Unibrain 501 - Manual (Page 55)

Unibrain Fire-i 501/511/601/701/702/810 Operation Manual Page 47
4. Advanced Features
4.1. Binning Mode
(B/W models and Fire-i 810c Model)
Binning is defined as reading neighboring pixel and combining directly from the CCD of the camera. Binning is has an
advantage in the following situation and my further be used in various applications. Relative binning mode per camera
model is described in each camera specification.
z Low Light Operation: Combining neighboring pixel increases the area of the CCD receiving light thus may
obtain brighter picture in low light condition with possible noise reduction.
z High Frame Rate Operation: Vertical Binning accelerates the speed of CCD data transfer rate by combining
multiple vertical lines per single horizontal line of the CCD resulting in a significant gain in frame rate.
4.1.1. Vertical Binning
Vertical binning combines CCD pixels neighboring vertically to a single pixel increasing light sensitivity of the camera.
Since CCD acquire data horizontally, multiple lines are acquired in case of vertical binning which results significant
speed gain. Thus the vertical resolution is reduced and due to the increased CCD area over exposure may occur which
may require adjustment.
1x2 Vertical Binning
Example
4.1.2. Horizontal Binning
Horizontal binning combines CCD pixel neighboring horizontally to a single pixel increasing light sensitivity of the
camera. However due to the nature of CCD transferring each horizontal line at a time there is no speed gain in
horizontal binning. However light sensitivity increase may occur, due to the increased CCD area similar to vertical
binning and horizontal resolution is reduced.
2x1 Horizontal Binning
Example