Results 21 to 30 of about 13,391,983 (260)

Low-level contrast statistics are diagnostic of invariance of natural textures.

Frontiers in Computational Neuroscience, 2012
Texture may provide important clues for real world object and scene perception. For these clues to be reliable, they should ideally be invariant to common viewing variations such as changes in illumination and orientation.
Iris I. A. Groen, Sennay eGhebreab, Sennay eGhebreab, Victor A. F. Lamme, H. Steven Scholte   +4 more
doaj   +1 more source

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

ISPRS 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, A. K. Neves, T. S. Körting, L. M. G. Fonseca, C. D. Girolamo Neto, D. Wittich, G. A. O. P. Costa, C. Heipke   +7 more
doaj   +1 more source

Thermal Image Restoration Based on LWIR Sensor Statistics

Sensors, 2021
An imaging system has natural statistics that reflect its intrinsic characteristics. For example, the gradient histogram of a visible light image generally obeys a heavy-tailed distribution, and its restoration considers natural statistics.
Jaeduk Han, Haegeun Lee, Moon Gi Kang
doaj   +1 more source

Alignment of color discrimination in humans and image segmentation networks

Frontiers 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, Paula Daudén-Oliver, Valero Laparra, Jesús Malo   +3 more
doaj   +1 more source

Physics-aware nonparametric regression models for Earth data analysis

Environmental 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, Gustau Camps-Valls, Sebastian Sippel, Enikő Székely, Dino Sejdinovic, Emiliano Diaz, Adrián Pérez-Suay, Zhu Li, Miguel Mahecha, Markus Reichstein   +9 more
doaj   +1 more source

Observer efficiency in free-localization tasks with correlated noise

Frontiers 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

A Cerebral Basis for Visual Discomfort and Visual Stress

Vision
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, Peter Allen, Jordi M. Asher, Katherine Batey, Beverley Burke, Jason J. Braithwaite, Geoff G. Cole, Caelan Dow, Bruce J. W. Evans, Anna Franklin, Sarah M. Haigh, Hillevi Hemphälä, Ian Hosking, Andrew Keyes, Chan-su Lee, Ute Leonards, Cathy Manning, John Maule, Naomi Miller, Karen Monet, Louise O’Hare, Olivier Penacchio, Gordon T. Plant, Georgie Powell, Alice Price, Andrew J. Schofield, Miroslav Slouka, Petroc Sumner, Cleo Valentine, Thomas Wilcockson, Sanae Yoshimoto, Arnold J. Wilkins   +31 more
doaj   +1 more source

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

PLoS 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

Low-level contrast statistics of natural images can modulate the frequency of event-related potentials (ERP) in humans

Frontiers in Human Neuroscience, 2016
Humans are fast and accurate in categorizing complex natural images. It is, however, unclear what features of visual information are exploited by brain to perceive the images with such speed and accuracy.
Masoud Ghodrati, Masoud Ghodrati, Mahrad Ghodousi, Ali Yoonessi   +3 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source