Method and device for creating three-dimensional sketch and computer equipment

A sketch and three-dimensional technology, which is applied in the field of devices and computer equipment, and the creation method of three-dimensional sketches, can solve the problems of low efficiency of three-dimensional sketch creation, and achieve the effect of reducing the difficulty of creation, improving the creation efficiency, and narrowing the selection range.

Pending Publication Date: 2019-04-19
SHENZHEN UNIV
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Problems solved by technology

[0004] However, due to the increase of two-dimensional strokes, the selection range of the canvas in the 3D model corresponding to the two-dimensional strokes is still very large when using the traditional technology method, and the user still needs to select a suitable canvas from a large number of canvases, resulting in 3D sketches. Create inefficient

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  • Method and device for creating three-dimensional sketch and computer equipment
  • Method and device for creating three-dimensional sketch and computer equipment
  • Method and device for creating three-dimensional sketch and computer equipment

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[0026] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0027] The method for creating a three-dimensional sketch provided by this application can be applied to such as figure 1 shown in the application environment. Among them, the user inputs two-dimensional strokes through 130, and redesigns and improves on the basis of the three-dimensional model 120; 110 can be but not limited to various personal computers, notebook computers, smart phones, and tablet computers; 130 can be but not limited to a Input devices such as mouse and digital board; 120 can be any 3D model that the user needs to renew and improve.

[0028] In one e...

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Abstract

The invention relates to a Method and device for creating three-dimensional sketch and computer equipment, and the method comprises the steps: carrying out the feature extraction of a to-be-modified three-dimensional model through the computer equipment, obtaining linear features, carrying out the line segment processing of a two-dimensional stroke input by a user, and determining each straight line segment of the two-dimensional stroke; Then, obtaining linear features of the three-dimensional model and position relations between all straight line segments of the two-dimensional strokes, and generating candidate canvases according to all the position relations and preset canvas forming conditions; And determining a target canvas according to the capability coefficients of the candidate canvases, and performing back projection on the two-dimensional strokes on the target canvas to obtain a three-dimensional sketch. According to the method, the difficulty of creating the three-dimensional sketch can be reduced, so that the creation of the three-dimensional sketch is simpler; Furthermore, the creating efficiency of the three-dimensional sketch can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method, device and computer equipment for creating a three-dimensional sketch. Background technique [0002] At present, drawing two-dimensional curves from one or more viewpoints is mature, but it is extremely challenging to upgrade these two-dimensional strokes to a three-dimensional level. For a given two-dimensional stroke, back-project the two-dimensional stroke to three-dimensional After different canvases in the model, different 3D curves will be obtained. However, there may be countless canvases corresponding to them in the 3D model. [0003] Upgrading two-dimensional strokes to three-dimensional. The common application scenario is that on the basis of an existing three-dimensional model, the user uses a two-dimensional input device such as a digital board to map the added two-dimensional strokes to the corresponding position in the three-dimensional model. To...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/20G06T3/00G06T19/20G06F3/0484
CPCG06F3/04845G06T3/005G06T11/203G06T19/20
Inventor 徐鹏飞黄惠
Owner SHENZHEN UNIV
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