中圖分類號(hào)：S-3 文獻(xiàn)標(biāo)志碼：A DOI: 10.16157/j.issn.0258-7998.233870 中文引用格式： 楊振宇，湯浩，葛瑋，等. 成像角度與葉齡對(duì)葉片葉綠素?zé)晒獬上竦挠绊懷芯縖J]. 電子技術(shù)應(yīng)用，2023，49(5)：14-18. 英文引用格式： Yang Zhenyu，Tang Hao，Ge Wei，et al. Study on the effects of imaging angle and leaf age on leaf chlorophyll fluorescence imaging[J]. Application of Electronic Technique，2023，49(5)：14-18.
Study on the effects of imaging angle and leaf age on leaf chlorophyll fluorescence imaging
Yang Zhenyu1，2，Tang Hao1，2，Ge Wei1，2，Xia Qian1，2，Tong Dezhi3，Fu Lijiang1，2，Guo Ya1，2
(1.Key Laboratory of Advanced Process Control for Light Industry， Ministry of Education， Jiangnan University， Wuxi 214122， China； 2.School of IoT， Jiangnan University， Wuxi 214122， China； 3.Chloview Science and Technology （Wuxi） Co.， Ltd.， Wuxi 214000， China)
Abstract： Chlorophyll fluorescence imaging, as an efficient means of obtaining plant photosynthesis and physiological state information, is often used in many fields such as smart agricultural information perception. The current large-scale chlorophyll fluorescence imaging technology lacks the mechanistic connection with the microscopic leaf-level chlorophyll fluorescence imaging, ignoring the impact of imaging angle and leaf age on chlorophyll fluorescence imaging, which limits its application in large-scale agricultural intelligence assessment and role in decision-making. Aiming at the above problems, this paper designed a set of chlorophyll fluorescence acquisition equipment capable of multi-angle imaging to explore the relationship between chlorophyll fluorescence imaging, imaging angle and leaf age.A total of 60 leaves of epipremnum aureum,camphor and euonymus, representing vines, trees and shrubs were subjected to imaging experiments, and the fluorescence intensity, F_v/F_mand R_fd three typical fluorescence indicators were analyzed. The experimental results show that the imaging angle has a significant impact on the chlorophyll fluorescence imaging, and the increase of the imaging angle will lead to the decrease of the fluorescence parameter value, and the effect on different types of plants is also different. Leaf age also affects chlorophyll fluorescence imaging, and the imaging parameters of growing leaves are better than those of mature leaves.
Key words : photosynthesis；chlorophyll fluorescence imaging；imaging angle；leaf age
