AR Position Posture Estimation Without Special Markers
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Solution Overview
Problem
Existing AR technologies require a special marker in stadiums, making them inaccessible for environments without such markers or where installing markers is costly, preventing spectators from enjoying AR content during sports events.
Innovation Solution
A terminal device and method that estimates the absolute position posture of the device based on the correspondence between three-dimensional object data and camera images, allowing AR content to be displayed without the need for a special marker, using object data generated from various sensors and content data distributed by a server to AR glasses or smartphones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a special marker is installed in the stadium to enable AR content display, then AR content can be superimposed on camera images, but the system becomes environment-dependent and requires costly infrastructure installation
Solution Approach 1:
The patent extracts the marker dependency from the AR system by using naturally existing objects (players, balls, equipment) as reference targets instead of requiring specially installed markers. This allows the system to function in environments without artificial markers, achieving environment independence while maintaining AR content superposition capability
Solution Approach 2:
The system achieves universality by enabling AR content display to work with any object that can be detected by the camera, rather than requiring a specific marker type. The same processing pipeline can handle players, balls, equipment, or any other objects, making the system adaptable to different sports and environments without additional infrastructure
2Measurement precision
If a special marker is installed in the stadium, then AR content positioning can be achieved, but the implementation cost increases due to new infrastructure installation
Solution Approach 1:
The patent uses naturally existing objects (players, balls, equipment) that are already present in the stadium as reference targets instead of requiring expensive, specially installed markers. These objects are temporarily available during the event and naturally disappear after use, providing cost-free reference points for AR positioning while maintaining sufficient measurement precision
Solution Approach 2:
The system enables AR content positioning to use objects that are already present in the environment (players, balls, equipment) rather than requiring externally installed infrastructure. The stadium's existing elements serve the dual purpose of being the subject of the broadcast and providing reference points for AR overlay, eliminating the need for additional costly infrastructure
Data Source
AI summary
The present disclosure relates to a terminal device, a position posture estimation method, and a program that enable environment-independent display of AR content. A position estimation unit estimates an absolute position posture of an own device on the basis of a correspondence between a three-dimensional position included in object data of an object of interest to which a user pays attention and a position, on a camera image of the user, of the object of interest appearing in the camera image. The technology according to the present disclosure is applicable to, for example, an AR device that displays AR content on images of a real space.