Augmented Reality Inaccuracy Calculation via Mapping Parameters
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Solution Overview
Problem
Augmented reality systems face inaccuracies in positioning virtual objects due to unknown deviations between actual and reference positions, lacking the ability to provide uncertainty statements that meet measurement standards, such as DIN 13005, which is essential for accurate measurement results.
Innovation Solution
A method to compute inaccuracy information by projecting a data model onto the image plane, using parameters from the mapping computing process, including camera calibration and tracking system data, to determine pixel-accurate deviations and uncertainties, allowing for complete measurement result indication with error values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If virtual objects are positioned in augmented reality systems using camera calibration and tracking systems, then the positioning capability is improved, but measurement precision deteriorates due to unknown deviations between actual and reference positions
Solution Approach 1:
The patent implements feedback by computing inaccuracy information from the mapping computing process parameters and feeding it back to provide uncertainty statements. The system calculates deviations between actual and reference positions using camera calibration data and tracking system parameters, then uses this feedback to quantify measurement uncertainty and improve positioning accuracy assessment.
2Measurement precision
If inaccuracy information is computed using mapping computing process parameters, then measurement precision is improved through uncertainty statements, but device complexity increases due to additional computational requirements
Solution Approach 1:
The patent applies self-service by having the mapping computing process serve dual purposes: it performs its primary function of projecting virtual objects while simultaneously generating inaccuracy information as a byproduct. The same computational parameters used for positioning are reused to calculate uncertainty statements, eliminating the need for separate measurement systems and reducing overall device complexity.
3Reliability
If complete measurement results with uncertainty statements are provided, then reliability is improved to meet DIN 13005 standards, but loss of information increases due to additional data processing requirements
Solution Approach 1:
The patent implements preliminary action by computing inaccuracy information in advance during the mapping computing process, before final measurement results are presented. By calculating uncertainty statements from camera calibration and tracking parameters beforehand, the system prepares complete measurement data that meets DIN 13005 standards without requiring additional post-processing or information loss.
Data Source
AI summary
In a method of and a system for determining inaccuracy information (600) in positioning a data model (1) of virtual information in an augmented reality system, the data model (1) is projected to the image plane of a display device (4) for mixing with visual impressions of a real environment. The inaccuracy information is calculated from parameters (10-0 to 50-2, 40, 50, 60) in a mapping computing process by means of which the data model (1) is projected to the image plane of the display device (4). It is thus possible to indicate relative precise inaccuracy information in positioning the data model in an augmented reality system.