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arXiv 2203.09338cs.CV
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单粗点监控下的目标定位

Object Localization under Single Coarse Point Supervision

University of Chinese Academy of Sciences(中国科学院大学);U of Oregon(俄勒冈大学);Shanghai Jiao Tong University(上海交通大学);Picsart AI Research (PAIR)(Picsart人工智能研究院(PAIR))

Xuehui Yu, Pengfei Chen, Di Wu, Najmul Hassan, Guorong Li, Junchi Yan, Humphrey Shi, Qixiang Ye, Zhenjun Han

摘要:

基于点的目标定位(POL),追求低成本的数据注释下的高性能的对象感测,引起了越来越多的关注。然而,点标注模式不可避免地会因标注点的不一致性而引入语义变异。现有的POL方法严重依赖于难以定义的精确关键点注释。在这项研究中,我们提出了一种POL方法,使用粗点注释,放松监督信号从准确的关键点自由斑点点。为此,我们提出了一个粗点细化(CPR)的方法,据我们所知,这是第一次尝试从算法的角度来减轻语义变化。CPR构建点包,选择语义相关点,并通过多实例学习(MIL)产生语义中心点。通过这种方式,CPR定义了一个弱监督的进化过程,确保在粗点监督下训练高性能的目标定位器。COCO,DOTA和我们提出的SeaPerson数据集上的实验结果验证了CPR方法的有效性。数据集和代码将在https://github.com/ucas-vg/PointTinyBenchmark/上提供。

英文摘要:

Point-based object localization (POL), which pursues high-performance object sensing under low-cost data annotation, has attracted increased attention. However, the point annotation mode inevitably introduces semantic variance for the inconsistency of annotated points. Existing POL methods heavily reply on accurate key-point annotations which are difficult to define. In this study, we propose a POL method using coarse point annotations, relaxing the supervision signals from accurate key points to freely spotted points. To this end, we propose a coarse point refinement (CPR) approach, which to our best knowledge is the first attempt to alleviate semantic variance from the perspective of algorithm. CPR constructs point bags, selects semantic-correlated points, and produces semantic center points through multiple instance learning (MIL). In this way, CPR defines a weakly supervised evolution procedure, which ensures training high-performance object localizer under coarse point supervision. Experimental results on COCO, DOTA and our proposed SeaPerson dataset validate the effectiveness of the CPR approach. The dataset and code will be available at https://github.com/ucas-vg/PointTinyBenchmark/.

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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