Digital Video Output (Bit Allocation); Ad-131Ge Pixel Format / Pixel Type; Gvsp_Pix_Mono8 (8Bit); Gvsp_Pix_Mono10 (10Bit) - JAI AD-131GE User Manual

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
Black
150mV
173mV↑
The standard setting for 10-bit video level is 890 LSB. A 200 mV CCD output level equals 100%
video output.
1023
890
32 Black Level
0
25 Analog Signal [mV]
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
Y0
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
8.3.1.2

GVSP_PIX_MONO10 (10bit)

1 Byte
Y0
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
8.3.1.3

GVSP_PIX_MONO10_PACKED (10 bit)

1 Byte 2 Byte
Y0
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
AD-131GE
Analog Signal
0mV
700mV
800mV
White Clip Level
100% Level
800
700
2 Byte
Y1
2 Byte
Y0
Y1
Bayer 10-bit
33.5LSB
890LSB
1023LSB
Fig. 26 Digital Output (10 bit output)
3 Byte
Y2
3 Byte
Y1
3 Byte
Y2
31
RGB 24-bit Bayer 8-bit
8LSB
222LSB
255LSB
4 Byte
Y1
4 Byte
Y3