Based on wavelet transform,it presents the algorithm of digital watermarking used in the MPEG-2 video streams.
介绍了视频数字水印技术的特点和目前所采用的主要算法,针对MPEG-2视频基于小波变换的特性,提出了一种数字水印的设计方案,将伪随机序列嵌入到对亮度分量进行DWT分解后的低频和高频系数上,详述了水印的嵌入和检测过程,最后给出了结果分析。
By analysing statistical features of DC coefficient,computing intensity,row,and column histograms that are computed using DC coefficient of each 88 DCT encoded block in I frame,comparing the intensity,row,and column histograms of I frames,the transition point between two shots can be directly detected from raw MPEG video stream.
通过分析 MPEG视频流中 I帧的 8× 8DCT编码块的 DC系数的统计特征 ,用每个 88DCT编码块的 DC系数计算 I帧图象的亮度、行列直方图 ,比较 I帧之间直方图的差异 ,直接从原始的 MPEG视频流中侦测镜头切换
The optimized strategy and implementation of delay-limited retransmission for MPEG-4 video based on its RTP packet method;
一种基于MPEG-4视频RTP打包的限时重传优化策略与实现
Due to the high peak rate and frequent rate variations nature of MPEG-4 video, it is a challenge to transmit real-time variable bit rate video on CDMA systems.
该文研究了码分多址(CDMA)系统中反向链路上传输MPEG-4视频流的速率平滑算法。
With the rapid development of Internet and multimedia technology, the streaming transportation of MPEG-4 video has become a research hot spot.
随着Internet和多媒体技术的飞速发展，MPEG-4视频的流式传输成为网络应用的热点之一。
MPEG video source smoothing within GOP pattern for real time video applications;
实时性MPEG视频源的图片组内平滑算法
Research the Method of Implementation VCR Functionalities on Dual-bitstream MPEG Video Streaming;
如何有效地实现基于MPEG视频流的数字VCR(Digital Video Cassette Recording)功能是视频流服务的一个技术挑战,提出在服务器端建立双向视频流,采用具有最小花费的帧选择方案,在需要网络带宽和解码复杂度最小的情况下有效地实现数字VCR操作。
The Design and Implementation of MPEG-2 Video Coding System;
MPEG-2视频编码系统的设计与实现
FPGA Design of MPEG-2 Video Decoder
MPEG-2视频解码器的FPGA设计
FPGA implement of the in the MPEG-2 video decode
MPEG-2视频解码中IDCT的FPGA实现
Research of MPEG-2 Video Decoding on the Cell Multi-Processor Engine;
基于Cell多核处理器的MPEG-2视频解码技术的研究
The Study on MPEG-2 Video Stream Transcoding for Network PVR Manipulation;
面向网络PVR操作的MPEG-2视频码流转码研究
The Hardware Design and Implementation of MPEG-2 Video System;
MPEG-2视频编解码系统的硬件设计与实现
Watermarking Algorithm Based on Feature Points Detected in MPEG-2 Video
基于特征点检测的MPEG-2视频盲水印算法
Video Signal Validity Measurement Based on MPEG-2 Video Streams
一种基于MPEG-2视频流的有效性测量方法
An Image Quality Evaluation Method Based on MPEG-2 Video Streams
基于MPEG-2视频流的图像质量评价方法研究
DSP-Based Video Sampling System and MPEG-2 Video Compression Algorithms Research;
基于DSP平台的视频采集系统与MPEG-2视频压缩算法研究
MPEG-2 Video Transcoding Method in DCT Domain Based on Rate Control;
基于速率控制的MPEG-2视频频率域转码及其硬件实现
Video Transcoding from MPEG-2 to MPEG-4;
MPEG-2到MPEG-4视频转码
MPEG-2/MPEG-4 Video Stream Transcoding and Encoder Optimization;
MPEG-2/MPEG-4视频流转码及编码器优化
MPEG-2/MPEG-4 Video Stream Transcoder Based on TMS320C6416;
基于TMS320C6416的MPEG-2/MPEG-4视频流转码器
Research and Design of MPEG-2 to AVS Video Transcoder;
MPEG-2到AVS视频转码器的研究与设计
Study of Video Watermarking Technology Based on MPEG-2
基于MPEG-2的视频水印技术研究
The Study on MPEG-2 to H.264 Transcoding Algorithms
MPEG-2到H.264视频转码的算法研究
Implementation of MPEG-2 Audio and Video Edit Software
MPEG-2音视频编辑软件的实现方案