Real-time visualization of J-PET in browser

It is now possible to get a real-time view at our scanner visualization in your browser (if you are inside department local network).

The most interesting thing is how the image gets there:

  1. Data from digitizers is received by the J-PET Controller FPGA
  2. Lines-Of-Response are reconstructed in real-time
  3. Regions-Of-Response are calculated into X,Y,Z annihilation coordinates
  4. Stream of reconstructed points is forwarded from programmable logic through Xillybus to the shared DDR memory
  5. Petalinux with Ubuntu running on integrated ARM cores accesses the memory and streams the points to your browser by a NodeJS server

It is a next step in the integration of image reconstruction process within the FPGA SoC device. Now, we have a framework on which we can implement further data processing in software.

We are thankful to Bartłomiej Flak and Dr Paweł Rajda from AGH Kraków for their contribution to the J-PET project.

 

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