基于数字影像处理技术的结缕草秋季枯黄动态分析研究

草业学报 ›› 2009, Vol. 18 ›› Issue (3): 94-102.

基于数字影像处理技术的结缕草秋季枯黄动态分析研究

贾蕴琪^1,2,曹致中^1*,王赟文^2*,孙洁峰³,何勇³

1.甘肃农业大学草业学院,甘肃兰州 730070;
2.中国农业大学动物科学技术学院草业科学系,
北京 100193;
3.青岛海源草坪有限公司,山东胶州266300

收稿日期:2008-10-20 出版日期:2009-06-20 发布日期:2009-06-20
作者简介:贾蕴琪(1984-),女,甘肃兰州人,在读硕士。 E-mail: jyqpanda@yahoo.com.cn
基金资助:
“十一五”科技支撑项目子课题(2006BAD01A19-3)资助。

Dynamic analysis of autumn color changes based on digital imaging technique in zoysiagrass

JIA Yun-qi^1,2, CAO Zhi-zhong¹, WANG Yun-wen², SUN Jie-feng³, HE Yong³

1. College of Paraculturea, Gansu Agricultural University, Lanzhou 730070, China;
2. Department of
Grassland Science, China Agricultural University, Beijing 100193, China;
3. Qingdao
Haiyuan Turf Management Co. Ltd, Jiaozhou 266300, China

Received:2008-10-20 Online:2009-06-20 Published:2009-06-20

摘要/Abstract

摘要： 本研究通过数码相机获取结缕草单株在秋季的株丛颜色变化图像,采用Sigmascan Pro 5.0图像分析软件,对4个结缕草材料的枯黄动态进行量化分析与比较。结果表明,用Sigmascan Pro 5.0进行结缕草单株秋季枯黄动态分析时,提取绿色像素点和黄色像素点的色相(H)和色饱和度(S)参数设置分别为H 32~107、S 10~100和H 10~32、S 25~100。参试的4个结缕草材料秋季枯黄由早到晚的顺序是:辽东结缕草、H₂品系、青岛结缕草和胶东青结缕草,枯黄期与起源地的地理纬度有一定的相关性。与传统的目测评分法结果相比,数字影像处理测定结缕草枯黄率及动态变化为实测值,具有可重复性,结果更为准确。

Abstract: The dynamics of autumn color changes in four zoysiagrass accessions was analyzed by Sigmascan Pro 5.0 image analysis software using the photos of individual plants taken at intervals by a digital camera. The appropriate settings for selecting the green pixels were hue (H) 32-107, saturation level (S) 10-100, and for yellow pixels was H 10-32, The ranking order of the four accessions for dormancy date (from early to late) was Z. japonica cv. Liaoning,H₂ strain, cv. Qingdao and Z. japonica var. pollida Nakai ex Honda cv. Jiaodong. It was concluded that there was a correlation between the date of autumn dormancy and the latitude of origin of the four accessions. Compared with traditional visual rating, the advantages of digital image analysis are greater repeatability and more accuracy.

中图分类号:

贾蕴琪,曹致中,王赟文,孙洁峰,何勇. 基于数字影像处理技术的结缕草秋季枯黄动态分析研究[J]. 草业学报, 2009, 18(3): 94-102.

JIA Yun-qi, CAO Zhi-zhong, WANG Yun-wen, SUN Jie-feng, HE Yong. Dynamic analysis of autumn color changes based on digital imaging technique in zoysiagrass[J]. Acta Prataculturae Sinica, 2009, 18(3): 94-102.

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