The absolute sensitivity of digital colour cameras

被引：29

作者：

Sigernes, Fred ^{[1
]}

Dyrland, Margit ^{[1
]}

Peters, Nial ^{[1
]}

Lorentzen, Dag Arne ^{[1
]}

Svenoe, Trond

Heia, Karsten ^{[2
]}

Chernouss, Sergey ^{[3
]}

Deehr, Charles Sterling ^{[4
]}

Kosch, Mike ^{[5
]}

机构：

[1] Univ Ctr Svalbard UNIS, N-9171 Longyearbyen, Norway

[2] Norwegian Inst Food Fisheries & Aquaculture Res, Tromso, Norway

[3] Polar Geophys Inst, Apatity, Russia

[4] Univ Alaska, Inst Geophys, Fairbanks, AK USA

[5] Univ Lancaster, Lancaster LA1 4WA, England

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 22期

关键词：

CALIBRATION;

D O I：

10.1364/OE.17.020211

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new and improved method to obtain the average spectral pixel responsivity and the quantum efficiency of Digital Single Lens Reflex (DSLR) cameras is outlined. Two semi-professional cameras, the Nikon D300 and the Canon 40D, are evaluated. The cameras red, green and blue pixel responsivities and quantum efficiency are retrieved by illuminating an integrating sphere with a wavelength tunable monochromator. 31 intensity calibrated monochromatic spectral lines from 4000 to 7000 angstrom, with a bandpass of similar to 12 angstrom, were used as a library to solve the main equations of observation for the cameras. Both cameras have peak sensitivity in the blue and minimum sensitivity in the red. The Canon 40D has blue and green channel sensitivity close to the Nikon D300. The Canon red channel has half the sensitivity of the Nikon camera. (C) 2009 Optical Society of America

引用

页码：20211 / 20220

页数：10

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