Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Feature flow-based method for generating abstract line drawing

A technology of line drawing and feature flow, applied in the direction of drawing from basic elements, can solve problems such as insufficient light and shade characteristics of object shapes

Inactive Publication Date: 2013-02-13
INST OF SOFTWARE - CHINESE ACAD OF SCI
View PDF1 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to better simulate the characteristics of hand-painted line drawings, and solve the defects of purely isolated lines in the prior art that are not enough to fully describe the light and shade characteristics of the object's shape

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Feature flow-based method for generating abstract line drawing
  • Feature flow-based method for generating abstract line drawing
  • Feature flow-based method for generating abstract line drawing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be described in detail below through specific embodiments and accompanying drawings.

[0041] figure 1 It is a flow chart of the technical solution of the present invention, the input is a single image, and the output is the corresponding line drawing result. The present invention draws on the anisotropic filtering framework based on the characteristic flow field, so it is first necessary to calculate a smooth, continuous and feature-preserving directional flow field (structural tensor smoothing technology is used in the specific implementation), and then based on the flow field along the gradient direction to calculate the differential response value of edge detection, and finally the differential response value is subjected to adaptive smoothing filtering along the edge tangential flow direction, and soft thresholding processing to obtain the final line drawing effect. It should be noted that the calculation of the directional flow field in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a feature flow-based method for generating an abstract line drawing. The invention aims to design a novel filtering method-FGaD filtering. A feature flow-based anisotropic filtering framework is referenced, a core thought is that the sum of the absolute value of Gaussian first-order filtering results and the absolute value of Gaussian difference filtering results is defined as a differential response value for edge detection, and the differential response value is subjected to soft thresholding so as to acquire a highly abstract line drawings result. According to the FGaD filtering method provided by the invention, large-scale visual features can be effectively detected, and adjacent tiny edge lines can be fused, and highly abstract line drawings with strong stylized effects are generated.

Description

technical field [0001] The invention belongs to the technical field of computer graphics, and relates to an abstract line drawing generation method, in particular to a feature flow-based abstract line drawing generation method. Background technique [0002] Line drawing is an abstract means of visualizing shapes and is one of the most common styles found in many non-photorealistic drawing applications. Because of its unique expressiveness and abstraction, line drawing is widely used in art creation, scientific and technological illustrations, animation games, and print advertising design and other fields. Through the analysis of many line drawings, it can be seen that the artist not only uses lines to outline the outline of the object, but also uses black, white and gray to describe the light and shade of the shape: on the main structure of the object, such as the edge outline, the artist uses long and thick Black lines are used to describe important internal details, which...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/20
Inventor 吴恩华王山东刘学慧
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com