ALLIED Vision Technologies Goldeye P-032 SWIR - Manual (Page 57)

Image processing
Goldeye Technical Manual V2.5.0
57
Correction data
Ex factory camera specific correction data for each correction module are deter-
mined and stored in the camera so that an optimum image quality is available
at the Camera Link or Gigabit Ethernet interface. A PC with a Camera Link frame
grabber or Gigabit Ethernet interface can transmit the image data directly to
the main memory or rather to the display.
Correction sets
Several different correction sets for the two-point correction are stored inside
the camera to ensure high quality requirements. By transmitting commands
over the serial interface the user is able to activate (manually or automatically)
the correction set most suitable for the actual environment conditions of the
camera.
File system
The Goldeye xy-... camera models are equipped with a non-volatile data
memory (flash) that records configuration and correction data. The data is
managed in a minimalist file system.
Due to the file system, the following restrictions exist:
• Files are identified via a single byte. In regard to its function, this file
number is comparable to the file name (including extension) from the PC
world. Valid file numbers are between 1 (0x01) and 254 (0xFE).
• The file type can be defined via a further byte. It is an optional clustering
feature for files, but it has no relevance for the file identification.
• There is no directory structure. All files are on one single hierarchy level
within the main directory. This results in a maximum possible number of
254 simultaneously stored files, because each file number can only be
allocated once.
Ex factory the camera is usually already equipped with several files, containing
system and correction data.
A survey of the available files with correction data and possibly accompanying
parameters can be found in the individual correction data information, being
separately delivered with each camera.