Volumetric Rendering Transfer Function Blending via Slider Actuator
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Solution Overview
Problem
Imaging specialists face difficulties in efficiently adjusting transfer functions for volumetric renderings to achieve desired views of 3D medical data, as existing methods either restrict customization with preset buttons or become overly complex with transfer function editors, disrupting the diagnostic process.
Innovation Solution
A visualization system with a user input actuator allowing movement over defined ranges, enabling the processor to generate volumetric renderings based on specific transfer functions and their blending, providing easy customization and control without requiring constant focus on the control interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If preset buttons are used to select transfer functions, then ease of operation is improved, but adaptability deteriorates
Solution Approach 1:
The system transitions from static preset buttons to a dynamic slider control that allows continuous adjustment of transfer function parameters. The slider can be positioned at any location along its range, enabling real-time customization of volumetric rendering characteristics while maintaining ease of operation through intuitive linear input.
2Adaptability or versatility
If transfer function editors are provided for full customization, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The system extracts the essential control function from complex transfer function editors by implementing a simplified slider interface. This isolated control element provides sufficient customization capability while eliminating the complexity of full parameter editors, allowing users to adjust transfer functions without being overwhelmed by multiple controls.
3Adaptability or versatility
If complex transfer function editors are used, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent extracts and isolates the transfer function control to a single slider component, separating this function from the main visualization interface. This modular approach reduces overall system complexity by implementing control only where needed, rather than providing comprehensive editing capabilities throughout the entire system.
Data Source
AI summary
A visualization system for displaying volumetric renderings includes a display, a user input actuator that is movable over a first range, a second range, and a third range, and a processor. The second range is located between the first range and the third range. The processor is configured to generate a first volumetric rendering according to a first transfer function when the user input actuator is positioned in the first range, and generate the first volumetric rendering according to a second transfer function when the user input actuator is positioned in the third range. The second transfer function is different than the first transfer function. The processor is further configured to generate the first volumetric rendering according to a blending of the first transfer function and the second transfer function when the user input actuator is positioned in the second range, and display the first volumetric rendering on the display.