Advanced Features - Imi Tech Mx-xxxxG Series User's Operation Manual

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5.

Advanced Features

5.1. Binning Mode
Binning is defined as reading neighboring pixel from the CCD and combining them to create one pixel value.
Binning has an advantage in the following situations as well as in various applications. Relative binning mode per
camera model is described in each camera specification.
Low Light Operation: Combining neighboring pixels increases the area of the unit pixel receiving light

and may obtain a brighter picture in low light conditions with a possible noise reduction.
High Frame Rate Operation: Vertical Binning accelerates the speed of the CCD data transfer rate by

combining multiple vertical line per single horizontal line of the CCD; resulting in a significant gain in
frame rate
5.1.1. Full Binning
Full binning mode can be obtained by combining both vertical and horizontal binning. First horizontal pixels are
combined; followed by a vertical conjunction of these pixels. This would increase light sensitivity by a factor of 4 in
case of 2 x 2 (Horizontal x Vertical) binning. However as described above, only vertical binning would result in a
speed gain while horizontal binning gives no speed gain. Thus the speed gain result is similar to vertical binning.
Resolution in this mode would be reduced both horizontally and vertically.
5.2. Partial Scan
Cameras provide a certain resolution which is dictated by the image sensor. Often, a certain region may be of
interest to the user. Partial scan mode provides the function to capture a certain region of interest (ROI) which can
provide an advantage in data transfer speed, resulting in a faster operation. As described in binning mode, the
speed gain would occur only if vertical resolution decreases. Partial scan is only supported by setting the following
registers. Unit size of the partial scan is described in the camera specification, which the user must consider in
setting the increment configuration.
IMAGE_POSITION & IMAGE_SIZE register
Left = Hposunit * n1
Top = Vposunit * m1
Width = Hunit * n2
Height = Vunit * m2
AMAZON SERIES Operation Manual
2x2 Full Binning
Example
0 - 7 8 – 15
Left
0 - 7 8 – 15
Width
P i o n e e r i n D i g i t a l V i s i o n T e c h n o l o g y
16 – 23 24 - 31
Top
16 – 23 24 - 31
Height