Touch Display Gesture Classification by Stroke Properties
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Solution Overview
Problem
Electronic devices face challenges in distinguishing between handwriting input and other types of user gestures, leading to confusion and reduced user efficiency, as they often incorrectly interpret inputs as handwriting operations.
Innovation Solution
An electronic device with a touch display unit and processor that determines the operation type of user gesture inputs based on properties such as color, thickness, shape, and duration, classifying them as either independent stroke operations for character input or interdependent stroke operations for non-character content, and performs semantic identification accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device treats all touch inputs as handwriting operations, then handwriting recognition functionality is maintained, but input recognition accuracy deteriorates due to misinterpretation of non-handwriting gestures
Solution Approach 1:
The patent analyzes multiple parameters of the touch input including stroke properties (color, thickness, shape), duration, and trajectory characteristics to distinguish between handwriting operations and other gestures. By evaluating these parameters against preset conditions, the system accurately determines the operation type, resolving the contradiction between maintaining handwriting recognition and avoiding misinterpretation of other gestures.
2Measurement precision
If the device uses simple gesture classification, then processing speed is improved, but input recognition accuracy deteriorates due to inability to distinguish similar gestures
Solution Approach 1:
The patent segments the gesture recognition process into distinct stages: acquiring stroke properties (color, thickness, shape), determining duration, analyzing trajectory, and comparing against preset conditions for different operation types. This segmented approach enables precise classification of complex gestures while maintaining manageable processing complexity through systematic breakdown of the recognition task.
3Ease of operation
If the device processes all gestures uniformly, then processing efficiency is maintained, but user experience deteriorates due to incorrect interpretation of gestures
Solution Approach 1:
The patent performs preliminary analysis of stroke properties (color, thickness, shape) and duration before full gesture processing. By determining the operation type early based on these preliminary characteristics, the system can apply appropriate processing paths for different gesture types, improving user experience through accurate interpretation while maintaining processing efficiency through early classification.
Data Source
AI summary
An electronic device is disclosed. The electronic device may include a touch display unit that receives and displays user gesture inputs. The electronic device may include a processor coupled to the touch display unit. Upon the touch display unit receiving a user gesture input, the processor may acquire the user gesture input from the touch display unit and determine an operation type from multiple operation types of the user gesture input based on one or more properties of the user gesture input. Upon the touch display unit receiving a user gesture input, the touch display unit may display the user gesture input in accordance with the operation type of the user gesture input as determined by the processor.