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EMCCD color correction based on spectral sensitivity analysis

Title
EMCCD color correction based on spectral sensitivity analysis
Authors
Son, JonginKang, MinsungMin, DongboSohn, Kwanghoon
Ewha Authors
민동보
Issue Date
2016
Journal Title
MULTIMEDIA TOOLS AND APPLICATIONS
ISSN
1380-7501JCR Link

1573-7721JCR Link
Citation
MULTIMEDIA TOOLS AND APPLICATIONS vol. 75, no. 13, pp. 7589 - 7604
Keywords
Color correctionEMCCDSpectral sensitivity
Publisher
SPRINGER
Indexed
SCIE; SCOPUS WOS
Document Type
Article
Abstract
The sensor response function of a color camera is very essential to understand an overall camera imaging pipeline and to process captured images. It is also true when we characterize underlying imaging behaviors of the electron multiplying charge coupled device (EMCCD) camera, which was recently proposed to acquire color images in low-light-level conditions. Unlike existing CCD cameras, the EMCCD camera contains partially uni-modal spectral sensitivity functions (SSFs), some of which consists of two base (bi-modal) functions, thus often leading to a serious color distortion in existing characterization techniques. To address this problem, we propose a novel method that corrects output colors of the EMCCD camera by analyzing its partially uni-modal characteristics. Specifically, our goal is to correct such color distortion by adjusting bi-modal SSFs to be uni-modal. We remove the secondary region of bi-modal channels using a pre-calculated spectral sensitivity of the EMCCD camera. Experimental results demonstrate that the proposed method reduces the color distortion as well as enlarges a color gamut, which is crucial to color reproduction.
DOI
10.1007/s11042-015-2682-6
Appears in Collections:
엘텍공과대학 > 컴퓨터공학과 > Journal papers
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