Improved Search Algorithm of Digital Speckle Pattern Based on PSO and IC-GN

Digital speckle correlation method has not only been widely used in a variety of photometric mechanical scenarios, but also integrated with multiple disciplines. In the future, it will even be inextricably linked to Internet Things, autonomous driving, deep learning and other fields. For given hardware condition, is great significance improve efficiency integer-pixel search increase accuracy sub-pixel algorithm. this paper, we propose an improved digital method, which consists algorithm With respect search, aiming address two problems uniqueness maximum value parameter setting PSO-W algorithm, PSO-1 proposed, results comparison experiments show that higher efficiency. terms sub-pixels, based on IC-GN highest at present, IV-ICGN simulation experiment proposed than