Manmade structures are important objects or targets for both civilian and defence applications. Isolation of manmade structures from background are very critical task due to noise, non-uniform intensity distribution a...
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Mathematical morphology (MM) which is based on the algebra of nonlinear operators, operands on object shape and in many respects supersedes the linear algebraic system of convolution. And it has become a powerful tool...
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ISBN:
(纸本)9781601322258
Mathematical morphology (MM) which is based on the algebra of nonlinear operators, operands on object shape and in many respects supersedes the linear algebraic system of convolution. And it has become a powerful tool in Digital imageprocessing (DIP). It allows processingimages to enhance fuzzy areas, segment objects, detect edges and analyze structures. Fuzzy systems are capable of representing diverse, non-exact, uncertain and inaccurate knowledge or information. They use qualifiers that are very close to human way of expressing knowledge, such as bright, medium dark, dark etc. They are based on fuzzy logic, which represents a powerful approach to decision making. Our approach is to apply mathematical morphological principals to some application of image analysis like Segmentation. And also to apply Fuzzy mathematical morphological principles and compare the results with basic mathematical morphology to show how the fuzzy sets specifically utilized in MM have turned into afunctional tool in DIP.
Prostate cancer is one of the types of cancer with the highest incidence in humans. In particular, prostate cancer is the main cause of death from cancer in men over 70 years of age. The automatic analysis of histolog...
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ISBN:
(纸本)9781479970612
Prostate cancer is one of the types of cancer with the highest incidence in humans. In particular, prostate cancer is the main cause of death from cancer in men over 70 years of age. The automatic analysis of histological images is nowadays a key factor for helping doctors in the diagnosis task. In this paper, we present granulometries as a novel image descriptor to identify abnormal patterns in the prostatic tissue. The morphological alteration suffered by the main structures of pathological glands are registered by the proposed descriptor and achieved in a feature vector. A committee of SvM classifiers is trained making use of the extracted information with the aim of discriminating between healthy and pathological tissue. The performance of the proposed image descriptor is validated in 45 images provided by the Hospital Clinico of valencia. Accuracy, sensitivity, specificity and AUC values higher than 0.95 +/- 0.02 demonstrate the effectiveness of the method.
Relates to a method of processing a digital image representing ribbon-shaped objects of nonuniform intensity contrasting with a background of smaller intensity, which includes an automatic segmentation phase. We have ...
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A vision-based pedestrian and car tracking system which is able to distinguish between car and pedestrian is possible using morphologicalprocessing and Blob analysis. videos are sequence of image frames. Here the alg...
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The aim of this work is to solve the image retrieval problems with modern methods of numerical linear algebra, which can be easily parallelized for distributed memory architectures like a cluster platform. Algorithm p...
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ISBN:
(纸本)9781905088423
The aim of this work is to solve the image retrieval problems with modern methods of numerical linear algebra, which can be easily parallelized for distributed memory architectures like a cluster platform. Algorithm presented in this paper is singular value decomposition (SvD). We show that SvD is directly linked with information retrieval through latent semantic indexing. However, our main concern is efficiency of computations of SvD. We present our parallel implementation of Householder bidiagonalization, which we consider the most computationally demanding step of singular value decomposition. We shall also compare our proposed algorithms with commonly used approaches on the experiments, and we shall emphasize their advatages in sence of usage of standard optimized linear algebra packages.
Our paper describes the design and implementation of a fingerprint thinning algorithm by means of morphologicalimageprocessing operations in order to improve the minutiae map involved. The final goal will aim to inc...
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ISBN:
(纸本)0780374363
Our paper describes the design and implementation of a fingerprint thinning algorithm by means of morphologicalimageprocessing operations in order to improve the minutiae map involved. The final goal will aim to incorporate the thinning algorithm proposed with the minutiae extraction algorithm for fingerprint identification systems, developed and presented at IEEE ICCST'01 [1].
An algorithm of edge detection based on mathematical morphology is discussed in the paper. Due to the characteristics of the basic morphology algorithm of imageprocessing, the common edge detection algorithms with tr...
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ISBN:
(纸本)9781467321969
An algorithm of edge detection based on mathematical morphology is discussed in the paper. Due to the characteristics of the basic morphology algorithm of imageprocessing, the common edge detection algorithms with traditional morphological edge detection algorithm are analyzed and compared, and the characteristics of each, as well as inadequateness are given here. Combined with the geometric algorithms, applied to binary gray scale image edge detection, based on the classic edge detection algorithms and soft filtering properties, the morphology of the soft edge detection algorithm and optimization algorithm is put forward for the edge detection and image de-noising processing.
There are many applications in which morphological operations play an important role. Morphology is a very useful mathematical tool or method to be used in imageprocessing. It has many application like edge detection...
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ISBN:
(纸本)9781479964994
There are many applications in which morphological operations play an important role. Morphology is a very useful mathematical tool or method to be used in imageprocessing. It has many application like edge detection and extraction form images for specific purpose, feature extraction based on the boundary information etc. It has many advantages over other imageprocessing tools like the complete outcome of the method lies in the selection of Structure Element( SE) and sequence of operations to be used. In face recognition also it has been used but only for binary images using the square shaped SE. Compensation for hair growth and cut have been assumed to be uniform which are not in real. There are also issues in imageprocessing like corruption, occlusion, different facial expressions, poses which are tried to be solved by this method. A proposed methodology for a biometric system is described in this work. In this work the morphological operations are used for feature extraction in face biometrics while solving the above mentioned issues. In the preprocessing basic morphological operations are performed using circular SE for denoising and smoothing image. Feature extraction is done using the existing method of sparse representation based classification. Feature matching is done using eigenfaces and after getting initial results images are treated with more morphological transformations iteratively for getting better results. Here motto is to increase the efficiency of the biometric system for better results and less computation time using morphological operations. The morphological operations used here are based on the maximum and minimum intensity values so that they can be used for grayscale images. The system is tested on a customized database made from Indian face database (IIT K) and Essex University database.
This paper deals with the extraction and characterization of foreground objects in video sequences. The algorithm first computes the mosaic image representing the background information and then extracts foreground ob...
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ISBN:
(纸本)0780370414
This paper deals with the extraction and characterization of foreground objects in video sequences. The algorithm first computes the mosaic image representing the background information and then extracts foreground objects. In this last step, the foreground objects are progressively extracted taking into account the reliability of the contour information. This extraction step is based on morphological tools. Finally, the foreground objects are characterized by their shape, texture and motion trajectory. Moreover, some information about the temporal evolution of non rigid objects is also extracted. This feature extraction algorithm is particularly suitable for the indexing, search and retrieval applications.
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