Electronic Device Location Correction Using Feature-Point Circles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing GPS location information for electronic devices is prone to errors due to atmospheric and environmental factors, such as obstacles and signal unreceptivity, leading to inaccuracies in determining the device's actual location.
Innovation Solution
An electronic device uses image capture to identify feature points and landmarks, calculates distances to these points, and generates circles with these distances as radii to determine the device's location by finding the overlap point of these circles, thereby correcting GPS errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS technology is used to obtain location information, then location information can be obtained, but the location information includes errors due to atmospheric and environmental factors
Solution Approach 1:
The patent introduces image-based feature point detection and circle intersection calculation as an intermediary method to correct GPS location errors. The system captures images, identifies feature points, calculates distances to these points, and determines location through circle intersection, using this intermediate process to refine and correct the inaccurate GPS coordinates.
Solution Approach 2:
The system implements feedback by comparing the location obtained through image analysis with the GPS-provided location, then using the image-based calculation to correct the GPS errors. The corrected location information is fed back to improve the overall location accuracy, creating a closed-loop system that continuously refines position data.
2Measurement precision
If image analysis is used to correct GPS errors, then location accuracy is improved, but device complexity increases
Solution Approach 1:
The patent makes the electronic device's camera and image processing capabilities serve multiple functions: capturing images for location determination, identifying feature points, calculating distances, and determining orientation. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while achieving improved location accuracy.
Solution Approach 2:
The system uses the electronic device's own camera and existing image processing algorithms to perform location correction, rather than relying on external correction systems or additional specialized hardware. The device serves itself by leveraging its built-in capabilities to correct GPS errors, minimizing the need for external assistance and reducing overall system complexity.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Disclosed is a method, performed by an electronic device, of obtaining location information of the electronic device, the method including obtaining at least one image captured by the electronic device, identifying a plurality of feature points included in the at least one image, obtaining a plurality of distances between the plurality of feature points and the electronic device, obtaining location information of the plurality of feature points, generating a plurality of circles having the obtained distances as radii and having the plurality of feature points as centers, based on the location information of the plurality of feature points, and obtaining location information of the electronic device based on a point where the plurality of circles overlap each other.