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Frame rate up-conversion (FRUC) is a widely used technique to enhance the visual quality of low frame rate video presented on liquid crystal displays. One decisive factor for an effective FRUC algorithm is to obtain true motion vectors (MVs) for motion compensated interpolation. However, many current block-based motion estimation methods cannot always provide reliable MVs. In this paper, a new FRUC...
This paper presents a novel despeckling algorithm that can be used to enhance image quality in medical ultrasound images. Firstly, the log-transformed images are transformed by dual-tree complex wavelet transform (DTCWT). And then, we use a non-Gaussian statistical model with an adaptive smoothing parameter for ideal image signal in the transformed domain. According to Bayesian theory, the MAP estimator...
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