The proceedings contain 198 papers. The topics discussed include: human recognition at a distance;tracking face poses toward meeting video analysis;framework for feature selection for cost shadow removal;dynamic objec...
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ISBN:
(纸本)9780819469502
The proceedings contain 198 papers. The topics discussed include: human recognition at a distance;tracking face poses toward meeting video analysis;framework for feature selection for cost shadow removal;dynamic object recognition and tracking of mobile robot by monocular vision;joint deconvolution of adaptive optics images from slope measurements of wavefront sensor;filtering strategy on offline invariant feature detecting based on information content and distribution constraints;feature-based nonrigid image registration using multi-class Hausdroff fractions;object region extraction based on graph cut and application in image retrieval;improved algorithm for image decomposition based on bidimensional EMD;algorithm for image fusion based on finite ridgelet transform;and point matching of two images under large different resolution.
The research on harbor recognition from remote sensing image is a very complicated problem due to complex environment and features. On this mentioned above, a method is presented to recognize the targets with various ...
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ISBN:
(纸本)9780819469502
The research on harbor recognition from remote sensing image is a very complicated problem due to complex environment and features. On this mentioned above, a method is presented to recognize the targets with various transformations on the basis of harbor targets extraction. This paper investigates the environmental characteristics of the harbor target. After preprocessing and segmenting real-time image, the inside region which reflects the nature of the harbor is extracted. From inside region the moment invariants can be calculated that it has the invariability with displacement, rotation and scale. According to the practical application, an experimental system based on harbor targets recognition is established. The result indicates that the harbor targets in remote sensing images can be recognized accurately using the method presented.
In this paper, a robust methodology on space target feature recognition is introduced. Aiming at area space target, its invariant features about geometry, affine transform and gray-level changing are extracted. Using ...
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ISBN:
(纸本)9780819469502
In this paper, a robust methodology on space target feature recognition is introduced. Aiming at area space target, its invariant features about geometry, affine transform and gray-level changing are extracted. Using the Backpropagation Fuzzy Neural Network (BPFNN) classifier, different models of target are classified and recognized. Aiming at point space target, firstly, local gray-level probability is computed and used to separate target and stars from background by setting threshold. Then by using multi-frame image accumulation, the contrast between target and stars is enhanced. Finally, target's accurate coordination has been achieved through centroid method with gray-level weighted. It has been improved that algorithm adopted in this study can reach approximately 93% accuracy of recognition for area target and 0.1 pixel of positioning accuracy for point target.
Watershed transform is a morphological image segmentation method which is widely used in medical image processing, video processing and many other fields. The ultimate goal of the transform is to identify the objects ...
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ISBN:
(纸本)9780819469502
Watershed transform is a morphological image segmentation method which is widely used in medical image processing, video processing and many other fields. The ultimate goal of the transform is to identify the objects of interest in the input image. However, the main problem of watershed transform is its sensitivity to intensity variations, resulting in over segmentation problem. The main goal of this work is to overcome the drawback of the traditional watershed algorithm. The proposed algorithm in this paper is to retain the most significant regions of the image when the image is under noisy conditions and the objects in the image have detailed textures.
The paper put forward a small target trace acquisition algorithm in serial star images of moving background, For the CCD serial star images, while the space target is moving, the background is still moving because of ...
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ISBN:
(纸本)9780819469502
The paper put forward a small target trace acquisition algorithm in serial star images of moving background, For the CCD serial star images, while the space target is moving, the background is still moving because of the CCD flat is moving, At the same time, because of dithering of CCD flat and some other reasons, the gray value of target is not invariable, so much as to disappear in the background noise, The algorithm can detect the discontinuous trace of small space target with high accuracy, Originally, the K-sigma cross projection method is used in background star and target area acquisition, Then, a group of N brightest stars in every image is used to estimate the moving vector of the whole background, Finally, a target trace acquisition method is put forward, The simulation experiment is done with two small targets in 16 frame serial star images, and results of trace acquisition show that the algorithm can detect traces of the two targets with high accuracy.
The TSSIM clutter metrics correlate amazingly well to both the experimental detection probabilities and the mean detection time. Based on the analysis of both probabilities of the correct detections and of the total (...
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ISBN:
(纸本)9780819469502
The TSSIM clutter metrics correlate amazingly well to both the experimental detection probabilities and the mean detection time. Based on the analysis of both probabilities of the correct detections and of the total (correct and false) number of detections made by human observers, a mathematical formula for predicting the probability of false alarms as a function of clutter metrics is presented in this paper. Comparing real experimental data with the predicted products reveal very good agreement, which is very helpful in understanding human behavior mechanisms regarding target detection tasks. It is concluded that the human observer behaves as fixed threshold signal processor /Non-CFAR.
In this paper a novel approach for multiple maneuvering targets tracking in infrared image sequence is proposed. For each target, the measurement weights and model weights, which are essential for data association and...
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ISBN:
(纸本)9780819469502
In this paper a novel approach for multiple maneuvering targets tracking in infrared image sequence is proposed. For each target, the measurement weights and model weights, which are essential for data association and multi-model based filtering, are determined jointly by quadratic programming. The proposed method avoids events enumeration process in traditional tracking algorithm such as JPDA and hill-climbing optimization process in classical EM-based algorithm. Simulation results show that compared with IMM+JPDA and recursive EM based algorithm, the proposed quadratic programming based algorithm can achieve good performance in both tracking accuracy and computational complexity.
In order to study the SAR image of the ocean wave and the wave modulation of the RCS (radar cross section), the numerical simulation has been done by using the velocity bunching (VB) model with various parameters. The...
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ISBN:
(纸本)9780819469502
In order to study the SAR image of the ocean wave and the wave modulation of the RCS (radar cross section), the numerical simulation has been done by using the velocity bunching (VB) model with various parameters. The SAR image has a migration in the azimuthal direction for the wave velocity and the process of the nonlinear imaging. The way is an available method of studying the ocean wave image by SAR.
COG (chip on glass) bonding is widely used in LCD industry. The alignment of marks in COG bonding needs high precision and reliability. It is of utmost importance to find two marks in COG fast and exactly. Its key tec...
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ISBN:
(纸本)9780819469502
COG (chip on glass) bonding is widely used in LCD industry. The alignment of marks in COG bonding needs high precision and reliability. It is of utmost importance to find two marks in COG fast and exactly. Its key technique is to use the advanced optical system to get the two-marked positions of chip on the glass, and to use the PLC procedure control to complete the automatic alignment. A series of experiments are performed to test the algorithms proposed, which show that the fast alignment of marks in COG bonding based on multi-resolution is both rational and highly effective.
An adaptive background model aiming at outdoor vehicle detection is presented in this paper. This model is an improved model of PICA (pixel intensity classification algorithm), it classifies pixels into K-distribution...
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ISBN:
(纸本)9780819469502
An adaptive background model aiming at outdoor vehicle detection is presented in this paper. This model is an improved model of PICA (pixel intensity classification algorithm), it classifies pixels into K-distributions by color similarity, and then a hypothesis that the background pixel color appears in image sequence with a high frequency is used to evaluate all the distributions to determine which presents the current background color. As experiments show, the model presented in this paper is a robust, adaptive and flexible model, which can deal with situations like camera motions, lighting changes and so on.
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