https://scholars.lib.ntu.edu.tw/handle/123456789/292178
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Chen, Yong-Sheng | en_US |
dc.contributor.author | Shih, Sheng-Wen | en_US |
dc.contributor.author | Hung, Yi-Ping | en_US |
dc.contributor.author | Fuh, Chiou-Shann | en_US |
dc.creator | Chen, Yong-Sheng;Shih, Sheng-Wen;Hung, Yi-Ping;Fuh, Chiou-Shann | - |
dc.date.accessioned | 2018-09-10T03:43:59Z | - |
dc.date.available | 2018-09-10T03:43:59Z | - |
dc.date.issued | 2001 | - |
dc.identifier.issn | 02628856 | - |
dc.identifier.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-0035545610&partnerID=MN8TOARS | - |
dc.identifier.uri | http://scholars.lib.ntu.edu.tw/handle/123456789/292178 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035545610&doi=10.1016%2fS0262-8856%2801%2900069-5&partnerID=40&md5=a56ec27c27cc1489705155dbf9269ce9 | - |
dc.format | application/pdf | en |
dc.format.mimetype | application/pdf | - |
dc.language | en | en |
dc.relation | Image and Vision Computing 19 (14): 1099-1110 | en |
dc.relation.ispartof | Image and Vision Computing | en_US |
dc.source | AH | - |
dc.subject | Active vision; Camera calibration; Camera parameters; Lens calibration; Motorized zoom lens | - |
dc.subject.other | Calibration; Focusing; Interpolation; Servomotors; Camera calibration; Motorized zoom lenses; Camera lenses | - |
dc.title | Simple and efficient method of calibrating a motorized zoom lens | - |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/S0262-8856(01)00069-5 | - |
dc.identifier.pmid | In this work, three servo motors are used to independently control the aperture, zoom, and focus of our zoom lens. Our goal is to calibrate, efficiently, the camera parameters for all the possible configurations of lens settings. We use a calibration object suitable for zoom lens calibration to deal with the defocusing problem. Instead of calibrating the zoom lens with respect to the three lens settings simultaneously, we perform the monofocal camera calibration, adaptively, over the ranges of the zoom and focus settings while fixing the aperture setting at a preset value. Bilinear interpolation is used to provide the values of the camera parameters for those lens settings where no observations are taken. The adaptive strategy requires the monofocal camera calibration only for the lens settings where the interpolated camera parameters are not accurate enough, and is hence referred to as the calibration-on-demand method. Our experiments show that the proposed calibration-on-demand method can provide accurate camera parameters for all the lens settings of a motorized zoom lens, even though the camera calibration is performed only for a few sampled lens settings. © 2001 Elsevier Science B.V. All rights reserved. | - |
dc.identifier.scopus | 2-s2.0-0035545610 | - |
dc.relation.pages | 1099-1110 | - |
dc.relation.journalvolume | 19 | - |
dc.relation.journalissue | 14 | - |
item.fulltext | no fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.grantfulltext | none | - |
crisitem.author.dept | Networking and Multimedia | - |
crisitem.author.dept | Computer Science and Information Engineering | - |
crisitem.author.dept | Intel-NTU Connected Context Computing Center | - |
crisitem.author.dept | MediaTek-NTU Research Center | - |
crisitem.author.dept | Biomedical Electronics and Bioinformatics | - |
crisitem.author.dept | Networking and Multimedia | - |
crisitem.author.dept | Computer Science and Information Engineering | - |
crisitem.author.dept | Center for Artificial Intelligence and Advanced Robotics | - |
crisitem.author.orcid | 0000-0002-9373-2184 | - |
crisitem.author.orcid | 0000-0002-6174-2556 | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
crisitem.author.parentorg | Others: International Research Centers | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 資訊工程學系 |
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