Pencil sketch simulating and drawing system based on brush stroke

A technology of pencil sketching and brushstrokes, applied in the interdisciplinary field, can solve the problems of loose data representation, unfavorable editing, lack of structural information, etc., to achieve the effect of speeding up the creation speed, reducing the requirements of painting skills, and high application value

Active Publication Date: 2012-06-20
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

Contrary to the texture mapping method, this type of method only describes the drawing object in the two-dimensional image space, and cannot use the geometric information of the object's three-dimensional space
Due to the lack of structural information, the data representation is generally loose, which is not conducive to editing
[0006] Both the texture-mapping-based method and the image-based method treat the pencil sketch lines as a collection (texture or image), lacking individual pencil line information, and thus cannot reflect the human drawing process and drawing habits.

Method used

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  • Pencil sketch simulating and drawing system based on brush stroke
  • Pencil sketch simulating and drawing system based on brush stroke
  • Pencil sketch simulating and drawing system based on brush stroke

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0034] figure 1 A modular flow chart of the whole system is given. The whole system mainly includes five modules: user interaction module, feature path automatic generation module, hatch path automatic generation module, stroke generation module from path, and drawing output module. Among them, the feature path automatic generation module, the hatch path automatic generation module, the stroke generation module from the path, and the drawing output module are automatically controlled by the system, and the user interaction module mainly provides various interactive tools for users to use.

[0035] The system first generates feature paths and hatch paths by the feature path automatic generation module and hatch path autom...

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Abstract

The invention discloses a pencil sketch simulating and drawing system based on brush stroke. In the system, a three-dimensional geometrical model is used as input, and a pencil sketch picture is generated by combining automatic generation and interaction. The system classifies the brush strokes in the pencil sketch drawing into feature brush strokes and hatch brush strokes, and performs simulation and drawing respectively. The system mainly comprises a user interaction module, a feature path automatic generation module, a hatch path automatic generation module, a module for generating brush strokes from paths and a drawing output module. The system disclosed by the invention conforms to the actual pencil sketch creation mechanism of the human, realizes a real drawing effect, is easy to edit and modify and the like, and has important application values in the aspects of computer-aided design, artistic design, special effects, digital entertainment and the like.

Description

technical field [0001] The invention belongs to the interdisciplinary technical field of combining computer graphics, computer-aided design and art design, and relates to a method for automatically or interactively generating pencil sketches based on strokes according to an input three-dimensional geometric model. Background technique [0002] The simulation of various art media has been widely used in the fields of digital art design, digital entertainment, film animation production, and digital image processing, and pencil sketch drawing, as the basic content of painting, has attracted extensive attention. The existing pencil sketch simulation drawing methods can be roughly divided into four categories: methods based on volume rendering, methods based on texture mapping, methods based on images and methods based on strokes. [0003] The earliest work in the pencil sketch simulation rendering work is the volume rendering model established by Takagi et al. Volume rendering ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/00
Inventor 王宁胡包钢
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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