Organ Surface Projection with 3D Volumetric Offset
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Solution Overview
Problem
Existing techniques fail to accurately project and display signal values inside organs, such as the brain, on their surface, leading to difficulties in associating surface regions with internal structures, and thus hinder intuitive observation of internal activities.
Innovation Solution
An information processing device with a displaced position calculation unit, spatial value acquisition unit, and spatial value display unit that calculates and displays spatial region values by offsetting points on the organ surface's shape data, allowing for the projection of internal values onto the surface for intuitive observation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional projection techniques are used to display values on the organ surface, then the display is simple and intuitive, but the association between surface regions and internal structures becomes inaccurate when viewpoint changes
Solution Approach 1:
The patent transitions from 2D surface projection to 3D volumetric coordinate transformation. By introducing a displaced position calculation unit that computes 3D coordinates offset from the surface along normal vectors, the system maintains accurate spatial correspondence between surface displays and internal structures even when viewpoint changes. This dimensional extension resolves the contradiction by preserving both intuitiveness and precision simultaneously.
Solution Approach 2:
The patent replaces conventional 2D projection mechanisms with a 3D coordinate transformation system. The displaced position calculation unit computes internal coordinates by offsetting from surface positions along normal vectors, and the spatial value acquisition unit retrieves values at these computed positions. This substitution eliminates viewpoint-dependent distortion while maintaining intuitive surface display, resolving the accuracy-intuitiveness contradiction.
2Ease of manufacture
If conventional 2D projection methods are used, then the display method is simple, but internal signal values cannot be accurately projected onto the organ surface
Solution Approach 1:
The patent enhances the projection system by adding a third dimension to the coordinate transformation process. Instead of simple 2D surface mapping, the displaced position calculation unit computes 3D internal coordinates by offsetting surface positions along normal vectors by specified distances. This dimensional enhancement enables accurate projection of internal signal values onto the surface while maintaining computational feasibility through systematic coordinate transformation.
Solution Approach 2:
The patent introduces an intermediary displaced position calculation unit that bridges surface coordinates and internal volumetric coordinates. This unit computes intermediate 3D positions by offsetting along surface normal vectors, serving as a mediator between the simple surface display and the complex internal value retrieval. This intermediary layer enables accurate projection without complicating the overall display methodology.
3Adaptability or versatility
If viewpoint position changes in conventional techniques, then flexibility in observation is improved, but the association between surface display and internal structure is lost
Solution Approach 1:
The patent stabilizes spatial associations across viewpoint changes by extending the projection system into 3D volumetric space. The displaced position calculation unit computes internal coordinates based on volumetric offsets from surface positions, creating a viewpoint-independent coordinate system. This dimensional extension ensures that surface-displayed values consistently correspond to their internal sources regardless of observation angle, resolving the flexibility-stability contradiction.
Solution Approach 2:
The patent replaces viewpoint-dependent 2D projection mechanics with viewpoint-independent 3D coordinate transformation. The system computes displaced positions using volumetric offsets along normal vectors, creating a stable spatial reference frame that remains consistent across different viewpoints. This mechanical substitution preserves spatial associations while maintaining observation flexibility.
Data Source
AI summary
An information processing device includes a displaced position calculation processing unit, a spatial value acquisition processing unit, and a spatial value display processing unit. The displaced position calculation processing unit is configured to determine displaced position data on a position displaced from an optional point on surface shape data on a surface of a measurement target in a given direction by a given distance. The spatial value acquisition processing unit is configured to acquire, based on spatial region values represented by volume data formed in a space containing a shape of the measurement target and the displaced position data, a spatial region value for a position stored in the displaced position data. The spatial value display processing unit is configured to dispose and display a display material corresponding to the spatial region value on the surface shape data.