Virtual Hand Control Using Line-of-Sight Inference
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Solution Overview
Problem
Existing technologies face challenges in accurately recognizing the state of a user's every finger, leading to incomplete reflection of user intention in virtual spaces, causing discomfort due to hardware constraints and recognition accuracy issues.
Innovation Solution
An information processing apparatus that includes a line-of-sight state identification part, a hand-finger state identification part, and a user-hand object control part, which work together to control a hand object representing the user's hand in a virtual space, ensuring that the hand object's state is accurately linked with the user's hand and finger states, as well as their line of sight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If hardware constraints and recognition accuracy issues are present, then the system can operate with existing technology, but the state of every finger cannot be recognized correctly
Solution Approach 1:
The patent introduces line-of-sight information as an intermediary to infer the user's intended finger state. When direct finger recognition fails or is ambiguous, the system uses eye direction data to determine which finger the user intends to operate, acting as a mediator between the user's intention and the virtual hand control.
Solution Approach 2:
The system creates a virtual copy of the user's hand in the virtual space that mirrors the real hand's state. When recognition is incomplete, the virtual hand is adjusted to match the user's intended state based on line-of-sight data, effectively copying the intended rather than just the detected finger configuration.
2Ease of operation
If only hand and finger state recognition is used, then the control system remains simple, but the user's intention cannot be fully reflected in the virtual hand object
Solution Approach 1:
The line-of-sight identification module serves multiple functions: it detects user attention, infers intended finger operations, and provides backup when finger recognition fails. This multi-functional approach enhances intention reflection without requiring separate specialized systems for each function.
Solution Approach 2:
The patent combines hand-finger state recognition with line-of-sight identification into a unified control system. The user-hand object control part integrates both data sources to determine the virtual hand's state, merging multiple input modalities into a single coherent control mechanism.
3Ease of manufacture
If the virtual hand object does not accurately reflect the user's hand state, then the system is simpler to implement, but the user experiences discomfort
Solution Approach 1:
The system continuously monitors both the user's actual hand state and line-of-sight direction, providing feedback to adjust the virtual hand's representation. This real-time feedback loop ensures the virtual hand accurately reflects the user's intended state, reducing the discomfort caused by mismatches between real and virtual hand representations.
Data Source
AI summary
An information processing apparatus is provided which identifies a state of a line of sight of a user, identifies a state of a hand and fingers of the user, and controls a hand object representing the hand of the user in a virtual space, in a manner linked with the state of the hand and fingers of the user. A state of the hand object is controlled according to the state of the line of sight of the user.