The problem of face recognition is the important task in the security field, closed-circuit television (CCTV), artificial intelligence, and etc. One of the most effective approaches for pattern recognition is the use ...
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ISBN:
(数字)9781510620766
ISBN:
(纸本)9781510620766
The problem of face recognition is the important task in the security field, closed-circuit television (CCTV), artificial intelligence, and etc. One of the most effective approaches for pattern recognition is the use of artificialneuralnetworks. In this presentation, an algorithm using generative adversarial networks is developed for face recognition. The proposed method consists in the interaction of two neuralnetworks. The first neural network (generative network) generates face patterns, and the second network (discriminative network) rejects false face patterns. neural network of feed forward type (single-layer or multilayer perceptron) is used as generative network. The convolutional neural network is used as discriminative network for the purpose of pattern selection. A big database of normalized to brightness changes and standardized in scale artificialimages is created for the training of neuralnetworks. New facial images are synthesized from existing ones. Results obtained with the proposed algorithm using generative adversarial networks are presented and compared with common algorithms in terms of recognition and classification efficiency and speed of processing.
For a raw picture data set in either binary or gray-scaled digital form, we can first apply a pixel-quantization method to condense the picture to a much smaller file. Then we can use a math-graphic program such as Mi...
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ISBN:
(纸本)0819439835
For a raw picture data set in either binary or gray-scaled digital form, we can first apply a pixel-quantization method to condense the picture to a much smaller file. Then we can use a math-graphic program such as Microsoft Visual Basic to compute its center of mass (CM). From this CM, we can then construct a polar coordinate with M sectors and N rings. If we apply a normalized Magnitude Fourier Transform (MFT) to these M sectors and a normalized Hankel transform (HT) to these N rings, we will obtain two numerical series truncated at P and Q terms (e.g., P=Q=16). We can then construct a P+Q (or 32) dimension ANALOG vectors. This vector may be used as the pre-processed image vectors for feeding to any neural network (including the noniterative neuralnetworks we presented in the last 8 years) for training and learning.
Pulse Coupled neuralnetworks have been extended and modified to suit image segmentation applications. Previous research demonstrated the ability of a PCNN to ignore noisy variations in intensity and small spatial dis...
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ISBN:
(纸本)0819431184
Pulse Coupled neuralnetworks have been extended and modified to suit image segmentation applications. Previous research demonstrated the ability of a PCNN to ignore noisy variations in intensity and small spatial discontinuities in images that prove beneficial to image segmentation and image smoothing. This paper describes four research and development projects that relate to PCNN segmentation - three different digital imageprocessingapplications: and a CMOS integrated circuit implementation. The software for the diagnosis of Pulmonary Embolism from VQ lung scans uses PCNN in single burst mode for segmenting perfusion and ventilation images. The second project is attempting to detect ischemia by comparing 3-D SPECT (Single Photon Emission Computed Tomography) images of the heart obtained during stress and rest conditions, respectively. The third application is a space science project which deals with the study of global aurora images obtained from Ultraviolet imager (WT). The paper also describes the hardware implementation of PCNN algorithm as an electrooptical chip.
Extraction of lines and curves from images is one of the most important and fundamental tasks in machine inspection and computer vision in general. Among all the techniques in detecting lines and curves, the Hough Tra...
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ISBN:
(纸本)0819412023
Extraction of lines and curves from images is one of the most important and fundamental tasks in machine inspection and computer vision in general. Among all the techniques in detecting lines and curves, the Hough Transform (HT) method is unique in its ability to cope effectively with noise, gaps in outlines and even partial occlusion. In spite of this ability, the HT method is still not widely used in real time applications due to its computationally intensive requirements. One solution to this problem is to find an architecture for parallel processing. Recently, some approaches using parallel architectures have been reported. In real-time applications, the overall time required using these approaches is of the order of hundreds of milliseconds for a typical image of 256 X 256 resolution. Clearly, this speed is not good enough for most imageprocessing and machine vision tasks where line detection is just partial work. Since these architectures use commercial components and are not highly parallel, there is ample opportunity to improve the speed by using neural-like analog circuitry. An original method of higher order curve (HOC) detection using the Hough Transform is presented. This method is computationally very efficient and may yield to hardware implementation, thus making it possible to use the Hough Transform in fast real time applications.
A method for recognizing faces in relatively unconstrained environments, such as offices, is described. It can recognize faces occurring over an extended range of orientations and distances relative to the camera. As ...
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ISBN:
(纸本)081944815X
A method for recognizing faces in relatively unconstrained environments, such as offices, is described. It can recognize faces occurring over an extended range of orientations and distances relative to the camera. As the pattern recognition mechanism, a bank of small neuralnetworks of the multilayer perceptron type is used, where each perceptron has the task of recognizing only a single person's face. The perceptrons are trained with a set of nine face images representing the nine main facial orientations of the person to be identified, and a set face images from various other persons. The center of the neck is determined as the reference point for face position unification. Geometric normalization and reference point determination utilizes 3-D data point measurements obtained with a stereo camera. The system achieves a recognition rate of about 95%.
Multi-valued neurons (MVN) are the neuralprocessing elements with complex-valued weights and high functionality. It is possible to implement an arbitrary mapping described by partial-defined multiple-valued function ...
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ISBN:
(纸本)0819444081
Multi-valued neurons (MVN) are the neuralprocessing elements with complex-valued weights and high functionality. It is possible to implement an arbitrary mapping described by partial-defined multiple-valued function on the single MVN. The MVN-based neuralnetworks are applied to temporal classification of images of gene expression patterns, obtained by confocal scanning microscopy. The classification results confirmed the efficiency of this method for image recognition. It was shown that frequency domain of the representation of gene expression images is highly effective for their description.
Now a days, image recognition systems have several applications in enormous fields. The use of recognition systems (based on artificialneuralnetworks) as means of predicting medical diagnosis and recommending succes...
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ISBN:
(纸本)0769521088
Now a days, image recognition systems have several applications in enormous fields. The use of recognition systems (based on artificialneuralnetworks) as means of predicting medical diagnosis and recommending successful treatments has been a highly active research field in past five years. The purpose of this paper is to construct and train an artificialneural network to serve as a knowledge base that can accurately detect Pulmonary Tuberculosis. The first necessary step is to preprocess the different patients MMR's, which consisted of lesions of Tuberculosis and extract the features. Then the extracted features are converted into usable format (gray scale values) and given to neural net for training. It is based on back propagation algorithm.. Then the knowledge base is used to detect a sample collected from a new patient is given as target to recognize it.
This paper presents a novel technique for texture modeling and synthesis using the random neural network (RNM). This technique is based on learning the weights of a recurrent network directly from the texture image. T...
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ISBN:
(纸本)0819435805
This paper presents a novel technique for texture modeling and synthesis using the random neural network (RNM). This technique is based on learning the weights of a recurrent network directly from the texture image. The same trained recurrent network is then used to generate a synthetic texture that imitates the original one. The proposed texture learning technique is very efficient and its computation time is much smaller than that of approaches using Markov Random Fields. Texture generation is also very fast. We have tested our method with different synthetic and natural textures. The experimental results show that the RNN can efficiently model a large category of homogeneous microtextures. Statistical features extracted from the co-occurrence matrix of the original and the RNN based texture are used to evaluate the quality of fit of the RNN based approach.
Robust functionality of autonomous driving vehicles relies on their ability to detect obstables and various scenarios on the road. This can be only achieved by applying robust, fast and efficient AI-based signal proce...
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ISBN:
(数字)9781665495783
ISBN:
(纸本)9781665495783
Robust functionality of autonomous driving vehicles relies on their ability to detect obstables and various scenarios on the road. This can be only achieved by applying robust, fast and efficient AI-based signal processing to radar data. In this work we present an empirical investigation on the question, whether one can apply artificialneuralnetworks (ANNs) directly to frequency modulated continuous wave (FMCW) radar raw data. We show that preproceessing is not necessary if one has enough raw data. In our experiment we have data of 153 648 frames collected with a 60 GHz FMCW radar. We compare systematically the options of preprocessing the data using variational autoencoder, applying traditional preprocessing or omit data-preprocessing and apply ANN directly to raw data. We show that the last option results in 28% faster signal processing and highest accuracy. This is a promising result, since it enables edge computing and direct signal processing at the sensor level.
In this study, various machine learning and image analysis approaches such as Template Matching, HOG, SVM, Faster RCNN and YOLO are examined and compared for the symbol recognition problem in color maps. Some difficul...
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ISBN:
(纸本)9798350343557
In this study, various machine learning and image analysis approaches such as Template Matching, HOG, SVM, Faster RCNN and YOLO are examined and compared for the symbol recognition problem in color maps. Some difficulties were identified regarding the forms of the symbols, the complexity of the maps or the placement of the symbols on the map. Observations about the success or failure of the methods against the difficulties defined according to the experiments are presented. It has been observed that methods involving artificialneuralnetworks are more successful when performing symbol recognition on color maps. The highest result was obtained with Faster RCNN as 91%.
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