A camera calibration method, a computer program, a computer-readable recording medium and a camera calibration system

A method for calibrating a camera (30) mounted behind a transparent wall (40) so as to obtain a projection function of the camera outputting, for a point (Mi) of a scene (A), the 2D-location ((x i,y i ) calculated ) of its projection in an image (Ii) of the scene. The method comprises: S30) determining image-based 2D-locations ((x i,y i ) image ) of image points (m i_image ) in image(s) (Ii) of a scene acquired through the transparent wall, the image points (mi image ) corresponding to points (Mi) of the scene; and, S50) the projection function being a function of refraction parameter(s), calculating the value of said refraction parameter(s) by minimizing an error function (E) function of said at least one refraction parameter; the error function (E) including a projection error (E projection ) function of distances between said image-based 2D-locations ((x i,y i ) image ) and calculated 2D-locations ((x i,y i ) calculated ) obtained by applying the projection function to the points (Mi) of the scene. System for implementing said method.

Octrooi-publicatienummer: WO2021004642

Jaar aanvraag: 2021

Jaar toekenning: 2022

Jaar van publicatie: 2021

Status: Aangevraagd

Technologiedomeinen: Computertechnologie

Gevalideerd voor IOF-sleutel: Ja

Toegewezen aan: Associatie KULeuven