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Iterative Convolutional Neural Network-based Illumination Estimation
2021
IEEE Access
An accurate illumination estimation is crucial for successful computational color constancy. However, this is an ill-posed problem, and many methods try to comprehend it with different assumptions. ...
In this paper, an iterative method for estimating the scene illumination color is proposed. ...
space restrictions [4] , [33] - [35] , gray pixel detection [36] , regression trees with simple color features [37] , and others. ...
doi:10.1109/access.2021.3057072
fatcat:vqvv3bvgljhjnamvapb4f2qk7y
Head pose estimation and its application in TV viewers' behavior analysis
2016
2016 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE)
In this thesis, a coarse-to-fine head pose estimation method is proposed, by decomposing the original pose space in a hierarchical structure. ...
Furthermore, we build an application of analyzing TV viewers' behaviors from video recordings, by integrating face detection, face tracking and head pose estimation. ...
After that, by learning the mapping from feature space to pose space, head pose for the face image is estimated. ...
doi:10.1109/ccece.2016.7726649
dblp:conf/ccece/WuLH16
fatcat:dvwu2udplvbglc52tbfnt4nhc4
Appearance features in Encoding Color Space for visual surveillance
2018
Neurocomputing
For object track-25 ing, Danelljan et al. [17] utilized color names as feature representation, and proved that color attributes provides superior performance for object tracking. ...
These color spaces somehow enable meaningful representation for color, yet may lack distinctiveness for real-world tasks. ...
Encoding Color Space Human have the ability of color constancy, and are able to perceive stable object color in spite of serious variation in illumination. ...
doi:10.1016/j.neucom.2018.04.019
fatcat:bwydl6wti5dhdlcrzy4n2i3lju
Gestalt-like constraints produce veridical (Euclidean) percepts of 3D indoor scenes
2016
Vision Research
The top views the subjects reconstructed were configured accurately except for their overall size. ...
These size errors varied from trial to trial, and were shown most-likely to result from the presence of a response bias. ...
Steinman for helping us set up the experiments and write this paper. ...
doi:10.1016/j.visres.2015.09.011
pmid:26525845
pmcid:PMC4842174
fatcat:5kupf2hk5rckljydgoaxijc6tq
Hyperspectral Imaging and Analysis for Sparse Reconstruction and Recognition
[article]
2014
arXiv
pre-print
Hyperspectral image databases have been developed and made publicly available for further research in compressed hyperspectral imaging, forensic document analysis and spectral reflectance recovery. ...
This thesis proposes spatio-spectral techniques for hyperspectral image analysis. ...
We investigated color constancy for illuminant estimation and proposed an adaptive illumination estimation technique, exploiting the properties of hyperspectral images. ...
arXiv:1407.7686v1
fatcat:cdx3eaoyvjaf7d6ve56c7ohv54
A survey of appearance models in visual object tracking
2013
ACM Transactions on Intelligent Systems and Technology
Second, the existing statistical modeling schemes for tracking-bydetection are reviewed according to their model-construction mechanisms: generative, discriminative, and hybrid generativediscriminative ...
., local and global). ...
A discriminative tree-structured classifier is trained to make efficient detection and pose estimation over a large pose space with three degrees of freedom. ...
doi:10.1145/2508037.2508039
fatcat:uwptu4nkmbhjvib5szoafjhg3i
A Survey of Appearance Models in Visual Object Tracking
[article]
2013
arXiv
pre-print
Second, the existing statistical modeling schemes for tracking-by-detection are reviewed according to their model-construction mechanisms: generative, discriminative, and hybrid generative-discriminative ...
., local and global). ...
A discriminative tree-structured classifier is trained to make efficient detection and pose estimation over a large pose space with three degrees of freedom. ...
arXiv:1303.4803v1
fatcat:tx333ej63faufnxffjttac4jxq
Neuronal population mechanisms of lightness perception
2018
Journal of Neurophysiology
We searched for a neuronal mechanism of lightness perception by determining whether the responses of neuronal populations in primary visual cortex and area V4 could account for a lightness illusion measured ...
We found that the way individual units encode the luminance (or equivalently for our stimuli, contrast) of the disk and its context is extremely heterogeneous. ...
ACKNOWLEDGMENTS We thank Joshua Alberts for assistance with recordings, Karen McCracken for technical assistance, and Amy Ni for helpful comments on an earlier version of the manuscript.
GRANTS ...
doi:10.1152/jn.00906.2017
pmid:30110233
pmcid:PMC6295546
fatcat:nbellbnnvvb5tmsx4743dtqor4
Bidirectional Texture Function Modeling: A State of the Art Survey
2009
IEEE Transactions on Pattern Analysis and Machine Intelligence
In this paper we categorize, critically survey, and psychophysically compare such approaches, which were published in this newly arising and important computer vision & graphics area. ...
However, the appearance of real materials dramatically changes with illumination and viewing variations. ...
The color cumulative histograms of individual BTF images, in perceptually uniform CIE Lab color-space, are used as the data features. ...
doi:10.1109/tpami.2008.246
pmid:19762922
fatcat:qrfnlegr2nhj5brylmhm7tzn5a
Adaptive fusion of particle filtering and spatio-temporal motion energy for human tracking
2014
Pattern Recognition
However, reliable tracking of objects in the presence of occlusions, pose and illumination changes is still a challenging topic. ...
At the same time, the importance of both colour and motion energy cues is determined in the stage of reliability evaluation. ...
Lam and Shi [51] successfully applied motion energy neurons for active visual tracking of heading directions. ...
doi:10.1016/j.patcog.2014.05.006
fatcat:ajv5zagcgvfyjnwklxhucnex3q
Representational drift in primary olfactory cortex
[article]
2020
bioRxiv
pre-print
Continuous drift poses the question of the role of piriform in odor identification. ...
This instability may reflect the unstructured connectivity of piriform and may be a property of other unstructured cortices. ...
Stimulus identity is denoted by circle color and number. ...
doi:10.1101/2020.09.24.312132
fatcat:ug44sehnnfgu3gkhvil5kjajwe
Inheritance and Natural Selection on Functional Traits
2003
International journal of plant sciences
Attributes of species' biology and experimental design affected selection and heritability estimates. Heritability was lower in inbreeding species relative to outbreeders, as expected. ...
At the same time, selection often varies in space and time and across life-history episodes. ...
RMA slopes and confidence intervals were estimated with software for reduced major axis regression (Bohanek 2002) . ...
doi:10.1086/368233
fatcat:h7gthepby5h2fm6ikiglgmwlee
Does Malthus Really Explain the Constancy of Living Standards?
2012
Social Science Research Network
This explains the constancy of living standards. This new theory reinterprets the Malthusian constancy, the industrial revolution and the ancient market economies. ...
This paper challenges the Malthusian explanation of the constancy and replaces it with the idea of group selection. ...
I regress the annual birth and death rates on the wage indices and other con- 15 Wrigley and Schofield (1981) estimated the annual numbers of baptisms and burials in England. ...
doi:10.2139/ssrn.2187113
fatcat:tvtciz7dpnbypez7yyuhtlngoa
TOOLKIT FOR IMMERSIVE VIRTUAL SIMULATORS WITH BIOFEEDBACK
2020
Vestnik komp iuternykh i informatsionnykh tekhnologii
An overview of existing solutions such as tools for the development and reproduction of virtual simulators is considered. ...
The architecture of the instrumental complex for the creation and reproduction of immersive virtual simulators using biological feedback is proposed. ...
Color spaces For convenience, a parameterized color space is often defined. ...
doi:10.14489/vkit.2020.08.pp.019-028
fatcat:nyet4p3qkvecliahuktcjbkwbu
The foundations of confounding in epidemiology
1987
Computers and Mathematics with Applications
action space). ...
The sample space for inference on P2 will be uniquely defined if Q is boundedly complete for P2 given Pt known [24] . ...
doi:10.1016/0898-1221(87)90236-7
fatcat:xfhusumsd5bttfzmoq7ytzthom
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