JAI AD-131GE, User Manual

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AD-131GE
31
Analog Signal [mV]
Black Level
1023
890
32
0
25
700
D
ig
it
al
Ou
t
[L
SB
]
White Clip Level
100% Level
800
8.3. Digital Video Output (Bit Allocation)
Although the AD-131GE is a digital camera, 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 Bayer 10-bit RGB 24-bit Bayer 8-bit
Black 0mV 33.5LSB 8LSB
150mV 700mV 890LSB 222LSB
173mV
↑
800mV 1023LSB 255LSB
The standard setting for 10-bit video level is 890 LSB. A 200 mV CCD output level equals 100%
video output.
Fig. 26 Digital Output (10 bit output)
8.3.1 AD-131GE Pixel Format / Pixel Type
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.
As for the color sensor in the AD-131GE, the following pixel types supported by GVSP are
available.
With regard to the details of GVSP, please refer to the GigE Vision Specification available from
the AIA (www.machinevisiononline.org).
8.3.1.1 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
8.3.1.2 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
8.3.1.3 GVSP_PIX_MONO10_PACKED (10 bit)
1 Byte 2 Byte 3 Byte 4 Byte
2 3 4 5 6 7 8 9 0 1 X X 0 1 X X 2 3 4 5 6 7 8 9 2 3 4 5 6 7 8 9 0 1 X X 0 1 X X 2 3 4 5 6 7 8 9
Y3
Y1
Y0
Y2