Stereoscopic Display Zero-Plane Selection Mechanism
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Solution Overview
Problem
Users face challenges in interacting with 3D object images displayed on 2D screens, as selecting perceived 3D objects can be counterintuitive due to spatial issues, leading to undesirable experiences such as attempting to touch spaces in front of or behind the display.
Innovation Solution
A method and system for interactive display on a touch-sensitive stereoscopic screen, where object images are arranged in a virtual space with a zero-plane coincident with the screen surface, allowing users to intuitively select objects by positioning them at the zero-plane and distinguishing selectable from non-selectable objects through visual cues like opacity and positioning along Z-axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If object images are displayed in stereoscopic 3D on a 2D screen, then the visual depth perception is improved, but the user interaction becomes counterintuitive and difficult
Solution Approach 1:
The patent introduces a zero-plane concept that maps the 3D virtual space onto the 2D screen surface, creating a reference plane where selectable objects are positioned. This allows users to interact with 3D objects using 2D touch gestures by establishing correspondence between the screen surface and specific depth positions in the stereoscopic display.
Solution Approach 2:
The zero-plane acts as an intermediary between the user's touch input on the 2D screen and the 3D object selection. By positioning selectable objects at this intermediate plane, the system mediates the interaction so that touches on the screen surface naturally correspond to selections of objects at the zero-plane depth position.
2Adaptability or versatility
If all object images are made selectable, then the functionality is improved, but the user cannot distinguish which objects are intended for selection
Solution Approach 1:
The patent applies different spatial positioning qualities to different objects based on their intended interactability. Objects designated for selection are positioned at the zero-plane with visual characteristics indicating selectability, while non-selectable objects are positioned at different depth positions, creating local differentiation that guides user interaction.
Solution Approach 2:
The patent uses visual appearance changes, including opacity and positioning variations, to indicate which objects are selectable. Objects at the zero-plane are rendered with visual properties that distinguish them from objects at other depth positions, providing clear feedback about interactability.
Data Source
AI summary
Disclosed is a method of interactive display that includes providing a touch-based display screen capable of stereoscopic displaying of object images that further includes displaying a plurality of object images on the display screen, wherein at least a first of the object images is selectable and displayed so as to appear to be located at least partially in a zero-plane of the display screen, wherein at least a second of the object images is displayed so as to appear to be located at least one of inwardly and outwardly of the zero-plane, receiving a first input at a location of the display screen substantially corresponding to the first of the object images, and identifying the first input as corresponding to the first of the object images that is selectable and taking at least one further action upon the identification.