منابع مشابه
Foveated self-similarity in nonlocal image filtering
Nonlocal image filters suppress noise and other distortions by searching for similar patches at different locations within the image, thus exploiting the self-similarity present in natural images. This similarity is typically assessed by a windowed distance of the patches pixels. Inspired by the human visual system, we introduce a patch foveation operator and measure patch similarity through a ...
متن کاملAnisotropic Foveated Self-Similarity
The foveated patch distance was shown to be a valuable feature for the assessment of nonlocal self-similarity in image filtering. The Foveated NL-means [1], which modifies the classical nonlocal means denoising filter (NL-means) [2] by computing the averaging weights based on the foveated patch distance instead of the conventional windowed patch distance, leads to a consistent improvement in th...
متن کاملNonlocal Similarity Image Filtering
We exploit the recurrence of structures at different locations, orientations and scales in an image to perform denoising. While previous methods based on “nonlocal filtering” identify corresponding patches only up to translations, we consider more general similarity transformations. Due to the additional computational burden, we break the problem down into two steps: First, we extract similarit...
متن کاملNonlocal Extensions of Similarity Methods
Similarity methods include the calculation and use of symmetries and conservation laws for a given partial differential equation (PDE). There exists a variety of software to calculate and use local symmetries and local conservation laws. However, it is often the case that a given PDE admits no useful local symmetry or local conservation law. It is shown how to construct systematically trees of ...
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Solutions to nonlocal equations with measurable coefficients are higher differentiable.
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ژورنال
عنوان ژورنال: International Journal of Computer Vision
سال: 2016
ISSN: 0920-5691,1573-1405
DOI: 10.1007/s11263-016-0898-1