2016 Summer Project Week/MeVisLab SEG Colors

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  Projects List

Key Investigators

• Hans Meine
• Andrey Fedorov

Project Description

Objective

• Make it possible to assign SEG colors properties in MeVisLab.
• Make it possible to read / use existing SEG colors properties in MeVisLab.

Approach, Plan

• Learn about what's necessary to do that.
  • DICOM structures
  • MeVisLab's DICOM tree representation
  • DirectDicomImport's behavior w.r.t. SEG files
  • existing infrastructure for reading / modifying DICOM tags
• Implement modules for accessing / modifying the DICOM tree for the two objectives.

Progress

• A new DICOM tree browser has been implemented. (The existing one had strange problems with showing all SegmentSequence subtags.)
• The DICOM import configuration (DirectDicomImport module) has been extended to properly import multi-segment files.
• It has been identified which data is necessary and interesting, and where it is stored:
  • ClinicalTrial{SeriesID,TimePointID,CoordinatingCenterName}
  • SegmentationType, SegmentationFractionalType (binary / fractional probability / fractional occupancy)
  • per-segment information
    • LabelID, SegmentDescription, color
    • algorithm type (automatic, semiautomatic, manual)
    • SegmentedPropertyCategoryCode, SegmentedPropertyTypeCode, SegmentedPropertyTypeModifierCode sequences
    • tracking ID / UIDs
• Implementation Plan:
  • Probably two separate modules for just displaying / editing, but sharing a lot of code (base class? Classes implementing reading / writing of fields of certain DICOM macros?).
  • GUI shared as well, but with readonly fields for the display.
  • Many tags could be added via DicomTagModify, but C++ module needed for SegmentSequence -> everything should be in C++ then.
  • Module with multiple inputs could be used for creating multi-segment SEG files.