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报告来自东北农业大学的朱荣胜
老师。 此报告介绍了大量的相关工作,并且而非常值得动物领域进行借鉴。表型值是基因组时代的key。
此报告的提纲:
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此报告想回答的问题:
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0 背景介绍:
植物生态学学科,从描述到量化性状。大豆的特点:
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大豆表型:大致分为生长期和成熟些表型:
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测量表型,以前就是人工测量表型,现在是仪器自动识别,但是其准确性取决于其内部的算法。
测量表形态表型的算法特点: 算法功能=识别+分类+计算+测量
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第一部分 大豆生长期表型
1 基于三维重构的表型研究
拍摄方式
每次转15°,24张照片, 4个角度, 120张 照片
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流程:(图像预处理需要人为做)
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结果图:
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模型提取
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如冠层水平的表型提取(需要搭载TXL库):
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叶面积提取步骤:
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节间距:
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更复杂的性状采用了3D-BoNet
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结果分割图
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对模型进行估计:以人工测量的为参考值:
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结果:基于三维模型的测量≈人工测量
探索更大空间应用:田间三维重构,每块设置一个采样点(放大桶):
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全生育期重构结果:
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大桶与田间的植株比较:
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应用比较不同时期参试品种的表型比较:
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表型指纹:
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** 问题和挑战**
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2 基于深度学习的表型研究
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2.1 大豆花荚表型:
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图像花识别(转个拍摄):
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材料:
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困难:
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由于小目标识别,尽量提取多的特征,方法借鉴Faster R-CNN,改进为SoyflowerRCNN:
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试验流程:
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参数设置和评价指标:
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结果:
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模型对比:
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对时间序列图:
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独立样本验证:
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2.2 大豆的荚识别
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算法:
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结果比较:
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独立:
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独立验证:
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时间序列的动态分析:
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3 大豆花荚识别与计数融合模型
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算法:
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融合:
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结果:
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时间变化:
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使用融合的模型探索大豆落花落荚的规律
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结果:
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分布部分
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落花规律:
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落荚规律:
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困难与挑战:
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4 大豆病程的诊断
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例子(缺点破坏性取样):
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数据缺失,设计了新的算法,对叶子随机分割,再预测:
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示意算法代码:
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评价和调参数:
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结果: A为分割小图片,B为整个叶片判断结果
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第二部分 大豆成熟期表型
表型分类:
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取参考表型:
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拍照平台:
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模型算法:
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引入PCA
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算法:
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试验设计图:
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模型图示:
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结果:
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具有成熟期, 探索性分析
材料:
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特征提取:
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多个特征时,可以聚类:
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基于得到表型的GWAS分析
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群体机构图:
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使用,离心率表型
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困难和挑战
直接使用整个植株, 无人机识别时,产量预测
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第三部分 表型技术的应用和延长
智能表型品台:
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已经搭建的平台:
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作物:
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