Researching | Online Three-dimension Measurement Based on Improved Grid Motion Statistical Features

Acta Photonica Sinica, Volume. 50, Issue 1, 113(2021)

Online Three-dimension Measurement Based on Improved Grid Motion Statistical Features

Haitao WU1... Yiping CAO1, Yang LI2 and Haihua AN1 |Show fewer author(s)

Author Affiliations

¹School of Electronic Information， Sichuan University， Chengdu60064， China

²School of Science， East China University of Technology， Nanchang330013， China

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Fig. 1. Online 3-D measurement principle

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Fig. 2. Neighborhood matching evaluation model

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Fig. 3. Event space of feature point matching process

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Fig. 4. Feature point matching results of different algorithms

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Fig. 5. Processing chart of simulation reconstruction results

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Fig. 6. Real object experiment diagram

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Fig. 7. Analysis of experimental results

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Table 1. Matching results of different algorithms
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Table 1. Matching results of different algorithms
Results True False True False True False Average accuracy Improvement rate
GMS 120 30 150 40 155 45 0.778 0
SURF 1 4 2 6 1 6 0.205 57.3%
SIFT 1 5 2 5 3 7 0.27 50.8%

Table 2. Error analysis of block gauges with different heights(mm)
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Table 2. Error analysis of block gauges with different heights(mm)
H 6 9 12 15
$δ_{1}$ 0.264 0.195 0.213 0.226
$σ_{1}$ 0.352 0.295 0.326 0.336
$δ_{2}$ 0.092 0.079 0.083 0.087
$σ_{2}$ 0.086 0.071 0.079 0.083

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Haitao WU, Yiping CAO, Yang LI, Haihua AN. Online Three-dimension Measurement Based on Improved Grid Motion Statistical Features[J]. Acta Photonica Sinica, 2021, 50(1): 113

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Paper Information

Category: Instrumentation, Measurement and Metrology

Received: --

Accepted: --

Published Online: Mar. 12, 2021

The Author Email:

DOI:10.3788/gzxb20215001.0112002

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology