Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor Images

Among researchers using traditional and new machine learning and deep learning techniques, 2D medical image segmentation models are popular. Additionally, 3D volumetric data recently became more accessible, as a result of the high number of studies conducted in recent years regarding the creation of...

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Main Authors: Jakhongir Nodirov, Akmalbek Bobomirzaevich Abdusalomov, Taeg Keun Whangbo
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/17/6501
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author Jakhongir Nodirov
Akmalbek Bobomirzaevich Abdusalomov
Taeg Keun Whangbo
author_facet Jakhongir Nodirov
Akmalbek Bobomirzaevich Abdusalomov
Taeg Keun Whangbo
author_sort Jakhongir Nodirov
collection DOAJ
description Among researchers using traditional and new machine learning and deep learning techniques, 2D medical image segmentation models are popular. Additionally, 3D volumetric data recently became more accessible, as a result of the high number of studies conducted in recent years regarding the creation of 3D volumes. Using these 3D data, researchers have begun conducting research on creating 3D segmentation models, such as brain tumor segmentation and classification. Since a higher number of crucial features can be extracted using 3D data than 2D data, 3D brain tumor detection models have increased in popularity among researchers. Until now, various significant research works have focused on the 3D version of the U-Net and other popular models, such as 3D U-Net and V-Net, while doing superior research works. In this study, we used 3D brain image data and created a new architecture based on a 3D U-Net model that uses multiple skip connections with cost-efficient pretrained 3D MobileNetV2 blocks and attention modules. These pretrained MobileNetV2 blocks assist our architecture by providing smaller parameters to maintain operable model size in terms of our computational capability and help the model to converge faster. We added additional skip connections between the encoder and decoder blocks to ease the exchange of extracted features between the two blocks, which resulted in the maximum use of the features. We also used attention modules to filter out irrelevant features coming through the skip connections and, thus, preserved more computational power while achieving improved accuracy.
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spelling doaj.art-d733c9ecaae74d7aa59be3a5d945d8952023-11-23T14:09:31ZengMDPI AGSensors1424-82202022-08-012217650110.3390/s22176501Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor ImagesJakhongir Nodirov0Akmalbek Bobomirzaevich Abdusalomov1Taeg Keun Whangbo2Department of IT Convergence Engineering, Gachon University, Sujeong-Gu, Seongnam-Si 461-701, Gyeonggi-Do, KoreaDepartment of Computer Engineering, Gachon University, Sujeong-Gu, Seongnam-Si 461-701, Gyeonggi-Do, KoreaDepartment of Computer Engineering, Gachon University, Sujeong-Gu, Seongnam-Si 461-701, Gyeonggi-Do, KoreaAmong researchers using traditional and new machine learning and deep learning techniques, 2D medical image segmentation models are popular. Additionally, 3D volumetric data recently became more accessible, as a result of the high number of studies conducted in recent years regarding the creation of 3D volumes. Using these 3D data, researchers have begun conducting research on creating 3D segmentation models, such as brain tumor segmentation and classification. Since a higher number of crucial features can be extracted using 3D data than 2D data, 3D brain tumor detection models have increased in popularity among researchers. Until now, various significant research works have focused on the 3D version of the U-Net and other popular models, such as 3D U-Net and V-Net, while doing superior research works. In this study, we used 3D brain image data and created a new architecture based on a 3D U-Net model that uses multiple skip connections with cost-efficient pretrained 3D MobileNetV2 blocks and attention modules. These pretrained MobileNetV2 blocks assist our architecture by providing smaller parameters to maintain operable model size in terms of our computational capability and help the model to converge faster. We added additional skip connections between the encoder and decoder blocks to ease the exchange of extracted features between the two blocks, which resulted in the maximum use of the features. We also used attention modules to filter out irrelevant features coming through the skip connections and, thus, preserved more computational power while achieving improved accuracy.https://www.mdpi.com/1424-8220/22/17/6501brain imagedeep learningCNNU-Netpretrained MobileNetV2attention modules
spellingShingle Jakhongir Nodirov
Akmalbek Bobomirzaevich Abdusalomov
Taeg Keun Whangbo
Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor Images
Sensors
brain image
deep learning
CNN
U-Net
pretrained MobileNetV2
attention modules
title Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor Images
title_full Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor Images
title_fullStr Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor Images
title_full_unstemmed Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor Images
title_short Attention 3D U-Net with Multiple Skip Connections for Segmentation of Brain Tumor Images
title_sort attention 3d u net with multiple skip connections for segmentation of brain tumor images
topic brain image
deep learning
CNN
U-Net
pretrained MobileNetV2
attention modules
url https://www.mdpi.com/1424-8220/22/17/6501
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AT akmalbekbobomirzaevichabdusalomov attention3dunetwithmultipleskipconnectionsforsegmentationofbraintumorimages
AT taegkeunwhangbo attention3dunetwithmultipleskipconnectionsforsegmentationofbraintumorimages