第二章主要介绍了静态图像压缩技术，采用的理论基础。
Sequently the second chapter mainly introduces the image compressing technology and the basic theory.
同时，图像压缩技术也是多媒体技术中的一项关键技术。
Also, this technique is a key section in the multimedia field.
图像压缩技术在通信、介质存储、数据传输等领域发挥了重要作用。
It plays an important part in many fields, for example, communication, media storage and data transmission, etc.
除硬件本身的改善外，研究高性能的图像压缩技术变得越来越重要。
This casts increasing the urgency to develop new compression algorithms with high performance.
高清晰度，低比特率的图像压缩技术是研究井下电视的关键技术之一。
High quality, low bit rate image compression method is one of the key technologies to develop downhole video logging instrument.
本文回顾了近年来在低比特率图像压缩技术研究、开发及应用领域的简况。
The recent research, development and applications of low bitrate picture compression techniques are reviewed in this paper.
高光谱图像压缩技术是遥感数据存储和传输中的一个迫切需要解决的问题。
The compression technology of hyperspectral image is a key problem to be solved in the storage and transportation of remote sensing data.
图像压缩技术一直是图像处理领域的一门关键技术，也一直是研究的热点。
Image compression is always a critical technology in the image area and is also a hotspot in research area.
如何应用图像压缩技术实现遥感图像的高效存储和传输具有重要的现实意义。
How to store and transfer remote sensing images effectively with image compression technology is of grate practical significance.
这就要求图像压缩技术不仅要有良好的压缩效率，而且还可以灵活处理压缩码率。
This will be begged that the image compression technology not only have good compression efficiency but also can handle nimbly the compression code rate.
JPEG标准和MPEG标准将成为图像压缩技术实现标准化和通用化的重要里程碑。
The standards will be the cornerstone for the realization of standardization and generalization of IC techniques.
阐述了多媒体应用中的关键技术——数字图像压缩技术，及有关压缩的国际标准和芯片。
The digital image compression technology, the key technology in the multimedia applications, the international standards and chips about compression are illustrated in this paper.
本文通过介绍常见的图像压缩技术——哈夫曼编码和分形编码，提出了一些改进的方法。
This paper first introduces the common image compression technology-Huffman coding and fractal coding, and then proposes some improvements.
本论文主要研究了基于变换域上的两个图像处理技术，即数字水印技术和图像压缩技术。
In the dissertation, we study two technologies of image processing based on frequency domain. The one is on digital watermarking, the other is on image compressing.
它的H . 264图像压缩技术和集中管理软件能够提供极佳的录像质量和有效的存储。
Its H. 264 image compression and Centralized Management Software provide excellent image re-cording quality and efficient storage.
因此3G无线通讯网络和高效率图像压缩技术是无线图像传输技术需要进一步研究的重点。
So, the 3G wireless communication network and efficient image compression technology are the keys to future studies of wireless video transmission technology.
图像压缩技术随着计算机网络技术和多媒体技术的迅猛发展而成为国际上热门的研究课题。
Image compression becomes the hotspot of international academia along with the wide use of network and the rapid development of the multimedia techniques.
图像数据在存储及传输过程中占用了大量带宽资源，因此图像压缩技术就显得尤为重要了。
The image data occupies vast part of band resource in the storage and transmission process, therefore, image compression technology becomes more important than before.
CT图像在医学影像诊断中占有重要地位，CT图像压缩技术是PACS系统的重要组成部分。
CT Image plays an important role in medical imaging diagnosis. CT Image compression technology is the important part of PACS system.
为此，出现了新一代静止图像压缩技术JPEG2000，有可能成为未来新的图像压缩标准。
For this, ISO released again a new static image compress technique - JPEG2000, which may become the new image compression standard in the future.
近年来，电子器件和设备的处理能力和处理速度大幅提高，使得数字图像压缩技术不断进步，应用广泛。
In recent years, processing capacity and speed of electronics device is increased more and more. It makes the digital image technique progress constantly and it is applied widely.
数字图像压缩技术和数字图像加密技术应运而生，并且被广泛应用到多媒体、通讯、医学等等各个领域。
So the digital image compression technology and the digital image encryption technology have been born and applied in many field, such as multimedia, communication, medicine and so on.
该方案基于小波变换的场内图像压缩技术，采用小波变换、子带编码、自适应量化和熵编码来对图像数据进行压缩；
The project is based on wavelet transform image compression, and implements wavelet transform, subband coding, The quantization and entropy encoding processes provide data compression;
最后，通过把球面参数化算法和自适应采样算法扩展到平面，我们提出一种基于传统图像压缩技术的几何信号压缩算法。
At last, by generalizing our spherical parameterization algorithm and adaptive sampling scheme to the planar case, we can adopt image compression algorithms to compress geometric signals.
通过保形自适应重采样，可将三维网格模型转化为规则排列的二维几何图像，从而可借鉴成熟的图像压缩技术对其进行压缩。
The 3d mesh model is transformed into geometric image by adaptive shape-preserving resampling, and compressed using the image processing technique.
在文中着眼于JPEG2000静态图像压缩技术的研究，并研制出了一个基于DSP的JPEG2000静态图像压缩系统。
In the article, Study the JPEG2000 still image compression technology, and elaborated on the realizing process of DSP-based JPEG2000 compression module of the system.
高光谱数据作为一种三维图像，不同于二维静止图像，也不同于视频图像，一般的图像压缩技术难以达到高光谱压缩的性能要求。
As a kind of three-dimensional data sets, it is different from the 2d still image, and is also different from video series, so the general image compression method is not efficient for them.
由于数字图像具有数据量大的特点，出于对图像存储成本和图像通信的考虑，良好的图像压缩技术要能够实现高压缩率和高保真率。
The digital image has huge data information, so the algorithm which has high compression ratio and high fidelity rate is urgently needed, taking account of storage cost and communication.
在此同时图像数据库作为图像存储的一种形式已经得到了广泛的应用，不同领域的图像数据库应用对图像压缩技术有着不同的要求。
In the mean time, image database is widely used in many fields, which requires different image compression technologies according to special characteristics of images as well.
但是，由于在图像压缩、微处理器和无线数据带宽等技术上的进步，智能手机对于忙碌的医生来说很有可能成为像呼机一样必不可少的工具。
But thanks to advancements in image compression, microprocessors and wireless-data bandwidth, the smartphone may prove to be, like beepers, an essential tool for on-the-go doctors.
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