Results 11 to 20 of about 49,732,844 (280)
Shape from Gradients. A psychophysical and computational study of the role complex illumination gradients, such as shading and mutual illumination, play in three-dimensional shape perception. [PDF]
, 2013 The human visual system gathers information about three-dimensional object shape from a wide range of sources. How effectively we can use these sources, and how they are combined to form a consistent and accurate percept of the 3D world is the focus of ...
Harding, Glen
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Robust Shape from Shading [PDF]
Procedings of the British Machine Vision Conference 1993, 1993 Existing shape from shading algorithms are not robust enough to work reliably with real images. We present a new paradigm for shape from shading based upon a scale space surface representation. Using this representation, the shape from shading problem becomes one of forming a surface from Gaussian basis functions in such a way that the shading in the ...
Jones, A. G. +1 more
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Luminance contrast provides metric depth information
Royal Society Open Science, 2023 The perception of depth from retinal images depends on information from multiple visual cues. One potential depth cue is the statistical relationship between luminance and distance; darker points in a local region of an image tend to be farther away than
Paul B. Hibbard +4 more
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A Linearization–Based Hybrid Approach for 3D Reconstruction of Objects in a Single Image
International Journal of Applied Mathematics and Computer Science, 2021 The shape-from-shading (SFS) technique uses the pattern of shading in images in order to obtain 3D view information. By virtue of their ease of implementation, linearization-based SFS algorithms are frequently used in the literature.
Kotan Muhammed +2 more
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Reconstruction of High-Frequency Lunar Digital Elevation Model using Shape from Shading [PDF]
INCAS Bulletin, 2018 This paper deals with a procedure to reconstruct a lunar surface based on fusion of Shape from Shading with absolute depth information exploited from Lunar Orbiter Laser Altimeter data.
Min-Hyun CHO, Min-Jea TAHK
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IEEE Access, 2022 Computer vision and deep learning approaches have an important role in industrial inspection systems. Computer vision technology is essential for fast, defect-free control of products in the production line.
Feyza Selamet +2 more
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On the perception of shape from shading [PDF]
Perception & Psychophysics, 1992 The extraction of three-dimensional shape from shading is one of the most perceptually compelling, yet poorly understood, aspects of visual perception. In this paper, we report several new experiments on the manner in which the perception of shape from shading interacts with other visual processes such as perceptual grouping, preattentive search ("pop ...
D A, Kleffner, V S, Ramachandran
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STOCKPILE MONITORING USING LINEAR SHAPE-FROM-SHADING ON PLANETSCOPE IMAGERY [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 The storage and management of stockpiles of materials is a fundamental process in large scale activities such as mining, civil engineering, and in the management of waste landfill sites.
M. d’Autume +4 more
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Applying Albedo Estimation and Implicit Neural Representations to Well-Posed Shape From Shading
IEEE Access, 2023 We present a method that improves the accuracy of depth maps by combining albedo estimation and implicit neural representations to the well-posed shape from shading.
Wanxin Bao +3 more
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Is countershading camouflage robust to lighting change due to weather? [PDF]
Royal Society Open Science, 2018 Countershading is a pattern of coloration thought to have evolved in order to implement camouflage. By adopting a pattern of coloration that makes the surface facing towards the sun darker and the surface facing away from the sun lighter, the overall ...
Olivier Penacchio +2 more
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