BM-500
CL / BB-500
CL
- 14 -
6.1.9.
Vertical Binning
This function is only available on the BM-500CL camera.
Binning mode (Command VB) is a function where the signal charge from 2 adjacent (vertical)
pixels are added together and read out as one pixel. Binning results in half vertical resolution and
higher frame rate. By adding 2 pixels together, the sensitivity is doubled. The charge accumulated
in 2 adjacent lines is added together in the horizontal CCD register. This is done by providing two
pulses to the vertical CCD register for each line readout. Vertical binning can not be used
together with the Partial scan.
Fig. 11. Vertical Binning
6.1.10.
Decimation readout (Draft) mode
BM-500CL/BB-500CL has a decimation readout (draft) mode. 4 lines of every 16 lines are read out.
In the BB-500CL a similar scheme is applied, but 2 GB lines and 2 RG lines combined, in order to
facilitate Bayer to RGB conversion (see fig. 12). When using this mode the field of view is
maintained but the height of the image is reduced to 1/4. The frame rate is 37.54 frames per a
second.
Fig.12. Draft mode (as applied to BB-500CL)
Normal full
scanning
2 line Vertical Binning
H
H
Horizontal CCD Register
S/H
Reset
Video
Out
Xsg1
V
ert
ic
al C
CD
Re
gis
te
r
Pixel
V out
4 lines readout out of 16 lines
