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Improved self-defined model three-dimensional two-dimensional code generation method and system facing 3D printing

A custom model and 3D printing technology, applied in the field of 3D printing, can solve the problems of small curvature changes, insufficient color contrast of three-dimensional two-dimensional codes, and difficult decoding, etc., to achieve contrast enhancement, improve decoding success rate, and reduce support structure. Effect

Active Publication Date: 2017-09-08
SHANDONG UNIV
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Problems solved by technology

However, the target area used by this method to generate a three-dimensional two-dimensional code is given by geometric and structural analysis, not completely specified by the user, and these target areas are often areas with relatively small curvature changes
However, in the target area with large curvature changes, the three-dimensional two-dimensional code generated by this method is not easy to be successfully decoded by the decoder due to the insufficient color contrast between the black and white modules.

Method used

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  • Improved self-defined model three-dimensional two-dimensional code generation method and system facing 3D printing
  • Improved self-defined model three-dimensional two-dimensional code generation method and system facing 3D printing
  • Improved self-defined model three-dimensional two-dimensional code generation method and system facing 3D printing

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[0076] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0077] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0078] The triangular patch in the present invention is the basic unit of the triangular mesh obtained after the...

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Abstract

The present invention provides an improved self-defined model three-dimensional two-dimensional code generation method and system facing 3D printing. The method comprises: performing meshing and normalization processing of a self-defined model; employing the perspective projection transformation method to map two-dimensional codes to the target area of the self-defined model; performing hollowing operation according to a mapping result, and generating three-dimensional two-dimensional codes with the same hollowing depth at the surface of the self-defined 3D model; simulating a real two-dimensional code image through a physical experiment, and calculating the whole contrast of the three-dimensional two-dimensional codes and the contrast of each black module; optimizing the depth of the three-dimensional two-dimensional code block module according to the simulation result, and generating the three-dimensional two-dimensional codes; inputting the generated 3D model comprising the three-dimensional two-dimensional codes into a 3D printer, employing homogenous materials for printing, and finally outputting a 3D real object with the three-dimensional two-dimensional codes.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to an improved method and system for generating a three-dimensional two-dimensional code for a custom model for 3D printing. Background technique [0002] Two-dimensional Code (Two-dimensional Code), also known as Quick Response Code (Quick Response Code), is a readable barcode extended on the basis of barcode technology. The two-dimensional code uses black and white square modules to encode a large amount of information, and the information it contains can be quickly conveyed by scanning the device. QR code has become the most widely used automatic identification technology in the information age due to its advantages of convenient information acquisition, website jump, push advertisement, anti-counterfeiting promotion and mobile payment, etc., and is widely used in product traceability, scenic spot tickets, Various fields such as transportation management and conference services. Most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06
CPCG06K19/06159
Inventor 吕琳刘霖彭昊
Owner SHANDONG UNIV
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