文章摘要
海康威视网络数字相机在植被物候监测的应用初探
Xiaojie Zhen1,2,Haitao Zhou1,2,Shudong Zhou1,2 , Shiqiang Chen2,3*(1Beijing Techno Solutions Ltd., Beijing, 100089,China;
投稿时间:2020-11-10  修订日期:2020-11-10
DOI:
中文关键词: Hikvision数字相机、StarDot数字相机、NDVI、GCC、EXG、EVI、
英文关键词: Hikvision  PhenoCam, StarDot  PhenoCam, NDVI,GCC, EXG, EVI
基金项目:无锡市科技发展资金(G20193056)
作者单位E-mail
甄晓杰 江苏天诺基业生态科技有限公司,无锡 zhenxj@technosolutions.cn 
周海涛 江苏天诺基业生态科技有限公司,无锡  
周曙东 江苏天诺基业生态科技有限公司,无锡  
陈世强 中国科学院西北生态环境资源研究院  
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中文摘要:
      物候相机是物候网建设的重要观测设备,本文开展了对比Hikvision相机(中国)和StarDot相机(美国)的物候指标提取性能的实验研究。研究表明:两款相机的NDVI最为一致,其中,从StarDot提取的生长季长度等于人眼识别长度,与从Hikvision中提取值仅相差1天;两者的GCC和EXG受油菜花季特殊的黄花覆盖及StarDot中的固定白平衡设置存在差异;而两者的EVI均不能够有效反映出油菜的生长节律。Hikvision相机在我国的物候网观测中可以起到替代作用。
英文摘要:
      Phenology camera is an important observation equipment in the construction of phenology network. In this paper, an experimental study on phenological metrics extraction performance of Hikvision camera (China) and StarDot camera (USA) was conducted. The study showed that the NDVI of the two cameras were the most consistent. The length of the growing season extracted from StarDot was equal to the length of human eye recognition, which was only one day different from the value extracted from Hikvision. GCC and EXG of the two are different from each other due to the special yellow flowers coverage of rape and the fixed white balance setting in StarDot. The EVI of both could not effectively reflect the growth rhythm of rape. Hikvision camera can play a substitute role in phenological network observation in China.
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