© 2009 IDS Imaging Development Systems GmbH
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6 Camera Basics
CMOS sensors, pixel values are usually averaged; this reduces image noise.
Depending on the model,
uEye
cameras support different binning factors. Binning of horizontal and
vertical pixels can be enabled independently.
The Specifications: Sensors chapter lists the binning methods and factors the individual camera
models support.
Figure 35: Color b inning (2x)
Figure 36: Mono b inning (2x)
6.4.3
Subsampling
Subsampling is a technique that skips multiple sensor pixels when reading out image data. This
reduces the amount of data to be transferred and enables higher camera frame rates. The captured
image has a lower resolution but still the same field of view compared to the full-resolution image.
This mode can be used as a fast preview mode for high-resolution cameras.
Color subsampling as performed by most color sensors skips pixels while maintaining colors (see
illustration). For some monochrome sensors, the camera also performs color subsampling, resulting
in slight artifacts.
Monochrome sensors and some color sensors ignore the Bayer pattern and the color information
gets lost (mono subsampling).
Depending on the model,
uEye
cameras support different subsampling factors. Subsampling of
horizontal and vertical pixels can be enabled independently.
The Specifications: Sensors chapter lists the subsampling methods and factors supported by each
camera model.
Figure 37: Color sub sampling
(2x)
Figure 38: Mono sub sampling
(2x)
