Head-Mounted Device Motion Detection Using Dual Imaging Angles
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Solution Overview
Problem
Head-mounted devices, such as displays, struggle to detect user motion efficiently without relying on external controllers, as they primarily rely on controller inputs for motion detection.
Innovation Solution
A head-mounted device equipped with a housing, first and second imaging means, detection means, and estimation means that captures images from different angles, detects body portions, and estimates the possible existence range of user body parts within the image, allowing for motion detection without controller operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If motion detection is performed using only controller input, then device complexity is reduced, but measurement precision of user motion deteriorates
Solution Approach 1:
The system divides motion detection into two segments: controller input detection and image-based motion detection. The image processing unit segments the user's body in images and tracks motion independently, then combines this with controller input to achieve comprehensive motion detection without requiring a single complex detection system
Solution Approach 2:
The system introduces an intermediary approach by using image processing as a mediator between the controller and the game system. The image processing unit captures and analyzes user motion through images, serving as an intermediate detection method that complements controller input without requiring direct complex sensor integration
2Measurement precision
If multiple imaging means are used to capture images from different angles, then measurement precision of user motion is improved, but device complexity increases
Solution Approach 1:
The imaging means serves multiple functions: capturing user motion for detection, providing visual feedback to the user, and enabling motion tracking from different angles. This multi-functionality reduces the need for separate dedicated components for each function, thereby managing device complexity while improving measurement precision
Solution Approach 2:
The system merges the imaging function with the display function by presenting captured images back to the user. This combination allows the imaging means to serve dual purposes: motion detection and user feedback, reducing overall system complexity while maintaining multiple imaging capabilities for improved measurement precision
Data Source
AI summary
Provided is a head-mounted device that includes a housing, first imaging means, and second imaging means. The housing is to be mounted on the head of a user. The first and second imaging means are mounted on the housing to capture images from different angles of view. The head-mounted device receives an image captured by the first imaging means, detects an image portion corresponding to a body portion of the user from the received image, and estimates, based on information indicative of the detected image portion, a possible existence range of a predetermined part of the body of the user within an image captured by the second imaging means.