HMD Marker Control via Six-Axis Sensor Mode Switching
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Solution Overview
Problem
Head-mounted display devices often require users to maintain unnatural postures to operate markers, leading to reduced operability and convenience due to the need for continuous head tilting and movement to accurately position markers.
Innovation Solution
A head-mounted display device with a display control section that switches between two operation modes, allowing the marker to be moved in different forms based on detected user operations, including head movements and interactions with an operation section, to improve positioning accuracy and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user operates the marker by continuously tilting the head to move it to the target position, then the marker positioning accuracy is improved, but the user must maintain an unnatural posture and the operability deteriorates
Solution Approach 1:
The system dynamically switches between multiple operation modes (first operation mode for natural head movement and second operation mode for fixed-position operation) based on the current operational state. This allows the marker positioning system to adapt between different user interaction styles, maintaining accuracy while improving ease of operation by providing natural head movement as the primary mode.
Solution Approach 2:
The system changes the operational parameters by switching between different operation modes with distinct characteristics. In the first operation mode, the marker responds to head movements with natural correspondence. In the second operation mode, the marker responds to operation section inputs with fixed-position correspondence. This parameter switching resolves the contradiction by allowing users to choose the most comfortable interaction mode.
2Ease of operation
If the operation section is not fixed, then the user can operate the marker more naturally, but it becomes difficult for the user to move the marker as imaged by the user
Solution Approach 1:
The system dynamically adapts the marker movement based on the operation mode. When the operation section is not fixed and the user operates naturally with head movements, the system activates the first operation mode which ensures the marker moves as imaged by the user. This dynamic adaptation resolves the contradiction by providing natural operation with accurate positioning feedback.
Solution Approach 2:
The system provides visual feedback through the marker position on the display. In the first operation mode, the marker's movement is directly correlated with head movement, providing immediate visual feedback that helps users accurately position the marker. This feedback mechanism ensures that even when the operation section is not fixed, users can maintain accurate positioning control.
3Adaptability or versatility
If the system provides multiple operation modes, then the operability and convenience of use are improved, but the device complexity increases
Solution Approach 1:
The operation section serves multiple functions by supporting both fixed-position operation (second operation mode) and non-fixed natural operation (first operation mode). This multi-functionality is achieved through a single operation section that can be used in different operational contexts, reducing the need for separate controls for each mode and thereby limiting the increase in device complexity.
Solution Approach 2:
The system preliminarily determines which operation mode to activate based on the operational state before executing the marker movement. By pre-establishing the operation mode selection logic, the system avoids complex real-time decision-making during marker positioning, thereby managing device complexity while providing versatile operation modes.
Data Source
AI summary
An HMD includes an image display section configured to display a display image in a display region to be recognizable together with an outside scene, a display control section configured to cause the display section to display, in the display region, a pointer indicating a pointed position, and a six-axis sensor and a detection control section configured to detect operation. The display control section switches a first operation mode for moving, according to the operation detected by the six-axis sensor and the detection control section, a position of the pointer to correspond to the outside scene and a second operation mode for moving, according to the operation detected by the six-axis sensor and the detection control section, the position of the pointer in a form different from the movement corresponding to the outside scene.