TY - GEN
T1 - Homography estimation for camera document scanning applications
AU - Juarez-Salazar, Rigoberto
AU - Diaz-Ramirez, Victor H.
N1 - Publisher Copyright:
© 2018 SPIE.
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
KW - Homography estimation
KW - camera document scanning
KW - perspective distortion
UR - http://www.scopus.com/inward/record.url?scp=85054614326&partnerID=8YFLogxK
U2 - 10.1117/12.2322001
DO - 10.1117/12.2322001
M3 - Contribución a la conferencia
AN - SCOPUS:85054614326
SN - 9781510620735
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optics and Photonics for Information Processing XII
A2 - Iftekharuddin, Khan M.
A2 - Diaz-Ramirez, Victor H.
A2 - Vazquez, Mireya Garcia
A2 - Awwal, Abdul A. S.
A2 - Marquez, Andres
PB - SPIE
T2 - Optics and Photonics for Information Processing XII 2018
Y2 - 19 August 2018 through 20 August 2018
ER -