Evidence map›Paper›PMID 36502089›Full record

ArticleSensors (Basel, Switzerland)2022

An Improved Synthesis Phase Unwrapping Method Based on Three-Frequency Heterodyne.

Jiangtao Liu, Peng Tian, Hongru Li, Hao Wei, Guoliang Deng, Shouhuan Zhou, Zeyu Ma, Wenwu Wang, Liang He

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Jiangtao LiuCollege of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China.
Peng TianSchool of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
Hongru LiCollege of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China.
Hao WeiCollege of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China.
Guoliang DengCollege of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China.
Shouhuan ZhouCollege of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China.
Zeyu MaSchool of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
Wenwu WangSchool of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
Liang HeSchool of Mechanical Engineering, Sichuan University, Chengdu 610065, China.ORCID 0000-0002-7402-9194

Funding

Postdoctoral interdisciplinary innovation initiation fund of Sichuan University 2019BHJC11Sichuan Province Science and Technology Support Program 2021YFG0323
6 · The paper itself

Abstract

An improved three-frequency heterodyne synthesis phase unwrapping method is proposed to improve the measurement accuracy through phase difference and phase sum operations. This method can reduce the effect of noise and increase the equivalent phase frequency. According to the distribution found in the phase difference calculation process, the Otsu segmentation is introduced to judge the phase threshold. The equivalent frequency obtained from the phase sum is more than those of all projected fringe patterns. In addition, the appropriate period combinations are also studied. The simulations and related experiments demonstrate the feasibility of the proposed method and the ability to improve the accuracy of the measurement results further.

Indexed as

3D measurementfringe projection profilometryphase unwrappingsynthesis phasethree-frequency heterodyne

Identifiers

PMID36502089
PMCPMC9738266

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.