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Investigation of a 3D camera
KTH, School of Engineering Sciences (SCI), Applied Physics.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The feasibility of a simple and low-cost 3D time-of-flight imaging system isexperimentally investigated. Using a conventional CCD camera, a fast optoelectronic shutter and a modulated light, the distance of an object in a scene is measured. The measurements are computed using a homodyne approach.

The key component of the system is the opto-electronic shutter, for which amodulator developed by Acreo AB is used, and special attention was brought to characterize its properties. The principle has been successfully demonstrated. For a modulation frequency of 15 MHz and a modulator contrast of 3:1, the depth accuracy of the system is evaluated to 3.3 cm at worst and the repetability of the measurements to 3.6 cm on a range of 2 m. Indications to improve the system’s resolution are detailed for future work.

Place, publisher, year, edition, pages
2011. , 39 p.
Series
Trita-FYS, ISSN 0280-316X
Identifiers
URN: urn:nbn:se:kth:diva-32100OAI: oai:DiVA.org:kth-32100DiVA: diva2:408868
Educational program
Master of Science in Engineering -Engineering Physics
Uppsok
Physics, Chemistry, Mathematics
Examiners
Available from: 2011-04-05 Created: 2011-04-06 Last updated: 2011-11-09

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