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运动估计是视频编码的关键技术,其最基本的原理是利用相邻帧间的时间
相关性,通过预测来减少时间冗余度。在实际编码中,为了节省码率,并不传
输每一帧的全部数据,而是利用运动估计求出每一帧与其预测参考帧之间的差
值。运动估计越准确,差值的分布越趋近与零,差值块的能量越小,经过变换、
量化和熵编码后所产生的码流的比特位率也越少。因此,运动估计搜索的准确
程度直接影响到了编码的压缩性能。
-Motion estimation is the key to video encodin
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利用图像差分,进行人体跟踪,并记录视频帧中目标的坐标-Differential use of image for the human body tracking, and record the video frame coordinates of the target
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This package contains m-files for the segmentation of a moving foreground from video with a static background
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程序以AVI文件为输入,输出运动补偿帧到另外一个AVI视频文件中。-Procedures to AVI file as input and output motion-compensated frame to another one AVI video file.
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Cosine Similarity function recives a video frame oject and calculates the consine sililarity function. please enjoy
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分布式视频编码程序,不包括传统帧编码部分,仅WZ编码部分,对信源进行了分类,小波变换,LDPC等-Distributed video coding process, not including traditional frame coding part, only part of WZ coding, the source for the classification, wavelet transform, LDPC, etc.
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帧差法实现视频图像的读取和运动目标的检测。-The video frame difference method of reading and moving target detection.
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the code is written to watermark the video
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实现对视频图像的游程编码和解码。过程包括:二维DCT变换、量化及游程编码。
一般来讲对于视频的I帧进行恢复,其信噪比可达到38DB以上。-Implementation of the video image encoding and decoding run-length. Process includes: two-dimensional DCT transform, quantization and run-length encoding. In general, I frame for
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基于模板匹配方法的眼睛追踪技术研究,彩色空间,视频帧图像处理-eye tracking technology based on emplate matching method, color space, video frame, image processing
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很好的基于帧间差分的目标跟踪检测算法matlab代码,里面含有测试视频!-Good target tracking based on frame difference detection algorithm matlab code, which contains a test video!
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利用帧差法进行视频运动目标的检测,可以粗略的检测出运动模块,可以结合其他方法进行更进一步的检测-Video frame-difference method using moving target detection, motion detection can be roughly modules can be combined with other methods for further testing
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将视频图像转换成图片序列的形式,获得帧图像。-The video image is converted into a sequence of pictures form, obtain image frame
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h.264帧内预测的matlab程序随着视频编码技术的迅速发展,性能更好的H.264标准越来越成熟,被广泛应用于许多多媒体应用领域。-H. 264 frame of matlab with video forecast coding technology rapid development, better performance of h. 264 standard more and more mature, are widely used in many multimedia applicat
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很好用的几个matlab多目标视频跟踪的程序,有粒子滤波的,帧差法的等等,可以直接仿真运行-Good use of several multi-target video tracking matlab procedures, particle filter, frame difference method, etc., can be directly run the simulation
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视频读取及目标背景提取,matlab平台下可以对视频取帧-Read and goals video background extraction, matlab platform can take video frame
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此文件可使matlab软件读取视频,并对视频进行单帧播放,还可以将视频单帧转换ipg格式输出-This file can be read the video, the matlab software and single frame of video playback, can also be a single frame video format conversion interpublic output
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avi2img.m 功能:将视频转换为单张图片
avi2mat.m 功能:将所有单帧图片转换为向量存储为mat文件
img2avi.m 功能:将所有单帧图片转换为视频
run_vedio.m 功能:将视频在Matlab中播放(Avi2img.m function: converts the video to a single picture
Avi2mat.m function: converts all single frame pictures into vect
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matlab视频转换成每帧图像,并输出到一个文件夹(The video is converted to each frame image and output to a folder.)
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一定条件下附加假彩色,从文件夹里读取raw文件并输出视频帧,可以对单帧图像进行处理(Read raw files from a folder and output video frames to process single-frame images)
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