图像编码理论 meaning in English
theory of image coding
Examples
- First , this thesis analyzed the current development status , basic characters and problems of digital watermarking technology , advanced the general frame of digital watermarking processing system , and synoptically discussed the fractal and fractal image coding theories
首先，分析了目前数字水印技术的发展状况、基本特征和基本问题，归纳提出了数字水印处理系统的基本框架；概括性论述了分形与分形图像编码理论。 - In these days , image compression is put into practice widely in many fields such as biomedical applications , wireless communications , computer graphics etc . the paper is under the background of " the research on recognition algorithm of video signal sampling system in intelligent transportation system " , which is a project of hubei province scientific deparment . pointed to the problem of image compression in image signal sampling and transmitting real time , this paper mainly discusses and analyzes lossy compression of still images deeply based on theories of image coding , artificial neural network , wavelet transform , the paper presents a compression scheme for still images
本论文以湖北省科技厅项目“智能运输系统视频信号采集系统识别算法研究”为背景，针对图像信号采集和实时传输中的图像压缩问题，基于图像编码理论、人工神经网络理论和小波变换理论对静态图像的有损压缩技术进行了较深入的分析、比较和研究，提出了静态图像的有损压缩方案。 - We firstly summarize the basic theory on image code , introduce some familiar compression techniques and some international compression standards on image and video frequency ; and then , we introduce the basic theory on wavelet transform code and the jpeg2000 standard and its pivotal technique ; at last , we mainly study the embedded zerotrees wavelet ( ezw ) code , we propose a compression technique based on modification of original ezw coding , the main objective of this improved algorithm is to enhance compression ratio of an image with minimal loss during reconstruction , and we verify the improved algorithm ' s performance by doing experiments
首先概述图像编码理论的基本原理和方法，介绍了一些常见的压缩方法和一些涉及图像、视频的国际压缩标准；接着介绍了小波变换及其应用于图像压缩编码的相关理论，在此基础上介绍了jpeg2000标准及其关键技术；最后重点研究了基于小波变换的嵌入零树编码( ezw ： embeddedzerotreeswavelet )算法，并在此基础上提出了一种改进算法，改进算法目的是以较小的图像重建质量损失来获得压缩率的提高，并进行了实验验证，验证了该改进算法的合理性和有效性。