Gaze-Guided VR Ink Input Area for Accurate Target Positioning
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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 section due to a fixed virtual plane, leading to a loss of user input operability.
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 an image of a space, utilizing a line-of-sight position to set an instruction target area and control the display of the instruction position based on the detected line-of-sight position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed virtual plane is set for displaying written content, then the display structure is simple, but the written content is displayed on a section different from the user's intended section, reducing input operability
Solution Approach 1:
The virtual plane is transformed from a fixed structure to a dynamic one that can be repositioned. The system detects the user's line-of-sight position and dynamically adjusts the virtual plane's location to include the reference position of the instruction device, ensuring written content appears in the user's intended section while maintaining operational simplicity.
Solution Approach 2:
The system incorporates feedback by detecting the user's line-of-sight position and using this information to adjust the virtual plane's position. This closed-loop feedback mechanism ensures the displayed content aligns with the user's intended section, resolving the contradiction between simple display structure and high input operability.
2Device complexity
If the detection device and display device are integrated, then the system structure is simple, but the written content may not be displayed on the intended section when devices are separately provided
Solution Approach 1:
When the detection device and display device are separately provided, the system uses the detected line-of-sight position as an intermediary to bridge the two devices. This intermediary information enables accurate positioning of the virtual plane on the display device, ensuring written content appears in the intended section despite the separate device configuration.
Solution Approach 2:
The patent replaces mechanical integration of devices with an optical/information-based solution. By using line-of-sight detection and virtual plane positioning, the system achieves precise coordination between separate detection and display devices without requiring physical integration, maintaining measurement precision while allowing device separation.
Data Source
AI summary
An input system includes an instruction device; a detection device which, in operation, detects an instruction position of the instruction device; a display device provided separately from the detection device, wherein the display device, in operation, displays an image of a virtual reality space; a line-of-sight sensor which, in operation, detects a gaze position of a user within the virtual reality space; and a processor that, in operation: sets an instruction target area within the virtual reality space, based on the gaze position detected by the line-of-sight sensor at a time at which a predetermined operation by the instruction device is received, wherein the instruction target area includes a reference position of the instruction device, and controls the display device to display on the virtual reality space a result of drawing on the detection device by the instruction device relative to the instruction target area.