arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2303.11298cs.CV
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语义分割的可靠性:我们走在正确的轨道上吗?

Reliability in Semantic Segmentation: Are We on the Right Track?

University of Oxford(牛津大学);NAVER LABS Europe(NAVER欧洲实验室)

Pau de Jorge, Riccardo Volpi, Philip Torr, Gregory Rogez

摘要:

受Transformers在计算机视觉中日益普及的推动,近来出现了新颖架构的快速发展。虽然域内性能遵循恒定的上升趋势,但鲁棒性或不确定性估计等属性较少探索-对模型可靠性的进步产生怀疑。沿着这些轴的研究是存在的,但它们主要限于分类模型。相比之下,我们进行了研究语义分割,一个相关的任务,许多现实世界的应用程序中,模型的可靠性是至关重要的。我们分析了各种各样的模型,从旧的基于ResNet的架构到新型Transformers,并根据四个指标评估其可靠性:鲁棒性,校准,错误分类检测和分布外(OOD)检测。我们发现,虽然最近的模型显着更强大,他们不是整体更可靠的不确定性估计。我们进一步探索可以拯救的方法,并表明改进校准也可以帮助其他不确定性指标,如错误分类或OOD检测。这是第一次研究现代分割模型集中在鲁棒性和不确定性估计,我们希望它将有助于从业者和研究人员感兴趣的这一基本的视觉任务。代码可在https://github.com/naver/relis获得。

英文摘要:

Motivated by the increasing popularity of transformers in computer vision, in recent times there has been a rapid development of novel architectures. While in-domain performance follows a constant, upward trend, properties like robustness or uncertainty estimation are less explored -leaving doubts about advances in model reliability. Studies along these axes exist, but they are mainly limited to classification models. In contrast, we carry out a study on semantic segmentation, a relevant task for many real-world applications where model reliability is paramount. We analyze a broad variety of models, spanning from older ResNet-based architectures to novel transformers and assess their reliability based on four metrics: robustness, calibration, misclassification detection and out-of-distribution (OOD) detection. We find that while recent models are significantly more robust, they are not overall more reliable in terms of uncertainty estimation. We further explore methods that can come to the rescue and show that improving calibration can also help with other uncertainty metrics such as misclassification or OOD detection. This is the first study on modern segmentation models focused on both robustness and uncertainty estimation and we hope it will help practitioners and researchers interested in this fundamental vision task. Code available at https://github.com/naver/relis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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