Bit-rate control is a key topic in the constant bit - rate video compression coding system.
码率控制是恒定码率视频压缩编码系统的一个关键研究课题。
This thesis analyzes stream media technology and video compression coding technology, then points out the key problems in networked multimedia application from many popular video transmission systems.
本文首先分析了网络多媒体应用中常用的流媒体技术，视频压缩编码技术。从当今流行的视频应用系统中指出视频应用的关键性问题。
Interframe prediction is key to video compression and can effectively eliminate the time redundancy of video coding, reduce coding rate and enhance coding efficiency.
帧间预测是视频压缩的关键技术之一，能有效消除视频编码中的时间冗余，降低编码码率，提高编码效率。
On the basis of analyzing video data acquisition from radar recording meter, an improved radar image compression algorithm, based on zero-tree coding wavelet decomposition, was proposed.
在对雷达记录仪采集的视频数据分析的基础上，提出了一种改进的基于零树编码的小波分解雷达图像压缩算法。
Video objects segmentation from video sequence is the key of implementing content-based compression coding method.
从视频序列中分割出视频对象是实现基于内容压缩编码方法的关键。
The Method based on the DCT transformation has been the center technology for most of the digital image and video coding standards, since it features on good de-correlation and energy compression.
基于分块dct变换的编码方法，由于具有良好的去相关性和能量压缩特性，已经成为现有大多数图像和视频编码标准的核心技术。
Compression Coding technology in the video communication is very sensitive to data distortion. Any distorted video datum will have an important influence on the quality of the videos.
视频通信中压缩编码技术对数据失真非常敏感，视频数据的任何失真，对视频质量都将产生重要的影响。
A series of video coding standards established by the international standardization organization make the application of video compression algorithms greatly successful.
由国际标准组织制定的一系列视频编解码标准使得视频压缩算法的应用获得巨大成功。
This coding algorithm can compress video by the method of combining inter-frame compression and intra-frame compression.
该编码算法采用帧内编码和帧间编码相结合的方法对序列图像进行压缩编码。
Some studies of the experimental data show that, H. 264 is much better than the other existing video coding standard in the SNR, compression efficiency and visual effects.
一些研究的实验数据表明，H . 264在信噪比，压缩效率和视觉效果方面，都远远好于现有的其它视频编码标准。
It adopts many advanced coding technologies and hence achieves outstanding compression performance and network friendliness. It can meet the requirements of various kinds of video applications.
该标准采用了先进的编码技术，具有卓越的压缩性能，并且易于网络传输，能够满足多种视频应用的需求。
Experimental results indicate that the proposed algorithm effectively saves the coding time and improves the compression ratio without reducing the video quality.
实验结果表明，在保证压缩质量不下降的前提下，该算法可以有效节约编码时间，同时压缩比也得以改善。
In order to improve compression ratio, the combination of lossy and lossless coding method is used in video coding systems.
为了提高压缩率，视频编码技术中一般会采用有损和无损压缩编码相结合的方式。
MPEG4 is a video coding technology with the characters of high compression ratio, low requirement for transmission bandwidth and high quality of image.
MPEG4是一种压缩率高、对传输带宽要求低、图像质量高的图象编码技术。
The efficient video coding technique aims to improve the video coding efficiency from two aspects of reducing the video coding computation complexity and improving the video compression ratio.
本发明旨在从降低视频编码计算复杂度和提高视频压缩比两个方面改善视频编码的效率。
So it is effective to apply U-transform, which may be used extensively in the application of video coding, to the field of image compression.
由此可见，应用u -正交变换对图像进行编码压缩是一类行之有效的方法，并有望在视频编码中得到应用。
Absrtact: for its fine performance, DCT transform is widely used in the compression and coding method of image and video data.
摘要：DCT变换以其优良特性被图像和视频的数据压缩编码所广泛采用。
The server is running, pressing from the start of PC cameras capture video, H. 263 coding and the use of compression.
服务端运行时，按下开始就可以从PC机的摄像头捕获视频，并且使用H . 263编码进行压缩。
Then it introduces simply the present development of coding algorithms about arbitrary shape video object, and indicates the algorithms have a high compression rate.
然后简介了任意形状可视对象编码算法的研究现状，并指出此算法是一种产生高压缩比的图像压缩算法。
MPEG-4 is one of the most influence multimedia data coding standard. The video object method makes it have higher compression ratio, flexible, interactive characteristic.
MPEG - 4标准是现在最重要最有影响力的多媒体数据压缩编码国际标准之一，基于对象的编码思想使其具有高压缩比、可扩展性、可交互性等许多优点。
Video compression interframe predictive coding one of the key technologies. in various compression standards has made extensive use of block-based motion estimation technology.
运动估计是视频压缩中帧间预测编码的关键技术之一，在各个压缩标准中都广泛使用了基于块的运动估计技术。
Coding of arbitrarily shaped image is one of the core techniques in MPEG 4 video compression. One approach to transform an arbitrarily shaped image region is addressed.
任意形状图象对象的变换编码方法是MPEG -4视频编码实现的核心技术之一。
Firstly, we provide an overview of MPEG-4 video compression encoding standard, chiefly introduce the basic coding principle and encoding scheme based on content.
本文首先对MPEG - 4编码标准原理进行了综述，并介绍了该标准的基本编码原理和基于内容的编码体系。
Currently, most infrared image compression systems adopt the scheme of existing mature image and video coding standards.
目前，在现有的红外图像压缩系统中，其压缩方案均采取已经成熟的图像压缩标准。
With huge data included in the digitized information, the development of the data compression techniques, especially the video coding and decoding technology, becames important.
随着信息数字化带来的数据量的急剧增加，数据压缩特别是视频信息编解码技术显得越来越重要。
This paper puts forward a modified layered video coding, which enhances the compression rate of the video coder and its ability to tolerate cell losses.
对一种通用的视频编码器进行了改进，提高了视频编码器的压缩比，并且改善了其抗信元丢失性能。
In this paper, motion estimation technology, as one of the significant issues to video compression encoding, is studied to increase coding speed.
本文针对影响视频压缩效率和速度瓶颈之一的“运动估计技术”展开研究。
In this paper, motion estimation technology, as one of the significant issues to video compression encoding, is studied to increase coding speed.
本文针对影响视频压缩效率和速度瓶颈之一的“运动估计技术”展开研究。
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