We present the overall goals of our research program on the application of high performance computing to remote sensing applications, specifically applications in land cover dynamics. this involves developing scalable...
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Describes how homomorphic deconvolution can be used to improve the radial resolution of in vitro and in vivo medical ultrasound images. Each of the recorded radiofrequency ultrasound beams used to form the image was c...
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ISBN:
(纸本)0818662751
Describes how homomorphic deconvolution can be used to improve the radial resolution of in vitro and in vivo medical ultrasound images. Each of the recorded radiofrequency ultrasound beams used to form the image was considered as a finite depth sequence of length N, and was weighted withthe same exponential depth sequence to create at least some minimum phase sequences. the mean value at each depth sample of the complex cepstrum sequences was computed, and the low depth portion of this mean sequence was taken as the complex cepstrum representation of the ultrasound pulse. It was transformed back to the Fourier frequency domain, and was used to compute the deconvolved echo depth sequence. the method gave substantial improvement in the radial resolution of B-scan images of a tissue mimicking phantom and of human tissues in vivo without significant amplification of the image noise.
A new algorithm for building irregular pyramids is presented. the algorithm is based on only two basic operations on graphs, contraction and removal of edges. By making use of the concept of dual graphs, the algorithm...
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the four main characteristic architectures for low-level image processing are the Square Processor Array (SPA) or mesh, the Linear Processor Array (LPA) or scanning array, the Pipeline (PL) and the Pyramid (PYR). In t...
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Neural networks have demonstrated superior performance in image classification tasks, however, acquiring sufficient labeled data for training them in real-world scenarios remains challenging. Few-shot learning (FSL) w...
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the covariance analysis of linear predictive coding has wide applications, especially in speech recognition and speech signal processing. Real-time applications demand very high processing speed for linear predictive ...
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Matching is an important pari of a model-based object recognition system. Matching is a difficult task, for a number of reasons. First, in a number of recognition systems matching is formulated as a combinatorial prob...
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the most distinctive trait in structural patternrecognition in graph domain is the ability to deal withthe organization and relations between the constituent entities of the pattern. Even if this can be convenient a...
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ISBN:
(纸本)9789897584756
the most distinctive trait in structural patternrecognition in graph domain is the ability to deal withthe organization and relations between the constituent entities of the pattern. Even if this can be convenient and/or necessary in many contexts, most of the state-of the art classification techniques can not be deployed directly in the graph domain without first embedding graph patterns towards a metric space. Granular computing is a powerful information processing paradigm that can be employed in order to drive the synthesis of automatic embedding spaces from structured domains. In this paper we investigate several classification techniques starting from Granular computing-based embedding procedures and provide a thorough overview in terms of model complexity, embedding space complexity and performances on several open-access datasets for graph classification. We witness that certain classification techniques perform poorly both from the point of view of complexity and learning performances as the case of non-linear SVM, suggesting that high dimensionality of the synthesized embedding space can negatively affect the effectiveness of these approaches. On the other hand, linear support vector machines, neuro-fuzzy networks and nearest neighbour classifiers have comparable performances in terms of accuracy, with second being the most competitive in terms of structural complexity and the latter being the most competitive in terms of embedding space dimensionality.
the biological signature recognition seems to be a solved problem, but when these systems are tested in the wild their accuracy collapsed abruptly. A case study of "Face recognitionthrough Camera (FRTC)" wa...
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Vehicle license plate detection and recognition it's a multi stage process, image pre- processing, license plate location, character location and recognition. We analyzed the multiple methodology used during this ...
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ISBN:
(纸本)9798350358568
Vehicle license plate detection and recognition it's a multi stage process, image pre- processing, license plate location, character location and recognition. We analyzed the multiple methodology used during this process, their features and results and implemented an algorithm that executes it. We applied a hybrid algorithm for plate location, a mathematical one for segmentation and a convolutional neural network for recognition, obtaining 98% in segmentation and recognition.
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