Description: 用小波多尺度分析进行基于医学图像形状特征的检索.-wavelet multiscale analysis based medical image retrieval features of the shape. Platform: |
Size: 1024 |
Author:江兰 |
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Description: 此程序计算图像的七个不变矩，提取出图像的形状特征，可用于图像检索。-This procedure of calculating the image of seven invariant moments, the shape of extracted image features, can be used for image retrieval. Platform: |
Size: 1024 |
Author:Owenli |
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Description: Recovering 3-D structure from motion in noisy 2-D images is a problem addressed by many vision system researchers. By consistently tracking feature points of interest across multiple images using a methodology first described by Lucas-Kanade, a 3-D shape of the scene can be reconstructed using these features points using the factorization method developed by Tomasi-Kanade. Platform: |
Size: 4657152 |
Author:Stephen Bishop |
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Description: 图象 处 理和模式识别中经常根据物体的形状来识别物
体或对物体进行分类。形状特征可以分为区域特征和边界特
征两大类，矩不变量是最基本的形状特征。Hu提出的矩不变
量是图象区域内部细节的描述，是一种区域特征。它是建立
在对一个区域内部灰度值的统计分析基础上的，需要目标区
域的所有象素参与运算-Image processing and pattern recognition are often based on the shape of objects to identify objects or to classify objects. Shape characteristics and regional characteristics can be divided into two major categories of border characteristics, moment invariants is the most basic features of the shape. Hu moment invariants proposed by the image region is described in detail, the characteristics of a region. It is based on a gray value of region on the basis of statistical analysis, the needs of the target region to participate in all-pixel operations Platform: |
Size: 653312 |
Author:martin |
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Description: 图像检索_基于MPEG-7形状特征的图像检索技术研究-_ Image Retrieval Based on MPEG-7 shape features of image retrieval research Platform: |
Size: 3093504 |
Author:ff |
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Description: 表面缺损检测对保证产品的使用性能、完整性和安全性具有重要意义 本文将表面
缺损类型总结为结构缺损、几何缺损、颜色缺损和纹理缺损等几类，并进行特征分析。在此基础上，从基于灰度特征、形态特征、色度特征和纹理特征等几方面对表面缺损的图像检测方法进行综-Surface defect detection products to ensure the use of performance, integrity and security will be of great significance to this article summed up the type of surface defect structure of defects, defect geometry, color and texture defects, such as several types of defects, and analysis. On this basis, from the gray-scale-based features, shape features, color features and texture features, such as several images of the surface defect detection method for fully mechanized Platform: |
Size: 391168 |
Author:wangzhongmei |
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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 Platform: |
Size: 10190848 |
Author:谢冉 |
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Description: A new approach for fingerprint verification, based on wavelets and pseudo Zernike moments (PZMs), is
discussed. PZMs are robust to noisy images, invariant to rotation and have a good image reconstruction
capability [4]. PZMs have been used for global analysis and so they are used to extract global features (the
shape of the fingerprint image). Wavelets are good at local analysis and so they help to extract local
features (minutiae) from a fingerprint. Therefore, this hybrid approach extracts most significant features
from the fingerprint images and achieve better verification rate. Different types of wavelets are used for the
study but the result shows that Symmlet orthonormal wavelet of order 8 gives best verification rate. Platform: |
Size: 386048 |
Author:samira |
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Description: this code in matlab for applying active shape models and active appearance models to detect the features of hand-this code in matlab for applying active shape models and active appearance models to detect the features of hand Platform: |
Size: 10113024 |
Author:gnagi |
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Description: CBIR is retrieval of images based on some query or example images. It is also called Query based image retrieval. Firstly, this report outlines a description of the primitive features of an image color and shape. These features are extracted and used as the basis for a similarity check between images. The final result is a MatLab built software application, with an image database, that utilized color and shape features of the images in the database as the basis of comparison and retrieval. Platform: |
Size: 304128 |
Author:keerthi |
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Description: 背景:快速的将心脏按其特征进行聚类可为后续统计分析和研究带来很大的便利.系统聚类法是将样品或变量按照其性质上的亲疏相似程度进行分类的一种多元统计方法.目的:提出用主成分一聚类分析的方法来描述心脏形态学形状并进行分类,对中国健康成年人的心脏X射线测量的各项指标进行综合评价.方法:搜集了36例健康成年人的胸片,并用MxLiteView软件手动测量了每幅胸片中代表心脏形态学形状常用的10个指标,用Matlab软件对测量指标进行主成分分析,然后对提取出的主成分进行聚类.结果与结论:主成分分析后提取出3个主成分变量,将36例样本用提取的主成分进行聚类,可将样本分为3类,分别代表了心脏的3类不同的心型.用该方法对心脏形态学形状进行快速分类,对心脏的统计和分类研究提供了一定的参考价值.-Background: The heart of their fast clustering features can bring great convenience for subsequent statistical analysis and research system clustering method is variable according to the sample or the nature of the closeness of the similarity of a multivariate statistical classification. methods Objective: proposed using principal component analysis of a clustering method to describe the shape of cardiac morphology and classification of the indicators Chinese healthy adult heart X-ray measurement of comprehensive evaluation methods: collected 36 cases of healthy adult person s chest and measuring MxLiteView software manual chest represents the heart of each piece of morphological shape commonly used 10 indicators to measure using Matlab software principal component analysis and principal components of the extracted clustering results aND CONCLUSION: after principal component analysis to extract the three main components of the variables, the 36 cases with samples extracted principal co Platform: |
Size: 666624 |
Author:王斌 |
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Search - shape features matlab