Image Display Control System Tap Drag Region Segmentation
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Solution Overview
Problem
In touch-based user interfaces, users often unintentionally scroll through lists when attempting to select an item due to the ambiguity between tap and drag operations, leading to unintended processes and reduced operability.
Innovation Solution
An image-display control system that defines distinct regions on the screen for tap and drag operations, allowing users to select items by tapping within the designated tap region and scroll by dragging within the scroll region, improving user intent recognition and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a threshold-based distinction between tap and drag operations is used, then the system can recognize different user intentions, but the operability deteriorates when the threshold is set too high causing drag operations to be misjudged as tap operations
Solution Approach 1:
The display area is divided into multiple operation regions (first operation region for tap operations, second operation region for drag operations). This segmentation allows the system to provide different operational functionalities in different spatial zones, enabling accurate distinction between tap and drag operations without relying solely on movement threshold detection.
2Reliability
If the threshold for distinguishing tap and drag operations is increased to prevent erroneous judgment, then tap operations are more reliably recognized, but drag operations with small movement amounts are misjudged as tap operations
Solution Approach 1:
Different operation regions are assigned different functional qualities: the first operation region is optimized for tap operations while the second operation region is optimized for drag operations. This local differentiation allows each region to specialize in its intended operation type, improving both reliability for tap operations and adaptability for drag operations with various movement amounts.
Data Source
AI summary
An image-display control system including: a display having a display area; a touch panel; a processor; and a memory storing instructions that, when executed by the processor, cause the system to: display object images arranged in a first direction in the display area; determine a touch and a position of the touch; define, in the display area, first and second operation regions arranged in a second direction orthogonal to the first direction, the first operation region being not defined in the identical position to the second operation region, at least a part of each object image being displayed in the two operation regions; when determined the touch in the first operation region, execute a unique process assigned for one of the object images displayed at a position of the touch; and when determined the touch in the second operation region and when determined that a position of the touch is moving in the first direction while keeping the touch, scroll the object images in the first direction.