AM-1600GE / AB-1600GE
18
7.
GigE Vision Streaming Protocol (GVSP)
7.1
Digital Video Output (Bit Allocation)
Although the AM-1600GE and AB-1600GE are digital cameras, the image is generated by an
analog component, the CCD sensor.
The table and diagram below show the relationship between the analog CCD output level and
the digital output.
CCD out
Analog Signal *
Digital Out
8 bit
10 bit
12 bit
Black
Setup 3.6%, 25mV
8 LSB
32 LSB
128 LSB
400mV 700mV
222
LSB
890 LSB
3560 LSB
460mV 800mV
255
LSB
1023 LSB
4095 LSB
The 10-bit digital output is set at 890 LSB as 100% video level when CCD output is 200mV. The
white clip level is set at 1023 LSB when CCD output is 230mV.
0
100%
White clip Level
C
a
me
ra
Li
n
k
OU
T
(
L
SB
)
400
460
4095
3560
128
CCD OUT (mV)
Fig.14 Digital Output
7.2
Bit Allocation (Pixel Format / Pixel Type) – AM-1600GE (monochrome)
In the GigE Vision Interface, GVSP (GigE Vision Streaming Protocol) is used for an application
layer protocol relying on the UDP transport layer protocol. It allows an application to receive
image data, image information and other information from a device.
In AM-1600GE, the following pixel types supported by GVSP are available.
With regard to the details of GVSP, please refer to GigE Vision Specification available from
AIA (
www.machinevisiononline.org
).
7.2.1
GVSP_PIX_MONO8 (8bit)
1 Byte
2 Byte
3 Byte
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Y0
Y1
Y2
7.2.2
GVSP_PIX_MONO10 (10bit)
1 Byte
2 Byte
3 Byte
4 Byte
0 1 2 3 4 5 6 7 8 9 X X X X X X 0 1 2 3 4 5 6 7 8 9 X X X X X X
Y0
Y0
Y1
Y1
Summary of Contents for AB-1600GE
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