Slicer/Features/Middleware

Title

Middleware

Names

• session leader

• participants

Technology/Function description

• Publish subscribe ORB/ACE [Peter]
• Socket IGSTK [Junichi Patrick]

Requirements

• Reliable for command transfer (all data transferred, in order)
• Fast for tracking data transfer (only the latest coordinate is required, can lose data)
• Image transfer (500K or more)
• Data types (struct: string, integer, float)
• Data type checking (number is correctly formatted etc)
• Time out (device is down)

Would be nice to have

• Priority
• Point - multi-point data transfer

Question

• UDP - fast, no delay due to ACK packages
• TCP/IP - reliable, easy
• Security
  • malicious packets or sent by mistake
  • CRC and auth.?
  • pop up a dialog box before accepting data? (just one, to avoid flood)
  • same issues with Slicer3:Slicer_Daemon

See: discussion about data transfer

Potential application in IGT

• Tracker data transfer
• Image transfer from MRI
• Robot coordinate transfer
• Robot control
• Periferials: OpenTracker/Navitrack has 3D mouse driver etc.