Fig. 1From: Adaptive particle image velocimetry based on sharpness metricsExemplary PIV images, auto- (AC) and cross-correlation (CC) of consecutive images. By adding aberrations with the deformable mirror in form of Zernike mode Z4 and Z7 to the particle images, the quality of the AC and CC peaks is degraded, which leads to a large systematic uncertainty for the velocity measurementBack to article page