Description: 探讨了矩形件和任意形状图案的排样优化问题的遗传算法求解,提出了剩余矩形表示法和条形图表示法。对于矩形排样，剩余矩形表示法提高了板材利用率，更容易得到较优解。对于任意形状图案排样，条形图表示法直接利用位图排样，不对图案作任何限制（允许有孔洞），排样速度很快。该算法已应用于智能印花分色系统中。-on rectangular pieces of arbitrary shape and pattern layout of genetic optimization algorithm. the remaining rectangle said law and bar charts representation. For rectangular nesting, said the remaining rectangular plate method to improve the efficiency and easier to obtain a better solution. For arbitrary shape pictorial layout, bar charts, said the use of Direct bitmap nesting, pictorial not make any restrictions (to allow holes), the layout very quickly. The algorithm was applied dichroic Intelligent Printing System. Platform: |
Size: 346646 |
Author:wayllen |
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Description: 探讨了矩形件和任意形状图案的排样优化问题的遗传算法求解,提出了剩余矩形表示法和条形图表示法。对于矩形排样，剩余矩形表示法提高了板材利用率，更容易得到较优解。对于任意形状图案排样，条形图表示法直接利用位图排样，不对图案作任何限制（允许有孔洞），排样速度很快。该算法已应用于智能印花分色系统中。-on rectangular pieces of arbitrary shape and pattern layout of genetic optimization algorithm. the remaining rectangle said law and bar charts representation. For rectangular nesting, said the remaining rectangular plate method to improve the efficiency and easier to obtain a better solution. For arbitrary shape pictorial layout, bar charts, said the use of Direct bitmap nesting, pictorial not make any restrictions (to allow holes), the layout very quickly. The algorithm was applied dichroic Intelligent Printing System. Platform: |
Size: 346112 |
Author:wayllen |
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Description: 本文对形状匹配的方法进行了回顾。介绍了一些形状表示方法, 其中主要是形状简化
的方法。形状匹配的方法可以分为基于各种变换不变量的形状匹配方法和基于局部特征的形状匹配方法, 并根据这一分类介绍了很多有代表性的匹配方法。-In this paper, shape matching methods reviewed. Introduce a number of shape representation method, which is mainly the shape of simplification. Shape matching methods can be divided into a variety of transformation based on the shape invariant matching methods and based on local characteristics of shape matching methods, and in accordance with this classification introduce a lot of representative matching method. Platform: |
Size: 227328 |
Author:happyopencv |
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Description: Abstract—We describe a technique for image encoding in which local operators of many scales but identical shape serve as the basis functions. The representation differs from established techniques in that the code elements are localized in spatial frequency as well as in space.-Abstract—We describe a technique for image encoding in which local operators of many scales but identical shape serve as the basis functions. The representation differs from established techniques in that the code elements are localized in spatial frequency as well as in space. Platform: |
Size: 794624 |
Author:Tin Ho |
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Description: Tutorial: Algorithms for 2-Dimensional Object Recognition.
Representation of arbitrary shape for purposes of visual recognition is an unsolved problem. The task of representation is intimately constrained by the recognition process and one cannot be solved without some solution for the other. We have already done some work on the use of an associative neural network system for hierarchal pattern recognition of the sort that may be ultimately useful for generic object recognition. The conclusions from this work were that
@ Networks can be constructed which are robust to noisy and missing data.
@ The input to the network should preferably be signi_cance measures of homogenous features.
@ The required invariance properties must be explicit in the form of input representation.
We restrict here the recognition task to pre-segmented rigid bodies in the hope that a solution for this case will suggest ways of solving the more general case.
Platform: |
Size: 136192 |
Author:SS |
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Description: A very good paper that explain tracking facial feature under varying face pose and facial expression-This paper presents a hierarchical multi-state pose-dependent approach for facial feature detection and tracking under varying facial expression and face pose. For effective and efficient representation of feature points, a hybrid representation that integrates Gabor wavelets and gray-level profiles is proposed. To model the spatial relations among feature points, a hierarchical statistical face shape model is proposed to characterize both the global shape of human face and the local structural details of each facial component. Furthermore, multi-state local shape models are introduced to deal with shape variations of some facial components under different facial expressions. During detection and tracking, both facial component states and feature point positions, constrained by the hierarchical face shape model, are dynamically estimated using a switching hypothesized measurements (SHM) model. Experimental results demonstrate that the proposed method accurately and robustly tracks faci Platform: |
Size: 958464 |
Author:Ng Jack |
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Description: 在三维表面特征识别中，利用向量空间表示法来进行迷失的顶点坐标推断。-We present a technique that uses a
vector space representation of shape to infer missing vertex coordinates. Platform: |
Size: 3112960 |
Author:姚运迪 |
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Description: 运用仿生模式识别方法构建提取基本笔段的神经元序列覆盖手写体汉字图像, 分析笔段神经元间的拓扑性质, 将手写体汉字图像转化为具有容错表征方式的种汉字笔划类型组成的几何图形模仿人类汉字形码输人法统计具有冗余容错形状的笔划神经元类型、数量、位置、相合和相交点数量, 建立手写体汉字特征知识的数据结构表对一手写体汉字库中手写体汉字识别进行仿真实验。方法具有较强的“ 认知”手写体汉字的能力-Construction of the use of pattern recognition methods of extracting essential Strokes neurons handwritten Chinese character image sequence coverage, analysis Strokes topological properties of neurons, the handwritten Chinese character image into a fault-tolerant species Representation type of character strokes mimic the human form of geometry Statistics character image code input method has the shape of the strokes Redundancy neuron type, quantity, location, consistency, and the intersection points, and build knowledge of handwritten Chinese character feature table data structure of a handwritten Chinese character recognition of handwritten Chinese characters library of simulation experiments. The results proved that this method has a strong "cognitive" ability of handwritten Chinese characters. Platform: |
Size: 1232896 |
Author:郭事业 |
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Description: 本程序是一个较大型的程序。它包含了多数的3D变换，3维形体的表示，消除隐藏面，真实感图形等知识，是一个理想的学习程序 -This program is a larger program. It contains most of the 3D transform, 3-dimensional shape representation, elimination of hidden surfaces, realistic graphics and other knowledge, is an ideal learning program Platform: |
Size: 346112 |
Author:cs |
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Description: 利用欧氏距离计算三维模型的中轴，希望对大家有用！-Medial Axis (MA), also known as Centres of Maximal Disks, is a useful representation of a shape for image description and analysis.
MA can be computed on a distance transform, where each point is labelled to its distance to the background. Recent algorithms allow one to
compute Squared Euclidean Distance Transform (SEDT) in linear time in any dimension Platform: |
Size: 487424 |
Author:Niu Wenjie |
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Description: 结合Zernike矩的多尺度模板形状匹配，该算法对输入图像进行预处理后提取目标轮廓，经过归一化处理得到目标形
状的平移、尺度不变的链状表达，再通过小波变换进行多尺度分析；引入Zernike矩，利用Zernike矩的特性，实现小波表达的旋转不变性，解决了小波变换对起始点的依赖。-Shape matching based on multi-scale template with Zerinike moments，The object shape representation is converted to a dyadic wavelet
representation by wavelet transform. And then calculate the Zernike moments of wavelet representation
in different scales. With respect to property of rotation invariant of Zernike moments and in consideration of Zernike moments as feature vector to calculate the similarity between the object and
template image, the problem of dependency of starting point can be solved. Platform: |
Size: 1305600 |
Author:卢宠 |
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Description: 实现STP文件的输出功能，有一定的参考价值-The GEOMETRY sample program demonstrates how to construct a product
structure with an empty shape representation to hold some geometry. Platform: |
Size: 27648 |
Author:文鼎 |
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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.) Platform: |
Size: 122880 |
Author:堕落方舟 |
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Search - shape representation