title: Calibration of a trinocular system formed with wide angle lens cameras.
abstract: To obtain 3D information of large areas, wide angle lens cameras are used to reduce the number of cameras as much as possible. However, since images are high distorted, errors in point correspondences increase and 3D information could be erroneous. To increase the number of data from images and to improve the 3D information, trinocular sensors are used. In this paper a calibration method for a trinocular sensor formed with wide angle lens cameras is proposed. First pixels locations in the images are corrected using a set of constraints which define the image formation in a trinocular system. When pixels location are corrected, lens distortion and trifocal tensor is computed.
authors.affiliation: Instituto de Automática e Informática Industrial, Universitat Politècnica de València, Camino de Vera s/n, Valencia, Spain. cricolfe@isa.upv.es
authors.forename: Carlos
authors.initials: C
authors.lastname: Ricolfe-Viala
authors.forename: Antonio-Jose
authors.initials: AJ
authors.lastname: Sanchez-Salmeron
authors.forename: Angel
authors.initials: A
authors.lastname: Valera
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D002138:Calibration; D007089:Image Enhancement / Q000295:instrumentation / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D007909:Lenses; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D010363:Pattern Recognition, Automated / Q000379:methods*; D010780:Photogrammetry / Q000379:methods; D012637:Security Measures