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arXiv 2407.06354cs.CV

基于计算机视觉与机器学习的高通量表型分析

High-Throughput Phenotyping using Computer Vision and Machine Learning

Farragut High School(法拉格特高中)

Vivaan Singhvi, Langalibalele Lunga, Pragya Nidhi, Chris Keum, Varrun Prakash

AI总结:

本研究针对植物高通量表型分析中数据集标签缺失等问题,利用带物理标签的毛果杨图像数据集,结合OCR、图像分割与机器学习模型开展表型提取与预测,验证了方法可行性并指出EXIF标签信息缺失的局限。

摘要:

高通量表型分析指的是对植物表型进行无损且高效的评估。近年来,该领域与机器学习相结合,通过提升大规模数据集的处理效率、开发特定性状的提取方法,来优化植物表型分析流程。此前的研究通过将深度神经网络与自动化摄像头结合,提出了应对这些挑战的方法,但所研究的数据集通常缺失物理标签。\n本研究使用了橡树岭国家实验室提供的数据集,包含1672张毛果杨(Populus Trichocarpa)的图像,图像上带有白色标签,标注了处理方式(对照组或干旱组)、区块、行号、位置以及基因型。研究采用光学字符识别(OCR)读取植物上的这些标签,结合图像分割技术与机器学习算法进行形态分类,基于分类结果通过机器学习模型预测处理方式,并通过分析编码的EXIF标签来测定叶片大小以及表型之间的相关性。\n结果显示,本研究的OCR模型在非空文本提取任务中的准确率为94.31%,可将信息准确录入电子表格。分类模型对叶片形状、颜色以及褐色斑点程度的识别平均准确率为62.82%,对植物处理方式的识别准确率为60.08%。最后,研究发现EXIF标签中缺少几项关键信息,导致无法测定叶片大小;同时还有信息缺失,使得无法评估表型与环境条件之间的相关性。不过,未来的研究可在此基础上改进,以实现对这些特征的评估。

英文摘要:

High-throughput phenotyping refers to the non-destructive and efficient evaluation of plant phenotypes. In recent years, it has been coupled with machine learning in order to improve the process of phenotyping plants by increasing efficiency in handling large datasets and developing methods for the extraction of specific traits. Previous studies have developed methods to advance these challenges through the application of deep neural networks in tandem with automated cameras; however, the datasets being studied often excluded physical labels. In this study, we used a dataset provided by Oak Ridge National Laboratory with 1,672 images of Populus Trichocarpa with white labels displaying treatment (control or drought), block, row, position, and genotype. Optical character recognition (OCR) was used to read these labels on the plants, image segmentation techniques in conjunction with machine learning algorithms were used for morphological classifications, machine learning models were used to predict treatment based on those classifications, and analyzed encoded EXIF tags were used for the purpose of finding leaf size and correlations between phenotypes. We found that our OCR model had an accuracy of 94.31% for non-null text extractions, allowing for the information to be accurately placed in a spreadsheet. Our classification models identified leaf shape, color, and level of brown splotches with an average accuracy of 62.82%, and plant treatment with an accuracy of 60.08%. Finally, we identified a few crucial pieces of information absent from the EXIF tags that prevented the assessment of the leaf size. There was also missing information that prevented the assessment of correlations between phenotypes and conditions. However, future studies could improve upon this to allow for the assessment of these features.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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