Infrared Touch Handwriting Recognition with Height Features
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Solution Overview
Problem
Existing infrared touch screen technologies struggle to accurately recognize touch points when users write at lower heights, leading to connected or curled handwriting, which affects the display quality of handwriting.
Innovation Solution
A method and device that acquire an infrared-ray dataset, determine touch points, calculate basic and blocked ray parameters, generate height feature information, and use a writing-height prediction model to predict touch status, selecting target touch points to form accurate handwriting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If maximum blocking percentage is used to determine touch status, then the recognition method is simple, but the accuracy of touch status recognition deteriorates when users write at lower heights
Solution Approach 1:
The patent introduces a new dimension of height feature information based on blocked infrared ray data, transforming the single-dimensional maximum blocking percentage method into a multi-dimensional analysis that includes height characteristics. This allows the system to distinguish between different writing heights and accurately recognize touch status.
Solution Approach 2:
The patent changes the parameters used for touch status recognition from simple maximum blocking percentage to a combination of basic attribute parameters and blocked ray parameters that capture height information. This parameter transformation enables accurate recognition across different writing heights.
2Productivity
If simple touch recognition is used, then the processing speed is fast, but the handwriting quality deteriorates due to connected or curled handwriting
Solution Approach 1:
The patent performs preliminary analysis of blocked infrared ray data to generate height feature information before touch status recognition. This preliminary action enables the system to anticipate and correctly identify touch status, preventing connected or curled handwriting while maintaining processing efficiency.
Solution Approach 2:
The patent introduces height feature information as an intermediary element between the raw infrared ray data and the final touch status recognition. This intermediary provides additional contextual information that improves handwriting quality without significantly increasing processing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures accurate recognition of touch status and improved display effect of handwriting, especially at lower writing heights, by quickly and accurately generating precise handwriting.
Implementation Method 1
Infrared touch screen technology (also known as touch screen with infrared technology) is a type of touch screen that uses infrared tubes to form an infrared detection network on a surface of the touch screen. The touch recognition is achieved by the touch object's operation on the touch screen obstructing the infrared rays.
Implementation Method 2
The touch recognition is achieved by the touch object's operation on the touch screen obstructing the infrared rays.
Data Source
AI summary
According to an embodiment of the present disclosure, a method and device for generating handwriting of touch writing, an electronic device, and a storage medium are provided. The method includes: acquiring an infrared-ray dataset generated by touch writing on an infrared touch screen; determining a set of touch points based on the infrared-ray dataset, and calculating a basic attribute parameter of respective touch point within the set of touch points for indicating a touch feature; acquiring blocked-infrared-ray data corresponding to a blocked region of respective touch point within the set of touch points from the infrared-ray dataset, and calculating a blocked ray parameter of respective touch point.