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12 March 2010 Compact rotation invariant descriptor for non-local means
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Abstract
Non-local means is a recently proposed denoising technique that better preserves image structures than other methods. However, the computational cost of non-local means is prohibitive, especially for large 3D images. Modifications have previously been proposed to reduce the cost, which result in image artefacts. This paper proposes a compact rotation invariant descriptor. Testing demonstrates improved denoising performance relative to optimized non-local means. Rotation invariant non-local means is an order of magnitude faster.
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Nicholas Dowson and Olivier Salvado "Compact rotation invariant descriptor for non-local means", Proc. SPIE 7623, Medical Imaging 2010: Image Processing, 76233C (12 March 2010); https://doi.org/10.1117/12.844088
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