Research on Optimization of Processing Parcels of New Bare Land Based on Remote Sensing Image Change Detection

Abstract

To meet the demands of natural resource monitoring, land development supervision, and other applications for high-precision and high-frequency information extraction from constructed land change, this paper focused on automatic feature extraction and data processing optimization methods for newly constructed bare land based on remote sensing images. A generalized deep convolutional neural network change detection model framework integrating multi-scale information was developed for the automatic extraction of change information. To resolve the problems in the automatic extraction of new bare land parcels, such as mis-extractions and parcel fragmentation, a proximity evaluation model that integrates the confidence-based semantic distance and spatial distance between parcels and their overlapping area is proposed to perform parcel aggregation. Additionally, we propose a complete set of optimized processing techniques from pixel pre-processing to vector post-processing. The results demonstrated that the aggregation method developed in this study is more targeted and effective than ArcGIS for the automatically extracted land change parcels. Additionally, compared with the initial parcels, the total number of optimized parcels decreased by more than 50% and the false detection rate decreased by approximately 30%. These results indicate that this method can markedly reduce the overall data volume and false detection rate of automatically extracted parcels through post-processing under certain conditions of the model and samples and provide technical support for applying the results of automatic feature extraction in engineering practices.

BLEI: Research on a Novel Remote Sensing Bare Land Extraction Index

“…As for deep learning, He et al introduced a novel semantic segmentation model, Deeplabv3+-M-CBAM (MobileNetV2-Convolutional Block Attention Module), using channel and spatial attention mechanisms to achieve high-precision bare land extraction [30]. Additionally, a deep Siamese convolutional neural network model was designed to automate feature extraction and bare land change detection [31]. However, the aforementioned machine learning and deep learning methods primarily belong to supervised classification.…”

Processamento Digital de Imagens para Mapeamento de Uso e Cobertura da Terra: Uma Revisão de Literatura

“…Isso se torna relevante, pois o uso e a cobertura da terra configuram fontes de dados para análises em sistema de informação geográfica que têm sido usados para uma ampla gama de aplicações geoespaciais, tais como, planejamento urbano, modelagem geográfica, recursos hídricos, transportes, dentre outros (AHMED et al, 2019). Assim, o MUCT possibilita o monitoramento de recursos naturais, supervisão do desenvolvimento da terra e outras aplicações para extração de informações de alta precisão e alta frequência das mudanças na Terra (LIU et al, 2023). Além disso, para Liangyun et al (2023), o MUCT, por meio do PDI, está na lista dos principais temas submetidos aos periódicos especializados entre 2021 e 2022, representando 44,5% das submissões.…”