title: Recovering the absolute phase maps of two fringe patterns with selected frequencies.
abstract: Phase unwrapping is an important and challenging issue in fringe pattern profilometry. In this Letter we propose an approach to recover absolute phase maps of two fringe patterns with selected frequencies. Compared to existing temporal multiple frequency algorithms, the two frequencies in our proposed algorithm can be high enough and thus enable efficient and accurate recovery of absolute phase maps. Experiment results are presented to confirm the effectiveness of the proposed technique.
authors: School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Northfields Avenue, Wollongong, New South Wales 2522, Australia.
authors: Yi
authors: Y
authors: Ding
authors: Jiangtao
authors: J
authors: Xi
authors: Yanguang
authors: Y
authors: Yu
authors: Joe
authors: J
authors: Chicharo