[1]贾彪,马富裕.不同氮素处理棉花冠层图像颜色特征分析[J].江苏农业科学,2016,44(09):344-351.
 Jia Biao,et al.Analysis of color characteristics of cotton canopy images under different nitrogen rates[J].Jiangsu Agricultural Sciences,2016,44(09):344-351.
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不同氮素处理棉花冠层图像颜色特征分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第44卷
期数:
2016年09期
页码:
344-351
栏目:
农业工程与信息技术
出版日期:
2016-09-25

文章信息/Info

Title:
Analysis of color characteristics of cotton canopy images under different nitrogen rates
作者:
贾彪1 马富裕2
1.宁夏大学农学院,宁夏银川 750021;
2.石河子大学农学院,新疆石河子 832003
Author(s):
Jia Biaoet al
关键词:
棉花数字图像颜色特征指数生育进程动态变化
Keywords:
-
分类号:
S126
DOI:
-
文献标志码:
A
摘要:
为了探明颜色特征值参数与棉花生长发育的关系,选用北疆2个棉花主栽品种新陆早43号(XLZ 43)和新陆早48号(XLZ 48)为试验材料,于2013—2014年开展5个N素水平的小区试验,应用高清数码相机获取棉花群体冠层图像,通过数字图像识别系统提取各处理棉花群体冠层图像的颜色特征参数值,分析各颜色特征指数在棉花生育进程内的动态变化。结果表明,基于RGB模型的红光值(R)、绿光值(G)和基于HIS模型的亮度值(I)能充分反映棉花群体生长发育规律,且相关性好,其动态模拟曲线的函数通式为:y=a-b×ln(x+c);基于HIS模型的色度值(H),随不同施N量的增加,拟合参数呈现规律性变化,且相关性显著,其动态曲线满足通式:y=a+bx+cx2;而模型中蓝光值(B)的动态变化虽然满足二次函数关系,但不同N素水平间拟合参数值波动性大,规律不明显;饱和度值(S)动态模拟结果不理想,无规律可循,这说明S值受氮水平影响较小。因此颜色特征指数R、GI能作为棉花群体监测的量化指标。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-03-07
基金项目:国家自然科学基金(编号:31560339);宁夏回族自治区自然基金(编号:NZ15047);宁夏大学博士启动基金(编号:BQD2014011)。
作者简介:贾彪(1979—),男,甘肃镇原人,博士,讲师,主要从事精准农业信息化与作物水肥管理研究。Tel:(0951)2061874;E-mail:jiabiao2008@163.com。
更新日期/Last Update: 2016-09-25