Results 41 to 50 of about 730,334 (197)

Pixel programming aspects of digital image

open access: yesLietuvos Matematikos Rinkinys, 2012
This article describes a realization of the mathematics and informatics subjects by using visual objective programming facilities. For solving advanced computer graphics tasks, seems comfortable to use new estimated mathematics programs and packages ...
Rima Birškytė
doaj   +1 more source

Acts of Time: Cohen and Benjamin on Mathematics and History [PDF]

open access: yes, 2017
This paper argues that the principle of continuity that underlies Benjamin’s understanding of what makes the reality of a thing thinkable, which in the Kantian context implies a process of “filling time” with an anticipatory structure oriented to the ...
Ng, Julia
core   +1 more source

Mathematical uniqueness of multimode ptychographic imaging

open access: yesOptics Express, 2023
By writing diffracted intensities as a set of linear equations with the self-correlation of sample’s Fourier components as unknown terms and the self-correlation of illumination’s Fourier components as coefficients, it was found that the number of unknown terms to be determined is much larger in partially coherent PIE than that in purely coherent PIE ...
Liqing Wu   +6 more
openaire   +2 more sources

An ISS Small-Gain Theorem for General Networks

open access: yes, 2005
We provide a generalized version of the nonlinear small-gain theorem for the case of more than two coupled input-to-state stable (ISS) systems. For this result the interconnection gains are described in a nonlinear gain matrix and the small-gain ...
A Berman   +24 more
core   +5 more sources

Brain Perfusion Analysis Method using Computed Tomography Images [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
In this paper, a multi-stage perfusion calculation pipeline is suggested. It contains preprocessing algorithms for brain tissue segmentation, input artery and output vein detection, a self-supervised neural network for CT image denoising, and ...
E. Khudiakova, A. Gavrilov, A. Krylov
doaj   +1 more source

Diagrammatic Reasoning and Modelling in the Imagination: The Secret Weapons of the Scientific Revolution [PDF]

open access: yes, 2000
Just before the Scientific Revolution, there was a "Mathematical Revolution", heavily based on geometrical and machine diagrams. The "faculty of imagination" (now called scientific visualization) was developed to allow 3D understanding of planetary ...
Franklin, James
core   +1 more source

Mathematical methods in medical image processing [PDF]

open access: yesBulletin of the American Mathematical Society, 2006
In this paper, we describe some central mathematical problems in medical imaging. The subject has been undergoing rapid changes driven by better hardware and software. Much of the software is based on novel methods utilizing geometric partial differential equations in conjunction with standard signal/image processing techniques as well as computer ...
Angenent, Sigurd   +2 more
openaire   +2 more sources

Supernova Educator's Guide [PDF]

open access: yes, 2008
This educator’s guide features three curriculum enhancement activities and one scientific literacy activity, extensive background information, assessment rubrics, student worksheets, extension and transfer activities, and detailed information about the ...

core  

Cloud Detection Challenge-Methods and Results

open access: yesIEEE Access
Accurate cloud detection is critical for advancing atmospheric monitoring and meteorological forecasting. This paper presents the Cloud Detection Challenge, an initiative aimed at enhancing cloud detection through innovative solutions using lidar-based ...
Alessio Barbaro Chisari   +9 more
doaj   +1 more source

Mathematical Analysis of Ultrafast Ultrasound Imaging [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2017
25 pages, 13 ...
ALBERTI, GIOVANNI   +3 more
openaire   +3 more sources

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