2013 Summer Project Week:Parameter heirarchy

• 

  Projects List

Key Investigators

• Queen's: Adam Rankin
• Queen's: Andras Lasso
• Queen's: Tamas Ungi

Objective

The goal is to develop a module that creates and utilizes a new hierarchy based on definable parameters. This will allow us to characterize data by time.

Approach, Plan

• Review existing time hierarchy discussion
• Learn technical details about hierarchies
• Discuss architecture of a flexible, abstract parameter hierarchy
• Implement said hierarchy

Progress

• Discussed approach to be taken, concerns regarding performance
• Node count can explode into the thousands, performance analysis needed
  • Initial test performance analysis run, results concerning
    • Create hierarchies with 1500 and 7000 nodes, observed
    • Create hierarchy with 250 * 5 (1 volume, 4 transforms per frame) nodes
      • Slider in widget tied to logic to replace current view volume contents with the contents of the frame indexed by slider value
        • Deep copy used
      • Allocate nodes, add to scene ~25 seconds
      • Able to drag slider, occasional stuttering
      • Run1
      • Run2

To do:

• Implement importer/exporter for MHA

Delivery Mechanism

This work will be delivered to the NA-MIC Kit as a Slicer module in the SlicerIGT extension.

References

• PLUS Toolkit
• Slicer IGT