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Three-dimensional model data simplification method

A data simplification and three-dimensional model technology, applied in the fields of 3D image data details, image data processing, 3D modeling, etc., can solve the problems that cannot meet the actual needs of users, reduce the structure level of model data, and change the observation angle, etc. Achieve the effect of reducing the structure level, reducing the quantity, and speeding up the loading speed

Active Publication Date: 2017-04-26
星际空间(天津)科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unable to navigate freely, change the observation angle and other interactions, there are restrictions on interaction
This limitation, except for the map application, has very few other practical applications, which cannot meet the more actual needs of users
[0011] At present, there is no relatively complete 3D model data simplification method, which can solve the problems of heterogeneous data processing, texture merging, and 3D model data simplification at the same time, reduce the structural level of model data, speed up model loading, and improve data quality. Resource Access Efficiency

Method used

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Embodiment 1

[0083] figure 1 A schematic flowchart of a method for simplifying 3D model data provided in this embodiment. like figure 1 As shown, a method for data simplification of a three-dimensional model, the method includes the following steps:

[0084] Unified data structure: perform structural preprocessing on heterogeneous raw data to form model data with a unified structure;

[0085] Texture merging and coordinate updating: perform texture merging and coordinate updating on the data after the unified structure;

[0086] Integrate the model data: combine the texture merged data according to the texture coordinates, vertex coordinates, and normal coordinates corresponding to different material information to simplify the data hierarchy;

[0087] Reconstruct model data: Simplify the non-feature points in the model according to the relationship between the model geometry and reconstruct the model data.

[0088] like figure 2 A method for simplifying three-dimensional model data ...

Embodiment 2

[0131] figure 1 A schematic flowchart of a method for simplifying 3D model data provided in this embodiment. like figure 1 As shown, a method for data simplification of a three-dimensional model, the method includes the following steps:

[0132] Unified data structure: perform structural preprocessing on heterogeneous raw data to form model data with a unified structure;

[0133] Texture merging and coordinate updating: perform texture merging and coordinate updating on the data after the unified structure;

[0134] Integrate the model data: combine the texture merged data according to the texture coordinates, vertex coordinates, and normal coordinates corresponding to different material information to simplify the data hierarchy;

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Abstract

The invention discloses a three-dimensional model simplification method, and relates to the technical field of model building. The method is characterized by comprising the following steps of unifying a data structure; combining texture and updating a coordinate; and integrating model data and reconstructing the model data. With the method disclosed by the embodiment of the invention, heterogeneous data processing and texture combination can be achieved, the number in model texture is reduced, the memory of a video card is reduced, the utilization efficiency of hardware resources is improved to the greatest extent, the number of model top points is reduced, the usage of a magnetic disc space is reduced, the structure hierarchy of the model data is reduced, the model loading speed is increased, the data resource access efficiency is improved, the data dispatching of a big-data three-dimensional scene is accelerated, and the rendering of the three-dimensional scene is more smooth.

Description

technical field [0001] The present invention relates to the technical field of three-dimensional model construction, in particular to processing based on heterogeneous data, texture merging, three-dimensional model data simplification, reducing the structural level of model data, accelerating model loading speed, and improving the efficiency of data resource access. It is a method of simplifying 3D model data to speed up the scheduling of massive 3D scene data and make the rendering of 3D scenes more smooth. Background technique [0002] In 1992, the United States first proposed the concept of digital earth from the perspective of ecological environment and global climate change. The original conception of Digital Earth is based on the existing graphical user interface (GUI), combined with the latest graphics and image technology, and introduces virtual reality and interactive technology into the construction of the virtual environment to create a more natural and immersive ...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T17/30
CPCG06T17/00G06T17/30G06T2200/04
Inventor 高健韩晓晖蔡红沈迎志陈玉成周培龙沈美岑
Owner 星际空间(天津)科技发展有限公司
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