Touch Screen Image Selection Using Virtual Indicators
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Solution Overview
Problem
Conventional image editing tools on touch screens are inconvenient for accurately selecting image areas due to obstruction by the user's finger, making it difficult to recognize and correctly position the selection area.
Innovation Solution
An image editing apparatus and method that uses a touch screen to generate a selection start point and trace, allowing users to select an area of interest by inputting a first touch and dragging, with optional guide lines and enhancement traces to improve accuracy and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user selects an image area by finger touch on a touch panel, then the selection operation can be performed directly on the display, but the user's view of the image is obstructed by the finger position, shape and size, making it inconvenient to clearly recognize the image to be selected
Solution Approach 1:
The patent creates a virtual copy of the finger's interaction on the display screen. Instead of using the actual physical finger that obstructs the view, the system generates a virtual selection indicator (such as a circle or rectangle) that appears on the screen at the touch location. This virtual copy allows the user to see both the selection area and the surrounding image context simultaneously, eliminating the obstruction problem while maintaining direct touch operation.
2Adaptability or versatility
If a user touches and drags to select an image area, then the selection can be made freely, but the user may not accurately see the image part obstructed by the finger, making it difficult to correctly position the touch input and move the finger in an intended direction
Solution Approach 1:
The patent implements visual feedback by displaying a dynamic selection indicator that follows the user's finger movement in real-time. As the user drags their finger across the screen, the virtual selection indicator (circle, rectangle, or other shape) updates its position and size accordingly, providing continuous visual feedback about the selection area. This allows the user to accurately control the selection without losing sight of the target area, significantly improving positioning precision while maintaining free movement capability.
Data Source
AI summary
An image editing apparatus and an image editing method for selecting an area of interest, in which a user more accurately selects an area desired to be selected using a finger by setting a position of a touch input as a selection start point for starting image selection if the user performs the touch input on a background image at the time of image editing, sets a trace generated by moving the background image or the selects start point as a selection image area, and selecting the set selection image area from the background image.