Mobile Device Navigation Using Camera Orientation Recalibration
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Solution Overview
Problem
Mobile devices used for mapping and navigation are susceptible to errors in location and sensor data, leading to significant mapping and navigational errors and user confusion.
Innovation Solution
A mobile device system that uses image data captured by cameras, combined with map information and location data, to determine and update the device's orientation and location, allowing for recalibration of internal positioning systems and generation of augmented reality navigation interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile devices use internal GPS and compass systems for navigation, then navigation functionality is provided, but location and orientation data contain errors leading to significant mapping and navigational errors
Solution Approach 1:
The patent introduces image data from cameras as an intermediary to bridge the gap between unreliable internal sensors and accurate navigation. The camera captures visual features of the environment, which are then processed to determine device orientation and location, serving as a mediator that corrects errors from GPS and compass systems.
Solution Approach 2:
The system continuously captures image data, processes it to determine device orientation and location, compares these results with data from internal sensors, and uses the discrepancies to recalibrate and correct the internal sensor readings. This closed-loop feedback mechanism progressively improves measurement accuracy over time.
2Ease of operation
If mobile devices rely on sensor data for navigation, then navigation functionality is enabled, but errors in sensor data cause user confusion and disorientation
Solution Approach 1:
The system uses camera-based orientation and location determination as feedback to continuously correct and recalibrate internal sensor data. This ensures that the navigation information presented to users is accurate and reliable, preventing confusion and disorientation even when initial sensor readings are erroneous.
Data Source
AI summary
Location mapping and navigation user interfaces may be generated and presented via mobile computing devices. A mobile device may detect its location and orientation using internal systems, and may capture image data using a device camera. The mobile device also may retrieve map information from a map server corresponding to the current location of the device. Using the image data captured at the device, the current location data, and the corresponding local map information, the mobile device may determine or update a current orientation reading for the device. Location errors and updated location data also may be determined for the device, and a map user interface may be generated and displayed on the mobile device using the updated device orientation and/or location data.