Three-Dimensional Laser Microvision
Applied Optics, Vol. 40, Issue 11, pp. 1784-1794 (2001)
http://dx.doi.org/10.1364/AO.40.001784
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Abstract
A three-dimensional (3-D) optical imaging system offering high resolution in all three dimensions, requiring minimum manipulation and capable of real-time operation, is presented. The system derives its capabilities from use of the superstructure grating laser source in the implementation of a laser step frequency radar for depth information acquisition. A synthetic aperture radar technique was also used to further enhance its lateral resolution as well as extend the depth of focus. High-speed operation was made possible by a dual computer system consisting of a host and a remote microcomputer supported by a dual-channel Small Computer System Interface parallel data transfer system. The system is capable of operating near real time. The 3-D display of a tunneling diode, a microwave integrated circuit, and a see-through image taken by the system operating near real time are included. The depth resolution is 40 μm; lateral resolution with a synthetic aperture approach is a fraction of a micrometer and that without it is approximately 10 μm.
© 2001 Optical Society of America
OCIS Codes
(100.0100) Image processing : Image processing
(100.6740) Image processing : Synthetic discrimination functions
(100.6890) Image processing : Three-dimensional image processing
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
Citation
Hiroshi Shimotahira, Keigo Iizuka, Sun-Chun Chu, Christopher Wah, Fumie Costen, and Yuzo Yoshikuni, "Three-Dimensional Laser Microvision," Appl. Opt. 40, 1784-1794 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-11-1784
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