8017035/ZMO9/2017-06-08 • © SICK AG • Subject to change without notice.
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Functions
3. Operation in “HDR”
camera mode
In “HDR” mode, the brightness from images captured at fast shutter
speeds is amplified. The amplification rate is determined by the ratio of the
shutter speeds of the two images.
(Example: If the shutter speeds are 1000 μs and 4000 μs, the amplification
rate will be 4000/1000 = ×4.)
During amplification, areas where the light level is low will be eliminated in
advance as noise. (The part marked with the “X” in the following figure.)
×4
Image
Received light waveform
Image
(Normal shutter
speed)
Image
(Slow shutter
speed)
HDR
composite
image
Adding the two images together makes it possible to measure any part
of the resultant image with the appropriate amount of light.
