The Influence of Whether Atmospheric Correction Carried out or not and NDVI Threshold Selection on the Green Tide Area Extracted Precision of Remote Sensing | |
Sun, Li'e1,2; Cui, Tingwei1; Qin, Ping3; Cui, Wenlian1 | |
2014 | |
关键词 | green tide HJ-1 CCD atmospheric correction NDVI threshold precision influence |
卷号 | 102 |
页码 | 768-774 |
英文摘要 | Based on HJ-1 CCD data, the influence of whether atmospheric correction carried out or not and NDVI threshold selection on the green tide area extracted precision of remote sensing was studied. The results indicate that (1) The NDVI standard deviation values of green tide and seawater mixed sample area increase after atmospheric correction which is beneficial to extracting green tide information. (2)Green tide area and NDVI threshold display linearity. The slopes obtained from 8 images range in 0.47-8.91. Green tide area changed by 12%similar to 40% due to NDVI threshold changed. Therefore, how to choose a suitable threshold is very important to accurately extract the green tide area. |
会议录 | INFORMATION TECHNOLOGY FOR RISK ANALYSIS AND CRISIS RESPONSE |
会议录出版者 | ATLANTIS PRESS |
会议录出版地 | 29 AVENUE LAVMIERE, PARIS, 75019, FRANCE |
语种 | 中文 |
WOS研究方向 | Computer Science ; Environmental Sciences & Ecology ; Remote Sensing |
WOS记录号 | WOS:000358967800139 |
内容类型 | 会议论文 |
源URL | [http://ir.fio.com.cn:8080/handle/2SI8HI0U/27091] |
专题 | 自然资源部第一海洋研究所 |
通讯作者 | Sun, Li'e |
作者单位 | 1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Qingdao Environm Monitoring Ctr, Qingdao 266003, Peoples R China 3.Ocean Univ China, Qingdao 266100, Peoples R China |
推荐引用方式 GB/T 7714 | Sun, Li'e,Cui, Tingwei,Qin, Ping,et al. The Influence of Whether Atmospheric Correction Carried out or not and NDVI Threshold Selection on the Green Tide Area Extracted Precision of Remote Sensing[C]. 见:. |
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