3D Selector Symbol for Touch Interface Ambiguity
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Solution Overview
Problem
Existing three-dimensional display systems struggle with accurately selecting icons or symbology within three-dimensional images due to perspective ambiguity, as objects appear at different locations depending on the viewer's perspective, making standard touch screen technologies ineffective for interaction.
Innovation Solution
A display system that includes a touch-sensitive screen and a processor to render and manipulate a three-dimensional selector symbol within the image, allowing it to move and adjust its azimuth and inclination based on operator input, effectively extending the symbol into the three-dimensional space for precise selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If standard touch screen technologies are used to interact with three-dimensional images, then the interface is simple and familiar, but accurate selection of icons or symbology becomes ambiguous due to perspective changes
Solution Approach 1:
The patent applies dimensionality change by introducing a three-dimensional selector symbol that extends from the display screen surface into the three-dimensional image space. This allows the selector to maintain a fixed spatial relationship with the displayed objects regardless of viewing angle, resolving the ambiguity caused by perspective changes while preserving touch interface simplicity
Solution Approach 2:
The three-dimensional selector symbol acts as an intermediary between the operator's touch input and the three-dimensional image objects. It provides a stable reference point that translates two-dimensional touch coordinates into accurate three-dimensional object selection, eliminating the direct mapping ambiguity between touch location and object position
2Reliability
If objects are displayed in a realistic three-dimensional field, then situational awareness is enhanced, but the ability to accurately select objects becomes challenging due to perspective ambiguity
Solution Approach 1:
By extending the selector symbol into the third dimension, the system maintains accurate object selection capability while preserving the realistic three-dimensional display. The selector's three-dimensional nature allows it to intersect with objects at their correct spatial positions regardless of viewing perspective, enabling both enhanced situational awareness and reliable object selection
Data Source
AI summary
A display system for controlling a selector symbol within an image includes, but is not limited to, a display screen that is configured to detect a touch of an operator on a surface of the display screen and that is further configured to display a three-dimensional image. The display system further includes a processor that is operatively coupled to the touch screen. The processor is configured to command the display screen to display a three-dimensional selector symbol within the three-dimensional image, and to command the display screen to move the selector symbol within the three-dimensional image in a manner that corresponds with the touch of the operator.