Results 41 to 50 of about 732,728 (308)

A FAST MORPHING-BASED INTERPOLATION FOR MEDICAL IMAGES: APPLICATION TO CONFORMAL RADIOTHERAPY

open access: yesImage Analysis and Stereology, 2011
A method is presented for fast interpolation between medical images. The method is intended for both slice and projective interpolation. It allows offline interpolation between neighboring slices in tomographic data.
Hussein Atoui   +2 more
doaj   +1 more source

Block-to-Block Distribution Matching

open access: yes, 2013
In this work, binary block-to-block distribution matching is considered. m independent and uniformly distributed bits are mapped to n output bits resembling a target product distribution. A rate R is called achieved by a sequence of encoder-decoder pairs, if for m,n to infinity, (1) m/n approaches R, (2) the informational divergence per bit of the ...
Böcherer, Georg, Amjad, Rana Ali
openaire   +2 more sources

Entanglement and chaos in warped conformal field theories [PDF]

open access: yes, 2019
Various aspects of warped conformal field theories (WCFTs) are studied including entanglement entropy on excited states, the Renyi entropy after a local quench, and out-of-time-order four-point functions.
Apolo, Luis   +4 more
core   +2 more sources

A novel disparity-assisted block matching-based approach for super-resolution of light field images [PDF]

open access: yes, 2018
Currently, available plenoptic imaging technology has limited resolution. That makes it challenging to use this technology in applications, where sharpness is essential, such as film industry.
Farag, Saber, Velisavljević, Vladan
core   +2 more sources

Integral Images for Block Matching [PDF]

open access: yesImage Processing On Line, 2014
The integral image representation is a remarkable idea that permits to evaluate the sum of image values over rectangular regions of the image with four operations, regardless of the size of the region. It was first proposed under the name of summed area table in the computer graphics community by Crow’84, in order to efficiently filter texture maps ...
Gabriele Facciolo   +2 more
openaire   +1 more source

Tight Bounds for the Price of Anarchy of Simultaneous First Price Auctions [PDF]

open access: yes, 2015
We study the Price of Anarchy of simultaneous first-price auctions for buyers with submodular and subadditive valuations. The current best upper bounds for the Bayesian Price of Anarchy of these auctions are e/(e-1) [Syrgkanis and Tardos 2013] and 2 ...
Christodoulou, George   +3 more
core   +2 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

On Recovery of Block Sparse Signals via Block Compressive Sampling Matching Pursuit

open access: yesIEEE Access, 2019
Compressive sampling matching pursuit (CoSaMP) is an efficient reconstruction algorithm for sparse signal. When the signal is block sparse, i.e., the non-zero elements are presented in clusters, some block sparse reconstruction algorithms have been ...
Xiaobo Zhang   +4 more
doaj   +1 more source

Sparse Representation of Astronomical Images [PDF]

open access: yes, 2012
Sparse representation of astronomical images is discussed. It is shown that a significant gain in sparsity is achieved when particular mixed dictionaries are used for approximating these types of images with greedy selection strategies.
Andrle   +22 more
core   +3 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

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