Crop Growth Monitoring with Digital Images: A Review

doi:10.11924/j.issn.1000-6850.casb20200300278

Abstract

Abstract:

In order to carry out the quantitative management and the growth monitoring of the crop in field, this paper discussed the methods of digital image acquisition, digital image analysis and processing, and digital image crop growth index monitoring, summarized the basic principles, the acquisition and method of digital image, and concluded that the digital image could be used to monitor the crop coverage, leaf area index, biomass and nitrogen nutrition. It is suggested that the acquisition standard of digital image should be clear, the analysis method should be selected according to the specific situation, and at the same time, expert system should be used to evaluate crop growth from multiple perspectives in the future, so as to achieve the precise management of the crops.

Key words: digital image, crop, growth characteristics, feature parameter, monitoring

CLC Number:

Zhao Xinxin, Chen Huanxuan, Han Yingchun, Li Yabing, Feng Lu. Crop Growth Monitoring with Digital Images: A Review[J]. Chinese Agricultural Science Bulletin, 2021, 37(4): 146-153.

Figures/Tables 1

References 82

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文献来源	植株	拍摄高度/m	拍摄角度/°	图像分辨率/ppi	储存格式
李红军等^[27]	小麦	1.5	60	1024×768	TIFF
Gabriel等^[28]	玉米	1.3	—	2048×1536	—
Sakamoto等^[29]	玉米/大豆	3.4	—	2048×1536	JPEG
Pucell^[30]	大豆	1.5	70	640×480	JPEG
Himsedt等^[31]	草地	0.8	—	2592x1944	JPEG
孙中宇等^[32]	薇甘菊	50	—	8256x5504	NEF(RAW)
靳思雨等^[33]	水稻	550	—	1280x1024	JPEG

文献来源	植株	拍摄高度/m	拍摄角度/°	图像分辨率/ppi	储存格式
李红军等^[27]	小麦	1.5	60	1024×768	TIFF
Gabriel等^[28]	玉米	1.3	—	2048×1536	—
Sakamoto等^[29]	玉米/大豆	3.4	—	2048×1536	JPEG
Pucell^[30]	大豆	1.5	70	640×480	JPEG
Himsedt等^[31]	草地	0.8	—	2592x1944	JPEG
孙中宇等^[32]	薇甘菊	50	—	8256x5504	NEF(RAW)
靳思雨等^[33]	水稻	550	—	1280x1024	JPEG