用潜在扩散模型增强图像数据,提升显著性预测精度。
Data Augmentation via Latent Diffusion for Saliency Prediction

- 基于光照与语义属性的交叉注意力机制,精准编辑图像光度特征
- 在多个公开数据集上显著提升显著性模型性能,最高提升12.3%
- 生成结果更符合人类视觉注意力,适合视觉感知研究者
显著性预测模型受限于标注数据的多样性与数量。标准数据增强方法如旋转、裁剪会改变场景结构,影响显著性。本文提出一种新型深度显著性预测数据增强方法,可在不破坏真实场景复杂性的前提下编辑自然图像。由于显著性依赖高低层特征,该方法同时学习颜色、对比度、亮度和类别等光度与语义属性。为此,引入显著性引导的交叉注意力机制,实现对特定图像区域光度属性的定向编辑,从而增强局部显著性。实验表明,该方法持续提升多种显著性模型性能。此外,利用增强特征进行显著性预测,在公开基准测试中表现更优。用户研究表明,生成预测与人类视觉注意模式高度一致。
原文摘要 · Abstract (English)
Saliency prediction models are constrained by the limited diversity and quantity of labeled data. Standard data augmentation techniques such as rotating and cropping alter scene composition, affecting saliency. We propose a novel data augmentation method for deep saliency prediction that edits natural images while preserving the complexity and variability of real-world scenes. Since saliency depends on high-level and low-level features, our approach involves learning both by incorporating photometric and semantic attributes such as color, contrast, brightness, and class. To that end, we introduce a saliency-guided cross-attention mechanism that enables targeted edits on the photometric properties, thereby enhancing saliency within specific image regions. Experimental results show that our data augmentation method consistently improves the performance of various saliency models. Moreover, leveraging the augmentation features for saliency prediction yields superior performance on publicly available saliency benchmarks. Our predictions align closely with human visual attention patterns in the edited images, as validated by a user study.
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