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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

Autor: Negahdaripour, Shahriar
Prados Gutiérrez, Ricard
García Campos, Rafael
Data: 2005
Resum: 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
Cita: 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
Accés al document: http://hdl.handle.net/10256/2254
Llenguatge: eng
Editor: IEEE
Col·lecció: Reproducció digital del document publicat a: http://dx.doi.org/10.1109/ICIP.2005.1529944
Articles publicats (D-ATC)
És part de: © IEEE International Conference on Image Processing : 2005 : ICIP 2005, 2005, vol. 1
Drets: Tots els drets reservats
Matèria: Geometria projectiva
Imatges -- Processament
Visió per ordinador
Computer vision
Image processing
Projective geometry
Títol: Planar homography: accuracy analysis and applications
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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