Double region of interest mode (d), See chapter, Double region of – ALLIED Vision Technologies Bonito CL-400 200 fps User Manual

Page 40: Interest mode (d)

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Parameters and commands

Bonito Technical Manual V2.3.0

40

Send the following serial command to record and apply new correction
data. The camera answers with a new prompt sign if the command has suc-
cessfully completed. The execution lasts for the duration of some images.

>C=1[CR]

>

Use the command

C=3 to re-enable the FPN correction without acquiring

new correction data. Instead, the correction data acquired by the last
C=1 call will be used. However, correction data is not stored beyond
power loss.

Double region of interest mode (D)

In double ROI mode (

D=1) the camera outputs two equally sized regions of

interest. Both ROIs share the parameters

N and I and are output as two halves

of one image. The top half contains the lines of the primary ROI (ROI1), the bot-
tom half the lines of the secondary ROI (ROI2) accordingly.

The starting line address for ROI1 is configured using the parameter

A.

Parameter

B controls the starting line address of ROI2. Each ROI has the height

of (N + 1) lines, the resulting image has (N + 1) * 2 lines.

Parameter

D also has an influence on the number of frames per second possible.

Use the following formula to calculate the exact number:

Max fps = 1 / ((D + 1) * (N + 1) + 1 + IOD) * t

L

);

he parameters are explained in the table below

Note

The correction data is volatile. So this command should be exe-
cuted at least once after switching-on for best performance.

Parameter

Value

D

Parameter

D

N

Parameter

N

IOD

IOD=0 if Continuous mode (e.g.

M=0),

IOD=1 if not in Continuous mode

t

L

t

L

= 3 μs in single CL channel mode (e.g.

S=0),

t

L

= 1.5 μsin dual CL channel mode (e.g.

S=1)

Table 6: Parameters for fps calculation

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