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

基于U-Net的葡萄種植區(qū)遙感識別方法
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

寧夏智慧農業(yè)產業(yè)技術協同創(chuàng)新中心項目(2017DC53)、國家自然科學基金項目(41771315)和國家重點研發(fā)計劃項目(2020YFD1100601)


Remote Sensing Recognition Method of Grape Planting Regions Based on U-Net
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:

    為提高葡萄種植區(qū)遙感識別精度,,基于高分二號衛(wèi)星遙感影像,,對U-Net網絡進行改進:從空間和通道維度自適應校準特征映射,以增強有意義的特征,,抑制不相關的特征,,提升地物邊緣分割精度;減少下采樣次數,,使用混合擴張卷積代替常規(guī)卷積操作,,以增大卷積核感受野,降低圖像分辨率的損失,,提高對不同尺寸地物的識別能力,。實驗結果表明,本文模型在測試集上的像素準確率,、平均交并比和頻權交并比分別為96.56%,、93.11%、93.35%,,比FCN-8s網絡分別提高了5.17,、9.57、9.17個百分點,,比U-Net網絡提高了2.39,、4.59、4.39個百分點,。此外,,本文通過消融實驗和特征可視化證明了注意力模塊和混合擴張卷積在精度提升上的可行性。本文模型結構簡單,、參數量少,,能夠識別不同面積的葡萄種植區(qū),邊緣分割效果良好,。

    Abstract:

    The accurate acquisition of the spatial distribution of grape planting regions from remote sensing imagery is of great significance for optimizing the layout of grape planting regions and promoting the structural adjustment of grape industry. Due to the problems of the large differences in the size, unfixed spectral characteristics and complex background environment of the objects, it brings many challenges to accurate crop remote sensing recognition. In order to improve the accuracy of crop remote sensing recognition, a pixel-level accurate recognition method was proposed for grape planting regions based on the GF-2 satellite remote sensing imagery and the U-Net model was taken as the basic skeleton. The main improvements to U-Net were recalibrating the feature maps separately along channel and space adaptively, to boost meaningful features and improve the accuracy of edge segmentation, while suppressing weak ones, and reducing the number of downsampling and using hybrid dilated convolution instead of conventional convolution operation, to cut down the loss of image resolution and improve the recognition of objects of different shapes and sizes. The experiments showed that the pixel accuracy, mean intersection over union (MIoU), and frequency weighted intersection over union (FWIoU) of the model on the test set were 96.56%, 93.11% and 93.35%, respectively, which were 5.17 percentage points, 9.57 percentage points and 9.17 percentage points higher than those of the FCN-8s model, and 2.39 percentage points, 4.59 percentage points and 4.39 percentage points better than those of the original U-Net model. In addition, the impacts of the attention modules and hybrid dilated convolution on this model were analyzed through ablation experiments. The proposed model was simple with few parameters, capable of identifying different sizes of grape planting regions with fine edge segmentation effect, and it can provide an effective way to improve the accuracy of crop remote sensing recognition.

    參考文獻
    相似文獻
    引證文獻
引用本文

張宏鳴,張國良,朱珊娜,陳歡,梁會,孫志同.基于U-Net的葡萄種植區(qū)遙感識別方法[J].農業(yè)機械學報,2022,53(4):173-182. ZHANG Hongming, ZHANG Guoliang, ZHU Shanna, CHEN Huan, LIANG Hui, SUN Zhitong. Remote Sensing Recognition Method of Grape Planting Regions Based on U-Net[J]. Transactions of the Chinese Society for Agricultural Machinery,2022,53(4):173-182.

復制
分享
文章指標
  • 點擊次數:
  • 下載次數:
  • HTML閱讀次數:
  • 引用次數:
歷史
  • 收稿日期:2021-04-04
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2021-04-26
  • 出版日期:
文章二維碼