Touchscreen Card Recognition via Contact Point Detection
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Solution Overview
Problem
Existing technologies fail to establish seamless coordination between a virtual space on a touchscreen and a physical medium outside, due to the lack of technology for dynamically obtaining and recognizing the positional relationship of the medium relative to the touchscreen, including size, position, DPI, and orientation, which is necessary for arbitrary-sized and shaped media.
Innovation Solution
An information processing system with a detecting unit on the touchscreen that recognizes the kind and position of a medium with contact points, allowing for dynamic adjustment of the displayed image based on these attributes, enabling seamless interaction between virtual and real-world elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing technologies (NFC, iBeacon, camera) are used to coordinate virtual space with real world, then coordination capability is achieved, but device complexity increases and privacy risks arise
Solution Approach 1:
The touchscreen itself performs the detection function by detecting contact points directly, eliminating the need for separate NFC readers, cameras, or iBeacon devices. The system uses its existing display surface as the detection medium, achieving self-service and reducing overall device complexity.
Solution Approach 2:
The touchscreen serves multiple functions: it acts as both the display surface for virtual content and the detection surface for physical medium coordination. This multi-functionality eliminates the need for separate coordination devices, reducing device complexity while maintaining adaptability.
2Adaptability or versatility
If camera is used to capture real world images, then coordination capability is achieved, but privacy invasion risk increases
Solution Approach 1:
The invention extracts the detection function from the camera and relocates it to the touchscreen surface. By using contact points detected on the touchscreen instead of camera images, the system achieves coordination capability without capturing or processing real-world visual data, thereby eliminating privacy invasion risks.
3Measurement precision
If medium must be accurately aligned with touchscreen, then coordination precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system dynamically adjusts the virtual content display based on the detected position and orientation of the physical medium. Instead of requiring fixed alignment, the virtual content adapts to the medium's actual placement, maintaining coordination precision while significantly improving ease of operation.
Solution Approach 2:
The system uses feedback from the detected contact points to automatically adjust the virtual content's position, size, and orientation. This closed-loop approach eliminates the need for manual alignment while maintaining precise coordination between virtual and physical elements.
4Manufacturing precision
If touchscreen size is standardized, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The system changes the parameters of the displayed virtual content (size, position, orientation) based on the detected physical medium characteristics and touchscreen properties. This allows the system to work with arbitrary-sized media on various touchscreen devices without requiring standardized dimensions, maintaining both manufacturing flexibility and adaptability.
Data Source
AI summary
A card has a plurality of contact points attached on the same face thereof, the plurality of contact points being detectable by a detecting method for a touchscreen. In the case where the card is placed on the touchscreen, a recognition unit recognizes a kind of the card and a relative position and orientation of the card relative to the touchscreen on the basis of at least some of the plurality of contact points detected by the touchscreen. On the basis of the results of recognition by the recognition unit, a determining unit determines a relevant image to be displayed on the touchscreen and determines a size, position, and orientation for displaying the relevant image on the touchscreen.