AR Display Apparatus Feature Point Positioning
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Solution Overview
Problem
Existing augmented reality (AR) information sharing services face challenges in accurately displaying post data at specific indoor locations, such as servers, due to GPS position measurement inaccuracies, leading to incorrect data overlay and user dissatisfaction.
Innovation Solution
An augmented reality display apparatus and server system that analyzes image data to detect feature points of shooting targets, transmitting this information to a server for precise data overlay at the correct relative position based on shooting position and object features, ensuring accurate data placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS-based position information is used for AR overlay, then the system is simple to operate, but the position accuracy deteriorates
Solution Approach 1:
The patent introduces image data and shooting target object feature amounts as intermediary elements between the user and the AR overlay system. By detecting feature points in captured images and using them as reference markers, the system achieves precise positioning without relying solely on GPS. The server acts as an intermediary that matches shooting position information with stored post data based on these feature amounts, enabling accurate overlay placement while maintaining operational simplicity for users.
2Reliability
If only GPS position information is transmitted, then the data transmission is simple, but the ability to identify specific objects deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-storing shooting target object feature amounts and their corresponding post data on the server before actual AR display needs occur. When a user captures an image, the system extracts feature amounts from the current shot and queries the server for matching post data. This pre-prepared database of feature amounts enables reliable object identification and accurate post data retrieval without requiring complex real-time analysis, thus preserving complete feature information.
3Measurement precision
If post data is displayed based on GPS coordinates only, then the display process is simple, but the position accuracy of overlay deteriorates
Solution Approach 1:
The patent transitions from relying solely on two-dimensional GPS coordinates to incorporating image-based feature point data as an additional dimension for positioning. By detecting shooting target object feature amounts from captured images and using these visual features as reference markers, the system creates a multi-dimensional positioning approach. This allows precise determination of overlay positions by matching detected feature points with stored feature amounts, significantly improving accuracy while the server handles the processing complexity automatically.
Data Source
AI summary
Augmented reality display apparatus includes: display part; image analysis part that detects shooting target object feature amount digitizing feature point of shooting target object included in image data; and control part, wherein control part transmits post download instruction information including shooting position information relating to shooting position of image data and shooting target object feature amount to a server apparatus; and causes display part to overlay post data at relative position to shooting target object feature amount in image data displayed on the display part based on information relating to post data associated with shooting position information and shooting target object feature amount transmitted from the server apparatus. Relative position to shooting target object feature amount is position based on post position information included in information relating to post data (FIG. 13).