Design and Analysis of Filter-based Optical Systems for Spectral Responsivity Estimation of Digital Video Cameras

dc.contributor 國立臺灣師範大學機電工程學系 zh_tw
dc.contributor.author Chang, Gao-Wei en_US
dc.contributor.author Jian, Hong-Da en_US
dc.contributor.author Yeh, Zong-Mu en_US
dc.contributor.author Cheng, Chin-Pao en_US
dc.date.accessioned 2014-10-30T09:36:12Z
dc.date.available 2014-10-30T09:36:12Z
dc.date.issued 2003-09-30 zh_TW
dc.description.abstract For estimating spectral responsivities of digital video cameras, a filter-based optical system is designed with sophisticated filter selections, in this paper. The filter consideration in the presence of noise is central to the optical systems design, since the spectral filters primarily prescribe the structure of the perturbed system. A theoretical basis is presented to confirm that sophisticated filter selections can make this system as insensitive to noise as possible. Also, we propose a filter selection method based on the orthogonal-triangular (QR) decomposition with column pivoting (QRCP). To investigate the noise effects, we assess the estimation errors between the actual and estimated spectral responsivities, with the different signal-to-noise ratio (SNR) levels of an eight-bit/channel camera. Simulation results indicate that the proposed method yields satisfactory estimation accuracy. That is, the filter-based optical system with the spectral filters selected from the QRCP-based method is much less sensitive to noise than those with other filters from different selections. en_US
dc.identifier ntnulib_tp_E0402_02_020 zh_TW
dc.identifier.issn 0277-786X zh_TW
dc.identifier.uri http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/36911
dc.language en zh_TW
dc.publisher Society of Photo-optical Instrumentation Engineers (SPIE) en_US
dc.relation Jean-Pierre Chatard, Peter N. J. Dennis(Ed.). Proceedings of SPIE International Conference on Optical Systems Design. Detectors and Associated Signal Processing, 5251, 323. en_US
dc.relation.uri http://dx.doi.org/10.1117/12.513500 zh_TW
dc.rights.uri http://spie.org/ zh_TW
dc.title Design and Analysis of Filter-based Optical Systems for Spectral Responsivity Estimation of Digital Video Cameras en_US
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