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Planar homography: accuracy analysis and applications

Projective homography sits at the heart of many problems in image registration. In addition to many methods for estimating the homography parameters (R.I. Hartley and A. Zisserman, 2000), analytical expressions to assess the accuracy of the transformation parameters have been proposed (A. Criminisi et al., 1999). We show that these expressions provide less accurate bounds than those based on the earlier results of Weng et al. (1989). The discrepancy becomes more critical in applications involving the integration of frame-to-frame homographies and their uncertainties, as in the reconstruction of terrain mosaics and the camera trajectory from flyover imagery. We demonstrate these issues through selected examples

© IEEE International Conference on Image Processing : 2005 : ICIP 2005, 2005, vol. 1

IEEE

Author: Negahdaripour, Shahriar
Prados Gutiérrez, Ricard
García Campos, Rafael
Date: 2005
Abstract: Projective homography sits at the heart of many problems in image registration. In addition to many methods for estimating the homography parameters (R.I. Hartley and A. Zisserman, 2000), analytical expressions to assess the accuracy of the transformation parameters have been proposed (A. Criminisi et al., 1999). We show that these expressions provide less accurate bounds than those based on the earlier results of Weng et al. (1989). The discrepancy becomes more critical in applications involving the integration of frame-to-frame homographies and their uncertainties, as in the reconstruction of terrain mosaics and the camera trajectory from flyover imagery. We demonstrate these issues through selected examples
Format: application/pdf
Citation: Negahdaripour, S., Prados, R., i García, R. (2005). Planar homography: accuracy analysis and applications. IEEE International Conference on Image Processing : 2005 : ICIP 2005, 1, 1089-1092. Recuperat 11 maig 2010, a http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1529944
ISBN: 0-7803-9134-9
Document access: http://hdl.handle.net/10256/2254
Language: eng
Publisher: IEEE
Collection: Reproducció digital del document publicat a: http://dx.doi.org/10.1109/ICIP.2005.1529944
Articles publicats (D-ATC)
Is part of: © IEEE International Conference on Image Processing : 2005 : ICIP 2005, 2005, vol. 1
Rights: Tots els drets reservats
Subject: Geometria projectiva
Imatges -- Processament
Visió per ordinador
Computer vision
Image processing
Projective geometry
Title: Planar homography: accuracy analysis and applications
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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