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A Method for Evaluation of Accuracy and Integrity of 3D Reconstruction Point Cloud

A technology of 3D reconstruction and evaluation method, which is applied in the field of 3D reconstruction point cloud accuracy and integrity evaluation, can solve the problems of lack of quantitative evaluation system and achieve the effect of wide application

Active Publication Date: 2022-04-12
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

The model results generated by 3D reconstruction are mainly the spatial coordinates of the target or the surface point of the scene. Generally, the subjective evaluation is mainly based on the reconstruction effect of the whole or local details, and there is a lack of general quantitative evaluation system.

Method used

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  • A Method for Evaluation of Accuracy and Integrity of 3D Reconstruction Point Cloud

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Experimental program
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Effect test

Embodiment

[0041] Such as figure 1 As shown, a 3D reconstruction point cloud accuracy and integrity evaluation method, the specific steps include the following:

[0042] (1) Carry out spatial point cloud registration with the ground truth point cloud model G and the reconstructed point cloud model R;

[0043] (2) Calculate the relative scale unit ε according to the true value point cloud model G;

[0044] (3) Taking the relative scale unit ε as the measurement unit and the distance coefficient as d, evaluate the accuracy P(d), completeness C(d) and comprehensive index F(d).

[0045] In order to further optimize the above technical solution, the method of step (1) spatial point cloud registration includes: manual manual registration, algorithm automatic registration and manual manual and algorithm combination.

[0046] In order to further optimize the above-mentioned technical solution, in step (2), the relative scale unit ε is synthesized by two point cloud length information, one is t...

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Abstract

The invention discloses a method for evaluating the accuracy and completeness of a three-dimensional reconstruction point cloud. The specific steps include the following steps: (1) performing spatial point cloud registration on the ground truth point cloud model G and the reconstructed point cloud model R; (2) according to the The relative scale unit ε is obtained by calculating the true value point cloud model G; (3) taking the relative scale unit ε as the measurement unit and the distance coefficient as d, the evaluation accuracy P(d) and completeness C(d) and composite indicator F(d). The present invention provides a method for evaluating the accuracy and completeness of the three-dimensional reconstruction point cloud by objectively and quantitatively evaluating the accuracy and completeness of the point cloud model obtained from the three-dimensional reconstruction to promote the further development of the reconstruction technology.

Description

technical field [0001] The invention relates to the field of digital geometry processing, in particular to a method for evaluating the accuracy and completeness of a three-dimensional reconstruction point cloud. Background technique [0002] In the computer field, 3D reconstruction is based on images to perform 3D reconstruction to recover the 3D information of the target or scene, which is widely used in the fields of virtual reality and augmented reality. The model results generated by 3D reconstruction are mainly the spatial coordinates of the target or scene surface points. Generally, the subjective evaluation is mainly based on the reconstruction effect of the whole or local details, and there is a lack of general quantitative evaluation system. [0003] Therefore, how to provide an objective and quantitative evaluation of the reconstructed point cloud in terms of the accuracy and completeness of the point cloud model obtained from 3D reconstruction, so as to promote th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/35
CPCG06T7/35G06T2207/10028
Inventor 姜志国张浩鹏魏全茂谢凤英赵丹培
Owner BEIHANG UNIV
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