Hi Nick,

I believe it also needs other boards - I need to check, these boards were made 
before we started wiki.elphel.com and put there documentation. These boards 
docs are here:

The 323 cameras used older 10313 boards (2 of them as the bandwidth of the 
older ETRAX processor was insufficient to provide required 1/1.5s frame rate.
It is possible to build model 363 camera that uses 1 10353 instead of the 2 
10313 - https://wiki.elphel.com/wiki/353_legacy
We do have 10353 boards, but not the other ones. And have one 363 camera so we 
can probably check what software is there

323 cameras were operated with JP4 encoding 
(https://community.elphel.com/jp4/jp4demo.php) that was developed specifically 
for that purpose - no de-Bayer in the camera. The same was used in the Street 
View R5 (https://en.wikipedia.org/wiki/Google_Street_View), it is shown on the 
picture there called "A Google Street View trike" - large black octagon that 
provided first high-res imagery.
 And we still use JP4 this format in all our current cameras. Internally it 
uses the same JPEG engine that we implemented in the FPGA, just reorders 
pixels. The JPEG quality can be set to any value, including 100%


---- On Wed, 15 Apr 2020 00:42:28 -0600 Nick Duvoisin 
<mailto:nduvoi...@gmail.com> wrote ----


I recently ordered a sensor board from the Elphel 323 camera off Ebay and had a 
few questions about getting it up and running. The board has the Kodak KAI11000 
CCD sensor and has model number 1A20324 Rev "A".  I'm a software engineer, so 
you can be technical in your responses.

This particular sensor board contains both the FPGA-based timing/interface 
module and the analog sensor front-end, correct? (I can see a Xilinx Spartan 
FPGA on it)

>From a hardware standpoint, all I need to create a functioning camera is a 
>10353 processor board, power supply, and injector cable, correct? (besides a 
>housing, lens mount, and lens)

Do you still sell the 10353 processor board, or will I have to have one made 
from the Gerber file and parts list?

For the software, it looks like the x353 repository on GitHub contains the 
Verilog to create the BIT file for the FPGA.  But where can I find the 
Linux-based webserver software that allows me to control the camera over 
Ethernet?  It looks like the linux-elphel repository contains this software for 
the 10393 board only.

My ultimate goal is to create a camera based on a monochrome full-frame CCD 
sensor that does not apply a demosaicing  algorithm to the raw pixel data.  
Much like a Leica M Monochrom, but with a Canon EF lens mount.  I realize this 
will take a long time to complete, but I'm looking forward to the challenge and 
learning more about how image sensors work!



Support-list mailing list 
Support-list mailing list

Reply via email to