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Description: 在源码实现的研究过程中将采取基于水平集方法的几何活动轮廓模型如测地轮廓模型或Mumford-shah模型与其他的分割方法的结合。针对具体的图像可以将一些先验知识（灰度和形状信息）加入到算法中-source realized in the course of the study will be taken based on the level set method of the geometric active contour models such as the geodesic contours Die Mumford- or-shah model and the other a combination of segmentation. Specific image may be some a priori knowledge (gray and shape information) to join algorithm
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Author: 牛牛 |
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Description: 用三角网法绘制等值线，是在三角形的三条边上用线性内插方法寻找等值点，这种方法的机理是将每个三角形看作是空间的一个平面，这就要求在每个三角形的三个顶点内的地貌形态无明显的变化，故此希望将其中最靠近的三个点构成三角形，以符合上述机理，使插补的等值点精度较高，更好的反映地貌的实际形态。符合这些条件的三角形称之为“最佳三角形”-With a triangular mesh contour map is the edge of the triangle with the three methods of linear interpolation to find the equivalent point, the mechanism of this method is to each triangle as a space plane, which requires each triangles three vertices with no obvious patterns of geomorphic change, it wished to put the three points closest to constitute a triangle in order to comply with the above mechanism, so that the equivalent interpolation points higher accuracy, better reflects the landscape the actual shape. Applying these criteria to the triangle known as the
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Author: 赵强 |
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Description: 图像处理的关于Snakes : Active Contour Models算法和水平集以及GVF的几篇文章，文章列表为：
[1]Snakes Active Contour Models.pdf
[2]Multiscale Active Contours.pdf
[3]Snakes, shapes, and gradient vector flow.pdf
[4]Motion of level sets by mean curvature I.pdf
[5]Spectral Stability of Local Deformations Spectral Stability of Local Deformations.pdf
[6]An active contour model for object tracking using the previous contour.pdf
[7]Volumetric Segmentation of Brain Images Using Parallel Genetic AlgorithmsI.pdf
[8]Segmentation in echocardiographic sequences using shape-based snake model.pdf
[9]Active Contours Without Edges.pdf
学习图像处理的人必看的几篇文章-Image Processing on the Snakes: Active Contour Models and Level Set algorithm, as well as several articles of the GVF, the list for the article: [1] Snakes Active Contour Models.pdf [2] Multiscale Active Contours.pdf [3] Snakes, shapes, and gradient vector flow.pdf [4] Motion of level sets by mean curvature I.pdf [5] Spectral Stability of Local Deformations Spectral Stability of Local Deformations.pdf [6] An active contour model for object tracking using the previous contour.pdf [7 ] Volumetric Segmentation of Brain Images Using Parallel Genetic AlgorithmsI.pdf [8] Segmentation in echocardiographic sequences using shape-based snake model.pdf [9] Active Contours Without Edges.pdf learning image processing articles were a must-see
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Author: 张阳 |
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Description: 本文提出了有模型指导的三维人体运动跟踪框架，将一个多关节的圆台形状三维人体模型与多个视频图像中的外轮廓、边界、灰度和肤色特征进行匹配，使人体运动跟踪变成一个状态估计问题。并且，使用基于概率模型的粒子滤波算法来完成非线性、非高斯动态系统的状态估计。
-In this paper, the model has guided three-dimensional human motion tracking framework, will be more than one of the frustum of a cone shape of the joints of three-dimensional human body model with a number of video images of the outer contour, border, greyscale and color matching features, so that human motion tracking into a state estimation problem. In addition, the use of probabilistic model based particle filtering algorithm to complete the non-linear, non-Gaussian dynamic system state estimation.
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Author: 阳关 |
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Description: 图像分割是由图像处理到图像分析的关键步骤，涉及到计算机视觉技术的复杂问题。在医学图像方面，许多应用大都依赖于对图像中目标轮廓的准确提取。基于微分算子检测的方法几乎都对噪声较为敏感且不能保证得到连续的边缘，无法用于辨识和分析目标。由Kass提出的基于主动轮廓线的Snake模型[1]，用一个具有一定弹性的封闭曲线，在曲线自身形状约束力和由图像数据计算而来的外部力的共同作用下演化，来逼近目标边界，完成对图像的分割。
GVF snake VC++做的-Image segmentation by image processing to image analysis of the key steps involved in computer vision technology to complex problems. In medical images, many applications largely depends on the target images extracted contour accuracy. Based on the differential operator method of detecting almost all more sensitive to noise and can not guarantee that they will get straight edge, can not be used for target identification and analysis. Kass raised by the active contour based on the Snake model [1], with a certain flexibility of the closed curve in the curve shape their own binding and calculated by the image data from the external force under the joint effect of the evolution of the boundary to approximate the target , completion of the image segmentation. GVF snake VC++ Make the
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Author: happynp |
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Description: 经典的snake模型轮廓演变部分的程序，采用差值运算，是形状演变更为方便-Classic snake model for contour evolution of part of the procedure for computing the difference is the shape of the evolution of more convenient
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Author: qdd |
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Description: 轮廓提取与跟踪
在基于形状的图像检索中有重要的应用-Contour extraction and tracking in shape-based image retrieval has important applications in
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Author: king |
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Description: 基于MPEG_7形状轮廓描述编码的数字水印算法 提出了一种基于MPEG-7轮廓描述编码
的视频水印算法.在该算法中,原始视频数据被分割成等帧数的视频组,利用MPEG-7的轮廓
编码计算每个视频帧的主要物体轮廓坐标点集合
-Contour shape description based on coding MPEG_7 Digital Watermarking Algorithm Based on MPEG-7 contour description coding of video watermarking algorithm. In this algorithm, the original video data, such as being cut into frames of the video group, using the outline of MPEG-7 encoding of each video frame the outline of the main objects set coordinates
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Author: 杨康 |
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Description: vc6.0下，检测图像形状的轮廓的面积和周长，图像格式必须为BMP格式。-vc6.0, the detection of the contour shape image of the area and perimeter, BMP image format must be the format.
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Size: 162816 |
Author: 刘祺 |
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Description: Active contour models, deformable surface models,
edge detection, gradient vector flow, image segmentation,
shape representation and recovery, snakes.-Active contour models, deformable surface models, edge detection, gradient vector flow, image segmentation, shape representation and recovery, snakes.
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Author: 李尊 |
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Description: This paper proposes a new method of extracting and tracking
a nonrigid object moving while allowing camera movement. For object
extraction we first detect an object using watershed segmentation
technique and then extract its contour points by approximating the
boundary using the idea of feature point weighting. For object tracking
we take the contour to estimate its motion in the next frame by the
maximum likelihood method. The position of the object is estimated using
a probabilistic Hausdorff measurement while the shape variation is
modelled using a modified active contour model. The proposed method is
highly tolerant to occlusion. Because the tracking result is stable unless
an object is fully occluded during tracking, the proposed method can be
applied to various applications.
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Author: sacoura31 |
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Description: 使用粒子滤波进行手部跟踪,动态转移矩阵训练得到.使用B样条曲线对手外部轮廓拟合,并引入形状空间限制维数.详细理论参考active contour由michael isard和Andrew blake完成.-The use of particle filter for hand tracking, the dynamic transfer matrix has been training. The use of B-spline curve fitting against an external contour, and the introduction of restrictions on the shape of the space dimension. Detailed theoretical reference michael isard by the active contour and the completion of Andrew blake.
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Author: Rongbin |
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Description: 关于等高线特征描述与提取的几篇好文章，主要利用了等高线的形状与纹理特征。-There are several articles about the discription and extraction of contour feature, which mainly discuss shape feature and texture feature.
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Author: 蓝天 |
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Description: 将形状作为具辨别力特征的主动轮廓模型应用-As a discerning the shape characteristics of active contour model application
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Author: 宁之林 |
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Description: ASM是由Cootes和泰勒推出的多分辨率方法的一个例子。
基本思想：
在ASM模型训练，训练从手工绘制的图像轮廓。发现的ASM模型在训练使用主成分分析（PCA），使该模型自动识别数据的主要变化是，如果可能的轮廓/好的对象的轮廓。还包含了ASM模型的协方差矩阵描述行垂直纹理口岸时，在正确的位置。
-Description This is an example of the basic Active Shape Model (ASM) as introduced by Cootes and Taylor, with multi-resolution approach.
Basic idea:
The ASM model is trained from manually drawn contours in training images. The ASM model finds the main variations in the training data using Principal Component Analysis (PCA), which enables the model to automatically recognize if a contour is a possible/good object contour. Also the ASM models contains covariance matrices describing the texture of the lines perpendicular to the control points when in the correct positions.
After creating the ASM model, an initial contour is deformed by finding the best texture match for the control points. This is an iterative process, in which the movement of the control points is limited by what the ASM model recognizes from the training data as a "normal" object contour.
Literature:
- Ginneken B. et al. "Active Shape Model Segmentation with Optimal Features", IEEE Transactions on Medical I
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Author: 谢冉 |
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Description: 国外课件：Active shape model 和 active contour model(snake)的matlab 原码，包括PDF格式的程序使用说明-Foreign courseware: Active shape model and active contour model (snake) in the matlab source, including the PDF format of the program instructions
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Author: Dark Rider |
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Description: Shape Context is a method to get an unique descriptor (feature vector) for every point of an object contour or surface.
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Author: Giang |
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Description: 图像形状提取:加入了神经网络识别，即提取出每幅图像的7阶矩特征后，送入神经网络进行识别-Image shape extraction: joined the neural network recognition, namely the extraction of each image in the7order moment characteristics, into the neural network identification
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Author: 丁汀 |
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Description: c#等值线生成程序，自动划分三角形网格，生成等值线、等值面，生成shape文件。-c# contour generating program, divided into triangular mesh automatically generate contours, isosurfaces, generate shape files.
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Author: 黎利兵 |
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Description: 图像的形状特征一般是在物体从图像中分割出来以后进行分析，形状特征描述与尺寸测量结合起来可以作为区分不同物体的依据。形状特征有两类表示方法，一类是边界特征，另一类是区域特征。图像的轮廓特征主要针对物体的外边界，而图像的区域特征则关系到整个形状区域。(The shape feature of an image is generally analyzed after the object is segmented from the image. The combination of shape feature description and dimensional measurement can be used as a basis for distinguishing different objects. There are two types of representation methods for shape features, one is boundary feature and the other is regional feature. The contour features of the image are primarily directed to the outer boundary of the object, while the regional features of the image are related to the entire shape region.)
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Author: 堕落方舟 |
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