Intelligent three-dimensional processing method of two-dimensional sketch

Abstract

The invention discloses an intelligent three-dimensional processing method of a two-dimensional sketch. The method comprises the following steps: (1), capturing and drawing a track of a free-hand sketch of a user to obtain a two-dimensional closed contour; (2), extracting a middle skeleton line from the two-dimensional closed contour; (3), lifting the middle skeleton line according to a selected proportion; (4), connecting skeleton points and peripheral contour points by an elliptic curve to form a rough linear structure of a three-dimensional model; and (5), obtaining a three-dimensional point cloud based on the linear structure of the three-dimensional model and constructing a continuous and smooth three-dimensional mesh model by using a mesh generation algorithm. According to the invention, the three-dimensional attribute of the free-hand sketch are combined with virtual-reality interaction, so that the three-dimensional spatial cognition, the things relation cognition, and operational capacity development of children can be promoted. The utilization of the method has the great significance in expanding the cognitive domain and the horizon of the children, improving the learning interest of the children, and stimulating the creativity and imagination of the children.

Description

technical field [0001] The invention relates to an image processing method, in particular to an intelligent three-dimensional processing method for a two-dimensional sketch. Background technique [0002] Hand-drawn sketches are a very natural and common way of creation and expression for people. With the widespread use of touch screen devices, freehand two-dimensional drawing on mobile terminals has become more common, but there are few methods or systems that can automatically complete the three-dimensional processing function . At present, the software capable of 3D design is all professional software, such as 3DSMax, Maya, etc., which require supporting operating system and graphics card support, professional training is required to use, and it is difficult for ordinary users, especially children, to use. However, although the Windows system’s own drawing program, KidsPaint and other applications, as well as the current mainstream painting software FingerPaint and Drawin...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing drawing software is limited to two-dimensional image drawing, and the three-dimensional design software is too professional and complicated, and is not easy to use, the present invention proposes an intelligent three-dimensional processing method for two-dimensional sketches, which can automatically convert two-dimensional sketches drawn by users Processed into three-dimensional graphics, providing a simple and easy-to-use human-computer interaction interface to achieve three-dimensional effects and rich follow-up processing functions

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