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Due to the various noises, the cloud image segmentation becomes a big challenge for atmosphere prediction. CNN is capable of learning discriminative features from complex data, but this may be quite time-consuming in pixel-level segmentation problems. In this paper we propose superpixel analysis based CNN (SP-CNN) for high efficient cloud image segmentation. SP-CNN employs image over-segmentation...
In some sport training application, it is necessary to search the key frames of training video for carefully analysis. In this paper, we take the key frame searching issue as a pose estimation problem. First, a set of various pose detectors are collected trough the twice SVM training process, each of which can be interpreted as a learned pose-specific HOG weight classifier. Then we run each linear...
With the development of Internet, Information security is becoming more and more important. Traditional cryptographic methods require the user to remember keys, it is not convenient. Biometrics based cryptographic key generation techniques generate cryptographic keys from biometrics directly. In this paper, we propose a biometric cryptosystem based on face biometrics. At encryption stage, a 128-dimensional...
There are many circular-shaped objects in our daily life. Most of these objects usually are deformed and move in both translational and rotational. Under prospective projection, a circle sometimes deformed into an ellipse. Some ellipse-based tracking algorithms can be used tracking the translation when the contour can be extracted automatically, but the rotation can not be extracted. In this paper,...
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