3D Visualization Apparatus for Back Surface Measurement
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Solution Overview
Problem
Current three-dimensional measuring instruments face challenges in visualizing and measuring the back surface of a target object without changing its arrangement, leading to increased measurement time due to the need for coordinate system resets.
Innovation Solution
A visualization apparatus that uses a display, three-dimensional sensor, fitting unit, and display control unit to superimpose a see-through region on the three-dimensional model of the target object, allowing the back surface to be viewed from the front, with the option to transparentize regions outside the gaze area, enabling simulated visualization of the back surface shape and probe position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the arrangement of the target object is changed to measure the back surface, then the back surface can be visually recognized and measured, but the measurement time increases due to coordinate system reset
Solution Approach 1:
The patent creates a three-dimensional model (copy) of the target object that includes both front and back surface information. This virtual model allows the operator to view and measure the back surface without physically moving or reorienting the actual object, thereby avoiding coordinate system resets and reducing measurement time while maintaining full visibility of the back surface geometry
Solution Approach 2:
The patent transitions from viewing the object in physical three-dimensional space to viewing it in a virtual three-dimensional model space. By displaying the back surface information in a different dimensional context (virtual overlay), the system enables back surface visualization without requiring physical repositioning of the object or probe, thus eliminating the time loss associated with coordinate system resets
2Measurement precision
If the probe is arranged behind the target object to measure the back surface, then the back surface can be accessed, but the probe tip cannot be visually recognized
Solution Approach 1:
The patent creates a three-dimensional model of the probe in addition to the target object model. This virtual probe model is displayed overlaid on the target object model, allowing the operator to visually track the probe tip position behind the target object while maintaining measurement precision on the back surface
Solution Approach 2:
The three-dimensional model of the probe acts as an intermediary visualization tool. Instead of directly observing the physical probe tip behind the target object, the operator views the virtual probe model that represents the actual probe position, enabling continuous visual feedback without compromising measurement accuracy
3Ease of operation
If the target object is inverted to measure the back surface from the front, then the arrangement is maintained, but the coordinate system must be reset
Solution Approach 1:
The patent creates a comprehensive three-dimensional model that contains both front and back surface geometry information. This virtual model allows the system to maintain the original object arrangement while providing access to back surface measurement data through the model, eliminating the need for coordinate system resets that would otherwise be required when physically repositioning or inverting the object
Solution Approach 2:
The patent implements a dynamic coordinate system that automatically adapts to the measurement context. The coordinate system can switch between front surface and back surface reference frames without requiring manual reset, allowing seamless transition between measuring different surfaces while maintaining the original object arrangement
Data Source
AI summary
The visualization apparatus comprises: a display that enables visualization of a predetermined information by superimposing the predetermined information in a three-dimensional space; a three-dimensional sensor that detects coordinate information of objects existing in the three-dimensional space within a display range of the display; a fitting unit that sequentially acquires coordinate information of each object detected by the three-dimensional sensor, matches the coordinate information of the object with a three-dimensional model of a target object prepared in advance for each acquisition to specify the target object from among the objects, and sequentially fits the three-dimensional model to the specified target object; and a display control unit that make the display to display a back surface shape of the target object detected by the three-dimensional sensor with respect to the front in a gaze direction by superimposing and displaying a three-dimensional model corresponding to a shape viewed from the front in the gaze direction on the target object.