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Euclidean upgrading from segment lengths



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Ronda Prieto, José Ignacio and Valdés Morales, Antonio (2010) Euclidean upgrading from segment lengths. International Journal of Computer Vision, 90 (3). pp. 350-368. ISSN 0920-5691 (Print) 1573-1405 (Online)


Official URL: http://link.springer.com/content/pdf/10.1007%2Fs11263-010-0369-z


We address the problem of the recovery of Euclidean structure of a projectively distorted n-dimensional space from the knowledge of segment lengths. This
problem is relevant, in particular, for Euclidean reconstruction with uncalibrated cameras, extending previously known results in the affine setting. The key concept is the Quadric of Segments (QoS), defined in a higher-dimensional space by the set of segments
of a fixed length from which Euclidean structure can be obtained in closed form. We have intended to make a thorough study of the properties of the QoS, including the
determination of the minimum number of segments of arbitrary length that determine it and its relationship with the standard geometric objects associated to the Euclidean structure of space. Explicit formulas are given to obtain the dual absolute quadric and the absolute quadratic complex from the QoS. Experiments with real and synthetic images evaluate the performance of the techniques.

Item Type:Article
Uncontrolled Keywords:Camera calibration; Euclidean upgrading; 3D reconstruction
Subjects:Sciences > Computer science > Artificial intelligence
Sciences > Mathematics > Geometry
ID Code:10197
Deposited On:24 Feb 2010 11:23
Last Modified:12 Dec 2018 15:13

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