Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning

Characteristics of Zona Pellucida (ZP), particularly its thickness, is a key indicator of human blastocyst (day-5 embryo) quality. Therefore, ZP segmentation is an important step towards achieving automatic embryo quality assessment. In this paper, a novel approach based on boosting ensemble of hybr...

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Main Authors: Reza Moradi Rad, Parvaneh Saeedi, Jason Au, Jon Havelock
Format: Article
Language:English
Published: Elsevier 2018-01-01
Series:Informatics in Medicine Unlocked
Online Access:http://www.sciencedirect.com/science/article/pii/S2352914818301679
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author Reza Moradi Rad
Parvaneh Saeedi
Jason Au
Jon Havelock
author_facet Reza Moradi Rad
Parvaneh Saeedi
Jason Au
Jon Havelock
author_sort Reza Moradi Rad
collection DOAJ
description Characteristics of Zona Pellucida (ZP), particularly its thickness, is a key indicator of human blastocyst (day-5 embryo) quality. Therefore, ZP segmentation is an important step towards achieving automatic embryo quality assessment. In this paper, a novel approach based on boosting ensemble of hybrid complementary learning is proposed to segment Zona Pellucida in human blastocyst images. First, an inner-ZP localization method is proposed to separate the ZP from the heavily textured area inside a blastocyst. Then, a deep Hierarchical Neural Network (HiNN) is proposed to segment ZP area. The hierarchical nature of the proposed network enables learning features with respect to their spatial location in the embryo. Finally, a Self-supervised Image-Specific Refinement (SISR) strategy is proposed as a complementary step to boost the performance. The proposed system is a hybrid approach in the sense that the HiNN learns the intra-correlation among images, while the SISR takes into account the inter-correlation within the query image. Experimental results confirm that the proposed method is capable of identifying ZP area with average Precision, Recall, Accuracy and Jaccard Index of 85.2%, 92.0%, 95.6% and 78.1%, respectively. The proposed HiNN system outperforms state of the art by 4.9% in Precision, 11.2% in Recall, 3.6% in Accuracy and 10.7% in Jaccard Index. Keywords: Zona pellucida, Human embryo, IVF, Medical image analysis, Deep neural network
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spelling doaj.art-39efadcba9a54a018e4b16bcbb68ff912022-12-22T01:56:53ZengElsevierInformatics in Medicine Unlocked2352-91482018-01-0113112121Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learningReza Moradi Rad0Parvaneh Saeedi1Jason Au2Jon Havelock3School of Engineering Science, Simon Fraser University, Burnaby, BC, Canada; Corresponding author.School of Engineering Science, Simon Fraser University, Burnaby, BC, CanadaPacific Centre for Reproductive Medicine, Burnaby, BC, CanadaReproductive Endocrinology and Infertility Special Interest Group, Canadian Fertility Andrology Society, Montreal, QC, CanadaCharacteristics of Zona Pellucida (ZP), particularly its thickness, is a key indicator of human blastocyst (day-5 embryo) quality. Therefore, ZP segmentation is an important step towards achieving automatic embryo quality assessment. In this paper, a novel approach based on boosting ensemble of hybrid complementary learning is proposed to segment Zona Pellucida in human blastocyst images. First, an inner-ZP localization method is proposed to separate the ZP from the heavily textured area inside a blastocyst. Then, a deep Hierarchical Neural Network (HiNN) is proposed to segment ZP area. The hierarchical nature of the proposed network enables learning features with respect to their spatial location in the embryo. Finally, a Self-supervised Image-Specific Refinement (SISR) strategy is proposed as a complementary step to boost the performance. The proposed system is a hybrid approach in the sense that the HiNN learns the intra-correlation among images, while the SISR takes into account the inter-correlation within the query image. Experimental results confirm that the proposed method is capable of identifying ZP area with average Precision, Recall, Accuracy and Jaccard Index of 85.2%, 92.0%, 95.6% and 78.1%, respectively. The proposed HiNN system outperforms state of the art by 4.9% in Precision, 11.2% in Recall, 3.6% in Accuracy and 10.7% in Jaccard Index. Keywords: Zona pellucida, Human embryo, IVF, Medical image analysis, Deep neural networkhttp://www.sciencedirect.com/science/article/pii/S2352914818301679
spellingShingle Reza Moradi Rad
Parvaneh Saeedi
Jason Au
Jon Havelock
Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning
Informatics in Medicine Unlocked
title Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning
title_full Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning
title_fullStr Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning
title_full_unstemmed Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning
title_short Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning
title_sort human blastocyst s zona pellucida segmentation via boosting ensemble of complementary learning
url http://www.sciencedirect.com/science/article/pii/S2352914818301679
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