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System and method based on redirection subdivision surface image vectorization

A subdivision surface and reorientation technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problems of large vector error and poor vector picture effect, so as to avoid large vector error and improve grid quality Effect

Pending Publication Date: 2020-07-28
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the vector error is relatively large when the image is vectorized by the subdivision surface method, which leads to the problem that the effect of the vector picture is too poor, and to provide a system and method for vectorizing an image based on a redirection subdivision surface

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  • System and method based on redirection subdivision surface image vectorization
  • System and method based on redirection subdivision surface image vectorization
  • System and method based on redirection subdivision surface image vectorization

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Embodiment Construction

[0018] Preferred implementation example of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0019] like figure 1 Shown, a kind of system based on retargeting subdivision surface image vectorization includes feature extraction module, network construction module, base grid generation module, redirection subdivision surface module and bitmap transformation module; Described feature extraction module will The original raster image is converted into an image with feature information; the network construction module converts the image with feature information into a triangular grid with color information by the method of Delaunay triangulation; the base grid generation module The triangular mesh will be generated for simplification to generate a base grid; the redirected subdivision surface module will carry out subdivision surface fitting on the base grid in a redirected manner to fill color information; the bitmap conversion modu...

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Abstract

The invention discloses a system and method based on redirection subdivision surface image vectorization. The system comprises a feature extraction module, a network construction module, a basic gridgeneration module, a redirection subdivision surface module and a bitmap conversion module. The method comprises the following steps that a region segmentation module converts an original grating image into an image with feature information; the network construction module converts the image with the feature information into a triangular mesh with color information through a Delaunay triangulationmethod; the base grid generation module performs simplification processing on a generated triangular grid to generate a base grid, the redirection subdivision surface module performs subdivision surface fitting on the base grid in a redirection mode to fill color information, and finally the bitmap conversion module converts a control grid obtained by the redirection subdivision surface module into a bitmap.

Description

technical field [0001] The invention relates to a system and method for vectorizing subdivision surface images based on redirection. Background technique [0002] Digital images are divided into two categories: bitmaps and vector graphics. Bitmaps are composed of a number of pixels. When the bitmap is enlarged, the lines and shapes appear uneven, while vector graphics have no such problems and have a small storage capacity. Easy to edit, so image vectorization is a hot topic in recent digital image processing in recent years. [0003] Among the existing vectorization methods, the method with better effect is the image vectorization method based on subdivision surface. This method mainly uses segmented smooth subdivision surface to represent vectorized graphics. This method can provide powerful image post-processing Editing capabilities, so more commonly used. However, the disadvantage of this method is that the vector error is large, and the color of the edge of the image ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/20G06T7/90
CPCG06T17/20G06T7/90G06T2207/10024
Inventor 张新鹏李劲松冯国瑞
Owner SHANGHAI UNIV