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Linea 2K and 4K Monochrome Line Scan Camera User's Manual
03-032-20206-00
Teledyne DALSA
Area of Interest (AOI) Setup
The Area of Interest (AOI) featu re can be u sed to red u ce the am ou nt of im age-d ata ou tp u t from the
cam era. Use this featu re w hen there are areas in the im age that contain u nneed ed inform ation.
An exam p le w here you w ou ld u se this featu re is in an ap p lication that is insp ecting several sep arate d
lanes of objects w ith one cam era and the im age betw een the lanes can be ignored .
The AOI featu re allow s from one to fou r sp ecific areas of the p ixel line to be sp ecified w here im age d ata
w ill be ou tp u t. Sin ce the AOI featu re red u ces the am ou nt of d ata o u tp u t, this has the ad d itional benefit of
allow ing the cam eras to op erate at higher EXSYN C rates w hen u sing base or m ed iu m cam era link m od es.
For exam p le, in the 4k cam era m od el, if the total nu m ber of p ixels for the sp ecified AOI`s is less th an 1 K
w hen u sing base Cam era Link m od e at 77 MH z, the m axim u m EXSYN C rate can be 80 kH z; versu s 56
kH z if all 4 K p ixels w ere ou tp u t.
N ote:
The setu p of AOI is alw ays w ith resp ect to the sensor. Therefore, if you are u sing the m irroring
m od e w ith AOI, be aw are that p ixel one w ill be on the right sid e of the d isp layed im age.
In order to set up an AOI for the camera:
1.
The AOI m od e m u st first be in the off p osition.
2.
Use the AOI Cou nt to select the total nu m ber of AOIs d esired to a m ax of 4.
3.
To set u p each AOI ind ivid u ally u se the AOI Selector to p oint to the AOI to be set u p .
4.
AOI Offset X is u sed ind icate the starting p ixel of the AOI.
5.
AOI Wid th is u sed to ind icate the w id th of the AOI.
4. Select beginning of
selected area
5. Set u p w id th of
selected area
3. Select area to
set u p .
2. Set u p the nu m ber of
AOI d esired to m ax of 4.
1. Mu st be off to
set u p the AOI.