. on Comm., 1979, COM-27(4): 1335-1342.[12]Ramana Rao Y V, Eswaram C. New bitrate reduction techniques for block truncation coding. IEEE Trans. on Comm., 1996, COM-44(10): 1247-1250. -
计量
- 文章访问数: 2212
- HTML全文浏览量: 91
- PDF下载量: 519
- 被引次数: 0
下载:
