Coding pattern-based position information acquiring device and method

Abstract

The embodiment of the invention relates to a coding pattern-based position information acquiring device and method. The device comprises a shell, an image acquiring sensor, an image processing deviceand a wireless module, wherein an opening is formed in the bottom end of the shell; an accommodating part is arranged inside the shell; the image acquiring sensor is arranged in the accommodating partand used for acquiring a coding pattern on a coding paper below the position information acquiring device through the opening and generating a coding pattern image signal; the image processing deviceis arranged in the accommodating part, electrically connected with the image acquiring sensor and used for building a grid model according to the received coding pattern image signal acquired by theimage acquiring sensor, determining a nominal position according to the grid model, identifying a marker of the coding pattern according to the coding pattern image signal, determining the marker position and determining the value of the marker according to the marker position relative to the nominal position, thereby outputting position information; and the wireless module is arranged in the accommodating part and used for sending the position information to an external receiving device.

Description

technical field [0001] The present invention relates to the field of image recognition and processing equipment, in particular to an acquisition device and method for position information based on a coding pattern. Background technique [0002] With the rapid development of information technology, people are increasingly using computers to produce, process, exchange and disseminate various forms of information. Information technology is gradually changing people's living habits. The traditional way of writing with paper and pen cannot be processed by information technology, so it cannot meet people's needs. [0003] In the prior art, some type of information needs to be position-encoded and embedded in a passive substrate such as a sheet of paper, a tablet or equivalent. The information embedded locally in the substrate can be read, reconstructed and used with a scanner, fax machine, camera or digital pen. For example, human-readable graphical information on the substrate...

AI Technical Summary

Problems solved by technology

The traditional way of writing with paper and pen cannot be processed by information technology, so it cannot meet people's needs

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