Graphic Input System with Dynamic Similarity Threshold
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Solution Overview
Problem
Existing motion input systems face inconvenience when users attempt to register motions that are similar to already registered graphics, as the systems treat all users' abilities uniformly, leading to complex operations for both registration and output, especially for users with varying drawing skills.
Innovation Solution
A motion input system that includes a graphic recognizing device with a processor, storage unit, and input unit, which uses a registration instruction obtaining unit, feature extracting unit, similarity calculating unit, and similarity judging unit to determine the similarity between the user's motion and existing graphics in a dictionary, allowing users to register unique motions by adjusting the similarity criterion and notifying the user of similar graphics, enabling easier registration of distinct inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system uses a uniform similarity criterion for all users, then the system structure remains simple, but users with different drawing skills experience inconvenience and complexity during motion registration
Solution Approach 1:
The similarity criterion is made dynamic and adjustable rather than fixed. The system allows the similarity threshold to be modified based on user needs and drawing skills, transforming a static parameter into a flexible one that adapts to different user capabilities.
Solution Approach 2:
The system changes the parameter of similarity threshold from a fixed value to an adjustable parameter. By allowing modification of this parameter, the system accommodates users with varying drawing skills without requiring complete system redesign.
2Adaptability or versatility
If the system allows registration of similar motions without restriction, then user freedom is increased, but recognition accuracy decreases due to duplicate or near-duplicate entries
Solution Approach 1:
The system provides feedback to users by notifying them when a registered motion is similar to existing motions in the dictionary. This feedback mechanism allows users to make informed decisions about whether to proceed with registration, thereby maintaining recognition accuracy while preserving user flexibility.
Solution Approach 2:
The system performs a preliminary similarity check before allowing motion registration. By checking for similar motions in advance and notifying users, the system prevents potential recognition conflicts before they occur, ensuring high recognition accuracy.
3Measurement precision
If the system requires strict similarity matching for motion recognition, then recognition precision is improved, but users with lower drawing skills cannot successfully register their motions
Solution Approach 1:
The similarity threshold parameter is made dynamic and adjustable. Users can modify the threshold according to their drawing skills, allowing those with lower skills to use lower thresholds that accommodate their variations while maintaining precision for users with higher skills who can use stricter thresholds.
Solution Approach 2:
The system allows changing the similarity threshold parameter to accommodate different user capabilities. By adjusting this parameter, the system maintains recognition precision for expert users while becoming more accessible to novice users with less consistent drawing skills.
Data Source
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AI summary
To prevent an inconvenience from being generated when a user registers a graphic that the user wants to register. A graphic input device obtains registered graphic data indicating a graphic entered by a user and related information associated with the graphic, calculates similarity between the registered graphic data and one of items of graphic data registered in a dictionary, determines whether the entered graphic and a graphic indicated by the item of graphic data is similar to each other based on the calculated similarity, and, in a case where the entered graphic and the graphic indicated by the item of graphic data is not similar to each other, registers the registered graphic data and the related information in the dictionary in association with each other.