Calibration of a wide angle stereoscopic system
Inaccuracies in the calibration of a stereoscopic system appear with errors in point correspondences between both images and inexact points localization in each image. Errors increase if the stereoscopic system is composed of wide angle lens cameras. We propose a technique where detected points in b...
| Autores: | , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/30840 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/30840 |
| Access Level: | acceso abierto |
| Palavra-chave: | Epipolar constraints Fundamental matrix Geometrical constraints Lens distortion Nonlinear minimization Point correspondence Point localization Point location Stereoscopic systems Wide angle Wide-angle lens Errors Calibration INGENIERIA DE SISTEMAS Y AUTOMATICA |
| Resumo: | Inaccuracies in the calibration of a stereoscopic system appear with errors in point correspondences between both images and inexact points localization in each image. Errors increase if the stereoscopic system is composed of wide angle lens cameras. We propose a technique where detected points in both images are corrected before estimating the fundamental matrix and the lens distortion models. Since points are corrected first, errors in point correspondences and point localization are avoided. To correct point location in both images, geometrical and epipolar constraints are imposed in a nonlinear minimization problem. Geometrical constraints define the point localization in relation to its neighbors in the same image, and eipolar constraints represent the location of one point referred to its corresponding point in the other image. © 2011 Optical Society of America. |
|---|