Direct recovery of shape from multiple views: a parallax based approach

Given two arbitrary views of a scene under central projection, if the motion of points on a parametric surface is compensated, the residual parallax displacement field on the reference image is an epipolar field. If the surface aligned is a plane, the parallax magnitude at an image point is directly...

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Bibliographic Details
Published inPattern Recognition, 1994 12th International Conference On. Vol. 1 Vol. 1; pp. 685 - 688 vol.1
Main Authors Kumar, R., Anandan, P., Hanna, K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1994
Subjects
Cameras
Geometry
Inspection
Joining processes
Layout
Motion analysis
Motion estimation
Shape
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ISBN0818662654
9780818662652
DOI10.1109/ICPR.1994.576402

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Summary:Given two arbitrary views of a scene under central projection, if the motion of points on a parametric surface is compensated, the residual parallax displacement field on the reference image is an epipolar field. If the surface aligned is a plane, the parallax magnitude at an image point is directly proportional to the height of the point from the plane and inversely proportional to its depth from the camera. The authors exploit the above theorem to infer 3D height information from oblique aerial 2D images. The authors use direct methods to register the aerial images and develop methods to infer height information under the following three conditions: (i) focal length and image center are both known, (ii) only the focal length is known, and (iii) both are unknown.
ISBN:0818662654
9780818662652
DOI:10.1109/ICPR.1994.576402