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Multispectral images provide detailed data with information in both the spatial and spectral domains. Many clustering methods for multispectral images are based on a per-pixel classification, while uses only spectral information and ignores spatial information. In this work, a new clustering algorithm for multispectral images, based on both spectral and spatial information, is presented. This algorithm...
Shape, as one of the intrinsic features of weapons and the other military equipments, becomes the most important key factor of object recognition upon the different techniques of image formation, and the researches on techniques of image retrieval using contour, the important shape feature, have been a focus of attention in the domain of image engineering. The paper proposes a hierarchical image retrieval...
The purpose of image fusion is to combine information from several different source images to one image, which becomes reliable and much easier to be comprehended by people. Based on analyzing the relations of average and standard deviation of the two or more source images, a new strategy to improve image fusion effect and a new evaluation measure named RAS (the ratio between average and standard...
Pixel analysis is the primary step for other image processing relative analyses and how to more correctly and effectively distinguish pixels with different color and luminance in an image or a video stream are of the most important aspect in these field. This paper firstly provides a reasonable mapping operation to solve the problem caused by normalization operation in ART2 network. Then it proposes...
A new method for estimating 3D motion and structure of finger from 2D image sequence is proposed in this paper. This problem is challenging not only due to the correspondence problem but also the lack of depth cues in 2D image sequence. In this paper, affine motion is chosen as a suitable model for finger's motion. However, the motion model can also be extended and not necessarily be affine. Analysis...
Gait recognition has recently gained significant attention from researchers, especially computer vision researchers. Compared with other biometrics, gait has its unique advantages. Other biometrics technologies, such as face recognition, hand recognition, fingerprint recognition, can't work effectively when the person is far away. A simple and efficient gait recognition approach based on multi-resolution...
In this paper, a unique road contour extraction approach from high resolution satellite image is proposed, in which the road contour was extracted in two steps. Firstly, support vector machines (SVM) was employed merely to classify the image into two groups of categories: a road group and a non-road group. The identified road group images are the discrete and irregularly distributed sampled points,...
Unbalanced cases of multiwavelet being applied are discussed in this paper. We give the definition of balanced multi-scaling functions, which is a little difference from the definition of balance. Our definition is more convenient for calculating the balancer. Based on the discussion, an algorithm to calculate the prefilter with balancing is presented, with satisfied results in image decomposition
In order to give attention to the smooth and distortion of two image mosaic evaluation indices simultaneously, an optimal image mosaic method based on fuzzy integral is proposed in this paper. Aiming at the problems resulting from evaluating mosaic effect of single-factor evaluation index, the integrative evaluation method of the mosaic image is put forward based on synthesizing two independent single-factor...
In this paper, a real face image is regarded as the result of adding the so-called "standard" face image under an ideal illumination condition to the corresponding "error image", which reflects the imaging difference between the real illumination and the ideal illumination. Furthermore, based on two propositions, we infer that for two images of the same face the correlation between...
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