video compression

To implement credible transmit of the videophone sequence image, the key problem is how to design an efficient video compression algorithm.

要实现可视电话中序列图像的可靠传输，关键的问题是如何针对网络特点更有效地设计视频压缩算法。

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Theblock-based discrete cosine transform ( DCT ) is a fundamental component of manyinternational image and video compression standards.

基于离散余弦变换 ( DCT ) 的压缩技术是目前大多数国际图像视频压缩编码标准中采用的一种压缩技术.

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A New Search Algorithm for Motion Estimation in Low Bit Rate Video Compression

一种适用于低码率图象压缩的运动估计算法

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The main target of video compression code is to limit the distortion of code under the condition of restricted rate.

视频压缩编码的主要目标就是在比特率受限条件下，尽量使编码失真最小。

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Because temporal redundancy between the two frame in the video sequence, the video compression is possible by motion estimation.

由于视频序列在相邻的两帧图像之间存在着时间上的冗余，因此通过运动估计对视频进行压缩是可能的。

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Wavelet of High Quality and Low Cost Video Compression System

高质量、低成本的小波视频压缩系统

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At present, the video compression technologies mainly focus on three aspects of elimination of redundant data: spatial redundancy, temporal redundancy and statistics redundancy.

当前，视频压缩技术主要从三个方面消除数据中的冗余：空间冗余、时间冗余和统计冗余。

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Universal variable length coding ( UVLC ) is adopted in the newly proposed video compression standard H. 264.

新一代视频压缩标准H. 264中采用了统一变长编码 ( UVLC ).

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Two-dimensional ( 2-D) multirate systems and filter banks ( FBs) have been used widely in image compression, video compression, digital communication, computer vision and texture discrimination and classification, etc.

二维（Two-dimensional，2-D）多速率系统和滤波器组理论已被广泛应用于图像压缩、视频压缩、数字通信、计算机视觉和纹理识别与分类等领域。

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It has the more compression ratio than standard JPEG on base of the same video quality.

实验结果表明,在视觉效果相同的情况下,比JPEG标准具有较高的压缩比.

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With the development of the technology of computer multimedi 、 video compression coding and network communication, digital video surveillance system rises rapidly, it gradually replaced analog video surveillance transmitter mode which make video image segmentation matrix and video recorder as the core, the transmitter as supplement.

随着计算机多媒体技术、视频压缩编码技术，网络通讯技术的发展，数字视频监控系统迅速崛起，逐渐地取代了以视频矩阵图像分割器、录像机为核心，辅以其它传送器的模拟视频监控模式。

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Motion estimation is a very important algorithm in digital video camera, because it has a big effect on video compression and image stabilization.

运动估计算法是数码摄像机中一个非常重要的算法，因为它对视频编码压缩和视频稳像有着非常大的作用。

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For video compression distributed video coding is a new paradigm, which is based on the information theory established in 1970's by Slepian, Wolf and Wyner, Ziv.

对于视频压缩领域，分布式编码是一种新出现的应用机制，是基于20世纪70年代Slepian和Wolf以及Wyner和Ziv提出的信息理论而建立的。

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This means that the future development of video technology will focus on the development of the videos with high definition, high frame rate and high compression ratio.

未来视频技术的发展将侧重于高清晰度、高帧率和高压缩率的发展方向。基于此，新一代视频编码标准HEVC高效率视频编码标准应运而生。

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The matching error function based on subblock mean with the constant subblock division costs almost the same time to different matching images, which is very suitable for the real-time applications such as video compression.

子块划分的恒常性，也保证了基于子块均值的匹配误差函数对于不同的匹配图像所消耗的时间大致相同，非常适合于实时视频压缩等应用。

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This paper is intended to introduce some widely used international standards for video compression and focuses on the analysis of the operational principle and application of MPEG-2, an expert group of active images.

本文旨在介绍几种应用较为广泛的视频压缩国际标准，并重点分析了活动图象专家组MPEG2的工作原理及主要应用。

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And then, realize the MPEG-4 video compression system by the program of C language in VC environment, and use the standard testing sequence to validate well.

然后，在VC环境下用C语言编写程序实现了MPEG&4的视频压缩功能，采用测试序列验证无误。

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The Application of the Video Compression Code in the Cable TV Monitor System

视频压缩编码在有线电视监测系统中的应用

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An advantage of wavelet-based Video compression is that it offers more graceful image degradation at high compression ratios, and it also eliminates the block artifacts seen in DCT compression.

由小波变换编码实现的视频压缩在具备高压缩比的基础上，仍拥有较高的主观视觉效果，避免了由分块DCT变换引起的方块效应。

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In video communication, to transfer a video sequence over limited channel bandwidth, effective video compression is essential.

在视频通信中，为了在有限的信道带宽上传输视频，需要首先对原始视频信号进行有效的压缩。

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A repetition of the shot compressed to enhance the video compression ratio.

对有镜头冗余的视频进行压缩，以提高视频文件的压缩率。

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His research interests include video and audio processing and compression, multimedia telecommunications, etc.

研究领域是图象和声音处理、数字电视广播和宽带多媒体通信等。

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Jittering video not only affects the visual effect of watching, but also cause difficulties for post-processing, such as: target tracking, video compression.

抖动的视频不仅影响视觉观看，还会对后期处理造成困难，例如：目标跟踪、视频压缩等。

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Cosine transform is widely adopted in image, video compression and pattern recognition.

余弦变换广泛应用于图像和视频的压缩编码以及模式识别之中.

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Block-DCT-based video compression scheme has been used widely in digital video system.

摘要基于分块DCT的视频压缩方法在数字视频系统中得到了广泛的应用.

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The wireless video surveillance terminal is an embedded system made of central control module, video capture module, video compression module and CDMA IX transmission module.

无线视频监控终端是由中心控制模块、视频采集模块、视频压缩模块和CDMA1X传输模块构成的嵌入式系统。

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Then, the thesis designs the video interface module, SDRAM data storage module, FLASH programmer module, PCI communication module and system power module in panoramic camera image compression system in detail.

然后详细介绍了全景摄像机图像压缩系统视频接口模块，SDRAM数据存储模块，FLASH烧写模块，PCI通信模块及系统电源模块的设计方法。

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It includes: Video decoding ^ Video collection Video quantizer digital video compression and USB interface.

它包括: 视频图像解码、视频采集、量化以及数字视频图像的压缩和USB的接口.

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Vector Quantization ( VQ) is an important technology in the field of image compression, which is widely used in various applications such as speech coding, audio and video compression, and teleconferencing systems.

矢量量化（VQ）是近年来图像压缩研究中的重要技术，广泛应用于语音编码、音视频压缩和远程会议等系统中。

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First, distributed arithmetic ( DA) and a specific accumulator are used in the design of DCT to achieve a high throughput up to 8 pixels per clock, which is suited for high definition video compression application.

对于DCT的设计，采用分布式算法和专用累加器的硬件结构达到单周期8个象素的处理速度，适合高分辨率图像视频的实时处理。

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