Piranha Color Camera User’s Manual 34
DALSA 03-032-10211-01 5/9/2007
Example:
set 400.5
3.11 Spatial Correction
Spatial Correction and Trilinear Sensor Design
The trilinear sensor has three color lines do not share a common optical axis. This
results in the three color lines imaging three separate object points.
As a result, the color images need to be stored, delayed and recombined to properly
reconstruct the color image. This is referred to as spatial correction.
Blue
Green
Red
Sensor
Object
As the object travels along the web, the object passes the three color lines at different points in time.
As a result, the camera uses spatial correction to reconstruct the image.
Direction of object movement.
The Piranha Color sensor uses DALSA’s proprietary design to minimize the center to
center spacing to 30 µm (4k) or 42 µm (2k).
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