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RSS FeedsRemote Sensing, Vol. 14, Pages 4908: A Convolutional Neural Network for Large-Scale Greenhouse Extraction from Satellite Images Considering Spatial Features (Remote Sensing)

 
 

30 september 2022 18:00:16

 
Remote Sensing, Vol. 14, Pages 4908: A Convolutional Neural Network for Large-Scale Greenhouse Extraction from Satellite Images Considering Spatial Features (Remote Sensing)
 


Deep learning-based semantic segmentation technology is widely applied in remote sensing and has achieved excellent performance in remote sensing image target extraction. Greenhouses play an important role in the development of agriculture in China. However, the rapid expansion of greenhouses has had a series of impacts on the environment. Therefore, the extraction of large-scale greenhouses is crucial for the sustainable development of agriculture and environmental governance. It is difficult for existing methods to acquire precise boundaries. Therefore, we propose a spatial convolutional long short-term memory structure, which can fully consider the spatial continuity of ground objects. We use multitask learning to improve the network’s ability to extract image boundaries and promote convergence through auxiliary loss. We propose a superpixel optimization module to optimize the main-branch results of network semantic segmentation using more precise boundaries obtained by advanced superpixel segmentation techniques. Compared with other mainstream methods, our proposed structure can better consider spatial information and obtain more accurate results. We chose Shandong Province, China, as the study area and used Gaofen-1 satellite remote sensing images to create a new greenhouse dataset. Our method achieved an F1 score of 77%, a significant improvement over mainstream semantic segmentation networks, and it could extract greenhouse results with more precise boundaries. We also completed large-scale greenhouse mapping for Shandong Province, and the results show that our proposed modules have great potential in greenhouse extraction.


 
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Remote Sensing, Vol. 14, Pages 4905: Power Pylon Reconstruction from Airborne LiDAR Data Based on Component Segmentation and Model Matching (Remote Sensing)
Remote Sensing, Vol. 14, Pages 4910: AC−WGAN−GP: Generating Labeled Samples for Improving Hyperspectral Image Classification with Small−Samples (Remote Sensing)
 
 
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