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题名: Digital camera based measurement of crop cover for wheat yield prediction
作者: Pan, G; Li, FM(李凤民); Sun, GJ
收录类别: CPCI-S ; EI
出版日期: 2007
会议名称: IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期: JUL 23-27, 2007
会议地点: Barcelona, SPAIN
英文摘要: Quantification of vegetation cover can facilitate an improved understanding of ecosystem function and crop yield. Current methods of cover measurement can be divided into field surveys and remote sensing, with their associated advantages and disadvantages. Digital camera images provide high temporal and spatial resolution at low cost than satellite images. A method to accurately and conveniently estimate crop cover from digital camera images is presented. The digital camera images were converted from red-green-blue to hue-saturation-intensity color space. Hue segmentation technique enhanced the characteristics of plant tissues, and identified green tissues easily. Vegetation and non-vegetation binary pseudo-color images were produced and crop cover was calculated for each plot. By comparing leaf area index and wheat yield with time series cover data from the 2005 growing season, two results were obtained: (1) there were high correlations between cover and leaf area index at four stages (r(2) = 0.88, 0.96, 0.97, and 0.92); (2) crop cover at 80 - 90 days after sowing can be used to predict the wheat yield with good results. Our results suggest this method is an accurate and efficient means of measuring vegetation cover in cropland.
关键词: vegetation cover ; digital camera ; RGB to HSI ; image segmentation ; wheat yield
作者部门: [Pan, Gang ; Li, Feng-min ; Sun, Guo-jun] Lanzhou Univ, Sch Life Sci, MOE Key Lab Arid & Grassland Ecol, Lanzhou 730000, Peoples R China
通讯作者: Sun, GJ (reprint author), Lanzhou Univ, Sch Life Sci, MOE Key Lab Arid & Grassland Ecol, Lanzhou 730000, Peoples R China.
学科分类: Engineering; Geology; Remote Sensing
会议录: IGARSS: 2007 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-12: SENSING AND UNDERSTANDING OUR PLANET
页码: 797-800
出版者: IEEE
出版地: NEW YORK
语种: 英语
WOS记录号: WOS:000256657300203
EI记录号: 20080811105148
IR记录号: WOS:000256657300203
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内容类型: 会议论文
URI标识: http://ir.lzu.edu.cn/handle/262010/184712
Appears in Collections:生命科学学院_会议论文

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Recommended Citation:
Pan, G,Li, FM,Sun, GJ. Digital camera based measurement of crop cover for wheat yield prediction[C]. 见:IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Barcelona, SPAIN. JUL 23-27, 2007.
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