Body Tracking with Ground Shape Mapping for Uneven Surfaces
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Solution Overview
Problem
Existing body tracking technologies struggle to accurately determine a user's pose in real-world environments with uneven ground surfaces, leading to distorted representations and compromised user experience in augmented, virtual, and mixed reality applications.
Innovation Solution
Incorporating scene understanding into the body tracking method by using a camera to obtain an environment map and tracker data to determine the ground shape and foot step information, allowing for more precise body pose estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional body tracking technology is used without scene understanding, then the tracking system is simpler and faster, but the body pose determination becomes inaccurate on uneven ground surfaces
Solution Approach 1:
The patent introduces an environment map as an intermediary element that stores ground shape information. This mediator allows the body tracking system to access terrain data without directly complex interactions between the tracker and the ground surface, enabling accurate pose determination on uneven surfaces while maintaining system modularity
Solution Approach 2:
The system performs preliminary action by pre-obtaining and storing environment maps that contain ground shape information before body tracking begins. This advance preparation allows the tracker to quickly reference pre-processed terrain data during tracking, improving accuracy without adding real-time computational complexity
2Measurement precision
If environment map and ground shape analysis are incorporated into body tracking, then body pose determination accuracy improves, but the processing time and computational load increase
Solution Approach 1:
The environment map is obtained and processed in advance before body tracking begins. By pre-processing the terrain data and storing it in an optimized format, the system eliminates the need for real-time ground shape analysis during tracking, thus improving accuracy without significantly increasing processing time
Solution Approach 2:
The patent extracts only the essential ground shape information from the environment map that is needed for body pose determination. By selecting and using only the relevant terrain features rather than processing complete environmental data, the system achieves accurate tracking while minimizing computational overhead and processing time
Data Source
AI summary
A body tracking method is provided. The body tracking method includes: obtaining an environment map of a real world around a user; obtaining tracker data from a tracker, wherein the tracker is adapted to be mounted on a foot or a leg of the user; determining a ground shape of a foot location of the user based on the environment map and the tracker data; determining foot step information of the foot based on the ground shape; and determining a body pose of the user based on the foot step information.