Results 271 to 280 of about 1,253,282 (331)
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ACM Transactions on Graphics, 2018
In typical cameras the optical system is designed first; once it is fixed, the parameters in the image processing algorithm are tuned to get good image reproduction.
V. Sitzmann +7 more
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In typical cameras the optical system is designed first; once it is fixed, the parameters in the image processing algorithm are tuned to get good image reproduction.
V. Sitzmann +7 more
semanticscholar +1 more source
Depth of field in light field rendering
Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429), 2004This paper focuses on the sampling problem in light field rendering (LFR) that is a fundamental approach to image based rendering. Quality of LFR depends on a light ray database generated from pre-acquired images, since image synthesis is a process of gathering appropriate light ray data from the database.
Keita Takahashi 0001 +2 more
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Depth of Field for the Presbyope
American journal of optometry and physiological optic, 1981Abstract As a general rule the near addition (add) for a presbyope is selected so that the range of clear vision is dioptrically and not linearly balanced. Implicit in such thinking is the assumption that the dioptric and linear range of clear vision cannot be simultaneously balanced.
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Obtaining Exposure and Depth of Field: School Nurses “Seeing” Youth Vulnerability to Trafficking
Journal of Interpersonal Violence, 2019Trafficking of youth is a growing phenomenon. How commercially exploited youth present in schools is multifaceted and poorly understood. Like other providers, school nurses are on the frontlines, yet can misunderstand youth who are commercially exploited.
Hannah E. Fraley, T. Aronowitz
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Depth detection capability and ultra-large depth of field in imaging through a thin scattering layer
Journal of Optics, 2019A wavelength-depth-matching method based on speckle correlation is proposed to achieve an ultra-large depth of field (DOF) of 90.5 mm experimentally on one side in imaging through a thin scattering layer.
Junpeng Xie +5 more
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Depth of Field/Depth of Understanding
Schools, 2010Abstract The article is a personal account of my engagement with some recent neuroscientific theory put forth by Mary Helen Immordino‐Yang (University of Southern California) about the integral relationship between emotion and cognition. Specifically, the research suggests the necessity of engaging students on an emotional level in order to thoroughly ...
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Large‐depth‐of‐field full‐field optical angiography
Journal of Biophotonics, 2019A large‐depth‐of‐field full‐field optical angiography (LD‐FFOA) method is developed to expand the depth‐of‐field (DOF) using a contrast pyramid fusion algorithm (CPFA).
Mingyi Wang +9 more
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Dialectical Anthropology, 2009
It is, of course, well known that if we focus a camera on an object at some definite distance from the camera lens, there will be a finite range of distances in front of and beyond the focused object in which everything appears acceptably in focus, while outside that range everything becomes progressively more blurred at increasing distances from the ...
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It is, of course, well known that if we focus a camera on an object at some definite distance from the camera lens, there will be a finite range of distances in front of and beyond the focused object in which everything appears acceptably in focus, while outside that range everything becomes progressively more blurred at increasing distances from the ...
openaire +2 more sources
An extended depth-of-field imaging system with a non-rotationally symmetric phase mask.
Review of Scientific Instruments, 2018Optical imaging system offers best performance across a range of applications such as machine vision, medical examination, security, and quality inspection in a production line.
Hongbo Xie +7 more
semanticscholar +1 more source