Rangefinding system using hybrid pattern projections

Osamu Kagiyama, Yukio Sato, Hideo Saito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The practical three-dimensional measurement system with a high resolution based on a space code light pattern projection and a phase-shifted light pattern projection is presented. Three-dimensional measurement device's so-called, rangefinder, are expected to be applied in the apparel, medical and various fields. The performance of a rangefinder is evaluated by the measurements of time, depth, size, etc. The system using a space code technique can stably acquire the depth of an object although the resolution of the depth is not good because an object's space is coded in the shape of a wedge. On the other hand, in a phase shift technique, the high resolution depth of an object is able to be theoretically acquired because the object's space is divided finely by phase shifted light projection. But it is difficult to stably acquire the depth of an object because of the phase connection problem. In this paper, these problems (which are high resolution and phase connection problem) are able to be solved by both the space code technique and the phase shift technique. The effectiveness of this system is also described.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6805
DOIs
Publication statusPublished - 2008
EventThree-Dimensional Image Capture and Applications 2008 - San Jose, CA, United States
Duration: 2008 Jan 282008 Jan 29

Other

OtherThree-Dimensional Image Capture and Applications 2008
CountryUnited States
CitySan Jose, CA
Period08/1/2808/1/29

Fingerprint

rangefinding
Hybrid systems
Range finders
projection
Phase shift
dimensional measurement
high resolution
phase shift
wedges

Keywords

  • Phase shifting
  • Rangefinder
  • Space coding
  • Three-dimensional measurement

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kagiyama, O., Sato, Y., & Saito, H. (2008). Rangefinding system using hybrid pattern projections. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6805). [680507] https://doi.org/10.1117/12.767617

Rangefinding system using hybrid pattern projections. / Kagiyama, Osamu; Sato, Yukio; Saito, Hideo.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6805 2008. 680507.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kagiyama, O, Sato, Y & Saito, H 2008, Rangefinding system using hybrid pattern projections. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6805, 680507, Three-Dimensional Image Capture and Applications 2008, San Jose, CA, United States, 08/1/28. https://doi.org/10.1117/12.767617
Kagiyama O, Sato Y, Saito H. Rangefinding system using hybrid pattern projections. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6805. 2008. 680507 https://doi.org/10.1117/12.767617
Kagiyama, Osamu ; Sato, Yukio ; Saito, Hideo. / Rangefinding system using hybrid pattern projections. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6805 2008.
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