Avatar Posture Correction via HMD Sensor Feedback
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Solution Overview
Problem
In virtual reality, augmented reality, or mixed reality experiences, users' avatars often assume unnatural postures when the head-mounted display (HMD) is not properly worn or positioned, leading to an uncomfortable and low-quality virtual experience for both the user and other participants.
Innovation Solution
A data replacement apparatus that acquires control data based on the position of a head-mounted device and a controller, determining if a prescribed condition is met, and replacing the control data with dummy data to prevent unnatural avatar postures, ensuring the avatar maintains a natural appearance regardless of the HMD and controller positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the avatar is controlled according to the position of the HMD and controller, then the user's movements are accurately reflected in the virtual space, but the avatar may assume unnatural postures when the HMD is not properly worn
Solution Approach 1:
The system performs preliminary detection of HMD wearing state before controlling the avatar. The detection unit checks whether the HMD is properly worn on the user's head, and only when this condition is satisfied does the control unit transmit control data to move the avatar. This preliminary check prevents unnatural avatar postures from occurring in the first place.
Solution Approach 2:
The system continuously monitors the HMD wearing state through sensors and provides feedback to the control unit. When the detection unit determines that the HMD is not properly worn or has been removed, it sends feedback signals to stop transmitting control data, thereby preventing the avatar from assuming unnatural postures due to incorrect HMD positioning.
2Adaptability or versatility
If the HMD displays a virtual space image from a first-person viewpoint, then the user experiences immersive VR, but the user cannot directly see the avatar's appearance to detect abnormalities
Solution Approach 1:
Since the user cannot visually detect avatar posture abnormalities in first-person VR view, the system implements automatic feedback through sensors. The detection unit continuously monitors HMD wearing state and provides feedback to the control unit, enabling automatic detection and correction of avatar posture issues without requiring user visual inspection.
Solution Approach 2:
The system performs self-monitoring and self-correction of avatar posture through integrated sensors and automatic control logic. The detection unit and control unit work together to automatically ensure the avatar maintains natural postures without requiring external observation or manual intervention from the user.
3Reliability
If the system continuously monitors HMD position to prevent unnatural avatar postures, then avatar posture quality is maintained, but system complexity increases
Solution Approach 1:
The HMD includes built-in sensors that automatically detect wearing state and provide data to the control unit. This self-service approach eliminates the need for external monitoring equipment or complex monitoring systems, as the HMD itself performs the detection function using its existing sensors and processing capabilities.
Solution Approach 2:
The HMD's sensors serve multiple functions: they provide both the virtual reality visual experience and the avatar posture monitoring function. By reusing the same sensors for dual purposes, the system avoids adding separate monitoring hardware, thereby maintaining simplicity while achieving reliable posture detection.
Data Source
AI summary
A data replacement apparatus according to one aspect of the present invention includes an acquisition unit, a determination unit, and a replacement unit. The acquisition unit acquires first control data having a value based on the position of a first device which can be mounted on a user's head and the position of a second device which can be gripped by a user. The determination unit determines whether or not a prescribed condition is satisfied. The replacement unit replaces the first control data with second control data when it is determined that the condition is satisfied. The second control data has a value not based on the position of the first device and/or the position of the second device.