Virtual Space Generation Using 3D Scan and Feature-Point Distances
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Solution Overview
Problem
Existing technologies struggle to generate a virtual space that accurately replicates the characteristics of a real space, particularly in terms of spatial consistency and projection alignment, leading to inconsistencies in projected images and video mapping.
Innovation Solution
A method involving a projection system that utilizes a 3D scanner to capture real space data, measures distances between feature points, and generates a virtual space on a computer based on this data, incorporating 3D scan information to align virtual objects with real objects, and performs geometric corrections to ensure precise projection and image capturing ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a virtual space is generated using only 3D scan information, then the generation process is simple, but the accuracy and consistency of the virtual space relative to the real space deteriorates
Solution Approach 1:
The patent segments the data collection process into two distinct parts: 3D scan information for spatial structure and distance information for metric accuracy. This segmentation allows each data type to be collected and processed independently, then integrated to create a virtual space that is both accurate and consistent with the real space.
Solution Approach 2:
The patent introduces distance information as an intermediary element that mediates between the 3D scan data and the real space characteristics. By using measured distances between feature points as a reference, the virtual space can be scaled and adjusted to accurately reflect real-world dimensions, resolving the contradiction between simplicity and accuracy.
2Manufacturing precision
If distance information measurement is added to 3D scanning, then the accuracy of virtual space generation is improved, but the time and effort required increases
Solution Approach 1:
The patent applies preliminary action by measuring distances between feature points before generating the virtual space. This pre-measurement of critical dimensional relationships allows for more accurate scaling and positioning in the virtual environment, reducing the need for iterative adjustments and corrections during the projection mapping process.
Solution Approach 2:
The patent replaces manual trial-and-error adjustment of projection mappings with an automated system that uses measured distance information to calculate and apply the correct scaling and positioning. This substitution of mechanical adjustment with computational calculation significantly reduces the time required while improving precision.
3Reliability
If manual geometric corrections are performed in real space, then projection alignment can be adjusted, but disruptions and interruptions increase
Solution Approach 1:
The patent performs all necessary geometric corrections and alignments in advance during the virtual space generation phase, using measured distance information to establish accurate spatial relationships. This preliminary configuration eliminates the need for disruptive manual adjustments during actual projection operations, ensuring continuous and reliable operation.
Solution Approach 2:
The patent creates an accurate copy of the real space's geometric relationships in the virtual environment by incorporating measured distance information. This virtual copy accurately replicates the real space's dimensions and proportions, allowing all corrections to be made in the virtual domain without affecting real-space operations, thus maintaining productivity while ensuring reliability.
Data Source
AI summary
A virtual space generating method comprises receiving an input of distance information indicating distances among at least three or more feature points measured in a real space in which the at least three or more feature points are provided; receiving an input of 3D scan information obtained by scanning the real space and a real space object provided in the real space with a 3D scanner; and generating a virtual space on the computer on a basis of the distance information inputted and the 3D scan information inputted, the virtual space including a virtual space object corresponding to the real space object.