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Description: In computer vision, one usually needs access to video frames as they are streamed in order to analyze or process them in some way. This code-pack shows how to obtain a single bitmap from a video stream using Microsoft Directshow.
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Size: 68541 |
Author: 王刚 |
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Description: 此代码为本人运用视频读取函数实现视频帧的读取，并可批量转为BMP等格式，另有运动目标静止背景的提取。内附说明文档，欢迎交流。-this code for the use of video I read function video frames to read and can volume to BMP format. another campaign goal from the background static. Enclosing documentation, welcomed the exchange.
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Size: 27384 |
Author: 同位素 |
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Description: 完整的程序，提供测试视频帧。根据视频帧中图像的形状进行运动估计-integrity of the procedures for testing video frames. According to Video Frame Image Motion Estimation shape
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Size: 2266529 |
Author: 乔香磊 |
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Description: This paper describes a vision based pedestrian detection and tracking system which is able to count people in very crowded situations like escalator entrances in underground stations. The proposed system uses motion to compute regions of interest and prediction of movements, extracts shape information from the video frames to detect individuals, and applies texture features to recognize people. A search strategy creates trajectories and new pedestrian hypotheses and then filters and combines those into accurate counting events. We show that counting accuracies up to 98 % can be achieved.
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Size: 2122036 |
Author: harleych |
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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: In computer vision, one usually needs access to video frames as they are streamed in order to analyze or process them in some way. This code-pack shows how to obtain a single bitmap from a video stream using Microsoft Directshow.
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Size: 68608 |
Author: 王刚 |
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Description: 此代码为本人运用视频读取函数实现视频帧的读取，并可批量转为BMP等格式，另有运动目标静止背景的提取。内附说明文档，欢迎交流。-this code for the use of video I read function video frames to read and can volume to BMP format. another campaign goal from the background static. Enclosing documentation, welcomed the exchange.
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Size: 26624 |
Author: 同位素 |
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Description: 完整的程序，提供测试视频帧。根据视频帧中图像的形状进行运动估计-integrity of the procedures for testing video frames. According to Video Frame Image Motion Estimation shape
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Size: 2266112 |
Author: 乔香磊 |
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Description: Video Reading Code for Matlab. This some C++ and mex code written as a Matlab wrapper around the ffmpeg video reading libraries. It should compile under Windows and Linux. (The Windows compilation requires mingw gcc. Extact installation instructions are included in a Readme.txt in the downloaded files.) Thus from within Matlab one can grab the RGB data from specified frames from a named video file. The code should be able to read all video clips that are readable by ffmpeg. Note that we are making this code freely available, however no promises are made as to its reliability or that the code will be supported. However, if bugs are found and easy to fix, then new releases will probably be made available. It should be noted also that ffmpeg is lgpl. -Video Reading Code for Matlab. This some Files and C code written as a wrapper around Matlab the ffmpeg video reading libraries. It should c ompile under Windows and Linux. (The Windows co mpilation requires mingw gcc. Extact installa tion instructions are included in a Readme.txt in the downloaded files.) Thus from within Matlab ab one can grab the RGB data from specified frame 's from a video file named. The code should be able to read all video clips that are readable by ffmp eg. Note that we are making this code freely avai Cheers, however no promises are made as to its reliabili ty or that the code will be supported. However, if bugs are found and easy to fix. then new releases will probably be made availab le. It should be noted also that ffmpeg is lgpl.
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Size: 5120 |
Author: 薛斌 |
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Description: This toolbox provides some functions for manipulating planar, closed splines to implement image or video segmentation by means of deformable (or active) contours. Contour topology is managed in a way that should allow changes similar to what can be observed with level sets (merging and splitting but no hole creation). Several objects can be segmented simultaneously in several frames. -This toolbox provides some functions for m anipulating planar. closed spline to implement image or video segm entation by means of deformable (or active) con tours. Contour topology is managed in a way that should allow changes similar to what can be obse rved with level sets (merging and splitting but no hole creation). Several objects can be segme nted simultaneously in several frames.
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Size: 162816 |
Author: zhuboy |
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Description: Video Preview and Frames Capture to Memory with SampleGrabber in Buffered Mode.
The article demonstrating video preview and frames capture to memory from external video devices using ISampleGrabber interface in buffered mode. C++, VC8.0, Windows, Vista, VS, MFC, GDI+, VS2005, Dev
Note: This is an unedited reader contribution
-Video Preview and Frames Capture to Memory with SampleGrabber in Buffered Mode.The article demonstrating video preview and frames capture to memory from external video devices using ISampleGrabber interface in buffered mode. C++, VC8.0, Windows, Vista, VS, MFC , GDI+, VS2005, Dev Note: This is an unedited reader contribution
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Size: 84992 |
Author: zeng |
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Description: 在VisualStudio2008下编写的视频采集程序，能够录像以及按照每秒15帧的速率将图像保存为BMP图像，基于VFW编写-VisualStudio2008 prepared in the video capture process, to video as well as the rate of 15 frames per second image saved as a BMP image, based on the VFW prepared
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Size: 48128 |
Author: xxm.nevaeh |
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Description: 提出视频帧序列中最重要帧，要这些帧频中插入水印。-Video frame sequence to the most important frames, it is necessary to insert a watermark of these frame rates.
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Size: 1024 |
Author: 侯发忠 |
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Description: 运用contourlet变换和小波变换对图像进行去噪处理,并将二者的去噪效果通过PSNR进行对比.文中包含去噪.m文件和求PSNR的.m文件.程序中注释详细,值得参考.通过测试的代码.-Use Contourlet transform and wavelet transform for image denoising treatment, and the denoising effect of the adoption of both PSNR comparison. Paper contains denoising. M documents and PSNR for the. M file. Program notes in detail, it is also useful. Through test code.
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Size: 171008 |
Author: chy |
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Description: 智能交通监视系统中基于边缘的运动目标提取算法
本文的算法是基于C++和OPEN CV实现的，要运行此程序首先要安装这两个软件
由于本文在采集图像时用到的视频图像较大 ，要100多兆，所以演示程序采用另一个视频，以观其效果
本程序中采用视频序列的前四十帧的奇数帧提取出背景边缘，用参数backframes来控制，backframes/2
即是采用的帧数。
cedge_thresh1和cedge_thresh2来控制做背景检测是用到的CANNY算子的两个阈值。
edgesum_thresh控制来背景边缘提取时去掉运动目标边缘的阈值。
-Intelligent traffic monitoring system based on the edge of the moving object extraction algorithm of this article is based on the algorithm C++ And OPEN CV achieved, it is necessary to run this program first to install these two software as a result of this paper used in the acquisition of images of the video image more large, to more than 100 megabytes, so the use of another video demo program to view the effect of the procedure used in video sequences of the first 40 odd-numbered frames to extract the background of the edge of backframes using parameters to control, backframes/2 that is used the frames. cedge_thresh1 and cedge_thresh2 to control the background detection is the Canny operator to use two thresholds. edgesum_thresh control to the background when the edge detection of moving targets to remove the edge threshold.
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Size: 1801216 |
Author: 陈忠厚 |
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Description: 基于OTSU算法的图像二值化分割，本程序是从视频中截取某一帧来实现。-OTSU algorithm based on binarization image segmentation, the process is from the video frames to achieve a certain interception.
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Size: 1024 |
Author: 王忠建 |
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Description: Simple bare bones DLL to enumerate video capture devices, and capture into a buffer on a seperate thread. A program can link to this DLL, begin video capture, and pull from the 30 frames / second buffer at any frequency and get full RGB frames to then save to disk, encode, etc.-Simple bare bones DLL to enumerate video capture devices, and capture into a buffer on a seperate thread. A program can link to this DLL, begin video capture, and pull from the 30 frames/second buffer at any frequency and get full RGB frames to then save to disk, encode, etc.
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Size: 470016 |
Author: Beachme |
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Description: Abstract—Based on the observation that low-frequency DCT
coefficients of an image are less affected by geometric processing,
we propose a new blind MPEG-2 video watermarking algorithm
robust to camcorder recording. Both the embedding and
extraction of the watermarks are done in the compressed domain.
The mean of the low-frequency DCT coefficients of the video is
temporally modulated according to the information bits. To
reduce complexity, we embed watermark in the prediction error
signals of the B-frames. Experimental results show that the
proposed scheme achieves high video quality and robustness to
camcorder recording, trans-coding, frame-rate conversion, and
geometric attacks on common test videos.
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Size: 136192 |
Author: lie |
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Description: The rapid presentation of frames of video information to give you the illusion of smooth motion or smooth change.
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Size: 900096 |
Author: raja |
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Description: convert image frames to video and extract frames of a video
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Size: 1024 |
Author: hagacom |
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