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Proceedings Paper

Homography estimation for camera document scanning applications
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Paper Abstract

Rectangular shapes in observed scenes are transformed to quadrilaterals in resulting images due to perspective distortion. If the aspect ratio of the original rectangle is known, the associated homography can be computed directly and used for perspective correction. However, in camera document scanning applications, the aspect ratio of the imaged rectangle is unknown. In this work, a homography estimation method appropriate for document scanning applications is given. This method does not require a priori knowledge of the aspect ratio of the imaged rectangle nor a calibrated camera. The computational implementation is evaluated experimentally.

Paper Details

Date Published: 7 September 2018
PDF: 5 pages
Proc. SPIE 10751, Optics and Photonics for Information Processing XII, 107510H (7 September 2018); doi: 10.1117/12.2322001
Show Author Affiliations
Rigoberto Juarez-Salazar, Ctr. de Investigación y Desarrollo de Tecnología Digital (Mexico)
Victor H. Diaz-Ramirez, Ctr. de Investigación y Desarrollo de Tecnología Digital (Mexico)


Published in SPIE Proceedings Vol. 10751:
Optics and Photonics for Information Processing XII
Abdul A. S. Awwal; Khan M. Iftekharuddin; Mireya García Vázquez, Editor(s)

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