Touch object feature identification method, and touch screen operation method and device

Abstract

The invention discloses a touch object feature identification method, which comprises the following steps: when the touch operation of at least one touch object on a touch screen is responded, starting the infrared double photoelectric tubes of the touch screen for scanning to obtain the information of blocked ray between the infrared double photoelectric tubes; identifying at least one true touch point, and recording the position coordinate of each true touch position; collecting the current image of the touch screen, and extracting the characteristic and the characteristic position of each touch object in the current image; and matching the position coordinate of each true touch point with each characteristic position one by one so as to determine touch object characteristics corresponding to each true touch position. The invention also provides a touch object characteristic identification device, and a touch screen operation method and device. The embodiment of the invention can be adopted to realize the identification of different characteristics of a plurality of touch objects, and is high in reliability and wide in applicability.

Description

Technical field [0001] The present invention relates to the technical field of touch screens, and in particular to a method for identifying features of touch objects, a touch screen operation method and a device. Background technique [0002] In the application of interactive touch screen, it is usually necessary to use touch pens with different characteristics (including color, shape, size, etc.) to perform touch operations such as writing and marking. Then, the different characteristics of the touch pen are displayed on the touch screen to make Touch operation is more intuitive. [0003] For example, when writing or labeling and displaying colors, the existing solutions mainly include the following methods: One is to implement color selection software-color selector: the user clicks on the color selection box, and pops up a variety of different queries. In the color dialog box, the user selects the appropriate color in the dialog box; when there are multiple touch pens, in order...

AI Technical Summary

Problems solved by technology

The inventor found that the above two solutions have the following disadvantages: 1. The color display of writing or labeling is realized through the color selector, which does not conform to the usage habits of some users. Use touch pens of different colors to write, instead of using color software to select the color of the touch pen before writing; moreover, when distinguishing the writing or marked color display of multiple touch pens, it is more complicated to set multiple color selectors ; 2. By configuring the pen case, only the color recognition of a single touch pen can be realized, and the color distinction of multiple touch pens cannot be realized; moreover, the color and the touch pen are not exactly one-to-one correspondence, for example, when a certain touch pen is removed After using the touch pen, all touch operations are calibrated to the corresponding color of the touch pen regardless of whether the touch pen is used or not. After that, the touch operation of the stylus will be marked as black, so the reliability of this solution is not high

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