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

Complex structure point cloud processing algorithm bases on Poisson reconstruction

A technology with complex structures and processing algorithms, applied in image data processing, computing, 3D modeling, etc., can solve problems such as not suitable for reconstructing curved surfaces, difficult to meet physical performance requirements, and relatively few researches on surface functional constraints. The effect of great resistance

Inactive Publication Date: 2016-02-17
YANSHAN UNIV
View PDF2 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing surface reconstruction methods are mainly based on the geometric constraints of point clouds, which are not suitable for reconstructing surfaces with complex topological shapes. There are relatively few studies on the functional constraints of surfaces. Even if the functional surfaces in the reconstruction engineering field can meet the geometric accuracy requirements, but it is difficult to meet its physical performance requirements

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
  • Complex structure point cloud processing algorithm bases on Poisson reconstruction
  • Complex structure point cloud processing algorithm bases on Poisson reconstruction
  • Complex structure point cloud processing algorithm bases on Poisson reconstruction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] A complex structure point cloud processing algorithm based on Poisson reconstruction, surface reconstruction based on Poisson reconstruction point cloud processing technology method, such as figure 1 As shown, the indicator function is used to describe the surface, such as figure 1 As shown in (c), the interior is 1 and the exterior is 0, and the vector field based on the normal vector is constructed by Gaussian filtering, such as figure 1 As shown in (b), and using the multi-grid (referred to as Multi-grid) method to solve the Poisson equation is as follows figure 1 The indicator function of the oriented point cloud shown in (a) is as figure 1 The transition part shown in (d) completes the surface reconstruction; if the gradient field is directly calculated, it will cause the infinite value of the vector field at the edge of...

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 complex structure point cloud processing algorithm bases on Poisson reconstruction. Curved surface reconstruction carried out through a point cloud processing technical method based on Poisson reconstruction adopts an indicator function to describe a curved surface; a vector field based on normal vector is constructed through Gaussian filtering; and a Poisson equation is solved through a multi-grid method to obtain a transition portion of the indicator function of directional point cloud to finish the curved surface reconstruction. The curved surface reconstruction technology based on Poisson is mainly formed by five parts: defining an octree, setting function space, estimating the vector field, solving the Poisson equation and extracting contour surface. With the fast development of a 3D laser scanning device, the point cloud obtaining technology also has considerable progress. The point cloud processing algorithm can be widely applied to the fields of reverse engineering, hybrid modeling, visual inspection, medical images and archaeological and cultural relic modeling and the like.

Description

technical field [0001] The invention relates to a complex structure point cloud processing algorithm based on Poisson reconstruction. Background technique [0002] With the rapid development of the manufacturing industry, the shape of the product is becoming more and more complex, and the shape modeling technology is facing more and more challenges. With the application of CAD technology in other fields, complex surface modeling can be used in the reconstruction of vehicle accident scenes, the acquisition of product geometric models, reverse engineering, 3D city modeling, human interaction and perception of mobile robots, automobiles, aviation and other fields. play an important role. [0003] Surface reconstruction is a common research core technology in these fields, and has become the main method of complex surface modeling in practical engineering. Surface reconstruction technology emerged in the 1980s as an application of computer-aided geometric design and computer g...

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): G06T17/00G06T17/30
CPCG06T17/005G06T17/30
Inventor 张立国王静金梅
Owner YANSHAN UNIV
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