Unlock instant, AI-driven research and patent intelligence for your innovation.

Non-rigid registration method and system

A non-rigid, non-rigid transformation technology, applied in the three-dimensional field, can solve the problems of large surface distortion, inability to solve high-efficiency, and high complexity of the objective function, and achieve the effect of reducing the optimization time and making the model robust.

Active Publication Date: 2020-07-28
UNIV OF SCI & TECH OF CHINA
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the non-rigid registration problem assigns many local transformations to a surface, the resulting high degree of freedom may distort the surface greatly. Therefore, in order to make the surface still have continuity and smoothness, regular terms are generally introduced to constrain the transformation. Solve, and therefore bring about the problem of high complexity of the objective function, which cannot make the solution more efficient

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
  • Non-rigid registration method and system
  • Non-rigid registration method and system
  • Non-rigid registration method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] The embodiment of the present invention proposes a non-rigid registration method, such as figure 1 As shown, it mainly includes:

[0021] Step S101 , based on the input initial model, and according to a given sampling radius, an embedded simplified graph model is obtained.

[0022] In this embodiment of the present invention, the initial model may be a model capable of calculating geodesic distances, such as a grid model.

[0023] Assignin...

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 non-rigid registration method and system, and the related scheme reduces the optimization time through building an embedded sampling graph model, and employs a quasi-Newton method to solve a replacement function, so as to enable the solving to be quicker; the sparsity is gradually increased through a parameter value adjustment strategy, so that the model is more robust, and in a word, the defects of low solving speed, low precision and the like during non-rigid registration based on the iterative closest point can be effectively overcome.

Description

technical field [0001] The invention relates to the field of three-dimensional technology, in particular to a non-rigid registration method and system. Background technique [0002] Due to the rapid development of 3D scanning technology, the depth data obtained by scanning to reconstruct 3D objects or scenes and the dynamic reconstruction and tracking of 3D objects are more and more widely used. Since the depth scanning device can only measure part of the surface of the object in the local coordinate system each time, and there may be translational misalignment or rotational misalignment, as well as a lot of noise, in order to obtain the complete surface data of the object, it is necessary to perform these local point cloud data. Integration and registration. [0003] For stationary objects under different viewing angles, a rigid transformation in 3D space is generally found through point cloud rigid registration so that the common parts of 3D coordinate points under differ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/33G06T3/00
CPCG06T7/344G06T3/147
Inventor 张举勇要宇馨
Owner UNIV OF SCI & TECH OF CHINA