Title :
Camera calibration for 2.5-D X-ray metrology
Author :
Gupta, R. ; Noble, A. ; Hartley, R. ; Mundy, J. ; Schmitz, A.
Author_Institution :
Gen. Electr. Corp. Res. & Dev. Center, Schenectady, NY, USA
Abstract :
This paper presents a new methodology for camera calibration of stereo X-ray projections. The image acquisition systems typically used in nondestructive evaluation result in views that are orthographic along one image axis and perspective along the other. A camera model for this sensing geometry, called the linear pushbroom model, is described. Four methods of calibration, which make different assumptions about what is known about the camera parameters, are presented and compared
Keywords :
calibration; cameras; industrial control; nondestructive testing; radiography; robot vision; stereo image processing; 2.5D X-ray metrology; camera calibration; camera model; camera parameters; image acquisition systems; image axis; industrial parts; linear pushbroom model; nondestructive evaluation; robotic arm; sensing geometry; stereo X-ray projections; Calibration; Cameras; Detectors; Fixtures; Grippers; Metrology; Pixel; Robot kinematics; Sensor arrays; X-ray imaging;
Conference_Titel :
Image Processing, 1995. Proceedings., International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-7310-9
DOI :
10.1109/ICIP.1995.537574
