Three-dimensional model simplification method suitable for model with textures

A technology of 3D model and texture model, which is applied in the field of image processing, can solve the problem that geometric coordinates do not correspond to normal vectors and texture coordinates, and achieve the effect of maintaining visual features and simplifying the model

Active Publication Date: 2014-04-09
FOCUS TECH
View PDF3 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in practical applications, it often occurs that geometric coordinates do not correspond to normal vectors and texture co

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
  • Three-dimensional model simplification method suitable for model with textures
  • Three-dimensional model simplification method suitable for model with textures
  • Three-dimensional model simplification method suitable for model with textures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] In order to realize the simplification method of the textured 3D mesh model proposed by the present invention, this embodiment proposes a specific mesh simplification scheme based on triangle merging, such as figure 1 as shown, figure 1 It is a flow chart of an implementation of this embodiment, which mainly includes the following key steps: establish topology and mark vertex attributes, mark triangles that can be merged and cannot be merged, calculate the merge cost ΔM of triangles, and calculate the relative optimal merge of triangles point v 0 , Triangular merger simplification. The following is a detailed introduction.

[0041] (1) Establish topology and vertex attribute labeling.

[0042] The 3D model simplification method applicable to textured models in this embodiment traverses the mesh model in units of vertices ...

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 discloses a three-dimensional model simplification method suitable for a model with textures. The three-dimensional model simplification method comprises the following steps: 1. acquiring grid information of a three-dimensional model; 2. automatically marking triangles which can be combined and can not be combined; 3. calculating the combination operation cost of the triangles which can be combined; 4. determining the triangles with the lowest combination operation cost, executing the combination operation, and updating the combination operation cost of the influenced triangles; 5. if the amount of the residual triangles reaches the requirements or the model can not be continuously simplified, turning to the step 6, otherwise turning to the step 4; and 6. completing the simplification, and outputting the model. Texture mapping is a very important part in the model visual effect. Due to the adoption of the three-dimensional model simplification method, a triangle combination cost code suitable for the model with the textures is provided; as two errors of the combination of the triangles and texture variable quantity measurement are combined as the combination cost of the triangles, a geometrical error and the texture variation factors are both considered, the texture mapping effect of the existing model is kept as much as possible when the model is simplified, and variation of the model visual effect before and after the simplification is less.

Description

technical field [0001] The invention belongs to the field of image processing, and mainly relates to a method for simplifying a textured three-dimensional grid model. Background technique [0002] With the rapid popularization of network technology and the improvement of user needs, the content of network transmission has gradually changed from static two-dimensional images to three-dimensional images. In order to effectively improve data transmission efficiency and display speed, it is usually necessary to simplify the triangular mesh model and use fewer triangular patches to form the model mesh. [0003] Mesh simplification methods can generally be classified into the following four categories: sampling, adaptive subdivision, deletion, and vertex merging. Among them, the basic principle of the vertex merging method is to shrink two or more vertices in the model to one vertex, and reduce the number of triangles by merging vertices. It is characterized by a clear method and...

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
IPC IPC(8): G06T17/00
Inventor 唐慧王征朱春雷
Owner FOCUS TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap