Due to the digitization of multimedia contents,it is very easy to perform illegal copy,storage,and distribution without any distortion of quality.Furthermore,the manners to claim,protect,and manage th
We propose a novel DOCR that has high antenna isolation,good output signal quality,good selectivity,relatively low time delay,and maintaining synchronization.The structure of EDOCR is basically same a
We present a near-optimal blind decision feedback equalizer (DFE) for Advanced Television Systems Committee digital television (DTV) receivers.By adopting a modified trellis decoder (MTD) with trace b
The reception performance of terrestrial digital television is significantly degraded in severe multipath environments in VSB(vestigial side band) system.Digital television signals from broadcaster su
介绍了我国即将制定完成的自主音视频信源编码标准AVS(Audio Video coding Standard)的制定过程、技术方案.与MPEG-2,MPEG-4和H.264等国际标准相比,AVS的优势为:性能高、复杂度低、实现成本低、专利授权费用低.对数字电视运营业和数字电视制造业应用AVS的模式分析表明,数字电视产业采用AVS的收益远大于投入.
This article studies the compressed domain motion compensation and spatial definition downscaling technology in video transcoding, solves two problems of existing algorithm: cant handle negative motio