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DRWKV: Focusing on Object Edges for Low-Light Image Enhancement

Created by
  • Haebom

Author

Xuecheng Bai, Yuxiang Wang, Boyu Hu, Qinyuan Jie, Chuanzhi Xu, Hongru Xiao, Kechen Li, Vera Chung

Outline

In this paper, we propose a novel model, Detailed Receptance Weighted Key Value (DRWKV), for image enhancement in extreme low-light environments. DRWKV effectively separates illumination and edge structures by incorporating the proposed Global Edge Retinex (GER) theory to enhance edge fidelity. In addition, we introduce Evolving WKV Attention, a spiral scan mechanism that captures spatial edge continuity and models irregular structures more effectively. In addition, we design Bilateral Spectrum Aligner (Bi-SAB) and custom MS2-Loss to co-align luminance and chromatic features to enhance visual naturalness and mitigate artifacts. Through extensive experiments on five low-light image enhancement (LLIE) benchmarks, we demonstrate that DRWKV achieves state-of-the-art performance in PSNR, SSIM, and NIQE while maintaining low computational complexity. In addition, we verify its generalization ability by improving performance on low-light multi-object tracking tasks.

Takeaways, Limitations

Takeaways:
Achieved excellent performance (PSNR, SSIM, NIQE) in image enhancement under extreme low-light environments.
Edge preservation and natural image restoration are achieved through the proposed GER theory, Evolving WKV Attention, and Bi-SAB.
It shows excellent generalization ability, demonstrating improved performance in downstream tasks such as low-light multi-object tracking.
Achieved high performance while maintaining low computational complexity.
Limitations:
The paper does not explicitly mention the specific Limitations. Additional experiments or analyses are needed to identify Limitations.
Performance degradation may occur for certain types of low-light images.
Further in-depth validation of the generalization ability of the proposed model is needed.
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