HiCD: Change detection in quality-varied images via hierarchical correlation distillation
C Pang, X Weng, J Wu, Q Wang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
IEEE Transactions on Geoscience and Remote Sensing, 2024•ieeexplore.ieee.org
Advanced change detection (CD) techniques primarily target image pairs of equal and high
quality. However, variations in imaging conditions and platforms frequently lead to image
pairs with distinct qualities: one image being high-quality, while the other being low-quality.
These disparities in image quality present significant challenges for understanding image
pairs semantically and extracting change features, ultimately resulting in a notable decline in
performance. To tackle this challenge, we introduce an innovative training strategy …
quality. However, variations in imaging conditions and platforms frequently lead to image
pairs with distinct qualities: one image being high-quality, while the other being low-quality.
These disparities in image quality present significant challenges for understanding image
pairs semantically and extracting change features, ultimately resulting in a notable decline in
performance. To tackle this challenge, we introduce an innovative training strategy …
Advanced change detection (CD) techniques primarily target image pairs of equal and high quality. However, variations in imaging conditions and platforms frequently lead to image pairs with distinct qualities: one image being high-quality, while the other being low-quality. These disparities in image quality present significant challenges for understanding image pairs semantically and extracting change features, ultimately resulting in a notable decline in performance. To tackle this challenge, we introduce an innovative training strategy grounded in knowledge distillation. The core idea revolves around leveraging task knowledge acquired from high-quality image (hq-image) pairs to guide the model’s learning process when dealing with image pairs that exhibit differences in quality. Additionally, we develop a hierarchical correlation distillation approach (involving self-correlation, cross correlation, and global correlation). This approach compels the student model to replicate the correlations inherent in the teacher model, rather than focusing solely on individual features. This ensures effective knowledge transfer while maintaining the student model’s training flexibility. Through extensive experimentation, we demonstrate the remarkable superiority of our methodologies in scenarios involving only resolution disparities, single-degradation, and multidegradation quality differences. The codes will be released at https://github.com/fitzpchao/HiCD .
ieeexplore.ieee.org
Showing the best result for this search. See all results