Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures

Underwater structures are crucial for national economic and social development. However, because of their complex environment, they are susceptible to damage during service. This damage should be prevented to minimize casualties and economic loss. Therefore, this study investigates the problems of d...

Full description

Saved in:
Bibliographic Details
Main Authors: Longsheng Bao, Chunyan Zhao, Xingwei Xue, Ling Yu
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2020/8760324
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832550480648077312
author Longsheng Bao
Chunyan Zhao
Xingwei Xue
Ling Yu
author_facet Longsheng Bao
Chunyan Zhao
Xingwei Xue
Ling Yu
author_sort Longsheng Bao
collection DOAJ
description Underwater structures are crucial for national economic and social development. However, because of their complex environment, they are susceptible to damage during service. This damage should be prevented to minimize casualties and economic loss. Therefore, this study investigates the problems of disease identification and area statistics of underwater structures. To this end, the Dark-Retinex (DR) algorithm that can enhance the image of underwater structure defects is proposed. The algorithm consists of a combination of a dark channel algorithm and the Retinex algorithm. This study analyzes the current research status of underwater image processing technology, designs the overall framework of the DR algorithm, and uses the underwater structure disease image to verify the algorithm. Comparing the effect of the image with only the dark channel defogging and DR algorithm processing, the DR algorithm is observed to achieve “defogging” processing of underwater structural disease images to achieve better enhancement effects. Moreover, for accurate disease area statistics, the binary morphology and optimal threshold segmentation theories are combined to perform disease edge screening and remove interference information. Finally, accurate statistics of the proportion of diseased pixels are achieved, as well as the quantitative detection of surface diseases of underwater structures. After actual operational verification, the improved image dehazing and parallel boundary screening algorithms can achieve better application results to detect underwater structure defects and disease statistics. The objective evaluation shows that the DR algorithm facilitates image processing, can obtain relatively high-quality target images, and can solve the problems of time-consuming and labor-intensive detection of underwater structures, with significant risks and limitations. This helps pave the way for (1) the actual engineering of surface structure detection of underwater structures, (2) future storage in the database and assessment of hazard levels, and (3) a guide for engineering technicians to take corresponding maintenance measures.
format Article
id doaj-art-435827e1494248b18302f32c002a6d05
institution Kabale University
issn 1687-8434
1687-8442
language English
publishDate 2020-01-01
publisher Wiley
record_format Article
series Advances in Materials Science and Engineering
spelling doaj-art-435827e1494248b18302f32c002a6d052025-02-03T06:06:32ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/87603248760324Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater StructuresLongsheng Bao0Chunyan Zhao1Xingwei Xue2Ling Yu3School of Traffic Engineering, Shenyang Jianzhu University, Shenyang 110168, Liaoning, ChinaSchool of Traffic Engineering, Shenyang Jianzhu University, Shenyang 110168, Liaoning, ChinaSchool of Traffic Engineering, Shenyang Jianzhu University, Shenyang 110168, Liaoning, ChinaSchool of Traffic Engineering, Shenyang Jianzhu University, Shenyang 110168, Liaoning, ChinaUnderwater structures are crucial for national economic and social development. However, because of their complex environment, they are susceptible to damage during service. This damage should be prevented to minimize casualties and economic loss. Therefore, this study investigates the problems of disease identification and area statistics of underwater structures. To this end, the Dark-Retinex (DR) algorithm that can enhance the image of underwater structure defects is proposed. The algorithm consists of a combination of a dark channel algorithm and the Retinex algorithm. This study analyzes the current research status of underwater image processing technology, designs the overall framework of the DR algorithm, and uses the underwater structure disease image to verify the algorithm. Comparing the effect of the image with only the dark channel defogging and DR algorithm processing, the DR algorithm is observed to achieve “defogging” processing of underwater structural disease images to achieve better enhancement effects. Moreover, for accurate disease area statistics, the binary morphology and optimal threshold segmentation theories are combined to perform disease edge screening and remove interference information. Finally, accurate statistics of the proportion of diseased pixels are achieved, as well as the quantitative detection of surface diseases of underwater structures. After actual operational verification, the improved image dehazing and parallel boundary screening algorithms can achieve better application results to detect underwater structure defects and disease statistics. The objective evaluation shows that the DR algorithm facilitates image processing, can obtain relatively high-quality target images, and can solve the problems of time-consuming and labor-intensive detection of underwater structures, with significant risks and limitations. This helps pave the way for (1) the actual engineering of surface structure detection of underwater structures, (2) future storage in the database and assessment of hazard levels, and (3) a guide for engineering technicians to take corresponding maintenance measures.http://dx.doi.org/10.1155/2020/8760324
spellingShingle Longsheng Bao
Chunyan Zhao
Xingwei Xue
Ling Yu
Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
Advances in Materials Science and Engineering
title Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
title_full Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
title_fullStr Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
title_full_unstemmed Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
title_short Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
title_sort improved dark channel defogging algorithm for defect detection in underwater structures
url http://dx.doi.org/10.1155/2020/8760324
work_keys_str_mv AT longshengbao improveddarkchanneldefoggingalgorithmfordefectdetectioninunderwaterstructures
AT chunyanzhao improveddarkchanneldefoggingalgorithmfordefectdetectioninunderwaterstructures
AT xingweixue improveddarkchanneldefoggingalgorithmfordefectdetectioninunderwaterstructures
AT lingyu improveddarkchanneldefoggingalgorithmfordefectdetectioninunderwaterstructures