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This paper describes a method of image sharpness evaluation while taking into account the photographer's aesthetic intention. The main idea is utilizing a visual importance map that estimates the weight of each pixel to guild evaluating image sharpness. The visual importance map is computed automatically with a saliency detection algorithm based on global color contrast. Our technique allows to treat...
In this paper, we propose a robust obstacle detection approach by leveraging Weighted Hough Transform (WHT) in combination with temporal information correlation from the stereo video sequences. First, to model the road surface or obstacles in the video, rather than using simple threshold from binarized frame sequence, we propose to adopt WHT to extract the linear relation from the v-disparity map...
The Texas Instrument DSP (TMS320DM642 EVM) is used as the implementation platform in our robot catcher system with two CCDs as source of the stereo vision. The system will separate the thrown-in target from the paired images and then calculate the centroid coordinates of each target image, thereby determining the space location of the object. The Lagrange interpolation formula and the linear function...
Large-scale video surveillance systems typically deploy many video cameras over a wide area and display video streams on separate screens. Operators of this kind of systems have difficulties perceiving the whole pictures of intermixed views and are prone to losing track of targets. This paper presents a surveillance system which integrates videos from multiple cameras into a single comprehensive view...
Face diagnosis is an important part of the inspection in traditional Chinese medicine (TCM). TCM considers the body of human as an inseparable whole and the face is just like a mirror that reflects physiological function and pathological changes. Eye is the window of heart, and it??s the most important part on face for TCM doctors to diagnose patient. In this paper, we present several methods on quantifying...
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