Face handwriting input system and method based on image acquisition

A handwriting input and image acquisition technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of deviation in writing effect and different writing effect, and achieve convenient movement, large writing range, and high degree of restoration. Effect

Pending Publication Date: 2019-10-18
湖南纸云互动智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This data collection method only records the position of the point of the stylus tip, and the contact surface with the writing medium is the surface in real writing, and different shapes of the contact surface will form different handwriting, resulting in the writing effect input by the prior art and using traditional wr

Method used

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  • Face handwriting input system and method based on image acquisition
  • Face handwriting input system and method based on image acquisition
  • Face handwriting input system and method based on image acquisition

Examples

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Example Embodiment

[0023] Example 1

[0024] The surface handwriting input system includes an input panel 1, an input device, a processing unit and a server platform. The input panel 1 is a flat writing medium. The surface of the input panel 1 is arranged in a dot matrix with coordinate points 2 with unique codes. Each coordinate point 2 includes a positioning mark and a unique coordinate code, and the code is in the form of a two-dimensional code or a bar code. Coordinate points 2 are arranged equidistantly in vertical rows and columns, and the combination of coordinate points 2 forms an input coordinate system.

[0025] The input device is a smart pen 3 with a built-in processing unit, and the smart pen 3 is connected with the server platform. The smart pen 3 has a built-in image acquisition device 7 and a pressure sensor, and the pressure sensor reads the pressure intensity when the writing surface 5 is in contact with the input panel 1 . The writing surface 5 of the smart pen 3 is in the s...

Example Embodiment

[0031] Example 2

[0032] refer to figure 2 and image 3 , the difference between this embodiment and embodiment 1 is:

[0033] The input device in this embodiment is a smart brush 4 with a rectangular writing surface 5, which is an erasing writing device. The writing effect produced by it is to erase the original writing marks and writing content in the input panel 1 and the writing space. When updating the writing space, it can be overwritten by invalid data and initialization value, or deleted before operation.

[0034] The smart brush 4 is a cuboid as a whole, and one side thereof is provided with a writing surface 5 that can erase ink marks. For example, in this embodiment, the writing surface 5 is covered with felt cloth, which can effectively erase the ink marks on the smooth surface. The four corners of the writing surface 5 are positioning points 6 respectively, and the other four vertices of the smart brush 4 are respectively provided with image acquisition dev...

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Abstract

A face handwriting input system based on image acquisition comprises an input panel, an input device, a processing unit and a server platform for storing handwriting input content. Coordinate points are arranged on the input panel to form an input coordinate system, the input device comprises a writing surface, a pressure sensor and an image collector, the writing surface is in contact with the input panel during handwriting operation, and positioning points on the outer edge of the writing surface are contained in the view field of the image collector. The processing unit receives image information of the image collector, calculates handwriting input content and sends the handwriting input content to the server platform. The systrm has the advantages of high handwriting restoration degree, wide writing scene and the like.

Description

technical field [0001] The invention relates to the field of computer interactive handwriting input, in particular to a system and method for surface handwriting input based on image acquisition. Background technique [0002] With the development of handwriting electronic devices, handwriting input functions are applied in various aspects to replace traditional pen and paper writing, such as electronic signature, electronic drawing and so on. In the field of education, the emergence of intelligent classroom systems and learning systems has promoted the development of paperless and intelligent education, which not only saves resources, but also records the teacher's classroom writing and the completion of students' homework, effectively improving the quality of education. However, the handwriting input systems used in existing intelligent classroom systems and learning systems are usually touch-sensitive handwriting input systems that need to be used in conjunction with elect...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/37
Inventor 商剑锋王哲陈浩马星吴文娅
Owner 湖南纸云互动智能科技有限公司
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