With respect to pattern recognition or the like, this invention is aimed at reducing the arithmetic processing steps of determining analogy between an inputted pattern and reference patterns in order to enhance
Pattern recognition with a quantization codebook 来自 百度文库 喜欢 0 阅读量: 29 申请(专利)号: EP96304580.2 申请日期: 19960620 公开/公告号: EP0750273B1 公开/公告日期: 20010919 申请(专利权)人: CANON KK 发明人:Y Masayuki,K Yasuhiro 国省代号: JP ...
For a zero-mean, unit variance, memory-less Gaussian source and a squared-error measure, a 1 bit/sample two-dimensional quantizer with a codebook-excited feedforward neural network is found always to escape from the local minima and converge to the best one of the three local minima which ...
VQ, 即Vector Quantization,矢量量化,在多个场景下使用,如图像压缩,声音压缩,语音识别等。 什么是VQ? Vector quantizer(矢量量化器)将矢量空间Rk中的 k 维矢量映射到矢量的有限集合Y={yi:i=1,2,...,N}。 每个向量yi称为code vector(代码向量)或codeword(码字)。 所有码字的集合称为codebook(码本)。 与每...
最近老是接到关于语音方向的活,所以经常会遇到VQ这种简化数据的方法。我个人的感觉就是将模拟信号转为分好类的数字信号中。 举个简单的栗子,使用拼音“特”和“踢”这两个音来替代“t”这个英语字母在英语单词里的所有发音。特、踢看作VQ的码本向量(codebook vector),如果他们是码本的第100个和第101个向量,那...
Colorization is a computer aided process of addingcolors to a grayscale image or videos. The paper presents use ofassorted window sizes and their impact on colorization ofgrayscale images using Vector Quantization (VQ) Codebookgeneration techniques in different color spaces such as RGB andKekre's ...
Codebook Optimization in Vector Quantization using Genetic Algorithm Pramod Uttamrao Chavan Assistant Professor, department of Electronics & ..
摘要: A fast method for searching an unstructured vector quantization (VQ) codebook is introduced and analyzed. The method, fine-coarse vector quantization (FCVQ), operates in two stages: a `fine' struct...年份: 1991 收藏 引用 批量引用 报错 分享 全部来源 求助全文 国家科技图书文献中心 (...
codebook 定义为 : codebook 会把 k-D 空间划分为 M个区域 执行量化的过程就是对于每个输入向量,用与它最近的 codevector 来近似,过程如下: 在开始训练之前,为 codebook 构造一个称为 neighborhood structure 的结构,用 graph 表示。其中 是输入顶点集合,每个顶点 都与一个 codevector 关联. 是graph 中...
Vectors associated with multiple sources are quantized with a codebook. A mapping function associates each source with a subset of codevectors in the codebook, each subset being defined prior to quant