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Description: 提出了一种基于样本的分级检索
MPEG 视频的新方法:首先用I 帧的dct_dc_size 字段快速粗检,然后用断层摄影(tomography)法分析B 帧运动矢
量的时空分布特性以进一步缩小结果集,最后用DC 图像的精确匹配方法验证检索结果.试验结果表明,本方法
所需计算量较小,且可保证较高的检索精度.-presents a sample classification based on MPEG video retrieval of the new method : First of all I frame with the rapid field dct_dc_size rough Frederick, and then use tomography (tomography) Analysis of B pictures motion vector space-time distribution to further narrow the results set, and DC Images precision Matching test results retrieval. test results showed that the calculation method for small and can guarantee higher retrieval accuracy.
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Size: 501988 |
Author: 隼鼻梁 |
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Description: h264编码程序，能够实现视频压缩，分别压缩I帧p帧b帧-ENG coding procedures, video compression can be achieved, I frame compression p frame b frame
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Size: 99431 |
Author: 宋丛林 |
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Description: 银行的数字化监视监控系统是目前比较有市场及应用前景的开发项目，基于不同的MPEG采集卡与硬件外围设备开发的监视监控系统在国内外都有比较成型的技术。为了满足实时监视、实时采集压缩、随时回放、压缩数据流的传播等具体要求，在该系统中使用了一种用于网络视频/音频多点传输（视频广播）的视频数据采集卡，提供AVI（MPEG
I Frame压缩编码）采集、MPG采集。发送端广播MPEG流，接受端接受MPEG流并显示，网络传输采用WinSock 2
IP-Multicast。如果本机为发送端，网络上另外任何一台PC可以作为接收端。只要指定不同端口号，同时可以有多台PC机作为发送端，多台PC机作为接收端接收不同发送端的视频数据，也可在传送数据的同时在本机将数据存为MPEG文件。本文主要介绍在VB的环境下开发MPEG卡采集的Audio/Video数据播放的一些编程技巧。
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Size: 5286 |
Author: DFDF |
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Description: VC 从视频中选择一帧源码-video VC choose from one source
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Size: 3072 |
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Description: There are many approaches for motion detection in continuous video streams. All of them are based on comparison of current video frame with one from the previous frames or with something that we ll call background. In this article I ll try to describe some of the most common approaches. In describing the algorithms, I ll use an image processing library I ve described in my previous article. So, if you are common with it, it will only help. The demo applications support the following types of video sources: AVI files (using Video for Windows, interop library is included) updating JPEG from internet cameras MJPEG (motion JPEG) streams from different internet cameras MMS Stream - Microsoft Media Services local capture device (USB cameras or other capture devices).-There are many approaches for motion detection in continuous video streams. All of them are based on comparison of current video frame with one from the previous frames or with something that we ll call background. In this article I ll try to describe some of the most common approaches. In describing the algorithms, I ll use an image processing library I ve described in my previous article. So, if you are common with it, it will only help. The demo applications support the following types of video sources: AVI files (using Video for Windows, interop library is included) updating JPEG from internet cameras MJPEG (motion JPEG) streams from different internet cameras MMS Stream- Microsoft Media Services local capture device (USB cameras or other capture devices).
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Size: 116736 |
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Description: 提出了一种基于样本的分级检索
MPEG 视频的新方法:首先用I 帧的dct_dc_size 字段快速粗检,然后用断层摄影(tomography)法分析B 帧运动矢
量的时空分布特性以进一步缩小结果集,最后用DC 图像的精确匹配方法验证检索结果.试验结果表明,本方法
所需计算量较小,且可保证较高的检索精度.-presents a sample classification based on MPEG video retrieval of the new method : First of all I frame with the rapid field dct_dc_size rough Frederick, and then use tomography (tomography) Analysis of B pictures motion vector space-time distribution to further narrow the results set, and DC Images precision Matching test results retrieval. test results showed that the calculation method for small and can guarantee higher retrieval accuracy.
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Size: 501760 |
Author: 隼鼻梁 |
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Description: h264编码程序，能够实现视频压缩，分别压缩I帧p帧b帧-ENG coding procedures, video compression can be achieved, I frame compression p frame b frame
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Size: 99328 |
Author: 宋丛林 |
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Description: LibMPEG3 decodes several MPEG standards into uncompressed data suitable for editing and playback.
libmpeg3 currently decodes:
MPEG-2 video
MPEG-1 video
mp3 audio
mp2 audio
ac3 audio
MPEG-2 transport streams
MPEG-2 program streams
MPEG-1 program streams
IFO files
The video output can be in many different color models and frame sizes. The audio output can be in twos compliment or floating point. Frame accurate seeking, normally impossible in transport streams, is possible in libmpeg3 through the use of a table of contents. MPEG-2 video in YUV-422 colorspace is decodable. Digital TV broadcasts and DVD s can be edited using libmpeg3. Libmpeg3 takes what is normally a last mile distribution format and makes it editable.
Because of these and other features libmpeg3 is not intended for consumer applications but serves users who are interested in high quality editing and footage acquisition.
-several LibMPEG3 decodes MPEG standards i nto uncompressed data suitable for editing and playback. libmpeg3 currently decodes : MPEG-2 video in MPEG-1 video mp3 audio mp2 audio ac 3 audio MPEG-2 transport streams MPEG-2 progr m streams MPEG-1 program streams IFO files The v ideo output can be in many different color model 's and frame sizes. The audio output can be in twos compliment or floating point. Frame's accurate eeking. normally impossible in transport streams. in libmpeg3 is possible through the use of a tabl e of contents. MPEG-2 video in YUV-422 colorspa ce is decodable. Digital TV broadcasts and DVD's can be edited using libmpeg3. Libmpeg3 takes wh at is normally a last mile a distribution format nd makes it editable. Because of these and other libmpeg3 features is n
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Size: 712704 |
Author: robo |
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Description: 用vc++实现视频播放且获取图像，主线程和子线程-vc used to broadcast video images and access, the main thread and the thread-
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Size: 36864 |
Author: htt |
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Description: 再上传一个VC编的视频捕获的程序，界面清爽，可以单帧捕获，支持回调哦：）
第一次传的编译有问题，现在改好了，自己试了，没有问题~（麻烦站长把我第一次传的那个删除，谢谢）
-From a VC again made the video capture process, the interface clean, you can single-frame capture, to support the callback Oh:) First Chuan compiler has now improved, and their trial, and there is no problem ~ (trouble station the first time I mass delete that, thank you)
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Size: 35840 |
Author: 少凡 |
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Description: An easy video processing framework by grabbing frames as bitmaps using DirectShow
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Size: 355328 |
Author: 时天赋 |
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Description: visual c++的视频处理程序，可以逐帧读取AVI的视频文件，本人精心收藏的-visual c++ video processing, you can read frame-by-frame AVI video file, I carefully collections
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Size: 3247104 |
Author: 无梦 |
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Description: 对视频文件的帧进行分析,可以在此基础上进行抓取-Frame of video files to analyze on this basis can crawl
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Size: 218112 |
Author: 为伊买醉 |
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Description: 是一个自己编写的帧差法滤波程序，对于视频监控的背景建模有用。-I have written is a frame-difference method filtering procedures, the background for video surveillance useful modeling.
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Size: 1024 |
Author: 阿龙 |
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Description: This article tries to explain how to capture video and frames simultaneously. It is based on SampleGrabber program done by NETMaster and DirectX.Capture by Brian Low. The root of all of this was the amazing work of NETMaster, DirectShow.NET, SampleGrabber is just a sample application. I said amazing because I m close to understand completely the other projects or classes, but DirectShow.NET is far of my knowledge. -This article tries to explain how to capture video and frames simultaneously. It is based on SampleGrabber program done by NETMaster and DirectX.Capture by Brian Low. The root of all of this was the amazing work of NETMaster, DirectShow.NET, SampleGrabber is just a sample application. I said amazing because I m close to understand completely the other projects or classes, but DirectShow.NET is far of my knowledge.
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Size: 163840 |
Author: netyjj |
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Description: mpeg1视频中的I帧以及P帧编码算法在matlab中的模拟-mpeg1 video of I frames, as well as P-frame coding algorithm of the simulation in matlab
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Size: 3072 |
Author: 王银 |
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Description: 本次实验中对视频的I帧和P帧进行SNR可伸缩编码，可分级的级数为2。在I帧编码时，首先采用较大的量化矩阵进行量化，完成编码后的图像作为基本层-The experiments on the video frames and the I to P frame SNR scalable coding, can be graded series of 2. In the I-frame coding, the first to quantify the larger matrix to quantify the complete image is encoded as a basic layer
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Size: 3072 |
Author: 郝人 |
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Description: the code is written to watermark the video
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Size: 1024 |
Author: yeshoda |
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Description: 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 the video resume, the signal to noise ratio can reach more than 38DB.
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Size: 7168 |
Author: zrs |
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Description: 本程序从TS文件中提取I帧，I帧是视频中最为重要的一帧。-The procedure to extract the file from the TS I frame, I frame is the most important one video frame.
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Size: 385024 |
Author: haha |
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