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Non-convex polyhedral volume of interest selection
Raphael Fuchs1, Volkmar Welker, Joachim Hornegger
1Computer Graphics Lab, ETH Zürich, Switzerland. raphael@inf.ethz.ch
Summary
This study presents a new interactive method for defining and editing volumes of interest (VOI) using polyhedral bounding objects. This approach simplifies the selection of complex, non-convex, and non-connected regions for various applications.
Area of Science:
- Medical Imaging
- Computer Graphics
- Scientific Visualization
Background:
- Standard systems for defining volumes of interest (VOI) often require complex specifications.
- Defining non-convex or non-connected VOI can be challenging with traditional methods.
Purpose of the Study:
- To introduce a novel, interactive approach for specifying and editing volumes of interest (VOI).
- To enhance VOI definition capabilities beyond standard system limitations.
Main Methods:
- Utilized polyhedral bounding objects for defining VOI, allowing for non-convex shapes.
- Implemented low-level editing interactions (vertex, edge, face manipulation) as building blocks.
- Enabled flexible initialization and Boolean combinations for complex VOI construction.
Main Results:
- Simplified the selection of both convex and non-convex VOI compared to clipping plane models.
- Facilitated the creation of non-connected VOI with arbitrary complexity.
- Provided an intuitive and predictable method for defining complex VOI boundaries.
Conclusions:
- The polyhedral VOI selection technique offers an easy-to-comprehend and predictable interactive method.
- This approach significantly improves the flexibility and ease of defining complex volumes of interest.
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