Small Hardware Changes/Upgrades here and there
In this team talk, Sebastian gives a brief rundown of some recent hardware changes to the AXIOM Beta development kits. Changes include; different chips to reduce the Lattice FPGA programming time, a new connector to attach the main cooling fan (which is now held in place by noise reducing nylon screws), some schematic changes relating to the JTAG interface FTDI chips (to reduce power feedback), a new onboard sound buzzer. Also, to reduce mechanical stress on the electronics, we now have new precision manufactured nylon spacers to align the PCB stack at exactly the right distance.
AXIOM Beta Assembly timelapse
This timelapse (yes, it actually is sped up - don't believe the alternative facts shown in the video itself! :) ) shows the entire build process from the initial sensor cleaning, to attaching the PCB boards to each other and fixing all the mechanical components in place with the threaded rods and new nylon spacers. We finally attach the plugin modules, which are held in place by some small custom 3d printed clips.
Camera FPN Calibration Demo
We show you the entire process of capturing 64 dark frames with an AXIOM Beta developer kit and how to process and apply the Fixed Pattern Noise or Row/Coloumn Noise compensation, which is applied inside the camera by the FPGA in real time. Details about the process can be found in the wiki. We also show that after the FPN noise is removed, if we contrast enhance the image, "dynamic row noise" becomes visible. This is a CMOSIS global shutter specific phenomenon. We can already compensate for this noise type for raw still images by utilizing the so called "black columns" along the edge of the sensor - but that correction process is not part of this video and doesn't work in real time yet.
New Team Talk Naming Scheme
Note that from now on, Team Talks shot on the same day will be released under the same volume name (like Volume 12 now), but episodes released with a decimal number added to the end, e.g. Volume 12.2. The next release would be Volume 12.3, etc. until we go to the studio on a different day to shoot Volume 13.