Finally, in technique of image retrieval based on vector quantization, analyzed and compared scalar quantization, vector quantization and classified vector quantization using statistical features for the performances of image retrieval 3、基于矢量量化的图象检索方法,研究对比了标量量化、矢量量化以及分类矢量量化等不同量化方法及其统计特征量用于图象检索的性能。
Finally, in technique of image retrieval based on vector quantization, analyzed and compared scalar quantization, vector quantization and classified vector quantization using statistical features for the performances of image retrieval 3、基于矢量量化的图象检索方法,研究对比了标量量化、矢量量化以及分类矢量量化等不同量化方法及其统计特征量用于图象检索的性能。
This algorithm combined joint-component vector quantization respectively with zero block and zero tree coding, scanned three component of color image separately and simplified separate coding into joint scanning and joint encoding 该方法将联合色彩分量矢量量化和零块、零树编码方法巧妙结合,把彩色图像的三个色彩分量单独扫描,单独编码的过程简化为联合扫描和联合编码的过程。
The main research work and contributions of this thesis are as follows : the thesis first makes a systematical review of the related key techniques, including the basic concepts and principles of the digital watermarking and vector quantization techniques 主要研究工作如下:系统地综述了和本课题研究内容相关的关键技术,包括数字水印技术和矢量量化技术的基本概念和基本原理。
The essence and the function of these features is focused in this chapter . chapter 3 introduces the basic algorithm of melp vocoders, and some advanced skills such as muti-stage vector quantization and super resolution pitch detect algorithm . chapter 4 utilizes the analysis platform to 第四章利用在matlab上搭建的分析平台上对语音信号进行了编解码的试验,分析了melp声码器的各种特征在语音编码中起到的作用。
In section two, we introduce some of the main coding theories that was in the g . 729, including the digital model of the production of speech signal, the linear prediction coding, vector quantization, lbg arithmetic and perceptual weighted filtering 第二章着重讨论了g729语音压缩协议中所涉及到的语音编码基础理论。主要包括语音信号产生的数字模型、语音信号的线性预测分析、矢量量化及其lbg算法和感知加权滤波器。
Following is the main work of this thesis : 1 . after researching on the basic theory of speech recognition, this thesis realizes talker-independent recognizer and speaker identification system with dtw ( dynamic time warping ) and vq ( vector quantization ) algorithm respectively 本文的主要研究工作如下:1.在研究语音识别的一些基本理论基础上,分别采用dtw和vq两种识别算法实现了非特定人孤立词识别系统和说话人辨认系统。
Secondly, a multilayered neural network trained with a learning vector quantization ( lvq ) algorithm is applied to pattern recognition of manifestations of the pulse and the classification ability of lvq network is compared with traditional near neighbor algorithm 其次,本文根据脉图的时域特征,采用学习矢量量化算法,训练文中确立的神经网络分类器,用以实现对脉图的识别。并比较了lvq神经网络分类器与传统近邻法的分类性能。
We start with the theory of vector quantization, and come on with the application of of v . q . technics on image processing . fist we developed a codebook creation algorithm based on the partial distortion theorem, which has greatly improved the quality of the initial codebook 我们采用理论与应用相结合的办法,从矢量量化的一些基本问题入手,克服其明显的缺点,辅助以其它高效的手段来使矢量量化技术从纯理论的研究走向实际的应用。
This chapter first introduces the principium of trellis coded vector quantization, then focuses on analyzing the algorithm of wavelet image classified weighted tcvq and its realization process, also gives tcvq application to wavelet image coding and its simulation results 首先分析了网格编码矢量量化的原理,在第三章矢量量化的基础上详细介绍了小波图像分类加权tcvq算法的原理和实现过程,并给出了tcvq在小波图像量化中的应用实例和仿真结果。