# A Novel Context-Adaptive Fusion of Shadow and Highlight Regions for Efficient Sonar Image Classification

arXiv: https://arxiv.org/abs/2506.01445 · HTML: https://mlsanity.com/paper/2506.01445/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- Builds on 5 of its 23 references that are in the map.
- First posted on arXiv 2 Jun 2025.

## Builds on (most cited first, 5 of 5)

- [Grad-CAM: Visual Explanations from Deep Networks via Gradient-based Localization](https://mlsanity.com/paper/1610.02391/) (2016)
- [Perceptual Losses for Real-Time Style Transfer and Super-Resolution](https://mlsanity.com/paper/1603.08155/) (2016)
- [Self-supervised Learning for Sonar Image Classification](https://mlsanity.com/paper/2204.09323/) (2022)
- [S3Simulator: A benchmarking Side Scan Sonar Simulator dataset for Underwater Image Analysis](https://mlsanity.com/paper/2408.12833/) (2024)
- [Medical Image Denosing via Explainable AI Feature Preserving Loss](https://mlsanity.com/paper/2310.20101/) (2023)

## Built on by (most cited first, 1 of 1)

- [Supervised Contrastive Machine Unlearning of Background Bias in Sonar Image Classification with Fine-Grained Explainable AI](https://mlsanity.com/paper/2512.01291/) (2025)

## Abstract (arXiv)

Sonar imaging is fundamental to underwater exploration, with critical applications in defense, navigation, and marine research. Shadow regions, in particular, provide essential cues for object detection and classification, yet existing studies primarily focus on highlight-based analysis, leaving shadow-based classification underexplored. To bridge this gap, we propose a Context-adaptive sonar image classification framework that leverages advanced image processing techniques to extract and integrate discriminative shadow and highlight features. Our framework introduces a novel shadow-specific classifier and adaptive shadow segmentation, enabling effective classification based on the dominant region. This approach ensures optimal feature representation, improving robustness against noise and occlusions. In addition, we introduce a Region-aware denoising model that enhances sonar image quality by preserving critical structural details while suppressing noise. This model incorporates an explainability-driven optimization strategy, ensuring that denoising is guided by feature importance, thereby improving interpretability and classification reliability. Furthermore, we present S3Simulator+, an extended dataset incorporating naval mine scenarios with physics-informed noise specifically tailored for the underwater sonar domain, fostering the development of robust AI models. By combining novel classification strategies with an enhanced dataset, our work addresses key challenges in sonar image analysis, contributing to the advancement of autonomous underwater perception.