Dynamic Selection Region Sizing for Touch Input Accuracy
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Solution Overview
Problem
Users face challenges in accurately inputting data on electronic devices due to environmental factors like movement or disabilities, leading to improper association of inputs with information items, especially when trying to interact with small information items or having varying user capabilities such as sight and finger size.
Innovation Solution
The solution involves determining a selection region for input association based on usage parameters, such as historical and predicted usage, which can expand or contract the input region relative to the graphical representation of the information item, allowing for accurate input even when the user's position is not precise, and enabling independent viewing and input resolutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the input region is made small to match the information item size, then viewing resolution is improved, but input accuracy deteriorates for users with disabilities or in moving environments
Solution Approach 1:
The selection region is dynamically adjusted based on usage parameters. Frequently used information items are assigned larger selection regions to improve input accuracy, while less frequently used items maintain smaller regions to preserve viewing resolution. This dynamic adaptation resolves the contradiction by making the input region size context-dependent rather than fixed.
Solution Approach 2:
Different information items are assigned different selection region sizes based on their individual usage parameters. This local differentiation allows high-frequency items to have enlarged input regions while low-frequency items maintain compact display, resolving the contradiction at the local level for each information item rather than applying a uniform solution.
2Reliability
If the selection region is enlarged to improve input accuracy, then input reliability is improved, but viewing resolution deteriorates
Solution Approach 1:
The system dynamically adjusts selection region size based on real-time usage parameters. Items with high usage frequency receive enlarged regions for accurate input, while maintaining compact display for infrequently used items, thus resolving the contradiction through context-aware dynamic sizing.
Solution Approach 2:
The selection region size parameter is changed based on usage parameters. By modifying the size parameter dynamically according to usage frequency and other factors, the system optimizes both input accuracy and viewing resolution for different information items.
3Device complexity
If a fixed selection region is used for all information items, then device complexity is reduced, but adaptability to different user capabilities deteriorates
Solution Approach 1:
The system automatically determines appropriate selection region sizes for each information item based on its usage parameters without requiring manual configuration. This self-service approach maintains low device complexity while achieving high adaptability to different user capabilities and usage patterns.
Solution Approach 2:
The selection region parameters are automatically adjusted based on usage data and user capabilities. The system changes relevant parameters dynamically to adapt to different users and situations, achieving versatility without increasing operational complexity for the user.
Data Source
Figure 1A~1E
Figure 2A~2D
Figure 3A~6
AI summary
An apparatus, comprising a processor memory including computer program code, the memory and the computer program code configured to, working with the processor, cause the apparatus to perform at least the following, determining a first usage parameter associated with a first information item, determining graphical representation corresponding to the first information item, wherein the determination is uninfluenced by the first usage parameter, determining a first selection region associated with the first information item, based, at least in part, on the first usage parameter, and causing display of the graphical representation absent indication of the first selection region is disclosed.