想象植物的反应:通过温室中的负担得起的成像技术,可以获得新的见解
Matthew M Conley1, Reagan W Hejl1, Desalegn D Serba1
1U.S. Arid-Land Agricultural Research Center, U.S. Department of Agriculture, Agricultural Research Service, Maricopa, AZ 85138, USA.
Sensors (Basel, Switzerland)
|October 26, 2024
概括
消费级摄影提供了一种负担得起的方法,用于草草中的植物表型. 图像分析显示,纠正的红绿蓝图像与草草的关键特征之间存在很强的相关性,这凸显了对标准化纠正的需要.
科学领域:
- 农业科学 农业科学
- 植物科学 植物科学
- 园艺园艺 园艺园艺
- 遥感 遥感 遥感 遥感
背景情况:
- 全球气候压力需要有效和负担得起的植物表型法.
- 消费级摄影为捕捉植物表型特征提供了一个可行的,低成本的替代方案.
- 图像校正对植物表型化中衍生计算的影响仍未得到充分研究.
研究的目的:
- 为了证明消费者级摄影在草草表型化中的潜力.
- 从红绿蓝 (RGB) 图像中推导出新的计算,并评估它们与既有指标的相关性.
- 评估这些计算对常见的图像校正和文件格式的敏感性.
主要方法:
- 草草 lysimeters 用定制灯箱和消费级摄像头拍摄了八周的时间.
- 图像分析侧重于覆盖面积,颜色指标,以及对图像校正 (JPEG,TIFF,镜头扭曲,色彩校正) 的敏感性.
- 结果与活性光谱反射率数据和视觉质量,生产力和用水量的测量进行了比较.
主要成果:
- 经过校正的RGB图像显示出显著的相关性:黄色分数面积与视觉质量 (r = -0.89),深绿色颜色指数与剪切生产率 (r = 0.61),以及与用水的指数组合 (r = -0.60).
- 绿色分数面积与正常化差异植被指数 (r = 0.91) 和红色反射率 (r = -0.87) 强烈相关.
- 新的计算显示了与光谱指数的高相关性:一个带有红边规范差异的色比 (r = 0.90),另一个带有近红外 (r = 0.90) 的指数.
结论:
- 消费级RGB摄影对于测量草皮草中的植物处理效果是有效的.
- 新的图像衍生计算显示了替代或补充传统的表型化方法的强大潜力.
- 图像校正协议的标准化对于在植物表型化中获得可靠和生物学相关的数据至关重要.
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