Triangular-range-intensity profile spatial-correlation method for 3D super-resolution range-gated imaging.

We present a triangular-range-intensity profile (RIP) spatial-correlation method for 3D range-gated imaging with a depth of super resolution. In this method, spatial sampling volumes with triangular-RIPs are established by matching laser-pulse width and sensor gate time, and then depth information collapsed in gate images can be reconstructed by spatial correlation of overlapped gate images corresponding to sampling volumes. Compared with super-resolution depth mapping under trapezoidal-RIPs, range accuracy and precision are improved, and a large range fluctuation due to noise disturbance is smoothed by noise suppression under triangular-RIPs. In this paper, a proof experiment is demonstrated with a range precision 2.5 times better than that obtained under trapezoidal-RIPs.

[1]  Zhang Xiuda,et al.  Pulse-shape-free method for long-range three-dimensional active imaging with high linear accuracy. , 2008, Optics letters.

[2]  Xiudong Sun,et al.  Gain-modulated three-dimensional active imaging with depth-independent depth accuracy. , 2009, Optics letters.

[3]  Yan Zhou,et al.  Impact of echo broadening ef fect on active range-gated imaging , 2012 .

[4]  Martin Laurenzis,et al.  3D range-gated imaging at infrared wavelengths with super-resolution depth mapping , 2009 .

[5]  P. Andersson Long-range three-dimensional imaging using range-gated laser radar images , 2006 .

[6]  J. Busck,et al.  Gated viewing and high-accuracy three-dimensional laser radar. , 2004, Applied optics.

[7]  Martin Laurenzis,et al.  Long-range three-dimensional active imaging with superresolution depth mapping. , 2007, Optics letters.

[8]  Christina A. Groenwall,et al.  Gated viewing for target detection and target recognition , 1999, Defense, Security, and Sensing.

[9]  Henning Heiselberg,et al.  Long distance high accuracy 3-D laser radar and person identification , 2005, SPIE Defense + Commercial Sensing.

[10]  Adam Deslauriers,et al.  Active 3D camera design for target capture on Mars orbit , 2010, Defense + Commercial Sensing.

[11]  Liu Yuliang,et al.  Range-Gated Laser Stroboscopic Imaging for Night Remote Surveillance , 2010 .

[12]  Frank Christnacher,et al.  A 3D Outdoor Scene Scanner Based on a Night-Vision Range-Gated Active Imaging System , 2006, Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06).

[13]  Yan Zhou,et al.  Echo broadening effect in the range-gated active imaging technique , 2009, Applied Optics and Photonics China.

[14]  Martin Laurenzis,et al.  Three-dimensional range-gated imaging at infrared wavelengths with super-resolution depth mapping , 2009, Defense + Commercial Sensing.

[15]  Martin Laurenzis,et al.  Image coding for three-dimensional range-gated imaging. , 2011, Applied optics.

[16]  Jens Busck,et al.  Underwater 3-D optical imaging with a gated viewing laser radar , 2005 .

[17]  Lester F. Gillespie,et al.  Apparent Illuminance as a Function of Range in Gated, Laser Night-Viewing Systems , 1966 .