Compact rotation invariant descriptor for non-local means

Nicholas Dowson; Olivier Salvado

doi:10.1117/12.844088

12 March 2010 Compact rotation invariant descriptor for non-local means

Nicholas Dowson, Olivier Salvado

Proceedings Volume 7623, Medical Imaging 2010: Image Processing; 76233C (2010) https://doi.org/10.1117/12.844088
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

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.

Citation Download Citation

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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