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Shadow Removal Based on Shadow Direction and Shadow Attributes
2006 International Conference on Computational Inteligence for Modelling Control and Automation and International Conference on Intelligent Agents Web Technologies and International Commerce (CIMCA'06), 2006Moving shadow removal is critical for robust moving object tracking system. A shadow removal algorithm based on shadow attributes is presented in this paper. The direction of shadow is estimated first, and then shadow points are sampled based on the direction of shadow. At last the shadow attributes is calculated using the sampled shadow points.
Yinghua Lu +4 more
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Perception, 2012
Shadows are visual objects and as such are subject to preference rules for segmenting the visual scene (such as Gestalt laws). These rules govern shadows along two dimensions: their general unity and individuation (eg they describe a certain area as a unitary shadow as opposed to a set of two distinct shadows), and their being the of a given object ...
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Shadows are visual objects and as such are subject to preference rules for segmenting the visual scene (such as Gestalt laws). These rules govern shadows along two dimensions: their general unity and individuation (eg they describe a certain area as a unitary shadow as opposed to a set of two distinct shadows), and their being the of a given object ...
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Journal of Cognitive Neuroscience, 2003
AbstractThe aims of the present study were to investigate whether the processing of an object shadow occurs implicitly, that is without conscious awareness, and where physically within the human brain shadows are processed. Here we present neurological evidence, obtained from studies of brain-injured patients with visual neglect, that shadows are ...
CASTIELLO, UMBERTO +3 more
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AbstractThe aims of the present study were to investigate whether the processing of an object shadow occurs implicitly, that is without conscious awareness, and where physically within the human brain shadows are processed. Here we present neurological evidence, obtained from studies of brain-injured patients with visual neglect, that shadows are ...
CASTIELLO, UMBERTO +3 more
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New England Journal of Medicine, 2013
A bilingual pediatrician is afforded an unusual window into the lives of America's illegal immigrants: though they're shut out of our health care system, their American-born children are eligible for Medicaid, so they tell the pediatrician their stories and seek advice.
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A bilingual pediatrician is afforded an unusual window into the lives of America's illegal immigrants: though they're shut out of our health care system, their American-born children are eligible for Medicaid, so they tell the pediatrician their stories and seek advice.
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Applied Optics, 2015
We investigate the brightness distribution in and around outdoor shadows (for a variety of sky conditions) using modeling and field measurements. The dominant factor influencing the brightness of a shadow is the solid angle subtended by the object blocking the Sun.
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We investigate the brightness distribution in and around outdoor shadows (for a variety of sky conditions) using modeling and field measurements. The dominant factor influencing the brightness of a shadow is the solid angle subtended by the object blocking the Sun.
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Journal of Cases in Educational Leadership, 2015
This case highlights a school principal’s leading practice as she worked to transform the social and educational status of students, teachers, and community in a small urban primary school. We employ shadowing, a technique popularized in work-based education and photography, as reflective and research tools.
Laurette Bristol +2 more
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This case highlights a school principal’s leading practice as she worked to transform the social and educational status of students, teachers, and community in a small urban primary school. We employ shadowing, a technique popularized in work-based education and photography, as reflective and research tools.
Laurette Bristol +2 more
openaire +1 more source
The power of shadows: shadow stereopsis
Journal of the Optical Society of America A, 1989Our ability to localize objects in three-dimensional space relies primarily on the stereoscopic capability of our visual system. It is generally believed that parallax disparities in the retinal images in our two eyes are required for experiencing stereovision. Traditionally, parallax disparities refer to points that are well defined within the objects,
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2017
The study sets out to examine in detail a Carnegie Shadowing Group in a large urban comprehensive school, questioning what the impact may be of participation in such a group. This piece of action research takes place in the context of a wider literature-based enquiry into the nature and benefits of reading for pleasure and what may motivate young ...
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The study sets out to examine in detail a Carnegie Shadowing Group in a large urban comprehensive school, questioning what the impact may be of participation in such a group. This piece of action research takes place in the context of a wider literature-based enquiry into the nature and benefits of reading for pleasure and what may motivate young ...
openaire +1 more source