Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.optcom.2004.03.090
DC Field | Value | |
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dc.title | Optimal use of dynamic range of a white light video measurement system | |
dc.contributor.author | Quan, C. | |
dc.contributor.author | Tay, C.J. | |
dc.contributor.author | Wu, T. | |
dc.contributor.author | Wang, S.H. | |
dc.contributor.author | Shang, H.M. | |
dc.date.accessioned | 2014-06-17T06:30:00Z | |
dc.date.available | 2014-06-17T06:30:00Z | |
dc.date.issued | 2004-07-15 | |
dc.identifier.citation | Quan, C., Tay, C.J., Wu, T., Wang, S.H., Shang, H.M. (2004-07-15). Optimal use of dynamic range of a white light video measurement system. Optics Communications 237 (4-6) : 243-250. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2004.03.090 | |
dc.identifier.issn | 00304018 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/61016 | |
dc.description.abstract | This paper describes a method to make optimal use of the dynamic range of a white light video measurement system. Since the exposure period of a CCD camera is reduced with high frame rate, dynamic measurement with a short exposure is intrinsically light intensity starved. Thus insufficiency in light intensity may introduce underexposure problem and leads to poor image quality. To overcome this problem, we have developed a simple method which enhances the light intensity detected by a high-speed camera using a white light source (WLS). As an example, we have implemented the system for vibration measurement using a liquid crystal display (LCD) projector and a high-speed camera. By incorporating the WLS, the measurement speed of the camera is effectively increased by a factor of 6. Discrepancy in the measured vibration amplitude is less than 2%. This experimental study shows a clear demonstration of the limitations of the performance of a CCD camera and the importance of matching the intensity of the image to be analyzed to the characteristics of the detector. © 2004 Elsevier B.V. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.optcom.2004.03.090 | |
dc.source | Scopus | |
dc.subject | CCD sensor | |
dc.subject | Dynamic range of detector | |
dc.subject | Fringe projection | |
dc.subject | High-speed camera | |
dc.subject | In situ measurement | |
dc.subject | White light source | |
dc.type | Article | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1016/j.optcom.2004.03.090 | |
dc.description.sourcetitle | Optics Communications | |
dc.description.volume | 237 | |
dc.description.issue | 4-6 | |
dc.description.page | 243-250 | |
dc.description.coden | OPCOB | |
dc.identifier.isiut | 000222376700003 | |
Appears in Collections: | Staff Publications |
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