3D Gesture Interface for Intuitive Virtual Object Control
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Solution Overview
Problem
Existing three-dimensional user interfaces for operating virtual objects in a stereoscopic environment lack intuitive operation methods beyond movement, making it difficult for users to understand and interact with virtual three-dimensional objects effectively.
Innovation Solution
A three-dimensional user interface apparatus that includes a three-dimensional information acquisition unit, a position calculation unit, a virtual data generation unit, a state acquisition unit, an operation specifying unit, and a display processing unit, allowing users to perform gestures with specific parts of their body to specify processes such as movement, rotation, enlargement, or reduction of virtual objects displayed in a stereoscopic manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a two-dimensional input device is used to operate three-dimensional virtual objects, then the operation method can be implemented, but the intuitiveness of the operation deteriorates
Solution Approach 1:
The patent transitions from two-dimensional input device operations to three-dimensional gesture-based operations. The depth camera captures three-dimensional hand gestures in real space, allowing users to interact with virtual objects using natural three-dimensional movements rather than converting two-dimensional mouse operations to three-dimensional space, thereby significantly improving intuitiveness.
Solution Approach 2:
The patent replaces traditional mechanical input devices (mouse, keyboard) with a depth camera-based gesture recognition system. The camera optically captures hand positions and gestures, converting physical hand movements directly into control commands for virtual objects, eliminating the need for mechanical input devices and improving operational intuitiveness.
2Adaptability or versatility
If only movement operation is provided for virtual objects, then the operation method is simple, but the functionality for comprehensive interaction deteriorates
Solution Approach 1:
The patent introduces dynamic gesture recognition that detects different hand states (open palm, closed fist, pointing) and different gesture types (move, rotate, enlarge, reduce). The system dynamically adapts the available operations based on the detected gesture, providing comprehensive functionality while maintaining simple natural hand movements as the interface.
Solution Approach 2:
The patent makes a single input device (the user's hand) perform multiple functions by recognizing different gestures. The same hand can perform movement, rotation, enlargement, and reduction operations depending on the gesture type detected, making the interaction system universal and versatile without requiring multiple specialized input devices.
3Ease of operation
If three-dimensional gesture recognition is implemented, then the intuitiveness of operation is improved, but the system complexity increases
Solution Approach 1:
The patent introduces a depth camera as an intermediary device that captures three-dimensional hand gestures and converts them into control commands. The camera acts as a mediator between the user's natural hand movements and the virtual object operations, handling the complexity of three-dimensional coordinate transformation and gesture recognition while keeping the user interface simple and intuitive.
Data Source
AI summary
A three-dimensional user interface apparatus includes a calculation unit that calculates three-dimensional position information on a three-dimensional coordinate space regarding a specific part of a target person by using three-dimensional information acquired from a three-dimensional sensor, a generation unit that generates virtual three-dimensional object data indicating a virtual three-dimensional object disposed in the three-dimensional coordinate space, a state acquisition unit that acquires state information of the specific part of the target person, an operation specifying unit that specifies a predetermined process to be performed from among a plurality of predetermined processes on the basis of a combination of the state information and a change in the three-dimensional position information, a processing unit that performs the predetermined process specified by the operation specifying unit on the virtual three-dimensional object data, and a display processing unit that displays a virtual three-dimensional object corresponding to the virtual three-dimensional object data on which the predetermined process has been performed, on a display unit.