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    Measured effects of temperature on illumination-independent camera noise

    Irie, Kenji; Woodhead, Ian; McKinnon, Alan E.; Unsworth, Keith
    Abstract
    Noise affects all captured images, regardless of the quality of the image sensor. One of the major contributors to image noise is heat within the sensor, where variations in thermally generated currents results in a fluctuation of measured pixel values. These fluctuations can severely impact on the robustness of applications that process the resultant image. To help better understand the effect that temperature has on image noise, we measured the illumination-independent (base-line) noise characteristics of 4 different industrial cameras and tracked their noise-performance from 21°C to 55°C. Results show that camera noise is highly temperature dependent, varies significantly between camera models, and can have unexpected characteristics.... [Show full abstract]
    Keywords
    camera noise; image noise; thermal noise; image processing equipment; temperature effect
    Fields of Research
    0906 Electrical and Electronic Engineering
    Date
    2009-11
    Type
    Conference Contribution - Published (Conference Paper)
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    • Lincoln Ventures [81]
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    IVCNZ.2009.5378403.pdf
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    © 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Citation
    Irie, K., Woodhead, I. M., McKinnon, A. E., & Unsworth, K. (2009). Measured effects of temperature on illumination-independent camera noise. In D. Bailey (Ed.), 2009 24th International Conference Image and Vision Computing New Zealand: IVCNZ 2009, James Cook Hotel Grand Chancellor, Wellington, New Zealand, 23-25 November 2009, conference proceedings (pp. 249-253). Piscataway, NJ: IEEE.
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