3D Cross-Sectional Image Display via Spatial Designation
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Solution Overview
Problem
Existing cross-sectional image display technologies face difficulties in efficiently setting and consecutively displaying cross-sectional positions from multiple locations, as they require setting cutting lines in a plan view, which is not intuitive or efficient.
Innovation Solution
A cross-sectional image display apparatus and method that allows users to designate cross-sectional positions by virtually constructing a three-dimensional image in space, using a two-dimensional image presentation unit, detection unit, conversion unit, and control unit to create and display cross-sectional images based on three-dimensional image data, enabling more natural and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cross-sectional positions are designated by setting cutting lines in the plan view, then cross-sectional views can be displayed, but it becomes difficult to set cross-sectional positions consecutively and efficiently
Solution Approach 1:
The patent transitions from two-dimensional plan view cutting line designation to three-dimensional spatial designation. The cutting plane is represented by a line segment in three-dimensional space, allowing users to intuitively specify cross-sectional positions by directly interacting with the 3D model rather than projecting cuts onto a 2D plan view. This dimensional elevation enables more natural and efficient consecutive positioning.
Solution Approach 2:
The patent introduces a line segment as an intermediary representation of the cutting plane. Instead of directly manipulating complex plan view cutting lines, users interact with simplified line segments that mediate between the user's intent and the actual cross-sectional extraction. This intermediary abstraction simplifies the operation while maintaining precision.
2Manufacturing precision
If cutting lines are set in the plan view to designate cross-sectional positions, then cross-sectional images can be obtained, but the operational complexity increases
Solution Approach 1:
By moving from 2D plan view designation to 3D spatial designation, the system maintains precision through three-dimensional coordinates while reducing operational complexity. The line segment representation in 3D space provides both precision (exact position and orientation) and simplicity (intuitive visual alignment with the model).
Solution Approach 2:
The patent creates a simplified copy of the cutting plane as a line segment. Instead of requiring users to manipulate the full complexity of a planar cutting surface, the system uses a line segment copy that captures the essential positional and orientational information needed for cross-sectional extraction, thereby reducing operational complexity while preserving precision.
Data Source
AI summary
A cross-sectional image display apparatus, method, and program is capable of setting cross-sectional positions consecutively and efficiently. 3D image data is stored in a PC, a two-dimensional image of the 3D image is presented at a position detection surface of a tablet, the three-dimensional image is virtually constructed in a space above the position detection surface to have dimensions corresponding to the two-dimensional image and to be located at a position corresponding to the two-dimensional image. A plate-like display device designates the cross-sectional position at which the cross-sectional image is to be displayed in the constructed 3D image, the tablet detects the designated cross-sectional position, the PC converts the detected cross-sectional position into a cross-sectional position in a coordinate system of the 3D image and creates cross-sectional image data, and the display device uses the cross-sectional image data to display the cross-sectional image.