ALLIED Vision Technologies Oscar F-810 - Manual (Page 140)

Video formats, modes and bandwidth
OSCAR Technical Manual V2.4.0
140
Oscar F-810C: AOI frame rates
Frame rates differ for the progressive scan mode and the field read out mode
(interlaced mode).
Oscar F-810C: progressive scan mode
For progressive scan mode (i.e. fixed formats and Format_7, Mode_2), the
following formula applies:
The table details the frame rates for representative image heights.
Formula 10: Frame rate calculation progressive scan mode Oscar F-810C
AOI height T
frame
/ s Frame rate / fps
822 0.112 8.907
600 0.087 11.440
480 0.074 13.519
240 0.047 21.235
120 0.034 29.716
Table 59: Frame rates progressive scan mode Oscar F-810C
Figure 60: Graph of frame rate in progressive scan mode Oscar F-810C
frame rate
1
T
Ch eTrans arg
T
Dummy
T
Dump
T
Scan
+ + +
----------------------------------------------------------------------------------------------- =
frame rate
1
276µs 1246 AO_HEIGHT – ( ) x 16µs AOI_HEIGHT 128µs × + +
-------------------------------------------------------------------------------------------------------------------------------------------------------- =
Frame rate = f(AOI height)
0
5
10
15
20
25
30
35
0 100 200 300 400 500 600 700 800 900
AOI height / pixel
F
ram
e r
at
e /
f
p
s
OF-810C Progressive (Format_7, Mode_2 and all fixed modes)