Gaze-Aligned Input Area Setting for 3D Writing Displays
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Solution Overview
Problem
Existing digital ink systems face issues with input operability as the written content is often displayed on a section different from the user's intended display, due to a fixed virtual plane configuration in three-dimensional space.
Innovation Solution
An input system and method that includes a detection device for detecting the instruction position of an instruction device and a separate display device for displaying a space, utilizing a line-of-sight position detector to set an instruction target area based on the detected position, ensuring the display aligns with the user's intended input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed virtual plane is set in three-dimensional space, then the system structure is simple, but the written content is displayed on a section different from the user's intended display location
Solution Approach 1:
The virtual plane is transformed from a fixed configuration to a dynamic one that can be repositioned based on user line-of-sight. The plane's position and orientation are adjusted in real-time according to detected gaze direction, allowing the writing display location to dynamically match the user's intended section.
Solution Approach 2:
A line-of-sight detection mechanism provides feedback about user gaze direction to the system. This feedback loop enables the system to automatically adjust the virtual plane's position and orientation to align with where the user is looking, ensuring written content appears at the intended display location.
2Measurement precision
If the virtual plane position is fixed, then the system configuration is simple, but the display location does not match the user's intended input section
Solution Approach 1:
The system implements a feedback mechanism where line-of-sight detection continuously monitors user gaze direction and feeds this information back to adjust the virtual plane's position and orientation, ensuring precise alignment between the display location and user intent.
Solution Approach 2:
The patent replaces complex mechanical positioning systems with optical detection (line-of-sight sensing) and computational methods to achieve precise display position alignment. This substitution reduces mechanical complexity while improving positioning accuracy.
3Ease of operation
If a separate detection device and display device are used, then the system architecture is flexible, but the input operability is reduced due to misalignment between detection and display sections
Solution Approach 1:
The line-of-sight detection system provides real-time feedback that enables dynamic coordination between the separate detection device and display device. This feedback mechanism ensures that even with separate components, the display location accurately reflects the user's intended input section.
Solution Approach 2:
The system dynamically changes the parameters (position and orientation) of the virtual plane based on detected line-of-sight data. This parameter adjustment allows the separate detection and display devices to work together seamlessly, with the display adapting to match user intent.
Data Source
AI summary
Provided is an input system including an instruction device; a detection device that detects an instruction position of the instruction device; a display device that is provided separately from the detection device and that displays an image of a space; a position detector that detects, in the space, a line-of-sight position in a line-of-sight of the position detector; a processor; and a memory storing instructions, which when executed by the processor, cause the processor to set, in the space, an instruction target area including a reference position of the instruction device, based on the line-of-sight position detected by the position detector at the time of reception of a predetermined operation by the instruction device, and control the display device to display the instruction position of the instruction device in the instruction target area and on the image of the space.