Plant leaf veins coupling feature representation and measurement method based on DeepLabV3+

Liu, Xiaobao; Xu, Biao; Gu, Wen; Yin, Yunfei; Wang, Hongcheng

doi:10.3389/fpls.2022.1043884

Cited by 5 publications

(2 citation statements)

References 58 publications

(50 reference statements)

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“…As the essential constituents of the leaves, the leaf veins play a crucial role in transporting assimilates [41]. A recent study found that Camellia oleifera mainly adopts a passive phloem loading mode [23].…”

Section: Regulation Of the Assimilate Transport In Leaves Of Differen...mentioning

confidence: 99%

Diurnal Regulation of Leaf Photosynthesis Is Related to Leaf-Age-Dependent Changes in Assimilate Accumulation in Camellia oleifera

Zhang

Wang

et al. 2023

Plants

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In order to clarify the mechanism of diurnal changes in photosynthesis of leaves of different leaf ages in Camellia oleifera, current-year leaves (CLs) and annual leaves (ALs) were used as the test materials to analyze the diurnal changes in photosynthetic parameters, assimilate contents and enzyme activities, as well as structural differences and expression levels of sugar transport regulating genes. The rate of net photosynthesis in CLs and ALs was highest in the morning. During the day, there was a decrease in the CO2 assimilation rate, and this decrease was greater in ALs than in CLs at midday. The maximal efficiency of photosystem II (PSII) photochemistry (Fv/Fm) showed a decreasing trend as the sunlight intensity increased, but no significant difference between CLs and ALs was found. Compared with CLs, ALs showed a greater decrease in the carbon export rate at midday and the levels of sugars and starch increased significantly in ALs, accompanied by higher enzyme activity of sucrose synthetase and ADP-glucose pyrophosphorylase. In addition, compared with CLs, ALs had a larger leaf vein area and higher leaf vein density, as well as higher expression levels of sugar transport regulating genes during the day. It is concluded that the excessive accumulation of assimilate is an important factor contributing to the midday depression of photosynthesis in Camellia oleifera annual leaves on a sunny day. Sugar transporters may play an important regulatory role in excessive accumulation of assimilate in leaves.

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Section: Regulation Of the Assimilate Transport In Leaves Of Differen...mentioning

confidence: 99%

Diurnal Regulation of Leaf Photosynthesis Is Related to Leaf-Age-Dependent Changes in Assimilate Accumulation in Camellia oleifera

Zhang

Wang

et al. 2023

Plants

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“…Since the manual measurement of leaf veins is a time-consuming and labor-intensive task, it has been of great interest to automate the process. In recent years, automatic leaf vein segmentation has been performed with classic computer vision approaches [8], [9], [10], [11], traditional machine-learning approaches with hand-crafted feature extraction [12], [13], [14] as well as few deep learning approaches [15].…”

Section: Related Work a Leaf Vein Extraction In Laboratory Settingsmentioning

confidence: 99%

Few-leaf Learning: Weed Segmentation in Grasslands

Güldenring

Boukas

Ravn

et al. 2021

2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

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Autonomous robotic weeding in grasslands requires robust weed segmentation. Deep learning models can provide solutions to this problem, but they need to be trained on large amounts of images, which in the case of grasslands are notoriously difficult to obtain and manually annotate. In this work we introduce Few-leaf Learning, a concept that facilitates the training of accurate weed segmentation models and can lead to easier generation of weed segmentation datasets with minimal human annotation effort. Our approach builds upon the fact that each plant species within the same field has relatively uniform visual characteristics due to similar environmental influences. Thus, we can train a field-and-day-specific weed segmentation model on synthetic training data stemming from just a handful of annotated weed leaves. We demonstrate the efficacy of our approach for different fields and for two common grassland weeds: Rumex obtusifolius (broad-leaved dock) and Cirsium vulgare (spear thistle). Our code is publicly available at https://github.com/RGring/WeedAnnotator.

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A fine segmentation model of flue-cured tobacco’s main veins based on multi-level-scale features of hybrid fusion

Xu,

Liu,

et al. 2024

Soft Comput

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Plant leaf veins coupling feature representation and measurement method based on DeepLabV3+

Cited by 5 publications

References 58 publications

Diurnal Regulation of Leaf Photosynthesis Is Related to Leaf-Age-Dependent Changes in Assimilate Accumulation in Camellia oleifera

Diurnal Regulation of Leaf Photosynthesis Is Related to Leaf-Age-Dependent Changes in Assimilate Accumulation in Camellia oleifera

Few-leaf Learning: Weed Segmentation in Grasslands

A fine segmentation model of flue-cured tobacco’s main veins based on multi-level-scale features of hybrid fusion

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