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We propose a camera-based online signature verification system. Time-series images are obtained from a camera while a signature is being written. Then, online signature data are obtained by tracking the pen tip from these images with a particle filter (sequential Monte Carlo). The proposed system has an advantage that special devices such as an electronic tablet are not necessary. In this system,...
In this paper we propose an underline removal method specific to Japanese business document. Automated removal of underlines is important, because underline is the main cause of OCR misrecognition. The main feature of our method is to remove various types of underlines such as touched, inclined, and blurred lines by line template matching. Moreover, our method makes it possible to remove all possible...
Artifact-metric system using magnetic fibers can be applied for authentication system of stock certificate, bill, passport, plastic cards and other documents. The security of this system is guaranteed by its feature of difficulty in copy or reproduction. In this paper, the precision of authentication is calculated with false match rate and false non-match rate as a security system. It is found that...
This paper proposes a probabilistic search algorithm to boost the computational efficiency of face detection in video sequences. The algorithm sequentially predicts the probability distributions of face region parameters in the current video frame given a sequence of past frames, and automatically re initializes the prediction process at scene changes in the given video sequence. A Bayesian criterion...
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