本文選題：圖像處理 + SST圖像數(shù)字化和檢驗(yàn)��； 參考：《海洋科學(xué)進(jìn)展》2017年03期

【摘要】：近幾十年以來(lái),隨著海洋觀測(cè)技術(shù)的提高,海洋觀測(cè)數(shù)據(jù)大量增加,極大地推動(dòng)了海洋研究的發(fā)展,但由于某些原因,部分?jǐn)?shù)據(jù)只以圖像形式對(duì)外發(fā)布,很難獲取其原始數(shù)據(jù),這給科研工作的及時(shí)開展帶來(lái)了諸多不便。本文基于MATLAB軟件的圖像和數(shù)據(jù)處理功能,提出了一種二維等間距投影圖像的數(shù)字化方法,可實(shí)現(xiàn)圖像信息快速準(zhǔn)確的抓取,并以Levitus的全球海表溫度為例,驗(yàn)證了數(shù)字化過(guò)程的可靠性。數(shù)字化結(jié)果與原始數(shù)據(jù)比較顯示,平均誤差為0.147℃,絕對(duì)平均誤差為0.215℃,均方根誤差為0.275℃,數(shù)字化結(jié)果與原始數(shù)據(jù)吻合較好。最后,本文將該方法應(yīng)用到2001-02,2001-05,2001-08和2001-11衛(wèi)星反演的白冠覆蓋率圖像中,所獲數(shù)字化結(jié)果將應(yīng)用到下一步統(tǒng)計(jì)物理白冠模型的驗(yàn)證工作中。
[Abstract]:In recent decades, with the improvement of ocean observation technology, ocean observation data have been greatly increased, which has greatly promoted the development of ocean research. However, for some reasons, some of the data are only released in the form of images, so it is difficult to obtain the original data. This brings a lot of inconvenience to the timely development of scientific research work. Based on the image and data processing function of MATLAB software, this paper presents a digitization method of 2-D equidistant projection image, which can quickly and accurately capture the image information, and take the global sea surface temperature of Levitus as an example. The reliability of the digital process is verified. Compared with the original data, the digital results show that the average error is 0.147 鈩，

本文編號(hào)：1781933