Before being compressed for transmission, the video stream is reformatted for the standard Japanese phone's 320-by-240 pixel screen.
视频流在压缩传输之前必须先格式化以适应日本手机320乘以240像素的标准屏。
The proposed method determines the motion activity and visual content change of the MPEG compressed video by using the luminance DCT DC value, macroblock type and motion vector.
本文算法利用亮度DCTDC值、宏块类型和运动向量来确定MPEG压缩视频中运动活动和视觉内容变化。
The network real-time video system is generally divided into 4big modules: capturing subsystem, compressed coding subsystem, trans- mission and controlling subsystem and output subsystem.
网络实时视频系统一般分为4大模块：采集子系统、编码压缩子系统、传输控制子系统和输出子系统。
Up to now, more and more video materials are stored and transmitted in the compression form, so it is practical to study the shot segmentation algorithms based on compressed video data.
从实用角度看，目前越来越多的动态视频资料都是以压缩形式存储和传输，所以，研究基于压缩视频流的算法更有实际意义。
The technology of video stream transcoding can be divided into two types: spatial domain(pixel-domain) and compressed domain(DCT-domain).
目前的视频流转码大致可以分为空域（像素域）转码和压缩域（DCT域）转码两种方法。
Moreover, video clipping and merging in MPEG compressed domain is implemented, which will largely exploit network-based applications of CBVAR.
进而，设计并实现了MPEG压缩视频裁剪与拼接功能，大大拓宽了视频检索在网络化方面的应用。
The prediction error can be decreased by incorporating high accuracy estimation and compensation, and the performance of compressed video can be improved.
高精度的匹配和补偿可以减少预测误差，提高视频图像的压缩效果。
This paper proposes the method to measure perceptual quality of compressed video which is based on human visual features, video contents and Fuzziness.
论文提出了基于视觉特性、视频内容和模糊学的压缩视频感觉质量计算方法。
Radar intelligence must be compressed before transmission and recording because the quantities of radar video signal are very large.
由于雷达视频信号数据量非常巨大，在对雷达情报的传输和记录时都要求进行相应的数据压缩。
In this paper, we present a fast algorithm that automatically detects caption text in MPEG compressed video.
提出了一种在MPEG压缩流上基于模型的快速标题文字探测算法。
The prediction error can be decreased, incorporating with high accuracy estimation and compensation, and the quality of compressed video can be improved.
高精度的匹配和补偿可以减少预测误差，提高压缩视频图像的质量。
Variable bit rate (VBR) compressed video exhibits significant rate variability, this burstiness complicates the network bandwidth reserve, admission control and etc.
预存储的变比特率（VBR）压缩的视频网上流式传输，提供实时视频服务。
The framework of video abstraction system in compressed domain is described, and main algorithms such as shot change detection, key-frame extraction and face detection are discussed.
给出了压缩域视频摘要系统的结构框架，并对其中的压缩域视频镜头变换检测、关键帧提取和压缩域人脸检测等主要算法进行了讨论。
Quantization Constrain Set (QCS) was widely used as priori information about the coding process in super-resolution reconstruction of compressed video.
在压缩视频的超分辨率重建中，量化约束集(QCS)作为编码模型的先验信息被广泛采用。
Aim To find out the base of component track record format of the digital video signal, the DV-record format and the compressed principle in a single frame.
目的了解数字视频信号的分量记录格式基础———DV记录格式及其帧内压缩原理。
A video transcoder is a device that converts video from one compressed format into another compressed format with different bitrate, resolution or syntax.
视频转码器可以满足上述需求，将一种压缩格式的视频码流转换为另一种压缩格式，如不同码率、不同分辨率、不同语法格式等。
With all three algorithms in effect, a 1-gb video file can be compressed to just 25 MB, without destroying any of the original video information.
三种算法都生效的情况下，一个1 -GB的视频文件可以被压缩到只有25MB，并且不会破坏任何原始视频信息。
However, the compressed video data is highly sensitivity to error code. A few error codes may induce much code be decoded invalidly.
而且压缩后的视频数据对码元错误非常敏感，少量码元的错误就可能导致大批码元无法正确解码。
However, the compressed video streams are vulnerable to the random noise in channel and generate errors, therefore, error concealment in video communication draw more and more attention.
但是，压缩后的视频码流极易受到信道随机噪声的干扰而产生错误，因此，视频通信中的错误隐藏技术越来越多的受到人们的关注。
A large number of video segmentation techniques have been developed in recent years. All of them can be classified (into) two groups, uncompressed field and compressed field.
近年来在视频分割领域出现了大量算法，这些算法总体上来说可以分为压缩域和非压缩域两类。
Aiming at the transfer and memorizer problem of mass image, this thesis designs a video system of compressed image based on DSP, and the system is used in traffic accidents of vehicle.
本文针对大量图像的传输和记录问题，设计了一种基于DSP的红外视频图像压缩系统，最终在汽车交通事故记录中得到应用。
Most of the current moving object segmentation algorithms in compressed domain were focused on the MPEGx video standards which were complexity intensive due to the use of complex mathematical models.
目前大部分压缩域视频对象的分割方法主要面向MPEG系列视频标准，且算法建模复杂。
Blocking artifacts are serious artifacts caused by block-based hybrid video coding, and significantly impair the subjective quality of the compressed video.
方块效应是基于块的混合视频编码算法产生的重要特征失真，严重影响了压缩后视频的主观质量。
Experiments result show that it can detect shot boundary quickly and exactly from compressed video.
实验表明，该方法能快速、准确地检测出视频中镜头的边缘。
Because the digitized video information is extremely huge, it will be compressed first to hold the minimum bandwidth, when video information transmit.
由于数字化后的视频信息非常庞大，在视频信息传输时首先会经过压缩，使得视频信息能够占有最小的带宽。
Based on the empirical envelope of a compressed video stream, a traffic description model was developed.
以视频码流流量的实测包络为基础，提出了一种流量描述模型。
When transmitting over the error-prone channels, the compressed video bit-steams are always vulnerable to all kinds of transmission errors.
视频压缩码流在传输过程中经常会遇到因各种原因引起的误码丢包等网络传输错误。
Radar digital video must be compressed before transmission and recording because the bandwidth of the video signal is too large.
由于雷达视频信号的带宽问题，在对其进行数字化传输和记录时，必须对雷达视频信号进行压缩。
The present invention also discloses a device for transmitting a compressed coding result of video, which includes: a buffer unit, a coding unit, a FIFO and a transmission control unit.
本发明还公开了一种传输视频压缩编码结果的装置，包括：缓存单元、编码单元、FIFO和传输控制单元。
The present invention also discloses a device for transmitting a compressed coding result of video, which includes: a buffer unit, a coding unit, a FIFO and a transmission control unit.
本发明还公开了一种传输视频压缩编码结果的装置，包括：缓存单元、编码单元、FIFO和传输控制单元。
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