Results 31 to 40 of about 621,417 (312)

Computer Vision Algorithms of DigitSeis for Building a Vectorised Dataset of Historical Seismograms from the Archive of Royal Observatory of Belgium

open access: yesSensors, 2022
Archived seismograms recorded in the 20th century present a valuable source of information for monitoring earthquake activity. However, old data, which are only available as scanned paper-based images should be digitised and converted from raster to ...
Polina Lemenkova   +3 more
doaj   +1 more source

Strategies to Reduce the Expert Supervision Required for Deep Learning-Based Segmentation of Histopathological Images

open access: yesFrontiers in Medicine, 2019
The emergence of computational pathology comes with a demand to extract more and more information from each tissue sample. Such information extraction often requires the segmentation of numerous histological objects (e.g., cell nuclei, glands, etc.) in ...
Yves-Rémi Van Eycke   +4 more
doaj   +1 more source

A hierarchical genetic disparity estimation algorithm for multiview image synthesis [PDF]

open access: yes, 2000
A hierarchical genetic algorithm for disparity estimation is presented. The goal, to estimate reliable disparity fields with low computational cost, is reached using a hierarchical genetic matching procedure.
Clewer, DR   +7 more
core   +1 more source

Local affine image matching and synthesis based on structural patterns [PDF]

open access: yes, 2010
A general purpose block-to-block affine transformation estimator is described. The estimator is based on Fourier slice analysis and Fourier spectral alignment.
Park, Heechan   +2 more
core   +1 more source

Ultrasound imaging simulation and echocardiographic image synthesis [PDF]

open access: yesProceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2002
Presents a ray tracing ultrasound imaging simulation method that accounts for the effects of reflection, scattering and attenuation. Two-dimensional echocardiographic images were synthesized using this method. Nonlinear effects introduced by the signal processing units in an ultrasound imaging system were also emulated.
Mingzhou Song 0001   +2 more
openaire   +1 more source

Proposal to Improve the Image Quality of Short-Acquisition Time-Dedicated Breast Positron Emission Tomography Using the Pix2pix Generative Adversarial Network

open access: yesDiagnostics, 2022
This study aimed to evaluate the ability of the pix2pix generative adversarial network (GAN) to improve the image quality of low-count dedicated breast positron emission tomography (dbPET). Pairs of full- and low-count dbPET images were collected from 49
Tomoyuki Fujioka   +8 more
doaj   +1 more source

The Synthesis and Analysis of Color Images [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 1987
I describe a method for performing the synthesis and analysis of digital color images. The method is based on two principles. First, image data are represented with respect to the separate physical factors, surface reflectance and the spectral power distribution of the ambient light, that give rise to the perceived color of an object.
openaire   +2 more sources

Warplets : an image-dependent wavelet representation [PDF]

open access: yes, 2005
A novel image-dependent representation, warplets, based on self-similarity of regions is introduced. The representation is well suited to the description and segmentation of images containing textures and oriented patterns, such as fingerprints.
Bhalerao, Abhir   +5 more
core   +1 more source

An affine symmetric image model and its applications [PDF]

open access: yes, 2010
Natural images contain considerable redundancy, some of which is successfully captured using recently developed directional wavelets. In this paper, an affine symmetric image model is considered.
Park, Heechan   +2 more
core   +1 more source

Geometry-assisted image-based rendering for facial analysis and synthesis

open access: yes, 2022
S.493-505In this paper, we present an image-based method for the tracking and rendering of faces. We use the algorithm in an immersive video conferencing system where multiple participants are placed in a common virtual room.
Eisert, P., Rurainsky, J.
core   +1 more source

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