应用深度学习管道来从低质量的历史RGB图像中对土地覆盖进行分类
Harold N Eyster1,2, Brian Beckage1,2
1Department of Plant Biology, University of Vermont, Burlington, VT, United States of America.
PeerJ. Computer science
|June 10, 2024
概括
深度学习精确地从低质量的空中图像中对历史土地覆盖进行分类. 温哥华从1995年到2021年经历了显著的植被损失和增加的路面.
科学领域:
- 遥感 遥感 遥感 遥感
- 地理空间分析的研究.
- 深度学习 (Deep Learning) 是一种深度学习.
背景情况:
- 准确的土地使用和土地覆盖 (LULC) 分类对于环境监测至关重要.
- 深度学习算法通过高分辨率数据提高了LULC分类的准确性.
- 描述历史土地覆盖面对于理解长期环境变化至关重要.
研究的目的:
- 开发和应用深度学习管道,以从低质量的航空图像中对历史土地覆盖进行分类.
- 评估1995年至2021年在加拿大温哥华的土地覆盖面变化.
- 证明深度学习对历史遥感数据分析的实用性.
主要方法:
- 使用了DeepLabv3+与一个状卷积神经网络架构.
- 在现代,高质量的卫星图像上训练模型,用于初始的土地覆盖分类.
- 使用手动注释和增强的历史RGB空中图像微调模型.
- 应用该模型来分类温哥华的历史土地覆盖面.
主要成果:
- 深度学习模型在分类历史土地覆盖方面取得了很高的准确性,与使用高质量图像的研究相美.
- 分析显示,在1995年至2021年期间,温哥华的植被覆盖面大幅减少.
- 具体的变化包括针叶树覆盖面的减少,路面的增加,以及树木和草地覆盖面的整体减少.
结论:
- 深度学习模型可以有效地对历史土地覆盖进行分类,即使是从退化图像.
- 开发的工作流程可以研究历史的土地覆盖动态和变化驱动因素.
- 这种方法可以应用于其他地区和时间段,以了解土地覆盖轨迹.
相关概念视频
01:25Methods of Obtaining Topography
63
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
63
01:18Reducing Line Loss
150
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
150
01:20Downsampling
153
When considering a sampled sequence with zero values between sampling instants, one can replace it by taking every N-th value of the sequence. At these integer multiples of N, the original and sampled sequences coincide. This process, known as decimation, involves extracting every N-th sample from a sequence, thereby creating a more efficient sequence.
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
153
01:30Thematic Layering in GIS
35
In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
35
01:20Deconvolution
154
Deconvolution, also known as inverse filtering, is the process of extracting the impulse response from known input and output signals. This technique is vital in scenarios where the system's characteristics are unknown, and they must be inferred from the observable signals.
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
154
01:29Topographic Surveying and Contours
77
Topographic surveying is critical for documenting the Earth's surface, focusing on capturing elevations, slopes, and natural and man-made features. It is essential in construction planning, water resource management, and land-use analysis. The primary outcome of such surveys is a topographic map, which uses contour lines to visually represent the shape and slope of the terrain, providing valuable insights into the landscape's characteristics.Contour lines are fundamental to understanding the...
77