Electronic whiteboard positioning method and system

Abstract

The invention discloses a positioning method for an electronic whiteboard, comprising steps: S1, selecting four point coordinates in the electronic whiteboard coordinate system as whiteboard reference point coordinates, and selecting four point coordinates in the computer screen coordinate system as computer screen reference points Point coordinates, establish the mapping relationship between the two reference point coordinates; S2, substitute the above coordinates into the whiteboard coordinates and the computer screen mapping relationship to solve the parameter values; S3, according to the calculated parameter values, establish the electronic whiteboard measurement coordinates and the computer screen The mapping relationship between the points; S4, according to the mapping relationship, perform arbitrary position positioning on the area where the electronic whiteboard is located. The invention establishes a more accurate mapping relationship between the measurement coordinates of the electronic whiteboard and the point coordinates of the computer screen, eliminates the error caused by the rotation of the ideal image bearing surface on the plane of the electronic whiteboard, and has a simple positioning method and accurate positioning effect.

Description

technical field [0001] The invention relates to the technical field of electronic whiteboard positioning, in particular to an electronic whiteboard positioning method and system. Background technique [0002] Interactive electronic whiteboard is a high-tech product developed by combining cutting-edge electronic technology, software technology and other high-tech means. It is a newly emerging high-level teaching, training and conference demonstration equipment. By applying infrared or electromagnetic principles, it can combine computers and projectors to realize paperless office and teaching. It can write directly with a pen like ordinary whiteboards or teaching blackboards, and then input them into computers. Compared with projectors and ordinary whiteboards , The electronic whiteboard has its own advantages. [0003] In the hot research of electronic whiteboards, how to improve the positioning accuracy has always been the main direction of research, and the functions of el...

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides an electronic whiteboard positioning method and system to solve the problems of poor positioning accuracy and complicated positioning steps in the prior art

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