Self-Calibration of PIV Video-Cameras in Scheimpflug Condition

In order to introduce more flexibility in calibration, the bundle adjustment approach is introduced for Stereo PIV systems in Scheimpflug condition. The calibration target is positionned by hand front of the video-cameras at different locations in space. From the multiple views of the calibration target , the parameters of the video-cameras with both the target locations and the 3D calibration points are estimated by non linear least mean squares. In the proposed calibration procedure, the laser plane equation is determined by searching for the homography between the image planes . The ability of the procedure for self-calibrating two f=50 mm video-cameras and recovering the equation of the measurement plane is experimentally tested.