Chinese Optics Letters, 2011, 9 (6): 061101, Published Online: Apr. 28, 2011  

Investigations of range accuracy for long-range three-dimensional active imaging Download: 925次

Author Affiliations
State Key Laboratory of Modern Optical Instrument, National Engineering Research Center for Optical Instrument, Optical Engineering Department, Zhejiang University, Hangzhou 310027, China
Abstract
Distance resolutions and noises are analyzed experimentally for long-range three-dimensional (3D) active imaging systems that have signal-to-noise ratios (SNRs) more optimal than 30:1. Findings indicate that the photon shot noise primarily determines the SNR. However, the active imaging method, which has a relatively low SNR, generates a relatively high distance resolution. To explain this phenomenon, a theory in which the distance resolution of 3D active imaging systems is determined by both the photon shot noise and the subinterval width is developed. Theoretical and experimental results differ by less than 4%.

Xiuda Zhang, Huimin Yan, Qin Zhou. Investigations of range accuracy for long-range three-dimensional active imaging[J]. Chinese Optics Letters, 2011, 9(6): 061101.

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