前主序星 的英文怎麼說
中文拼音 [qiánzhǔxùxīng]
前主序星
英文
pre-main sequence star-
Among them the gray level co - occurrence matrix ( glcm ) and gray gradient co - occurrence matrix ( ggcm ) methods, which attributed to the statistic textural analysis scheme were then chosen to extract the textural features of five kind areas on satellite images. in the second part the principle of classification and bp neural network were introduced. combined with textural features, the improved bp neural network successfully performed on the classification of the satellite images
論文的第一部分介紹了進行紋理特徵研究的一些典型的方法，利用其中的基於統計的紋理分析法中的灰度共生矩陣以及灰度一梯度共生矩陣法，分析了衛星雲圖上五類區域的紋理特性；第二部分主要介紹了遙感圖像分類原理以及神經網路中的bp演算法，在對演算法原理進行深入理解的基礎上，把紋理特徵與神經網路進行組合，實現對衛星雲圖進行分類分析；第三部分內容是在前面圖像分類結果的基礎上，對序列圖像用相關匹配法進行運動分析，反演雲跡風風場。Sarex 2003 began yesterday and will last until saturday ( november 29 ). prior to the conduct of the exercise, an international civil aviation organization ( icao ) sar seminar officiated by mr albert lam, director - general of civil aviation was held successfully in hong kong on monday ( november 24 ) and tuesday ( november 25 ). its objective is to refresh the awareness of the participants regarding states responsibilities on sar and to keep them informed of the latest development in sar techniques, practices and supporting infrastructure. more than 30 representatives from 10 states attended the seminar
演習舉行前，由民航處處長林光宇主持的一個國際民用航空組織（國際民航組織）搜索及拯救研討會，已於星期一（十一月二十四日）和星期二（十一月二十五日）在香港成功舉行，其目的是讓與會者得以趁機重溫國際民航組織成員國在搜救方面的職責，以及向他們介紹各種最新的搜救技巧、程序及支援設施。
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