AR Lane Guidance Overlay for Precise In-Vehicle Navigation
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Solution Overview
Problem
Existing navigation systems fail to provide precise information on the driving lane, including lane geometry, boundaries, types, and speed limits, and are prone to inaccuracies due to low precision maps and sensor errors.
Innovation Solution
A method and device that utilize augmented reality to superimpose precise lane information, such as boundaries, types, and speed limits, by transforming lane markings from a digital map's coordinate system to a camera's system and overlaying them on real-time images using a semi-transparent guide sign.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional map navigation is used, then users can obtain navigation information, but users need to frequently switch between map and video streams which reduces safety and convenience
Solution Approach 1:
The patent combines the navigation map and video stream into a single unified display interface. The map is overlaid with video feed, road markings, and navigation instructions in one integrated view, eliminating the need for users to switch between separate applications or screens. This merging of multiple information sources into a single composite display directly resolves the contradiction by providing both navigation and video viewing simultaneously without requiring frequent switching.
Solution Approach 2:
The patent transitions from a traditional 2D map view to a pseudo-3D or augmented reality dimension by overlaying video feed and navigation elements on the map. This dimensional enhancement allows users to perceive depth, perspective, and spatial relationships more naturally while maintaining the navigational information, thereby improving ease of operation without requiring additional time for interpretation or switching between views.
2Loss of information
If navigation information is displayed on traditional map, then users can see route guidance, but it lacks real-world context and immersive experience
Solution Approach 1:
The patent introduces video feed as an intermediary layer between the user and the navigation map. This video stream acts as a mediator that provides real-world visual context, showing actual roads, landmarks, and environmental features alongside the navigational overlay. This intermediary element enriches the information available to users without requiring complex additional devices, as the video feed integrates seamlessly with the existing map display system.
Solution Approach 2:
The display system is designed to serve multiple functions simultaneously: it displays the navigation map, overlays video feed for real-world context, shows road markings, and provides turn-by-turn instructions all in one unified interface. This multi-functionality approach eliminates the need for separate devices or applications for each function, thereby reducing overall system complexity while enhancing the availability of real-world context information.
3Reliability
If separate applications are used for map and video, then functionality is maintained, but user attention is divided and safety is compromised
Solution Approach 1:
The patent merges the navigation application and video streaming application into a single integrated application. This consolidation allows both map navigation and video viewing to occur simultaneously within one interface, eliminating the need for users to switch between multiple applications. By combining these functions, the system improves safety by maintaining constant situational awareness while reducing the cognitive load and attention switching required when using separate applications.
Solution Approach 2:
The unified application is designed to perform multiple functions concurrently: navigation routing, map display, video streaming, and real-time overlay rendering. This multi-functional design replaces what would traditionally require separate applications, thereby improving reliability and safety by keeping all functions accessible in one interface while actually reducing the number of applications needed to achieve the same functionality.
Data Source
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AI summary
Method for displaying lane information for a vehicle, comprising: obtaining (11) a digital map; defining (12) localization information of the vehicle; obtaining (13) a route plan of the vehicle; determining (14) a driving lane according to the localization information of the vehicle and the route plan of the vehicle; obtaining (15) coordinates information of lane markings of the driving lane from the digital map; receiving (16) image data from a camera mounted on the vehicle; transforming (17) the lane markings of the driving lane from a coordinate system of the digital map to a coordinate system of the camera; generating (18) a lane guide sign indicating the lane markings of the driving lane in the coordinate system of the camera based on the lane markings of the driving lane transformed to the coordinate system of the camera; superimposing (19) the lane guide sign of the lane markings of the driving lane on the image data received from the camera.