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Gradient-Guided Parameter Mask for Multi-Scenario Image Restoration Under Adverse Weather

Jilong Guo, Haobo Yang, Mo Zhou, Xinyu Zhang

TL;DR

A novel Gradient-Guided Parameter Mask for Multi-Scenario Image Restoration under adverse weather, designed to effectively handle image degradation under diverse weather conditions without additional parameters is proposed.

Abstract

Removing adverse weather conditions such as rain, raindrop, and snow from images is critical for various real-world applications, including autonomous driving, surveillance, and remote sensing. However, existing multi-task approaches typically rely on augmenting the model with additional parameters to handle multiple scenarios. While this enables the model to address diverse tasks, the introduction of extra parameters significantly complicates its practical deployment. In this paper, we propose a novel Gradient-Guided Parameter Mask for Multi-Scenario Image Restoration under adverse weather, designed to effectively handle image degradation under diverse weather conditions without additional parameters. Our method segments model parameters into common and specific components by evaluating the gradient variation intensity during training for each specific weather condition. This enables the model to precisely and adaptively learn relevant features for each weather scenario, improving both efficiency and effectiveness without compromising on performance. This method constructs specific masks based on gradient fluctuations to isolate parameters influenced by other tasks, ensuring that the model achieves strong performance across all scenarios without adding extra parameters. We demonstrate the state-of-the-art performance of our framework through extensive experiments on multiple benchmark datasets. Specifically, our method achieves PSNR scores of 29.22 on the Raindrop dataset, 30.76 on the Rain dataset, and 29.56 on the Snow100K dataset. Code is available at: \href{https://github.com/AierLab/MultiTask}{https://github.com/AierLab/MultiTask}.

Gradient-Guided Parameter Mask for Multi-Scenario Image Restoration Under Adverse Weather

TL;DR

A novel Gradient-Guided Parameter Mask for Multi-Scenario Image Restoration under adverse weather, designed to effectively handle image degradation under diverse weather conditions without additional parameters is proposed.

Abstract

Removing adverse weather conditions such as rain, raindrop, and snow from images is critical for various real-world applications, including autonomous driving, surveillance, and remote sensing. However, existing multi-task approaches typically rely on augmenting the model with additional parameters to handle multiple scenarios. While this enables the model to address diverse tasks, the introduction of extra parameters significantly complicates its practical deployment. In this paper, we propose a novel Gradient-Guided Parameter Mask for Multi-Scenario Image Restoration under adverse weather, designed to effectively handle image degradation under diverse weather conditions without additional parameters. Our method segments model parameters into common and specific components by evaluating the gradient variation intensity during training for each specific weather condition. This enables the model to precisely and adaptively learn relevant features for each weather scenario, improving both efficiency and effectiveness without compromising on performance. This method constructs specific masks based on gradient fluctuations to isolate parameters influenced by other tasks, ensuring that the model achieves strong performance across all scenarios without adding extra parameters. We demonstrate the state-of-the-art performance of our framework through extensive experiments on multiple benchmark datasets. Specifically, our method achieves PSNR scores of 29.22 on the Raindrop dataset, 30.76 on the Rain dataset, and 29.56 on the Snow100K dataset. Code is available at: \href{https://github.com/AierLab/MultiTask}{https://github.com/AierLab/MultiTask}.

Paper Structure

This paper contains 22 sections, 7 equations, 7 figures, 3 tables.

Figures (7)

  • Figure 1: Illustration of the proposed method and the currently existing solutions. (a) The weather-specific methods; (b) the method of li2020all; (c) methods of zhu2023learning; (d) our method,
  • Figure 2: (a) The environmental illumination of various weather conditions. (b) Real-world scenes of different weather conditions.
  • Figure 3: Illustration of the Gradient-Guided Parameter Mask strategy. The model parameters are partitioned into common and task-specific components: (a) common parameters $\Theta_c$ retain stable features beneficial across multiple weather scenarios; (b) task-specific parameters $\Theta_t$ are adaptively learned for individual adverse conditions (e.g., rain, snow, raindrop), enhancing restoration performance while maintaining computational efficiency.
  • Figure 4: Visualization comparisons with previous all-weather-removal methods under rainy weather
  • Figure 5: Visualization comparisons with previous all-weather-removal methods under raindrop weather
  • ...and 2 more figures