entropy coding meaning in English
熵编码，平均信息量编码
Examples
- According to the description of fcd 15444 - 1 , a j2k coding model is put forward . that is the innovation aspect of this paper . processes in the model such as discrete wavelet transform , quantization , arithmetic entropy coding , tiling etc are analyzed
本文提出了一个实现fcd15444 - 1的j2k编码模型，并对该编码模型中的离散小波变换、标量量化、算术熵编码、分块以及其他过程进行了分析，并且本文给出了该模型编码解码的各个部分的相关实现。 - Secondly , a software - based real - time h . 264 / avc is realized on x86 based ip stb by optimization for algorithms . based on the previous research of others , this dissertation implements an optimization of algorithm for motion compensation . context - adaptive variable length coding ( cavlc ) is chosen as entropy coding , a high
其次,本文讨论了基于x86架构ip机顶盒的h . 264解码器的纯软件优化问题,在参考相关资料的前提下,从算法角度实现了一种运动补偿的优化算法,以及一种基于分组的可变长快速cavlc熵解码算法。 - However , there still exists correlation between coefficients of sub - matrices after 4d - mdct . this thesis proposes a four dimensional matrix video coding method based on context to get rid of the correlation between coefficient sub - matrices further . it includes three parts as follows : firstly , this thesis presents a four - dimensional matrix video encoder and decoder model , which contains components of prediction , transform and entropy coding
实验结果表明,该方法与传统的二维编码方法相比,具有高压缩比和高图象质量的优点;与矢量量化编码相比,具有码表体积小,计算复杂度低的特点;与霍夫曼编码方法相比,在相同信噪比的条件下,对运动相对剧烈的视频序列压缩效果要更好。 - Then . this paper analyzes h . 263 - protocol for video coding which is the core part of the system . the h . 263 protocol integrates the prediction coding dct transform coding and entropy coding to realize the compression for video data . in addition , it describes the codec architecture and data format . this paper ( 1 ) presents a effective algorithm of motion estimation for inter - frame prediction coding ; ( 2 ) analyzes the way implementing 2 dimension dct transform by algorithm of 1 dimension fast dct transform ; ( 3 ) optimizes the above procedures with the mmx and sse of intel . then comes up with an effective dct algorithm
接着，着重分析了系统的核心部分： h . 263视频编码协议。该协议将预测编码、 dct变换编码和熵编码相结合实现对视频数据的压缩，并规定了编码器的总体结构和数据格式。本文( 1 )提出了一种有效的运动估计算法进行帧间预测编码； ( 2 )分析了通过一维dct快速算法完成二维dct变换编码的方法； ( 3 )应用intel的mmx和sse对上述过程进行了优化，并结合mmx和sse技术提出了一种有效的dct计算方法。 - Firstly , it summarized the basic conceptions of image compress processing , parallel processing technique and parallel algorithm briefly . then it emphasized on the network parallel computing environment and logp model of parallel computation . at last , this paper described the methods of developing parallel algorithm and applications through the designing , analyzing , optimizing , and implementing of digital image coding parallel algorithm , include intra - frame coding , inter - frame coding , entropy coding , etc
本文概述了并行处理技术和图像压缩技术；并详述了并行算法、图像压缩算法的基本概念和模型；着重讨论了网络并行logp模型及并行计算的开发环境；并通过fft并行编码算法、 dct并行编码算法、帧间运动估计和补偿的并行算法、游程并行编码算法等图像压缩编码处理的并行算法的设计、分析、优化及模拟实现，较全面、形象地展示了并行算法的开发方法及其应用。