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dc.contributor.authorQin, Zongen_US
dc.contributor.authorWong, Po-Jungen_US
dc.contributor.authorChao, Wei-Chungen_US
dc.contributor.authorLin, Fang-Chengen_US
dc.contributor.authorHuang, Yi-Paien_US
dc.contributor.authorShieh, Han-Ping D.en_US
dc.date.accessioned2018-08-21T05:54:32Z-
dc.date.available2018-08-21T05:54:32Z-
dc.date.issued2017-02-10en_US
dc.identifier.issn1559-128Xen_US
dc.identifier.urihttp://dx.doi.org/10.1364/AO.56.001464en_US
dc.identifier.urihttp://hdl.handle.net/11536/146083-
dc.description.abstractVisual resolution is an important specification of a surveillance camera, and it is usually quantified by linewidths per picture height (LW/PH). The conventional evaluation method adopts the slanted-edge spatial frequency response (e-SFR) and uses a fixed decision contrast ratio to determine LW/PH. However, this method brings about a considerable error with respect to subjectively judged results because the perceptibility of the human vision system (HVS) varies with spatial frequency. Therefore, in this paper, a systematic calculation method, which combines the contrast sensitivity function characterizing the HVS and e-SFR, is proposed to solve LW/PH. Eight 720P camera modules in day mode, four 720P modules in night mode, and two 1080P modules in day mode are actually adopted. Corresponding to the three modes, mean absolute error between objective and subjective LW/PH are suppressed to as low as 26 (3.6% of 720P), 27 (3.8% of 720P), and 49 (4.5% of 1080P), while those of the conventional method are 68 (9.4% of 720P), 95 (13.2% of 720P), and 118 (10.9% of 1080P).(C) 2017 Optical Society of Americaen_US
dc.language.isoen_USen_US
dc.titleContrast-sensitivity-based evaluation method of a surveillance camera's visual resolution: improvement from the conventional slanted-edge spatial frequency response methoden_US
dc.typeArticleen_US
dc.identifier.doi10.1364/AO.56.001464en_US
dc.identifier.journalAPPLIED OPTICSen_US
dc.citation.volume56en_US
dc.citation.spage1464en_US
dc.citation.epage1471en_US
dc.contributor.department光電工程學系zh_TW
dc.contributor.department顯示科技研究所zh_TW
dc.contributor.departmentDepartment of Photonicsen_US
dc.contributor.departmentInstitute of Displayen_US
dc.identifier.wosnumberWOS:000394336900027en_US
Appears in Collections:Articles