Open AccessCalibration of a panoramic 3D reconstruction system
Author(s) -
CórdovaEsparza Diana Margarita,
GonzálezBarbosa JoséJoel,
Terven Juan R.,
HurtadoRamos Juan B.,
AlmarazCabral CésarCruz
Publication year - 2019
Publication title -
iet image processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.401
H-Index - 45
eISSN - 1751-9667
pISSN - 1751-9659
DOI - 10.1049/iet-ipr.2018.5365
Subject(s) - catadioptric system , computer vision , projector , artificial intelligence , computer science , projection (relational algebra) , calibration , reprojection error , pixel , structured light , computer graphics (images) , optics , image (mathematics) , mathematics , algorithm , physics , statistics , lens (geology)
Owing to their large field of view, a catadioptric imaging system is widely used in several research areas, including robot navigation, surveillance, and three‐dimensional (3D) reconstruction. The modelling and calibration of these systems allow the accurate measurement of objects. This paper presents a calibration method for a panoramic 3D reconstruction system based on pattern projection composed of two modules. The first module, which contains a charged coupled device camera and a parabolic mirror allows the acquisition of catadioptric images. The second module is a catadioptric projection system made of a light projector and a parabolic mirror that generates a projected pattern over the target for reconstruction purposes. Both the modules are calibrated independently. The method achieves a reprojection error of 0.6 pixels in the camera module and 1.2 pixels in the catadioptric projection system. To evaluate the performance of the proposed method, the results show 3D reconstructions of multiple objects with tolerances around 1.3 mm.