Coordinate Transformation for Virtual to Real Space Mapping
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Solution Overview
Problem
Conventional surveying techniques, such as photogrammetry and laser surveying, are unable to accurately replace position coordinates in a virtual three-dimensional space with latitude, longitude, and altitude information in a real space through easy operation.
Innovation Solution
A device, method, and program for measurement processing that includes a camera unit for imaging a real space, an augmented reality display unit for superimposing virtual three-dimensional data over the real space, a position coordinate acquisition unit for obtaining measurement points from a position-measuring device, and a coordinate transformation unit that transforms the virtual space coordinates into real space coordinates using a predetermined transformation equation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional surveying techniques (photogrammetry or laser surveying) are used to replace position coordinates in virtual space with real space coordinates, then measurement precision is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The patent introduces a position-measuring device (such as a smartphone with GPS receiver) as an intermediary tool that captures both image data and position coordinate data simultaneously. This mediator bridges the gap between virtual space (3D model coordinates) and real space (latitude, longitude, altitude) without requiring complex surveying equipment or techniques.
Solution Approach 2:
The patent replaces complex mechanical surveying systems (photogrammetry equipment, laser surveying instruments) with an information-based system using mobile computing devices. The smartphone's camera and GPS receiver substitute for specialized surveying machinery, dramatically simplifying the measurement process while maintaining coordinate accuracy.
2Measurement precision
If conventional surveying techniques are used to achieve accurate coordinate replacement, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The position-measuring device performs self-service by automatically capturing both image data and position coordinate data simultaneously. The device's integrated GPS receiver and camera work together autonomously to record the necessary information without requiring manual intervention or specialized surveying operations from the user.
Solution Approach 2:
The patent merges the imaging function (camera) and position measurement function (GPS receiver) into a single integrated device. This combination allows simultaneous capture of visual and spatial data, eliminating the need for separate surveying operations and simplifying the overall measurement process.
3Measurement precision
If special surveying techniques are required for coordinate replacement, then measurement precision is improved, but productivity decreases
Solution Approach 1:
The patent enables continuous data capture by having the position-measuring device record both image and position coordinate data simultaneously throughout the surveying process. This continuous action eliminates the need for intermittent, discrete surveying operations, thereby improving productivity while maintaining measurement precision.
Data Source
AI summary
To accurately replace the position coordinate in a virtual space composed of three-dimensional data with latitude, longitude, and altitude information in a real space. The device for measurement processing images a real space by the camera unit; superimposes virtual space indicating the imaged real space by three-dimensional data on the imaged real space and displays the superimposed spaces; acquires a measurement point from a position-measuring device measuring a latitude, a longitude, and an altitude; images the position-measuring device, associates the position coordinate in the virtual space of the imaged position-measuring device with the position coordinate of the acquired measurement point in the real space; and transforms the coordinate of the three-dimensional data to the position coordinate in the real space by a predetermined transformation equation.