compression technique meaning in English
压缩技术
Examples
- Presently , most of the researchers focused their attention on the lossy compression of bionedical signals , but lossless and near - lossless compression is practically expected because the general lossy compression techniques can not serve the high fidelity requirement of signals in this field
鉴于当前生物医学信号压缩技术主要偏重于有损压缩技术的研究，而较少研究无损近无损压缩技术，然而在临床和科研应用中，首先要求的是生物医学信号必须具有高可信度，所以更期望使用无损或近似无损的压缩技术。 - With the development of asic technology , the improvement of pc processor ' s performance and the popularity of internet , multi - channel real - time surveillant system has become a developing hotspot . novel video compression technique , pc based structure and network transmission makes it excel to the former system
随着半导体技术的发展、 pc机运算能力的不断提高以及网络的日益普及，同时视频压缩技术的不断进步，利用新的压缩技术，以pc机为核心、通过网络传输的多路实时监控系统成为监控领域的一个新的开发热点。 - 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。