Enterprise trends
What does dynamic range mean in industrial cameras
2022-10-21
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An intelligent industrial camera is not a simple camera, but a highly integrated miniature machine vision system. It integrates image acquisition, processing and communication functions into a single camera, thereby providing a multi-functional, modular, high-reliability, and easy-to-implement machine vision solution.
The dynamic range of the camera indicates the range of the light signal detected by the camera. The dynamic range can be defined by two methods. One is the optical dynamic range, which refers to the ratio of the greater light intensity at saturation to the light intensity equivalent to the noise output. Characteristic decision. The other is electronic dynamic range, which refers to the ratio between saturation voltage and noise voltage. For a fixed camera, its dynamic range is a fixed value and does not change with changes in external conditions. In terms of linear response, the dynamic range of the camera is defined as the ratio of the saturation exposure to the noise equivalent exposure: dynamic range = full well capacity of the photosensitive element/equivalent noise signal dynamic range can be expressed in terms of multiples, dB or Bit. The larger the dynamic range, the more adaptable the camera is to different light intensities.
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