Head-Mounted Apparatus Motion Detection via Image Analysis
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Solution Overview
Problem
Existing head-mounted displays cannot detect user motion without requiring manual input from a controller, limiting their functionality in applications like video game interactions.
Innovation Solution
A head-mounted apparatus equipped with imaging means, first detection means, and area specifying means to capture and analyze images of the user's body, allowing for the detection of motion without controller manipulation by identifying continuous feature changes in the images captured.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual input from a controller is used to detect user motion, then detection accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically detects user motion by capturing images with the imaging unit and analyzing body portion positions without requiring manual controller input. The control unit autonomously processes image data to track body portions and determine motion states, enabling the system to serve itself rather than requiring external manual operation.
Solution Approach 2:
The patent replaces the mechanical controller-based input system with an optical imaging and automated image processing system. Instead of requiring physical controller manipulation, the system uses the imaging unit to capture visual data and the control unit to automatically analyze position changes of body portions, substituting mechanical interaction with optical-electronic detection.
2Reliability
If external controllers are required for motion detection, then detection reliability is improved, but device complexity deteriorates
Solution Approach 1:
The patent merges the imaging function and motion detection function into a single integrated system. The imaging unit, which is already part of the head-mounted display, is combined with the control unit's image processing capabilities to perform motion detection, eliminating the need for separate external controllers and reducing overall system complexity.
Solution Approach 2:
The control unit is designed to perform multiple functions: it controls the display device, processes images from the imaging unit, detects body portion positions, and determines motion states. This multi-functionality allows a single component to replace what would traditionally require separate dedicated devices, reducing system complexity while maintaining detection reliability.
Data Source
AI summary
An image captured by a camera or the like mounted to a housing to be worn on the head of a user is receded, a first image portion corresponding to a first site of the body of the user is detected from the image, and a predetermined feature amount in the detected first image portion is acquired. In addition, an area which contains the first image portion within the image and in which the predetermined feature amount is continuously changed is specified, and a second image portion corresponding to a second site of the body of the user different from the first site is detected from an image portion within the specified area.