Partial scan – Unibrain 501 User Manual
Page 57
Unibrain Fire-i 501/511/601/701/702/810 Operation Manual
Page 49
4.2.
Partial Scan
Cameras are defined of a certain resolution according to the image sensor while often a certain region maybe of an
interest to the user. The partial scan mode provides the function to provide output of a certain region of interest (ROI)
which may have advantage in data transfer speed resulting faster operation. As described in binning mode speed gain
would occur only in vertical resolution decrease. Partial Scan is supported only in Format 7 by setting the following
registers described in the IIDC1.31 specification. Unit size of the partial scan is described in the camera specification
which user must consider in increment configuration.
IMAGE_POSITION & IMAGE_SIZE register
Left = Hposunit * n1
Top = Vposunit * m1
Width = Hunit * n2
Height = Vunit * m2
Left + Width < = Hmax
Top + Height < = Vmax
(n1,n2, m1, m2 are integer)
0 - 7
8 – 15
16 – 23
24 - 31
Left
Top
0 - 7
8 – 15
16 – 23
24 - 31
Width
Height
Initial Values
System Dependant
Read Values
Last Update Value
Write
Effect Stored