Chinese Optics Letters, 2016, 14 (3): 031201, Published Online: Aug. 6, 2018
Three-dimensional positioning method for moving particles based on defocused imaging using single-lens dual-camera system Download: 764次
120.4640 Optical instruments 110.2970 Image detection systems 000.3110 Instruments, apparatus, and components common to the sciences
Abstract
A method to three-dimensional position moving particles with one lens and two cameras is proposed. Two particle images with different degrees of defocusing are adopted to solve the ambiguous problem of particle positions. A single-lens dual-camera system is developed to simultaneously capture these two images for the moving particles. The measurement principles and theoretical analysis are introduced first, and then simulated investigations and experimental research are discussed. The measurement errors in the simulations and experiments are less than 1% and 4%, respectively, in 20 times the depth of field of the system, which validates the feasibility of this method.
Wu Zhou, Na Jin, Minhua Jia, Huinan Yang, Xiaoshu Cai. Three-dimensional positioning method for moving particles based on defocused imaging using single-lens dual-camera system[J]. Chinese Optics Letters, 2016, 14(3): 031201.