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  1. International Journal of Computer Vision
  2. International Journal of Computer Vision : Volume 91
  3. International Journal of Computer Vision : Volume 91, Issue 3, February 2011
  4. Variable-Source Shading Analysis
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International Journal of Computer Vision : Volume 123
International Journal of Computer Vision : Volume 122
International Journal of Computer Vision : Volume 121
International Journal of Computer Vision : Volume 120
International Journal of Computer Vision : Volume 119
International Journal of Computer Vision : Volume 118
International Journal of Computer Vision : Volume 117
International Journal of Computer Vision : Volume 116
International Journal of Computer Vision : Volume 115
International Journal of Computer Vision : Volume 114
International Journal of Computer Vision : Volume 113
International Journal of Computer Vision : Volume 112
International Journal of Computer Vision : Volume 111
International Journal of Computer Vision : Volume 110
International Journal of Computer Vision : Volume 109
International Journal of Computer Vision : Volume 108
International Journal of Computer Vision : Volume 107
International Journal of Computer Vision : Volume 106
International Journal of Computer Vision : Volume 105
International Journal of Computer Vision : Volume 104
International Journal of Computer Vision : Volume 103
International Journal of Computer Vision : Volume 102
International Journal of Computer Vision : Volume 101
International Journal of Computer Vision : Volume 100
International Journal of Computer Vision : Volume 99
International Journal of Computer Vision : Volume 98
International Journal of Computer Vision : Volume 97
International Journal of Computer Vision : Volume 96
International Journal of Computer Vision : Volume 95
International Journal of Computer Vision : Volume 94
International Journal of Computer Vision : Volume 93
International Journal of Computer Vision : Volume 92
International Journal of Computer Vision : Volume 91
International Journal of Computer Vision : Volume 91, Issue 3, February 2011
A Quaternion Framework for Color Image Smoothing and Segmentation
The Canny Edge Detector Revisited
ROSy+: 3D Object Pose Normalization Based on PCA and Reflective Object Symmetry with Application in 3D Object Retrieval
Variable-Source Shading Analysis
Incremental Tensor Subspace Learning and Its Applications to Foreground Segmentation and Tracking
Recovering Occlusion Boundaries from an Image
International Journal of Computer Vision : Volume 91, Issue 2, January 2011
International Journal of Computer Vision : Volume 91, Issue 1, January 2011
International Journal of Computer Vision : Volume 90
International Journal of Computer Vision : Volume 89
International Journal of Computer Vision : Volume 88
International Journal of Computer Vision : Volume 87
International Journal of Computer Vision : Volume 86
International Journal of Computer Vision : Volume 85
International Journal of Computer Vision : Volume 84
International Journal of Computer Vision : Volume 83
International Journal of Computer Vision : Volume 82
International Journal of Computer Vision : Volume 81
International Journal of Computer Vision : Volume 80
International Journal of Computer Vision : Volume 79
International Journal of Computer Vision : Volume 78
International Journal of Computer Vision : Volume 77
International Journal of Computer Vision : Volume 76
International Journal of Computer Vision : Volume 75
International Journal of Computer Vision : Volume 74
International Journal of Computer Vision : Volume 73
International Journal of Computer Vision : Volume 72
International Journal of Computer Vision : Volume 71
International Journal of Computer Vision : Volume 70
International Journal of Computer Vision : Volume 69
International Journal of Computer Vision : Volume 68
International Journal of Computer Vision : Volume 67
International Journal of Computer Vision : Volume 66
International Journal of Computer Vision : Volume 65
International Journal of Computer Vision : Volume 64
International Journal of Computer Vision : Volume 63
International Journal of Computer Vision : Volume 62
International Journal of Computer Vision : Volume 61
International Journal of Computer Vision : Volume 60
International Journal of Computer Vision : Volume 59
International Journal of Computer Vision : Volume 58
International Journal of Computer Vision : Volume 57
International Journal of Computer Vision : Volume 56
International Journal of Computer Vision : Volume 55
International Journal of Computer Vision : Volume 54
International Journal of Computer Vision : Volume 53
International Journal of Computer Vision : Volume 52
International Journal of Computer Vision : Volume 51
International Journal of Computer Vision : Volume 50
International Journal of Computer Vision : Volume 49
International Journal of Computer Vision : Volume 48
International Journal of Computer Vision : Volume 47
International Journal of Computer Vision : Volume 46
International Journal of Computer Vision : Volume 45
International Journal of Computer Vision : Volume 44
International Journal of Computer Vision : Volume 43
International Journal of Computer Vision : Volume 42
International Journal of Computer Vision : Volume 41
International Journal of Computer Vision : Volume 40
International Journal of Computer Vision : Volume 39
International Journal of Computer Vision : Volume 38
International Journal of Computer Vision : Volume 37
International Journal of Computer Vision : Volume 36
International Journal of Computer Vision : Volume 35
International Journal of Computer Vision : Volume 34
International Journal of Computer Vision : Volume 33
International Journal of Computer Vision : Volume 32
International Journal of Computer Vision : Volume 31
International Journal of Computer Vision : Volume 30
International Journal of Computer Vision : Volume 29
International Journal of Computer Vision : Volume 28
International Journal of Computer Vision : Volume 27
International Journal of Computer Vision : Volume 26
International Journal of Computer Vision : Volume 25
International Journal of Computer Vision : Volume 24
International Journal of Computer Vision : Volume 23
International Journal of Computer Vision : Volume 22
International Journal of Computer Vision : Volume 21

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Variable-Source Shading Analysis

Content Provider SpringerLink
Author Forsyth, D. A.
Copyright Year 2010
Abstract The shading on curved surfaces is a cue to shape. Current computer vision methods for analyzing shading use physically unrealistic models, have serious mathematical problems, cannot exploit geometric information if it is available, and are not reliable in practice. We introduce a novel method of accounting for variations in irradiance resulting from interreflections, complex sources and the like. Our approach uses a spatially varying source model with a local shading model. Fast spatial variation in the source is penalised, consistent with the rendering community’s insight that interreflections are spatially slow. This yields a physically plausible shading model. Because modern cameras can make accurate reports of observed radiance, our method compels the reconstructed surface to have shading exactly consistent with that of the image. For inference, we use a variational formulation, with a selection of regularization terms which guarantee that a solution exists. Our method is evaluated on physically accurate renderings of virtual objects, and on images of real scenes, for a variety of different kinds of boundary condition. Reconstructions for single sources compare well with photometric stereo reconstructions and with ground truth.
Starting Page 280
Ending Page 302
Page Count 23
File Format PDF
ISSN 09205691
Journal International Journal of Computer Vision
Volume Number 91
Issue Number 3
e-ISSN 15731405
Language English
Publisher Springer US
Publisher Date 2010-10-15
Publisher Place Boston
Access Restriction Subscribed
Subject Keyword Computer vision Shape from shading Interreflections Object recognition Pattern Recognition Image Processing and Computer Vision Artificial Intelligence (incl. Robotics) Computer Imaging, Vision, Pattern Recognition and Graphics
Content Type Text
Resource Type Article
Subject Software Computer Vision and Pattern Recognition Artificial Intelligence
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