Sensors for 3D Imaging: Metric Evaluation and Calibration of a CCD/CMOS Time-of-Flight Camera

Sensors

Filiberto Chiabrando¹  Roberto Chiabrando²  Dario Piatti³ 

[1] DINSE, Politecnico di Torino, Viale Mattioli, 39, 10125, Torino, Italy; E-Mail:;DEIAFA, Facoltà di Agraria, Università degli Studi di Torino, Via L. da Vinci, 44, 10095 Grugliasco (TO), Italy; E-Mail:;DITAG, Politecnico di Torino, C.so Duca degli Abruzzi, 24, 10129, Torino, Italy

关键词: Time-of-Flight camera;    range imaging;    calibration;    systematic errors;    CCD/CMOS sensor;   

DOI  :  10.3390/s91210080

来源: mdpi

【 摘 要 】

3D imaging with Time-of-Flight (ToF) cameras is a promising recent technique which allows 3D point clouds to be acquired at video frame rates. However, the distance measurements of these devices are often affected by some systematic errors which decrease the quality of the acquired data. In order to evaluate these errors, some experimental tests on a CCD/CMOS ToF camera sensor, the SwissRanger (SR)-4000 camera, were performed and reported in this paper. In particular, two main aspects are treated: the calibration of the distance measurements of the SR-4000 camera, which deals with evaluation of the camera warm up time period, the distance measurement error evaluation and a study of the influence on distance measurements of the camera orientation with respect to the observed object; the second aspect concerns the photogrammetric calibration of the amplitude images delivered by the camera using a purpose-built multi-resolution field made of high contrast targets.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.