Colour moire interferometry for physical sensing using a standard web camera
2010 (English)In: Measurement science and technology, ISSN 0957-0233, E-ISSN 1361-6501, Vol. 21, no 10, 105305- p.Article in journal (Refereed) Published
Digital moire patterns are an effect seen in digital pictures when a high-contrast periodic object being imaged interferes with the periodic image detector in the camera. This is often an undesired effect, which is usually removed through various filtering processes. However in this work we demonstrate the ability to use a deliberately created moire pattern to measure the physical distance of an object from a web camera with a resolution of 131 mu m. This measurement principle is then adapted to measure weight as a ubiquitous scale with a resolution of 240 mu g.
Place, publisher, year, edition, pages
Iop Publishing Ltd , 2010. Vol. 21, no 10, 105305- p.
interference, speckle and moire patterns, image forming and processing, optoelectronic device characterization, design and modelling
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-60233DOI: 10.1088/0957-0233/21/10/105305ISI: 000281787100022OAI: oai:DiVA.org:liu-60233DiVA: diva2:355866
Original Publication: Stephen Macken and Daniel Filippini, Colour moiré interferometry for physical sensing using a standard web camera, 2010, MEASUREMENT SCIENCE and TECHNOLOGY, (21), 10, 105305. http://dx.doi.org/10.1088/0957-0233/21/10/105305 Copyright: Iop Publishing Ltd http://www.iop.org/2010-10-082010-10-082015-06-01