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Meadowlark Optics - Wave Plates 6/24 LB 2024

Sensors Support Low-Light Imaging

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Sandor L. Barna

One key to customer acceptance of CMOS imagers in the mobile market space is low-light performance. This is often specified in terms of the lowest light level at which the sensor produces an image with a minimally "acceptable" signal-to-noise ratio. This value is highly customer- and application-dependent, with high-end digital still cameras requiring better performance than low-end video cameras. In enhancing the signal-to-noise ratio, the designer rarely has the opportunity to improve the input signal level. The signal level at each pixel will be proportional to the scene lighting...Read full article

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    Published: November 2003
    Glossary
    signal-to-noise ratio
    The ratio of the power in a desired signal to the undesirable noise present in the absence of a signal.
    CCD products.CMOS imagersConsumerFeatureslow-end video camerasSensors & Detectorssignal-to-noise ratio

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