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Involution and BSConv Multi-Depth Distillation Network for Lightweight Image Super-Resolution

Created by
  • Haebom

Author

Akram Khatami-Rizi, Ahmad Mahmoudi-Aznaveh

Outline

This paper presents the Involution and BSConv Multi-Depth Distillation Network (IBMDN), a lightweight architecture for effective single-image super-resolution (SISR) even in resource-constrained environments. IBMDN consists of Involution and BSConv Multi-Depth Distillation Blocks (IBMDB), which combine involution and BSConv at various depths to perform efficient feature extraction while minimizing computational complexity, and the Contrast and High-Frequency Attention Block (CHFAB), which focuses on extracting high-frequency and contrast information. IBMDB's flexible design allows it to be integrated into various SISR frameworks, including information distillation, transformer-based, and GAN-based models. Experimental results demonstrate that it significantly reduces memory usage, parameter count, and FLOPs while improving both pixel-level accuracy and visual quality.

Takeaways, Limitations

Takeaways:
We present a lightweight architecture that addresses the high computational cost problem of existing CNN-based SISR models.
Efficient feature extraction is possible through various combinations of Involution and BSConv.
Improve visual quality with CHFAB.
Provides compatibility with various SISR frameworks.
Achieve performance improvements while reducing memory usage, number of parameters, and FLOPs.
Limitations:
A more detailed analysis is needed to determine how the proposed architecture performs compared to other state-of-the-art SISR models.
Additional performance evaluations on various datasets are needed.
Implementation and performance evaluation results on actual hardware were not presented.
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