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Superpixel segmentation has been of increasing importance in many computer vision applications recently. To handle the problem, most state-of-the-art algorithms either adopt a local color variance model or a local optimization algorithm. This paper develops a new approach, named differential evolutionary superpixels, which is able to optimize the global properties of segmentation by means of a global...
Recognition of multiple moving objects is a very important task for achieving user-cared knowledge to send to the base station in wireless video-based sensor networks. However, video based sensor nodes, which have constrained resources and produce huge amount of video streams continuously, bring a challenge to segment multiple moving objects from the video stream online. Traditional efficient clustering...
In general, algorithms of vector quantization codebook generation focus on solving two kinds of problem: 1. to determine the quantization regions and the codewords that minimize the distortion error. 2. to reduce the computational complexity of codewords search for building the codebook. The codebook generation problem can be formulated as a classification problem of dividing Np training vectors into...
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