Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT images

Abstract The rice panicle seed setting rate is extremely important for calculating rice yield and performing genetic analysis. Unlike machine vision, X‐ray computed tomography (CT) imaging is a nondestructive technique that provides direct information on the internal and external structure of rice p...

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Main Authors: Huihua Kong, Ping Chen
Format: Article
Language:English
Published: Wiley 2021-05-01
Series:Plant Direct
Subjects:
Online Access:https://doi.org/10.1002/pld3.323
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author Huihua Kong
Ping Chen
author_facet Huihua Kong
Ping Chen
author_sort Huihua Kong
collection DOAJ
description Abstract The rice panicle seed setting rate is extremely important for calculating rice yield and performing genetic analysis. Unlike machine vision, X‐ray computed tomography (CT) imaging is a nondestructive technique that provides direct information on the internal and external structure of rice panicles. However, occlusion and adhesion of panicles and grains in a CT image sequence make these objects difficult to identify, which in turn hinders accurate determination of the seed setting rate of rice panicles. Therefore, this paper proposes a method based on a mask region convolutional neural network (Mask R‐CNN) for feature extraction and three‐dimensional (3‐D) recognition of CT images of rice panicles. X‐ray CT feature characterization was combined with the Mask R‐CNN algorithm to perform feature extraction and classification of a panicle and grains in each layer of the CT sequence. The Euclidean distance between adjacent layers was minimized to extract the features of a 3‐D panicle and grains. The results were used to calculate the rice panicle seed setting rate. The proposed method was experimentally verified using eight sets of different rice panicles. The results showed that the proposed method can efficiently identify and count plump grains and blighted grains to achieve an accuracy above 99% for the seed setting rate.
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spelling doaj.art-9c08e2d69e7a4c239647cbb5faac2a222022-12-21T19:45:41ZengWileyPlant Direct2475-44552021-05-0155n/an/a10.1002/pld3.323Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT imagesHuihua Kong0Ping Chen1North University of China Taiyuan ChinaNorth University of China Taiyuan ChinaAbstract The rice panicle seed setting rate is extremely important for calculating rice yield and performing genetic analysis. Unlike machine vision, X‐ray computed tomography (CT) imaging is a nondestructive technique that provides direct information on the internal and external structure of rice panicles. However, occlusion and adhesion of panicles and grains in a CT image sequence make these objects difficult to identify, which in turn hinders accurate determination of the seed setting rate of rice panicles. Therefore, this paper proposes a method based on a mask region convolutional neural network (Mask R‐CNN) for feature extraction and three‐dimensional (3‐D) recognition of CT images of rice panicles. X‐ray CT feature characterization was combined with the Mask R‐CNN algorithm to perform feature extraction and classification of a panicle and grains in each layer of the CT sequence. The Euclidean distance between adjacent layers was minimized to extract the features of a 3‐D panicle and grains. The results were used to calculate the rice panicle seed setting rate. The proposed method was experimentally verified using eight sets of different rice panicles. The results showed that the proposed method can efficiently identify and count plump grains and blighted grains to achieve an accuracy above 99% for the seed setting rate.https://doi.org/10.1002/pld3.3233‐D recognitionmask R‐CNNrice phenotypeseed setting rateX‐ray CT imaging
spellingShingle Huihua Kong
Ping Chen
Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT images
Plant Direct
3‐D recognition
mask R‐CNN
rice phenotype
seed setting rate
X‐ray CT imaging
title Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT images
title_full Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT images
title_fullStr Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT images
title_full_unstemmed Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT images
title_short Mask R‐CNN‐based feature extraction and three‐dimensional recognition of rice panicle CT images
title_sort mask r cnn based feature extraction and three dimensional recognition of rice panicle ct images
topic 3‐D recognition
mask R‐CNN
rice phenotype
seed setting rate
X‐ray CT imaging
url https://doi.org/10.1002/pld3.323
work_keys_str_mv AT huihuakong maskrcnnbasedfeatureextractionandthreedimensionalrecognitionofricepaniclectimages
AT pingchen maskrcnnbasedfeatureextractionandthreedimensionalrecognitionofricepaniclectimages