Exposure Time Calibration of Digital Still Camera

doi:10.7517/j.issn.1674-0475.2007.04.306

Imaging Science and Photochemistry ›› 2007, Vol. 25 ›› Issue (4): 306-310.DOI: 10.7517/j.issn.1674-0475.2007.04.306

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Exposure Time Calibration of Digital Still Camera

WANG Yu, LI Ping, WU Hou-ping, LIU Zi-long, FENG Guo-jin, ZHENG Chun-di, ZHANG Qiao-xiang

Material and Spectrophotometry Laboratory, National Institute of Metrology, Beijing 100013, P.R.China

Received:2006-07-26 Revised:2007-04-10 Online:2007-07-23 Published:2007-07-23

Abstract

Abstract: Exposure time calibration method of digital still camera(DSC) using an integrating sphere uniform source with auxiliary shutter has been discussed in this paper.Influence factors of calibration such as linearity and uniformity of the photosensor and the repeatability of the shutter were analyzed and the calibration results of two digital still cameras were given at the same time.

Key words: digital still camera(DSC), exposure time, integrating sphere uniform source, calibration

CLC Number:

TQ57

WANG Yu, LI Ping, WU Hou-ping, LIU Zi-long, FENG Guo-jin, ZHENG Chun-di, ZHANG Qiao-xiang. Exposure Time Calibration of Digital Still Camera[J]. Imaging Science and Photochemistry, 2007, 25(4): 306-310.

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Exposure Time Calibration of Digital Still Camera

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