Projected Visual Object Selection Using Distance and Body-Part Sensing
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Solution Overview
Problem
Existing electronic devices struggle to accurately select and manipulate visual objects based on user interaction, leading to inefficiencies in user interface operations.
Innovation Solution
An electronic device equipped with sensors and processors that identify distances and body part directions to selectively change visual objects within a projection area, enhancing user interaction by enlarging or rearranging objects based on these measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional electronic devices display visual objects on a fixed screen, then the display area is limited to the screen surface, but the user interaction precision and selection accuracy deteriorate when the screen size is large or the user is distant
Solution Approach 1:
The patent transitions from a two-dimensional fixed screen display to a three-dimensional projection space. By projecting visual objects onto a three-dimensional surface (such as a table or floor), the system enables users to interact with objects at various distances and angles, thereby maintaining high interaction precision even when the display area is large or the user is positioned remotely.
Solution Approach 2:
The patent introduces sensors (first and second sensors) as intermediaries to detect user interactions in the three-dimensional projection space. These sensors capture position, distance, and movement data, enabling precise identification of user selections and manipulations of projected visual objects without requiring direct contact with a fixed screen.
2Measurement precision
If the system uses multiple sensors to detect user interaction in 3D space, then user interaction precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the sensor system into two functional components: a first sensor for detecting user position and distance, and a second sensor for detecting user interaction with projected objects. This segmentation allows each sensor to perform its specific function optimally while working together to achieve comprehensive three-dimensional interaction detection, managing overall system complexity through functional division.
3Measurement precision
If visual objects are projected onto a three-dimensional surface, then user selection accuracy is improved through spatial positioning, but the difficulty of detecting and measuring user interaction increases
Solution Approach 1:
The patent implements a feedback mechanism where the processor continuously receives input signals from the sensors about user position and interaction, and dynamically adjusts the projection display accordingly. This real-time feedback loop enables the system to track user selections accurately in three-dimensional space and respond appropriately, simplifying the detection of user intentions through continuous monitoring and adaptive display updates.
Data Source
AI summary
While displaying a screen including a plurality of visual objects within a projection area formed by a projection assembly, a processor of an electronic device may identify a first distance between the projection area and a user and a second distance between the user and the electronic device by using a first sensor. On the basis of identifying a body part facing the projection area by using a second sensor, the processor may select an area of the projection area toward which the body part is facing by using a length related to the first distance and the second distance. On the basis of identifying the plurality of visual objects in the selected area, the processor may change the plurality of visual objects on the basis of the length.