论文部分内容阅读
图象编码技术经过近４０多年的发展，某些技术已经较为成熟，特别是以离散余弦变换（ＤＣＴ）＋运动补偿（ＭＣ）为代表的一类算法得到了广泛的应用和认可，并被许多国际标准所采纳，如ＪＰＥＧ，Ｈ２６１，ＭＰＥＧ－１，ＭＰＥＧ－２等。近年来随着ＶＬＳＩ技术及信息理论的进步，很多复杂算法的实现已成为可能，利用ＲＩＳＣ及ＦＰＧＡ芯片实现ＭＰＥＧ－２标准的ＭＰ＠ＭＬ级的硬件，质量较为理想，在目标码率为６～８Ｍｂｐｓ时，可用于数字电视的广播
After nearly 40 years of development, some techniques have been mature. Especially, a class of algorithms represented by discrete cosine transform (DCT) + motion compensation (MC) has been widely used and accepted by many Adopted by international standards, such as JPEG, H261, MPEG-1, MPEG-2 and so on. In recent years, with the progress of VLSI technology and information theory, the implementation of many complex algorithms has become possible. The hardware with MPEG-2 standard MP @ ML using RISC and FPGA chips is of better quality. At the target code rate of 6 ~ 8Mbps, can be used for digital television broadcasting