Dynamic Coordinate System Switching for Projection Input Alignment
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Solution Overview
Problem
In environments where a user performs input operations on a projection plane, aligning the display content orientation with the user's operation orientation is challenging, especially when there is no clear operation reference in a real space.
Innovation Solution
An information processing device that switches the display coordinate system from a first to a second system based on the user's input operation, adjusting the display position or angle of the content and displaying input assist displays corresponding to the new coordinate system, facilitating pointing input operations in real space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If display content is projected on a real space surface without coordinate system adaptation, then the projection can be displayed on any surface, but the user operation becomes difficult to align with display content orientation
Solution Approach 1:
The patent implements dynamic coordinate system switching that adapts to the user's operation orientation. When the user performs input operations at different angles or positions on the projection surface, the system dynamically switches between first and second display coordinate systems to maintain proper alignment between the display content and the user's operation reference frame, resolving the contradiction between projection flexibility and operation ease.
Solution Approach 2:
The system changes display parameters (coordinate system orientation, display position, display angle) based on the detected input operation state. By switching coordinate systems and adjusting display parameters according to the user's operation direction, the patent maintains proper alignment between display content and user input across different projection surfaces and orientations.
2Stability of the object's composition
If the display coordinate system is fixed, then the display content orientation remains stable, but it becomes difficult to match the user's operation orientation in real space
Solution Approach 1:
The patent makes the display coordinate system dynamic rather than fixed. The system detects the user's input operation orientation and switches between coordinate systems accordingly, allowing the display content orientation to adapt to the user's operation reference while maintaining proper alignment and readability.
3Adaptability or versatility
If no operation reference is provided in real space, then the projection environment is flexible, but the user cannot perform accurate pointing input operations
Solution Approach 1:
The patent introduces input assist display as an intermediary element that provides operation reference information to the user. This assist display includes directional indicators and coordinate system visualizations that help the user understand the current display coordinate system orientation and perform accurate pointing operations, thereby improving measurement precision without compromising environment flexibility.
Data Source
AI summary
An information processing device according to an embodiment includes a control unit that performs: control of switching a display coordinate system of display content from a first display coordinate system to a second display coordinate system, the display content displayed on a surface of a real object by a display unit, depending on a state of an input operation of changing a position or an angle of the display content; and control of changing a display position or a display angle of the display content in accordance with the second display coordinate system and causing the display unit to display input assist display corresponding to axes of the second display coordinate system in a case where the display coordinate system is switched from the first display coordinate system to the second display coordinate system.