Piranha4 8K Color Camera User's Manual
21
Teledyne DALSA
03-032-20156-00
RGBG 8 bit CL Deca, max line rate 51 kHz without AOI and 85 MHz CL clock
Note:
only 8190 pixels transmitted, no color interpolation
This timing can be used for applications that require line rates up to 51 kHz and therefore must use
Camera Link Deca mode and two cables.
Due to the bandwidth limitation of Camera Link Deca, it is only possible to output the two lines of the
color sensor—where one 8K line is green and the other 8K line is alternating red and blue pixels—as 4K
of each. This is defined as the RGBG format. The RGBG output format is not defined in the Camera Link
specification for Deca. The RGBG format is such that when using a Camera Link frame grabber
compatible with the Deca format configured for the mono standard, the R, G, B and then G pixels will be
written sequentially into the frame grabber buffer. This process simplifies the extraction of the RGBG data
from the frame grabber buffer by the host application. However, the frame grabber or host application
will need to perform the necessary red and blue interpolation to generate RGB pixel data. This
interpolation operation will increase the amount of pixel data by 50%. Line rates up to 70 kHz can be
achieved by using the Area of Interest (AOI) feature, where the smaller the AOI results in increased
potential line rates.
Note
: when using an AOI with this RGBG mode, you must consider the available (i.e. potential lack of) red
and blue pixel data at the AOI boundaries when they are performing interpolation.
