XR Navigation Screen Updating When Camera Views Are Obstructed
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Solution Overview
Problem
Existing XR devices face challenges in providing accurate navigation services when the camera's view is partially or fully obstructed, especially in scenarios like traffic congestion or parking lots, leading to incomplete reproduction of the driving course on the screen.
Innovation Solution
The XR device employs a method that uses GPS information from a server and stored map data to generate a navigation screen, allowing it to output a real-time AR guide even when the camera's view is obstructed by comparing driving images with map data and updating the navigation screen accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera is installed to capture the driving course, then the navigation service can be provided, but the camera view may be obstructed by peripheral devices or traffic, leading to incomplete course reproduction
Solution Approach 1:
The patent introduces map database images as an intermediary to bridge the gap between the camera's limited view and the complete driving course information. When the camera view is obstructed, the system retrieves corresponding map images from the server based on GPS coordinates, using these map images as a substitute visual reference to maintain continuous and complete navigation guidance without direct reliance on the obstructed camera feed.
Solution Approach 2:
The system performs preliminary actions by pre-fetching and storing map database images on the server before they are needed. When navigation is required, the system can immediately retrieve these pre-prepared map images based on GPS information, avoiding delays and ensuring continuous navigation service even when camera capture is compromised.
2Ease of operation
If the navigator is installed inside the vehicle, then it provides navigation functionality, but the camera view is partially covered by dashboard or bonnet
Solution Approach 1:
The patent uses map database images as an intermediary visual source that compensates for the camera's obstructed view. The system seamlessly switches between camera-captured images and map database images based on detection results, ensuring that the navigation display remains complete and accurate even when the physical camera installation position causes view obstruction.
Solution Approach 2:
The navigation system implements multi-functionality by integrating both camera-based real-time capture and map database-based virtual rendering. This dual-mode approach allows the system to adapt to different installation scenarios and environmental conditions, maintaining navigation effectiveness regardless of camera obstruction caused by dashboard or bonnet placement.
3Measurement precision
If the camera captures real-time images, then the navigation screen shows actual driving course, but the images may be blocked by other vehicles in traffic congestion
Solution Approach 1:
The patent employs map database images as an intermediary information source that provides complete and accurate road course data independent of real-time camera capture. When traffic congestion blocks the camera view, the system retrieves corresponding map images from the server, ensuring continuous access to accurate driving course information without being affected by external obstructions.
Solution Approach 2:
The system implements a feedback mechanism where the detection unit continuously monitors whether the captured image contains sufficient driving course information. When the feedback indicates that the camera view is blocked (insufficient course information detected), the system automatically switches to retrieving map database images, ensuring that navigation accuracy is maintained through adaptive response to real-time conditions.
Data Source
AI summary
A method for controlling an XR device outputting a navigation screen. The method may comprise receiving first GPS information, acquiring second GPS information corresponding to a current position of a vehicle, determining whether the first GPS information matches the second GPS information, and displaying a navigation screen based on a map DB stored in the server if the first GPS information is matched with the second GPS information. If the first GPS information is not matched with the second GPS information, the method may further comprise taking a driving image through a camera, comparing the driving image with an image of the map DB stored in the server, searching for a video frame including the most similar point from the image of the map DB, and changing the navigation screen based on the video frame searched from the map DB.