arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2308.03594cs.CV

FeatEnHancer:增强低光照视觉下目标检测及其他任务的分层特征

FeatEnHancer: Enhancing Hierarchical Features for Object Detection and Beyond Under Low-Light Vision

DFKI - German Research Center for Artificial Intelligence(德国人工智能研究中心);RPTU Kaiserslautern(凯泽斯劳滕工业大学)

Khurram Azeem Hashmi, Goutham Kallempudi, Didier Stricker, Muhammamd Zeshan Afzal

AI总结:

本文提出即插即用的 FeatEnHancer 模块,通过任务相关损失引导的多头注意力分层融合多尺度特征,在暗光目标检测、人脸检测、夜间语义分割和视频目标检测等多个低光照视觉任务中取得显著一致的性能提升。

摘要:

在低光照视觉条件下,为下游任务提取有用的视觉线索尤其具有挑战性。以往的工作通过将视觉质量与机器感知相关联,或设计需要在合成数据集上预训练的光照退化变换方法来创建增强表示。我们认为,针对下游任务损失优化增强图像表示可以产生更具表达力的表示。因此,在本工作中,我们提出了一种新颖的模块 FeatEnHancer,该模块在任务相关损失函数的引导下,利用多头注意力分层组合多尺度特征,以创建合适的表示。此外,我们的尺度内增强提高了在每个尺度或层级上提取的特征质量,并以反映其对当前任务相对重要性的方式组合来自不同尺度的特征。FeatEnHancer 是一个通用的即插即用模块,可以集成到任何低光照视觉流程中。我们通过大量实验表明,使用 FeatEnHancer 生成的增强表示在多个低光照视觉任务中显著且一致地改善了结果,包括暗光目标检测(在 ExDark 上提升 5.7 mAP)、人脸检测(在 DARK FACE 上提升 1.5 mAP)、夜间语义分割(在 ACDC 上提升 5.1 mIoU)和视频目标检测(在 DarkVision 上提升 1.8 mAP),突显了在低光照视觉下增强分层特征的有效性。

英文摘要:

Extracting useful visual cues for the downstream tasks is especially challenging under low-light vision. Prior works create enhanced representations by either correlating visual quality with machine perception or designing illumination-degrading transformation methods that require pre-training on synthetic datasets. We argue that optimizing enhanced image representation pertaining to the loss of the downstream task can result in more expressive representations. Therefore, in this work, we propose a novel module, FeatEnHancer, that hierarchically combines multiscale features using multiheaded attention guided by task-related loss function to create suitable representations. Furthermore, our intra-scale enhancement improves the quality of features extracted at each scale or level, as well as combines features from different scales in a way that reflects their relative importance for the task at hand. FeatEnHancer is a general-purpose plug-and-play module and can be incorporated into any low-light vision pipeline. We show with extensive experimentation that the enhanced representation produced with FeatEnHancer significantly and consistently improves results in several low-light vision tasks, including dark object detection (+5.7 mAP on ExDark), face detection (+1.5 mAPon DARK FACE), nighttime semantic segmentation (+5.1 mIoU on ACDC ), and video object detection (+1.8 mAP on DarkVision), highlighting the effectiveness of enhancing hierarchical features under low-light vision.

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。

↑