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In order to reduce the risk of themoseeds hyperthemia clinical operation, an intuitive 3-D virtual patient needs to be reconstructed by the preoperative treatment planning system. The reconstruct results can supply the geometric physiological information of lesions and their surrounding tissues to form an optimal operation planning. In this study, the construction of 3D image intuitive environment...
To enhance the robustness of the vehicle detection system, an effective algorithm to identify the lighting conditions (daylight, night, lowlight (dawn, dusk)) based on histogram analysis is presented in this paper. The algorithm consists of two procedures: extracting and updating background image, and generating a lighting conditions classifier based on background image analysis. The algorithm is...
Due to the influence of both background interference and time-varying position, it is difficult to detect the moving object by computer vision in the complex background environment. This paper novelly builds a topological structure of typical features to detect object. The presented method can effectively detect the object which is scaling, rotating or in affine transformation, because of the using...
In this paper, a region-based moving object detection based on SSIM is concerned. SSIM is commonly used to measure the similarity of two images. This paper first analyzes the characteristics of SSIM value. Then the possibility of moving target detection using SSIM is analyzed. Finally the single Gaussian model based on the SSIM values of area is used to detect moving object, and compare the result...
In this work, a low memory and non-parametric based background subtraction algorithm (LMBS) is proposed by modeling the background model with a set of pixels. Instead of keeping a N-sized memory for each pixel model, a k-sized sample buffer is assigned to each pixel, and the background is modeled by 3×3×k neighborhood pixel values, which means the background model also contains space information....
Appearance-based person re-identification namely matching the same pedestrian across disjoint camera views, is an increasingly research spot. Researchers have proposed many complicated appearance descriptions. The role of basic visual features is seldom investigated, e.g. color, texture features, which are the basis of descriptions. By analyzing the characteristics of data environments, we can get...
Moving object images in video sequence are obtained by subtracting the background images with the current frame images, background extraction is an important process. Firstly, in this paper, the background and moving objects are extracted by using the improved Gaussian mixture background modeling. Then, the previous moving object and moving object of frame difference are effectively integrated into...
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