查询词典 hash coding

Scalable Zerotree Wavelet Entropy coding codes the low-low band uniquely and the other bands with the multiscale zerotree entropy coding scheme to achieve a fully scalable.

尺度小波零树编码将低通子带独立编码、其它子带多尺度零树熵编码，实现了自然/合成视频信息的空间/质量尺度完全可调。

Both LDPC codes and OFDM technology are studied in this paper. The working and the results obtained are summarized as follow:1. The definition of LDPC codes and its coding/decoding ideas are systematically summarized, a general algorithm of changing any parity-check matrix to lower triangular form, which is suitable for quick encoding, is given out, along with a girth checking algorithm. Absolutely random LDPC codes construction is improved, a new half random construction of LDPC codes with linear time coding and no 4-cycles is brought out.

系统地阐述了低密度校验码的定义及编译码原理，提出了一种将任何校验矩阵变换成适于快速编码的近似下三角形式的通用算法及一种围长检测算法，对完全随机的校验矩阵构造法进行了改进，提出了一类消除4环且可近似线性编码的校验矩阵半随机构造法，仿真表明，在高编码效率情况下，改进后的半随机构造法，其性能稍优于完全随机构造法，并可以线性时间编码，因此更适合实际应用。

Particularly, to prevent the exact coding order from transmission, a model-based approach, derived from maximum likelihood principle, is used to decide the coding priority.

特别的是，为了避免传送实际的编码顺序，精化优先权由一个使用最大可能性原理所推导的模型来决定。

In this paper, a real-valued-coding niche genetic algorithm modifying the binary-coding niche genetic algorithm (Goldberg and Richardson, 1987) is developed for searching global minimum value of a multiple-peak function efficiently.

本文修改Goldberg 与 Richardson(1987)提出之二位元编码利基遗传演算法，发展一实数编码利基遗传演算法以搜寻多峰多谷函数之全域最小值。

A network coding based transmission scheme is proposed for multi-antennas based uplink wireless relay networks. Performance is evaluated from the perspective of ergodic capacity and outage probability, and is compared with ordinary receive diversity scheme and orthogonal space time coding scheme.

针对配置多天线的上行无线中继网络，提出了一种基于网络编码的传输方案，从遍历容量和中断概率的角度对其进行了分析，并与基于同样拓扑的普通接收分集方案和正交空时编码方案进行了性能比较。

After the structure of zero tree for embedded coding is analyzed in detail, the coding information of each bit plane for a zero tree can be obtained simultaneously.

提出了比特平面并行处理的零树编码结构。

We research the algorithm of scalar quantization which fits the human visual model, and present tree character plane coding and duplicate tree coding algorithm.

在量化方面，进行了结合人眼视觉特性的标量量化方法的研究，提出了小波图像压缩的树特征平面编码及其优化算法——二重树编码算法，取得了很好的压缩效果。

In this paper,a new coding scheme is proposed,which is named as prefix division coding scheme.

在对现有编码机制进行综述的前提下，提出一种新的XML文档编码机制——前缀整除编码机制。

The embodiment of the invention provides a method for coding the low-density parity checking code, comprising the following steps: in the iteration for the time of k, the variable node corresponding to an overturn function meeting the preset condition is overturned; according to the preset parameter, the reliability of the overturned variable node is corrected; according to the sequence of the overturned variable node, the checkout sub sequence is determined so as to output the coding result.

本发明实施例提供了一种低密度奇偶校验码的译码方法，主要包括：在第k次迭代中，对满足预设条件的翻转函数对应的变量节点进行翻转，根据预设的参数修正被翻转的变量节点的可靠度，根据翻转后的变量节点序列，确定校验子序列，以便输出译码结果。

Restore the quantization coding firstly and add it to restoration error quantization coding.

还原时先恢复原图像的量化编码，再加上恢复的误差量化编码。

A backer of an Afghan law that critics say legalizes marital rape has rejected the international outcry as foreign meddling.

饱受批评的一项法律的拥护者说合法化的婚内暴力不会受国际舆论的干涉。

Years ago, a ancient Egyptian fleet went to the Land of punt for seeking a kind of flavor named "myrrh", and aromatic plants which has dense exotic style for the queen Hatshepsut.

3500年前的一个古埃及的舰队到&彭特之地&寻找一种叫没药的香料。