17 May 2001 Novel cross-correlation algorithm for reducing noise-related errors in array-type optical triangulation displacement sensors
Author Affiliations +
Proceedings Volume 4285, Testing, Reliability, and Applications of Optoelectronic Devices; (2001); doi: 10.1117/12.426874
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States
Abstract
Optical triangulation displacement sensors are widely used for their non-contact measurement characteristics, sub-micron order resolution, simple structure, and long operation range. However, errors originating from surface inclination, speckle effect, light source fluctuation, and detector noise limit the wider use. In order to minimize these errors, the structure for optical triangulation displacement sensors, which is composed of an incoherent source and a linear CCD, has been proposed. But using a linear CCD causes several problems in signal processing. In this paper, we propose an adequate signal processing system for the proposed structure. With the help of the proposed algorithm, the limited resolution problem of CCD can be solved.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kyung-Chan Kim, SeBaek Oh, Soo Hyun Kim, Yoon Keun Kwak, "Novel cross-correlation algorithm for reducing noise-related errors in array-type optical triangulation displacement sensors", Proc. SPIE 4285, Testing, Reliability, and Applications of Optoelectronic Devices, (17 May 2001); doi: 10.1117/12.426874; https://doi.org/10.1117/12.426874
PROCEEDINGS
7 PAGES


SHARE
KEYWORDS
Signal processing

Charge-coupled devices

Sensors

CCD image sensors

Light sources

Signal to noise ratio

Light

RELATED CONTENT

On noise in time-delay integration CMOS image sensors
Proceedings of SPIE (May 13 2016)
Four-million-pixel CCD image sensor
Proceedings of SPIE (July 01 1990)
Analysis of self-correcting active pixel sensors
Proceedings of SPIE (January 17 2005)
3.2 million pixel full frame true 2 phase CCD image...
Proceedings of SPIE (May 15 2000)

Back to Top