搜索结果: 1-15 共查到“测绘科学技术 U-Net”相关记录21条 . 查询时间(0.064 秒)
南京农业大学专利：基于改进U-net网络的无人机麦田遥感图像分割方法
U-net网络 无人机 麦田遥感图像 分割方法
2023/11/27
本发明提出基于改进U?net网络的无人机麦田遥感图像分割方法，通过加入注意力模块的方式加强目标特征学习，同时通过改进损失函数的方法对权重进行重分配，从而解决遥感图像中目标背景类别分布不均的问题；最后，结合形状先验信息对分割结果进行进一步修正。本发明利用采集的无人机麦田数据集进行训练和模型验证，试验结果表明，分割准确率和平均交并比分别达93.31％和73.91％，较好解决了田埂分割遮挡和缺失等问题。
TARGETS MASK U-NET FOR WIND TURBINES DETECTION IN REMOTE SENSING IMAGES
object detection VHRRSI wind turbines shadow wide-field detector U-Net
2018/5/14
To detect wind turbines precisely and quickly in very high resolution remote sensing images (VHRRSI) we propose target mask U-Net. This convolution neural network (CNN), which is carefully designed to...
RELATIONSHIP BETWEEN LANDCOVER PATTERN AND SURFACE NET RADIATION IN AN COASTAL CITY
Surface net radiation Land covers pattern Landscape metrics Correlation analysis Stepwise regression Xiamen city
2016/12/1
Taking Xiamen city as the study area this research first retrieved surface net radiation using meteorological data and Landsat 5 TM images of the four seasons in the year 2009. Meanwhile the 65 differ...
LOCAL SCALE MAPPING OF NET PRIMARY PRODUCTION IN TROPICAL RAIN FOREST USING MODIS SATELLITE DATA
Local scale Mapping Net Primary Production MODIS Tropical Rain Forest
2016/1/3
Satellite data from Moderate Resolution Imaging Radiometer (MODIS) is currently being used to extract net primary production (NPP) at global scale. Over the years, small scale on-ground flux tower mea...
JICA NET DISTANCE EDUCATION ON REMOTE SENSING AND GIS FOR DEVELOPING COUNTRIES
Education Remote Sensing Spatial Information Sciences e-Learning Computer Assisted Training
2015/12/22
Japan International Cooperation Agency (JICA) has initiated a three year-project of JICA NET Distance Education on remote sensing and GIS for developing countries since 2004FY in cooperation with Japa...
GABOR FILTER AND NEURAL NET APPROACH FOR BUILT UP AREA MAPPING IN HIGH RESOLUTION SATELLITE IMAGES
Built up Texture Multi Channel Filtering
2015/8/28
In the satellite images, built up area is manifested as texture. Therefore, built up area analysis can be approached using texture
concepts. It is observed in many gray scale high resolution satellit...
THE VISUALIZATION OF THE SOLID IMAGE ON THE WEB: A NEW TOOL FOR 3D INFORMATION ON THE NET BASED ON AN OPEN SOURCE ENVIRONMENT
3D information Web Open Source
2015/8/28
Full 3D geographic information has always been a real problem and it still causes problems today. Although computer software and
Photogrammetric and LIDAR techniques make it possible to create full 3...
SPATIO-TEMPORAL PATTERN OF AGRO ECOSYSTEM NET PRIMARY PRODUCTIVITY OF INDIA: A PRELIMINARY ANALYSIS USING SPOT VGT DATA
NPP SPOT VGT crops
2015/8/28
Indian landmass with 1.45% of the world’s total geographical area accounts for approximately 2.7–5.5% to the global NPP
estimates with agriculture contributing to more than sixty percent. This paper ...
JICA NET Distance Education on Remote Sensing and GIS for Developing Countries
distance education developing countries
2015/8/24
Japan International Cooperation Agency (JICA) has initiated JICA NET Distance
Education on remote sensing (RS) and GIS for developing countries since 2004 in
cooperation with Japan Society of Phot...
A Multi-scale GIS Database Model Based on Petri Net
Petri Net Scale Cartographic generalization
2015/8/17
In cartographic generalization, cartographic entities would change with scale. State and event are two basic elements to describe
these changes. However, current hierarchical multi-scale representati...
High resolution remote sensing image segmentation based on graph theory and fractal net evolution approach
Image Segmentation Graph Based FNEA Merging Criterion
2015/7/27
Image segmentation is the foundation of further object-oriented image analysis, understanding and recognition. It is one of the key technologies in high resolution remote sensing applications. In this...
URBAN ROAD NET EXTRACTION INTEGRATING INTERNAL EVALUATION MODELS
Road Extraction Urban Areas Quality Measures
2015/3/24
This paper focuses on internal quality measures for automatic road extraction from aerial images taken over urban areas. The motivation
of this work is twofold: Firstly, any automatic system should p...
Influence of Agricultural Developments on Net Primary Productivity (NPP) in the Semi-arid Region of India: A Study using GloPEM Model
Agricultural net primary productivity Agricultural mechanization Semi-arid region Irrigated area Fertilizer use
2014/12/15
The present study aims to assess the effect of agricultural developments on inter-annual variations in the agricultural Net Primary Productivity (NPP) of selected districts of the semi-arid region of ...
Estimation of Net Radiation using satellite based data inputs
Net Surface Radiation Insolation Shortwave Albedo Air Temperature Emissivity Satellite based Data Inputs
2014/12/15
Daily net surface radiation fluxes are estimated for Indian land mass at spatial grid intervals of 0.1 degree. Two approaches are employed to obtain daily net radiation for four sample days viz., Nove...
Prioritising Carbon Sequestration Areas in Southern Queensland using Time Series MODIS Net Primary Productivity (NPP) Imagery
Carbon MODIS Net Primary Productivity Ecosystem Change Spatial Dynamic
2014/12/15
The aim of this study was to develop a method that will use satellite imagery to identify areas of high forest growth and productivity, as a primary input in prioritising revegetation sites for carbon...