Cultivated land information extraction in UAV imagery based on deep convolutional neural network and transfer learning

2017 ◽  
Vol 14 (4) ◽  
pp. 731-741 ◽  
Author(s):  
Heng Lu ◽  
Xiao Fu ◽  
Chao Liu ◽  
Long-guo Li ◽  
Yu-xin He ◽  
...  
Author(s):  
Tathagat Banerjee ◽  
Aditya Jain ◽  
Sibi Chakkaravarthy Sethuraman ◽  
Suresh Chandra Satapathy ◽  
S. Karthikeyan ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Yang Wang ◽  
Moyang Li

Modern urban landscape is a simple ecosystem, which is of great significance to the sustainable development of the city. This study proposes a landscape information extraction model based on deep convolutional neural network, studies the multiscale landscape convolutional neural network classification method, constructs a landscape information extraction model based on multiscale CNN, and finally analyzes the quantitative effect of deep convolutional neural network. The results show that the overall kappa coefficient is 0.91 and the classification accuracy is 93% by calculating the confusion matrix, production accuracy, and user accuracy. The method proposed in this study can identify more than 90% of water targets, the user accuracy and production accuracy are 99.78% and 91.94%, respectively, and the overall accuracy is 93.33%. The method proposed in this study is obviously better than other methods, and the kappa coefficient and overall accuracy are the best. This study provides a certain reference value for the quantitative evaluation of modern urban landscape spatial scale.


2021 ◽  
pp. 1-10
Author(s):  
Gayatri Pattnaik ◽  
Vimal K. Shrivastava ◽  
K. Parvathi

Pests are major threat to economic growth of a country. Application of pesticide is the easiest way to control the pest infection. However, excessive utilization of pesticide is hazardous to environment. The recent advances in deep learning have paved the way for early detection and improved classification of pest in tomato plants which will benefit the farmers. This paper presents a comprehensive analysis of 11 state-of-the-art deep convolutional neural network (CNN) models with three configurations: transfers learning, fine-tuning and scratch learning. The training in transfer learning and fine tuning initiates from pre-trained weights whereas random weights are used in case of scratch learning. In addition, the concept of data augmentation has been explored to improve the performance. Our dataset consists of 859 tomato pest images from 10 categories. The results demonstrate that the highest classification accuracy of 94.87% has been achieved in the transfer learning approach by DenseNet201 model with data augmentation.


2019 ◽  
Vol 46 (2) ◽  
pp. 746-755 ◽  
Author(s):  
Michal Byra ◽  
Michael Galperin ◽  
Haydee Ojeda‐Fournier ◽  
Linda Olson ◽  
Mary O'Boyle ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document