Optical Flow-Based Analysis of the Relationships between Leaf Wilting and Stem Diameter Variations in Tomato Plants
Cross-correlation coefficients. Cross-correlation graphs between and from 9:00 to 17:00 for each day (a–r). The red dotted line shows and the two black dotted lines represent the 99% confidence interval. A graph on April 10, 2018, and target plant 3’s lines on (a), (c), (d), (j), and (k) are not shown because of missing plant images on those days. A scatter plot represents the relationships between the maximum cross-correlation coefficients and the time lags (s).