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In the paper is presented new method for lossless compression of biomedical signals, aimed at telemedicine applications and efficient data storage with content protection. The method is based on data compression algorithm developed by the authors. The high compression ratio obtained permits efficient data transfer via communication channels and enhances the distance monitoring of patients. The presented...
Tracking the position of stars or bright bodies in images from space represents a valuable source of information in different application domains. One of the simplest approaches used for this purpose in the literature is image thresholding, where all pixels above a certain intensity level are considered stars, and all other pixels are considered background. Two main problems have been identified in...
This paper presents a blind digital video watermarking scheme, which is especially robust to camcorder recording attacks and also to a variety of common video processing and geometric distortions. Using the fact that nearby frames of a video sequence are quite similar, the method embeds the watermark by temporal modulation of the frames. The watermark pattern used in modulation is generated based...
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