Specifications

C4-1280-GigE Camera Hardware Reference Manual Rev. 1.8 • 27
The High Dynamic Range 3D Feature (HDR-3D) of C4-
1280-GigE
One of the most powerful features of C4-1280-GigE is the HDR-3D (High Dynamic Range)
functionality, which allows to scan materials and surfaces with inhomogeneous reflection properties.
Using HDR-3D the dynamic range of image intensity is extended up to 90dB, thus avoiding intensity
saturation.
The HDR-3D comprises two independent sensor functions:
MultipleSlope Function
The aim of the MultipleSlope function is to avoid the saturation of pixels during sensor chip exposure.
In order to perform this task, threshold values for the recorded light amount and produced voltage are
defined. If within a predefined time the threshold is exceeded then the voltage of the pixel is reset to
the threshold value and the integration continues until the exposure is completed. This mode is known
as DualSlope. There is also an option of resetting the pixel voltage twice, which is called TripleSlope
mode. The reset time of DualSlope and TripleSlope mode is configured as percentage of the
integration time. The reset voltage levels are factory preset to a specific optimized value obtained from
extensive tests and should not be modified. Advanced users can modify the reset levels by changing
the XML grid visibility to “Guru”.