ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

結(jié)合Beltrami流和遞歸濾波的高光譜圖像分類方法
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學基金項目(61275010,、61675051)、國家星火計劃項目(2014GA780056),、廣東省科技計劃項目(2017ZC0538),、廣東交通職業(yè)技術(shù)學院校級重點科研項目(2017-1-001)和廣東省高等職業(yè)教育品牌專業(yè)建設項目(2016gzpp044)


Hyperspectral Image Classification Method Combined Beltrami Flow and Recursive Filter
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統(tǒng)計
  • |
  • 參考文獻
  • |
  • 相似文獻
  • |
  • 引證文獻
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    提出一種結(jié)合Beltrami流濾波和域轉(zhuǎn)換遞歸濾波的高光譜圖像分類算法(BFRF-SVM)。分別利用Beltrami流對主成分分析(PCA)降維后的高光譜圖像濾波方法和域轉(zhuǎn)換遞歸濾波方法對全光譜波段進行濾波,,兩種空間信息進行線性融合后交由支持向量機(SVM)完成分類,。實驗表明,相比使用光譜信息,、高光譜降維,、空譜結(jié)合的SVM分類方法,以及邊緣保持濾波和遞歸濾波以及形態(tài)學濾波特征方法,,本文提出的BFRF-SVM方法對高光譜圖像的分類精度有較大提高,,驗證了該方法的有效性。

    Abstract:

    In the past, spatial feature extraction of hyperspectral image was usually limited to one feature extraction, and the more comprehensive spatial feature was not obtained. An improved scheme was put forward according to existent methods. An algorithm of classification (BFRF-SVM) was proposed, which was combined with spatial information obtained by Beltrami flow and domain transform recursive filter. Firstly, the spatial feature was extracted by Beltrami flow on hyperspectral data whose dimensions were reduced by principal component analysis (PCA), and the spatial correlation feature was obtained by domain transform recursive filter for all bands. Secondly, the two kinds of feature were combined, which were classified by SVM. The BFRF-SVM classification method was implemented on the hyperspectral data of Indian Pines and Pavia. The following results were obtained. In the first place, the overall accuracy (OA) of Indian Pines was 96.01% and that of Pavia was 97.46%, which were 12~15 percentage points higher than that of SVM, 12~16 percentage points higher than that of PCA-SVM, 2~12 percentage points higher than that of SGB-SVM, SBL-SVM and SGD-SVM, 4~5 percentage points higher than that of EPF, 1~3 percentage points higher than that of IFRF, and 2~6 percentage points higher than that of SMP-SVM, respectively, showing very good performance in hyperspectral classification. In the second place, although the training samples were only 7% of Indian Pines and 3% of Pavia, the OA of both can reach 96.01% and 97.46%, respectively, which removed the salt and pepper noise in the classification map obviously. In the last place, although the training samples were reduced to 4% and 0.5% for Indian Pines and Pavia, the OA can be over 91% and 90%, respectively. When the training samples were increased to 10% and 4.5%, the OA can exceed 97% and 98%, respectively. The effectiveness of BFRF-SVM was fully verified in the hyperspectral classification with good stability. The experiments showed that the BFRF-SVM algorithm was better than original SVM with the pure spectrum information, dimensionality reduction, the spatial-spectral information, the method of edge-preserving filtering and recursive filtering, and the morphological feature based method. The performance of hyperspectral image classification algorithm, i.e. BFRF-SVM, was greatly improved, and the effectiveness of the method was fully verified. The method can be applied into the field of classification and identification for agriculture and forest.

    參考文獻
    相似文獻
    引證文獻
引用本文

廖建尚,王立國,郝思媛.結(jié)合Beltrami流和遞歸濾波的高光譜圖像分類方法[J].農(nóng)業(yè)機械學報,2018,49(1):42-50. LIAO Jianshang, WANG Liguo, HAO Siyuan. Hyperspectral Image Classification Method Combined Beltrami Flow and Recursive Filter[J]. Transactions of the Chinese Society for Agricultural Machinery,2018,49(1):42-50.

復制
分享
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2017-05-31
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2018-01-10
  • 出版日期:
文章二維碼