A method for smoothing handwritten fonts by optical touch

Abstract

The invention relates to a method for smooth processing of optical touch handwritten fonts. Function modules comprise an optical sensor signal processing unit, an image signal interface unit, a self-adaptive tracking and adjusting unit, and a signal storage unit. The method for smooth processing comprises the following steps of enabling the optical sensor signal processing unit to collect and process image signals displayed on a touch screen; enabling the image signal interface unit to transmit the received perceptual image signals of the optical sensor signal processing unit into the self-adaptive tracking and adjusting unit; enabling the self-adaptive tracking and adjusting unit to carry out self-adaptive iterative computation and processing on the transmitted perceptual image signals, and correcting the touch positions of the current points of the images; and transmitting the image data after being subjected to the self-adaptive tracking and iteration into the signal storage unit for storing. The method has the advantages that the robustness is obviously improved, the optical touch handwriting is smoother, and higher timeliness, accuracy and stability are realized. In the industrial mass production mode, the easy implementation is realized, and the qualified rate of the mass production is high.

Description

technical field [0001] The invention relates to optical touch technology, in particular to a method for smoothing handwritten characters by optical touch using adaptive tracking adjustment. Background technique [0002] At present, the mainstream touch technology in the domestic market is mainly based on vector pressure sensing technology, resistance technology, infrared technology, capacitive technology, and touch surface acoustic wave technology. Although these touch technologies have their own strengths, there are more or less many Technical problems are difficult to solve. The emergence of optical touch screens has basically solved the problems of many touch screens, and has the superior conditions to lead the future touch market. Optical touch technology is a new technology different from the existing touch technology. The optical sensor responds quickly to detailed movements, making the operator's operation lighter, smoother and more accurate. The optical module can ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a method for adjusting optical touch image signals using adaptive tracking, which uses adaptive tracking adjustment processing to replace the existing mean value filter processing. This method solves the problem of unsmooth touch handwriting problems while greatly reducing the latency of optical touch smoothing

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