Three-dimensional model retrieval method and apparatus

A 3D model and sub-block technology, applied in multimedia data retrieval, multimedia data indexing, special data processing applications, etc., can solve problems such as slow retrieval speed and poor matching effect

Active Publication Date: 2014-12-24
FUJITSU LTD
View PDF5 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned retrieval methods for 3D models gene...

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 retrieval method and apparatus
  • Three-dimensional model retrieval method and apparatus
  • Three-dimensional model retrieval method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 A schematic flowchart of a three-dimensional model retrieval method according to an embodiment of the present invention is shown.

[0023] Wherein, in step S101, the three-dimensional model to be retrieved is divided into multiple sub-blocks; in step S102, the sub-blocks are classified according to the shape characteristics of the sub-blocks, and each category corresponds to a specific shape feature. Each category may contain one or more sub-blocks; in step S103, the multiple sub-blocks in the three-dimensional model to be retrieved are divided into multiple layers according to the size of each sub-block; next, in step S104, according to each layer The connection relationship of each sub-block in the three-dimensional model in which it is located is used to extract the structural feature of each layer as the multi-layer structure feature of the three-dimensional model; finally, in step S105, according to the multi-layer structure feature, calculate the The similar...

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 retrieval method and apparatus and a three-dimensional model database construction method and device. The three-dimensional model retrieval method includes the steps of dividing a three-dimensional model to be retrieved into a plurality of sub-blocks; classifying the sub-blocks according to shape characteristics of the sub-blocks; separating the plurality of sub-blocks of the three-dimensional model to be retrieved into layers according to the size of every sub-block; extracting structural characteristics of every layer as multilayer structure characteristics of the three-dimensional model according to the connection relationship of every sub-block in every layer in the three-dimensional model; calculating the similarity of the three-dimensional model to be retrieved and every three-dimensional model in a three-dimensional model database according to the multilayer structure characteristics; outputting a retrieval result according to similarity calculation results.

Description

Technical field [0001] The present invention relates to the field of computer pattern recognition, and more specifically to the technology of three-dimensional model retrieval. Background technique [0002] With the development of computer technology and CAD (computer aided design) technology, more and more three-dimensional models have been designed. Three-dimensional model is the fourth type of multimedia data after audio, image and video. The increasingly developed Internet and computers with increasing performance provide conditions for people to share and process three-dimensional models. How to manage and reuse these 3D models becomes particularly important for customers, because it helps shorten product cycles and reduce design costs. [0003] The retrieval method of 3D model is similar to other multimedia data retrieval methods, mainly divided into text-based retrieval and content-based retrieval. The text-based retrieval method relies on manual annotation and has the dis...

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): G06F17/30
CPCG06F16/185G06F16/41G06F16/43G06F16/435G06F16/444
Inventor 王月红刘汝杰远藤进上原祐介马场孝之
Owner FUJITSU LTD
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