Results 41 to 50 of about 53,992 (120)
On Y. Nievergelt's inversion formula for the Radon transform [PDF]
, 2009 We generalize Y. Nievergelt's inversion method for the Radon transform on lines in the 2-plane to the $k$-plane Radon transform of continuous and $L^p$ functions on $R^n$ for all $1\leq ...
Ournycheva, Elena, Rubin, Boris
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Ridgelet-based signature for natural image classification [PDF]
, 2005 This paper presents an approach to grouping natural scenes into (semantically) meaningful categories. The proposed approach exploits the statistics of natural scenes to define relevant image categories.
Le Borgne, Hervé, O'Connor, Noel E.
core
S2LET: A code to perform fast wavelet analysis on the sphere [PDF]
, 2012 We describe S2LET, a fast and robust implementation of the scale-discretised wavelet transform on the sphere. Wavelets are constructed through a tiling of the harmonic line and can be used to probe spatially localised, scale-depended features of signals ...
Leistedt, B. +3 more
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Novel CBIR System Based on Ripplet Transform Using Interactive Neuro-Fuzzy Technique [PDF]
, 2012 Content Based Image Retrieval (CBIR) system is an emerging research area in effective digital data management and retrieval paradigm. In this article, a novel CBIR system based on a new Multiscale Geometric Analysis (MGA)-tool, called Ripplet Transform ...
Chowdhury, Manish +2 more
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The curvelet transform for image denoising [PDF]
, 2002 We describe approximate digital implementations of two new mathematical transforms, namely, the ridgelet transform and the curvelet transform. Our implementations offer exact reconstruction, stability against perturbations, ease of implementation, and ...
Candès, Emmanuel J. +2 more
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2D and 3D Polar Plume Analysis from the Three Vantage Positions of STEREO/EUVI A, B, and SOHO/EIT [PDF]
, 2011 Polar plumes are seen as elongated objects starting at the solar polar regions. Here, we analyze these objects from a sequence of images taken simultaneously by the three spacecraft telescopes STEREO/EUVI A and B, and SOHO/EIT.
A. Gabriel +35 more
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A Blind Watermarking Using Orthogonal Finite Ridgelet Transform and Fuzzy C-Means
Journal of Software, 2010 Based on energy distribution analysis of orthogonal FRIT coefficients, a novel digital image watermark embedding and blind detecting algorithm in ridgelet domain is proposed in this paper. Since the ridgelet transform has directional sensitivity and anisotropy, the image is first partitioned into small pieces and the orthogonal FRIT is applied ...
Haiyan Yu 0001, Jiu-Lun Fan 0001
openaire +1 more source
, 2018 The recent advancement in computing technologies and resulting vision based applications have gives rise to a novel practice called telemedicine that requires patient diagnosis images or allied information to recommend or even perform diagnosis practices
Abdelrahim, Elsaid MD. +1 more
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Peak Transform for Efficient Image Representation and Coding [PDF]
, 2007 Digital Object Identifier 10.1109/TIP.2007.896599In this work, we introduce a nonlinear geometric transform, called peak transform (PT), for efficient image representation and coding.
He, Zhihai, 1973-
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