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@ARTICLE{Jollet:1014709,
author = {Jollet, Dirk and Junker-Frohn, Laura and Steier, Angelina
and Meyer-Lüpken, T. and Müller-Linow, Mark},
title = {{A} new computer vision workflow to assess yield quality
traits in bush bean ({P}haseolus vulgaris {L}.)},
journal = {Smart agricultural technology},
volume = {5},
issn = {2772-3755},
address = {[Amsterdam]},
publisher = {Elsevier B.V.},
reportid = {FZJ-2023-03404},
pages = {100306 -},
year = {2023},
note = {Grant: IGF-Vorhaben 20943N},
abstract = {Quality assessments of horticultural products are still
often carried out manually in breeding contexts, although
computer vision systems have been reported to be able to
overcome the limitations of manual assessments, e.g. in
automated food processing. Here, a new computer vision
workflow for quality trait assessment of bush bean pods
(Phaseolus vulgaris) is introduced to replace physical
measurements and visual scorings of expert breeders, while
increasing consistency, accuracy, and objectivity of the
measurements. A closed imaging box was used to take images
of bean pods from 40 different varieties to develop and
validate computer vision workflows to assess breeding
relevant shape and color traits of bean pods. For the
detection of beaks and peduncles via a neural network
approach (Mask R-CNN) accuracies of $95.5\%$ were reached.
Computer vision estimations and manual reference
measurements of length and caliber were highly correlated
(R=0.99). Also, curvature and brightness of green bean pods
well- correlated with visual scorings of expert breeders
(R=0.81, R=-0.87). A Random Forest Classifier was trained to
distinguish yellow and extremely rare bicolored pods and a
cross validation accuracy of 83 $±7\%$ was reached. An
additional backlight LED panel enabled non-destructive
analysis of seed formation inside the pod and promising
results were achieved using a Faster R-CNN model. This new
computer vision workflow provides the opportunity to replace
well-established manual workflows for quality trait
assessment of bush bean pods as it is more objective,
reliable, and considerably faster.},
cin = {IBG-2},
ddc = {630},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001133851100001},
doi = {10.1016/j.atech.2023.100306},
url = {https://juser.fz-juelich.de/record/1014709},
}