Motion Training Device Positional Display Contrast
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Solution Overview
Problem
Existing motion training techniques struggle to effectively compare a user's body part with superimposed motion images, leading to ineffective training when used for non-missing body parts, as the images are difficult to distinguish from the actual body part.
Innovation Solution
A motion training device with a head-mounted display that allows users to visually recognize a training target site as part of their body, with motion images displayed at a different position, enabling easier comparison and including a camera for video see-through functionality to block external light and concentrate on training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If motion images are displayed superimposed on the training target site to be as realistic as possible, then the realism of motion images is improved, but the ease of comparison between the body part and motion images deteriorates
Solution Approach 1:
The patent changes the spatial dimension of motion image display from superimposition on the training target site to display at a different position (such as above or beside the body part). This dimensional change allows users to see both the actual body part and the motion images simultaneously without overlap, enabling easy comparison while maintaining realistic motion image quality.
2Ease of operation
If a head-mounted display device is used for motion training, then the portability and space requirements are improved, but the device complexity increases
Solution Approach 1:
The head-mounted display device integrates multiple functions including motion image display, camera-based real-space capture, video see-through functionality, and positional tracking into a single portable unit. This multi-functionality approach allows the device to perform various training and visualization tasks without requiring separate equipment, thereby improving portability while managing complexity through functional integration.
3Ease of operation
If an optical transmission-type display is used, then the ease of comparison between body part and motion images is improved, but the brightness and visibility of motion images may deteriorate
Solution Approach 1:
The patent employs parameter changes by adjusting the transparency and optical properties of the transmission-type display to optimize both comparison ease and image brightness. The display parameters are tuned to allow sufficient light transmission for seeing the body part while maintaining adequate brightness for clear motion image visibility, achieving a balanced state that satisfies both requirements.
4Reliability
If a video see-through display with camera is used to block external light, then the concentration on training is improved, but the device complexity increases
Solution Approach 1:
The camera-based video see-through display acts as an intermediary between the external environment and the user's view. It captures real-space images and processes them to block unwanted external light while maintaining visibility of relevant training elements. This intermediary function enhances concentration by filtering distractions while the system manages complexity through automated image processing and display integration.
Data Source
AI summary
A motion training device includes: a display on which a user can visually recognize a training target site as a part of a body part of the user in the state where motion images is displayed; and a controller which causes the display to display motion images that appears as if the training target site is moving, at a different position from a position of the training target site of the user.