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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 11 — Apr. 10, 2001
  • pp: 1784–1794

Three-dimensional laser microvision

Hiroshi Shimotahira, Keigo Iizuka, Sun-Chun Chu, Christopher Wah, Fumie Costen, and Yuzo Yoshikuni  »View Author Affiliations


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

History
Original Manuscript: January 3, 2000
Revised Manuscript: October 10, 2000
Published: April 10, 2001

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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