Search - boundary detection

Search - boundary detection - List

[Special Effects] 2223222 DL : 0: 我们给出一个模板和一幅图象。不难发现原图中左边暗，右边亮，中间存在着一条明显的边界。进行模板操作后的结果如下：。可以看出，第3、4列比其他列的灰度值高很多，人眼观察时，就能发现一条很明显的亮边，其它区域都很暗，这样就起到了边沿检测的作用。为什么会这样呢？仔细看看那个模板就明白了，它的意思是将右邻点的灰度值减左邻点的灰度值作为该点的灰度值。在灰度相近的区域内，这么做的结果使得该点的灰度值接近于0；而在边界附近，灰度值有明显的跳变，这么做的结果使得该点的灰度值很大，这样就出现了上面的结果。这种模板就是一种边沿检测器，它在数学上的涵义是一种基于梯度的滤波器，又称边沿算子，你没有必要知道梯度的确切涵义，只要有这个概念就可以了。梯度是有方向的，和边沿的方向总是正交(垂直)的，例如，对于上面那幅图象的转置图象，边是水平方向的，我们可以用梯度是垂直方向的模板检测它的边沿。例如，一个梯度为45度方向模板，可以检测出135度方向的边沿。-we give a template and an image. It is not difficult to find the maximum were left dark, right-liang, in the middle there is a clear boundary. After the template for the operation results are as follows :. Can be seen, three, four out other than the gray value is much higher, eye observation, we can obviously found a bright side. Other regions are dark, and this has played a role in the detection of 2500. Why is this the case? A closer look at the template on which to understand it. It means the right to the point o gray minus left point as a gray value of the point of gray values. In a similar gray area, do so as a result of the point of gray values close to 0; And near the border. gray values jump significantly changed, the results do make the point very gray value, and this appeared to
Update : 2025-04-04 Size : 9kb Publisher : 李涯
[Streaming Mpeg4] SBDcode DL : 0: 本源码是基于视频检索的镜头边界检测，能有效的检测渐变与突变。对于初涉该领域的人应该会有很大的帮助！-the source video retrieval is based on the shot boundary detection, the effective evolution and mutation detection. For a fledgling in the field should be of great help!
Update : 2025-04-04 Size : 413kb Publisher : 张小军
[Special Effects] hough_lw DL : 0: 利用霍夫变换来实现图像的边界检测，本代码实现圆和直线的检测-use Hough transform to image the boundary detection, the moon and the code to achieve a linear detection
Update : 2025-04-04 Size : 30kb Publisher : liuwei
[Books] BAMH DL : 0: 基于BAMH的视频镜头边界检测,镜头检测的经典算法-Shot on video shot boundary detection, shot detection algorithm classic
Update : 2025-04-04 Size : 157kb Publisher : 田波
[Books] HUE_shot DL : 0: 一种基于亮度帧差的自适应镜头边界检测算法-A AIFD Adaptive shot boundary detection algorithm
Update : 2025-04-04 Size : 210kb Publisher : 田波
[Other] scenechangenan DL : 0: 通过视频的Shot Boundary Detection与音频结合，进行场景变换的检测-Through video and audio Shot Boundary Detection combination for Scene Change Detection
Update : 2025-04-04 Size : 439kb Publisher : zhang
[Special Effects] boundary_tracing DL : 0: 可以用来实现对物体的边界检测追踪,包含UIR,H,C,PRJ文件-Can be used to achieve the object boundary detection tracking, including the UIR, H, C, PRJ file
Update : 2025-04-04 Size : 7kb Publisher : 陈英
[Graph program] cbvr DL : 0: 这是一种关于镜头边界检测的程序，是在基于信息熵的基础上完成的！-This is a shot boundary detection on the procedure is based on information entropy based on the completed!
Update : 2025-04-04 Size : 3.96mb Publisher : jiangwei
[Software Engineering] Video_scene_change_detection_using_neural_network. DL : 0: 利用ART2神经网络实现MPEG2视频中镜头边界的检测-ART2 neural network using MPEG2 video shot boundary detection
Update : 2025-04-04 Size : 732kb Publisher : zhangnan
[Special Effects] Real-Time_Shot_Change_Detection_Over_Online_MPEG-2 DL : 0: 基于mpeg2视频留的实时的镜头边界检测算法描述-Mpeg2 to stay based on the real-time video shot boundary detection algorithm described in
Update : 2025-04-04 Size : 883kb Publisher : zhangnan
[Special Effects] detect_boundary DL : 2: 图像边缘识别，侦测图像的边界并且得到边界点坐标-Edge identification, boundary detection and image coordinates of boundary points to be
Update : 2025-04-04 Size : 72kb Publisher : sient
[matlab] CircularHough100 DL : 0: Matlab程序编制的圆的边界检测，能够寻找圆枝晶和球心-Matlab programming circular boundary detection, can find a round and dendrite core
Update : 2025-04-04 Size : 7kb Publisher : 罗
[Special Effects] edgedetect DL : 0: 自己做的关于边缘检测与边界跟踪的matlab程序-Own on the edge of the boundary detection and tracking procedures matlab
Update : 2025-04-04 Size : 110kb Publisher : wang
[Graph Recognize] Image-ReflectBndry DL : 0: texture-boundary detection by using wide odd-symmetric mechanisms.
Update : 2025-04-04 Size : 1kb Publisher : yashar
[OpenCV] GrayscaleBoundary DL : 0: This a grayscale boundary detection using OpenCV-This is a grayscale boundary detection using OpenCV
Update : 2025-04-04 Size : 468kb Publisher : Afra
[matlab] codes DL : 0: i have attached code for boundary detection, face rcognition gradient calcul ation color spaces
Update : 2025-04-04 Size : 163kb Publisher : pooja
[Other] _video_shot_boundary_detection_using_frame-skippi DL : 0: video shot boundary detection
Update : 2025-04-04 Size : 1.56mb Publisher : john wayne
[Software Engineering] road-boundary-detection DL : 0: 基于红外图像的地面自主车导航的道路边界检测-Based on infrared images of ground autonomous vehicle navigation road boundary detection
Update : 2025-04-04 Size : 749kb Publisher : ning du
[matlab] boundary-detection DL : 0: Image boundary detection program in matlab
Update : 2025-04-04 Size : 8kb Publisher : Mushtaq
[Documents] A-SHOT-BOUNDARY-DETECTION-ALGORITHM-BASED-ON DL : 0: Shot boundary detection is always an important topic in digital video processing. It is the first important task of content-based video retrieval and indexing. In this paper, a new shot boundary detection algorithm is proposed, based on Particle Swarm Optimization Classifier. This method firstly takes the difference curves of U-component histograms as the characteristics of the differences between video frames, and then utilizes a Slide-Window Mean Filter to filter difference curves and a KNN Classifier applying PSO to detect and classify the shot transitions. This method has three advantages that it is more sensitive to gradual transitions each curve graphic with remarkable characteristics corresponds to a shot transition Cuts and Gradual transitions could be detected in a same step. As experiments shown, the performance of this method is superior to the traditional shot boundary detection methods, and this method can achieve high recall and precision rate.-Shot boundary detection is always an important topic in digital video processing. It is the first important task of content-based video retrieval and indexing. In this paper, a new shot boundary detection algorithm is proposed, based on Particle Swarm Optimization Classifier. This method firstly takes the difference curves of U-component histograms as the characteristics of the differences between video frames, and then utilizes a Slide-Window Mean Filter to filter difference curves and a KNN Classifier applying PSO to detect and classify the shot transitions. This method has three advantages that it is more sensitive to gradual transitions each curve graphic with remarkable characteristics corresponds to a shot transition Cuts and Gradual transitions could be detected in a same step. As experiments shown, the performance of this method is superior to the traditional shot boundary detection methods, and this method can achieve high recall and precision rate.
Update : 2025-04-04 Size : 386kb Publisher : saeed

« 12 3 4 5 6 7 8 9 10 »