arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.00471cs.CV
收藏

再谈开放世界目标检测

Revisiting Open World Object Detection

Beihang University(北京航空航天大学)

Xiaowei Zhao, Xianglong Liu, Yifan Shen, Yixuan Qiao, Yuqing Ma, Duorui Wang

摘要:

开放世界目标检测(OWOD)模拟知识不断增长的真实动态世界,试图检测已知和未知类,并逐步学习识别出的未知类。我们发现,虽然只有以前的OWOD工作建设性地提出了OWOD的定义,实验设置是不合理的,不合理的基准,混乱的度量计算,和不适当的方法。在本文中,我们重新思考OWOD的实验设置,并提出了五个基本的基准原则,以指导OWOD基准建设。此外,我们还针对OWOD问题设计了两个公平的评估协议,填补了从未知类的角度进行评估的空白。此外,我们引入了一个新的和有效的OWOD框架包含一个辅助建议ADvisor(PAD)和类特定的驱逐分类器(CEC)。非参数PAD可以帮助RPN在没有监督的情况下识别准确的未知建议,而CEC则可以校准过度自信的激活边界,并通过特定于类的驱逐函数过滤掉令人困惑的预测。在我们的公平基准上进行的综合实验表明,我们的方法在现有的和我们的新指标方面优于其他最先进的目标检测方法。我们的基准测试和代码可以在https://github.com/RE-OWOD/RE-OWOD上找到。

英文摘要:

Open World Object Detection (OWOD), simulating the real dynamic world where knowledge grows continuously, attempts to detect both known and unknown classes and incrementally learn the identified unknown ones. We find that although the only previous OWOD work constructively puts forward to the OWOD definition, the experimental settings are unreasonable with the illogical benchmark, confusing metric calculation, and inappropriate method. In this paper, we rethink the OWOD experimental setting and propose five fundamental benchmark principles to guide the OWOD benchmark construction. Moreover, we design two fair evaluation protocols specific to the OWOD problem, filling the void of evaluating from the perspective of unknown classes. Furthermore, we introduce a novel and effective OWOD framework containing an auxiliary Proposal ADvisor (PAD) and a Class-specific Expelling Classifier (CEC). The non-parametric PAD could assist the RPN in identifying accurate unknown proposals without supervision, while CEC calibrates the over-confident activation boundary and filters out confusing predictions through a class-specific expelling function. Comprehensive experiments conducted on our fair benchmark demonstrate that our method outperforms other state-of-the-art object detection approaches in terms of both existing and our new metrics. Our benchmark and code are available at https://github.com/RE-OWOD/RE-OWOD.

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。

↑