A Method for Cropland Layer Extraction in Complex Scenes Integrating Edge Features and Semantic Segmentation

Yihang Lu, Lin Li, Wen Dong (), Yizhen Zheng, Xin Zhang, Jinzhong Zhang, Tao Wu and Meiling Liu
Additional contact information
Yihang Lu: Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou 730070, China
Lin Li: The Center of Agriculture Information of Chongqing, Chongqing 401121, China
Wen Dong: Key Laboratory of Remote Sensing and Digital Earth, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
Yizhen Zheng: Key Laboratory of Remote Sensing and Digital Earth, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
Xin Zhang: Key Laboratory of Remote Sensing and Digital Earth, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
Jinzhong Zhang: Key Laboratory of Remote Sensing and Digital Earth, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
Tao Wu: The Center of Agriculture Information of Chongqing, Chongqing 401121, China
Meiling Liu: The Center of Agriculture Information of Chongqing, Chongqing 401121, China

Agriculture, 2024, vol. 14, issue 9, 1-19

Abstract: Cultivated land is crucial for food production and security. In complex environments like mountainous regions, the fragmented nature of the cultivated land complicates rapid and accurate information acquisition. Deep learning has become essential for extracting cultivated land but faces challenges such as edge detail loss and limited adaptability. This study introduces a novel approach that combines geographical zonal stratification with the temporal characteristics of medium-resolution remote sensing images for identifying cultivated land. The methodology involves geographically zoning and stratifying the study area, and then integrating semantic segmentation and edge detection to analyze remote sensing images and generate initial extraction results. These results are refined through post-processing with medium-resolution imagery classification to produce a detailed map of the cultivated land distribution. The method achieved an overall extraction accuracy of 95.07% in Tongnan District, with specific accuracies of 92.49% for flat cultivated land, 96.18% for terraced cultivated land, 93.80% for sloping cultivated land, and 78.83% for forest intercrop land. The results indicate that, compared to traditional methods, this approach is faster and more accurate, reducing both false positives and omissions. This paper presents a new methodological framework for large-scale cropland mapping in complex scenarios, offering valuable insights for subsequent cropland extraction in challenging environments.

Keywords: cultivated land parcels; zone and stratify; edge characteristics; semantic segmentation; complex scenes (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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