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Insulator is an important guarantee for the safe operation of electrified railway, but because of working conditions, the insulator would face long-term effects of wind, snow and rain. Insulator surface would easily accumulate filth and pollution flashover occurs, which often leads to blackouts and threatens the safe operation of the railway. Therefore, detection of the insulator working state is...
Document scanning is a daily office work. However, traditional devices like flatbed scanners are not easy to carry for mobile work. In this paper, we present a new document image scanning method using a mobile device. With a clip of continuous video capturing, our approach first extracts several key-frames. A mobile GPU based image stitching method is adopted to generate a high resolution document...
Development of intelligent fault detection and diagnosis technologies for spacecraft is one of important issues in the space engineering. In this paper, we present a new fault detection and diagnosis approach for spacecraft based on Principal Component Analysis (PCA) and Support Vector Machines (SVM). Firstly, PCA is used to extract features from input data and reduce the input data to low dimensional...
A highly accurate feature point matching method for stereo was proposed. It was proved that the homography between corresponding feature windows can be approximated by an affine model. Then the projective distortion of corresponding feature windows was estimated and rectified by a fast iterative scheme, at the same time, the location error of corresponding feature points arising at the detection stage...
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