Recent Advances in Deep Learning-Based Spatiotemporal Fusion Methods for Remote Sensing Images

Area of Science:

• Earth observation
• Remote sensing
• Geospatial analysis

Background:

• Satellite remote sensing is vital for environmental monitoring and resource management.
• Existing satellite imagery faces a spatial-temporal resolution trade-off, limiting data utility.
• Traditional spatiotemporal fusion methods struggle with complex scenarios.

Purpose of the Study:

• To review deep learning-based spatiotemporal fusion methods in remote sensing.
• To analyze and compare the strengths and limitations of various deep learning algorithms.
• To identify current challenges and propose future research directions in the field.

Main Methods:

• Literature review of deep learning techniques applied to spatiotemporal fusion.
• Analysis of convolutional neural networks (CNNs), generative adversarial networks (GANs), Transformers, and diffusion models.
• Comparative assessment of algorithm performance in complex fusion scenarios.

Main Results:

• Deep learning models offer efficient and accurate solutions for spatiotemporal fusion.
• Various deep learning architectures present distinct advantages and disadvantages.
• Significant progress has been made, but challenges remain in handling complex data.

Conclusions:

• Deep learning has revolutionized spatiotemporal fusion in remote sensing.
• Further research is needed to overcome limitations and advance fusion techniques.
• Future work should focus on developing more robust and versatile algorithms for Earth observation.