Results 41 to 50 of about 550,068 (301)

SEMANTIC SEGMENTATION OF BRAZILIAN SAVANNA VEGETATION USING HIGH SPATIAL RESOLUTION SATELLITE DATA AND U-NET [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Large-scale mapping of the Brazilian Savanna (Cerrado) vegetation using remote sensing images is still a challenge due to the high spatial variability and spectral similarity of the different characteristic vegetation types (physiognomies). In this paper,
A. K. Neves   +7 more
doaj   +1 more source

Alignment of color discrimination in humans and image segmentation networks

open access: yesFrontiers in Psychology
The experiments allowed by current machine learning models imply a revival of the debate on the causes of specific trends of human visual psychophysics.
Pablo Hernández-Cámara   +3 more
doaj   +1 more source

Physics-aware nonparametric regression models for Earth data analysis

open access: yesEnvironmental Research Letters, 2022
Process understanding and modeling is at the core of scientific reasoning. Principled parametric and mechanistic modeling dominated science and engineering until the recent emergence of machine learning (ML).
Jordi Cortés-Andrés   +9 more
doaj   +1 more source

Riemannian Geometric Statistics in Medical Image Analysis

open access: yes, 2019
International audienceOver the past 15 years, there has been a growing need in the medical image computing community for principled methods to process nonlinear geometric data.
Sommer, Stephan   +2 more
core   +1 more source

Learning midlevel image features for natural scene and texture classification [PDF]

open access: yes, 2007
This paper deals with coding of natural scenes in order to extract semantic information. We present a new scheme to project natural scenes onto a basis in which each dimension encodes statistically independent information.
O'Connor, Noel E.   +4 more
core   +1 more source

Observer efficiency in free-localization tasks with correlated noise

open access: yesFrontiers in Psychology, 2014
The efficiency of visual tasks involving localization has traditionally been evaluated using forced choice experiments that capitalize on independence across locations to simplify the performance of the ideal observer.
Craig eAbbey, Miguel P. Eckstein
doaj   +1 more source

Image Authentication By Statistical Analysis

open access: yes, 2013
This paper investigates the discrimination between Photographic Images (PIM) and Computer Generated (CG) images. The proposed method exploits traces of Color Filter Array (CFA) interpolation, present in PIM images, together with the use of hypothesis testing theory.
Qiao, Tong   +2 more
openaire   +5 more sources

Discriminating natural image statistics from neuronal population codes. [PDF]

open access: yesPLoS ONE, 2010
The power law provides an efficient description of amplitude spectra of natural scenes. Psychophysical studies have shown that the forms of the amplitude spectra are clearly related to human visual performance, indicating that the statistical parameters ...
Satohiro Tajima, Masato Okada
doaj   +1 more source

Blind image quality assessment using joint statistics of gradient magnitude and laplacian features

open access: yes, 2014
Blind image quality assessment (BIQA) aims to evaluate the perceptual quality of a distorted image without information regarding its reference image.
Xue, WF   +4 more
core   +1 more source

A Cerebral Basis for Visual Discomfort and Visual Stress

open access: yesVision
Visual discomfort or visual stress is an uncomfortable subjective experience that occurs in response to specific visual stimuli. It affects a large proportion of the population to various degrees, disproportionately impacting those with heightened ...
Paul B. Hibbard   +31 more
doaj   +1 more source

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