Self-calibration from image triplets

We describe a method for determining affine and metric calibration of a camera with unchanging internal parameters undergoing planar motion. It is shown that affine calibration is recovered uniquely, and metric calibration up to a two fold ambiguity. <br> The novel aspects of this work are: fi...

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Bibliographic Details
Main Authors: Armstrong, M, Zisserman, A, Hartley, R
Format: Conference item
Language:English
Published: Springer 2005
Description
Summary:We describe a method for determining affine and metric calibration of a camera with unchanging internal parameters undergoing planar motion. It is shown that affine calibration is recovered uniquely, and metric calibration up to a two fold ambiguity. <br> The novel aspects of this work are: first, relating the distinguished objects of 3D Euclidean geometry to fixed entities in the image; second, showing that these fixed entities can be computed uniquely via the trifocal tensor between image triplets; third, a robust and automatic implementation of the method. <br> Results are included of affine and metric calibration and structure recovery using images of real scenes.