Results 11 to 20 of about 7,582 (288)
Noise Removal from Remote Sensed Images by NonLocal Means with OpenCL Algorithm
Remote Sensing, 2020 We introduce a multi-platform portable implementation of the NonLocal Means methodology aimed at noise removal from remotely sensed images. It is particularly suited for hyperspectral sensors for which real-time applications are not possible with only ...
Donatella Granata +3 more
doaj +2 more sources
Two-Step Multitemporal Nonlocal Means for Synthetic Aperture Radar Images
IEEE Transactions on Geoscience and Remote Sensing, 2014 International audienceThis paper presents a denoising approach for multitemporal synthetic aperture radar (SAR) images based on the concept of nonlocal means (NLM).
Charles-Alban Deledalle +1 more
exaly +2 more sources
Fast separable nonlocal means [PDF]
Journal of Electronic Imaging, 2016 We propose a simple and fast algorithm called PatchLift for computing distances between patches (contiguous block of samples) extracted from a given one-dimensional signal. PatchLift is based on the observation that the patch distances can be efficiently
Ghosh, Sanjay, Chaudhury, Kunal N
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Hashed nonlocal means for rapid image filtering
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2011 Denoising algorithms can alleviate the trade-off between noise-level and acquisition time that still exists for certain image types. Nonlocal means, a recently proposed technique, outperforms other methods in removing noise while retaining image ...
Salvado, Olivier +4 more
core +5 more sources
3D data denoising via Nonlocal Means filter by using parallel GPU strategies. [PDF]
Comput Math Methods Med, 2014 Nonlocal Means (NLM) algorithm is widely considered as a state-of-the-art denoising filter in many research fields. Its high computational complexity leads researchers to the development of parallel programming approaches and the use of massively ...
Cuomo S, De Michele P, Piccialli F.
europepmc +2 more sources
Efficient Descriptor-Based Segmentation of Parotid Glands With Nonlocal Means. [PDF]
IEEE Trans Biomed Eng, 2017 OBJECTIVE: We introduce descriptor-based segmentation that extends existing patch-based methods by combining intensities, features, and location information. Since it is unclear which image features are best suited for patch selection, we perform a broad
Wachinger C +3 more
europepmc +2 more sources
Measurement: Journal of the International Measurement Confederation, 2017 In this paper, a modified nonlocal means denoising (NL-means) algorithm is proposed for rolling element bearing fault diagnosis. Although, nonlocal means denoising is widely used in image processing, this algorithm is rarely used in 1-D signal processing.
Laha, S.K.
exaly +1 more source
Recovering thin structures via nonlocal-means regularization with application to depth from defocus
2007 9th International Symposium on Signal Processing and Its Applications, 2010 We propose a novel scheme to recover depth maps containing thin structures based on nonlocal-means filtering regularization. The scheme imposes a distributed smoothness constraint by relying on the assumption that pixels with similar colors are likely to
Favaro, Paolo, Paolo Favaro
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Nonlocal means-based speckle filtering for ultrasound images.
IEEE Transactions on Image Processing, 2009 International audienceIn image processing, restoration is expected to improve the qualitative inspection of the image and the performance of quantitative image analysis techniques.
Barillot, Christian +3 more
core +6 more sources
Nonlocal Symmetries and Generation of Solutions for Partial Differential Equations
Symmetry, Integrability and Geometry: Methods and Applications, 2007 We have constructed new formulae for generation of solutions for the nonlinear heat equation and for the Burgers equation that are based on linearizing nonlocal transformations and on nonlocal symmetries of linear equations. Found nonlocal symmetries and
Valentyn Tychynin +2 more
doaj +2 more sources