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arXiv 1809.09299cs.CV
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用于联合检测和分割的三重监督解码器网络

Triply Supervised Decoder Networks for Joint Detection and Segmentation

Tianjin University(天津大学);Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences(中国科学院西安光学精密机械研究所)

Jiale Cao, Yanwei Pang, Xuelong Li

摘要:

联合目标检测和语义分割可以应用于许多领域,例如自动驾驶汽车和无人水面船只。通过简单地共享两个任务的深度卷积特征,实现了这一目标的初步和重要进展。然而,这种简单的方案无法充分利用检测和分割是互利的这一事实。为了克服这个缺点,我们提出了一个框架,称为TripleNet的三重监督,包括面向检测的监督,类感知的分割监督,和类不可知的分割监督施加在解码器网络的每一层。类无关的分割监督为语义分割和目标检测提供对象性先验知识。除了三种类型的监督,两个轻量级模块(即,内连接模块和注意力跳过层融合)也被结合到解码器的每一层中。在所提出的框架中,检测和分割可以充分地相互促进。此外,在测试阶段不执行每个解码器层上的类不可知和类感知分段。因此,在测试阶段不会引入额外的计算成本。在VOC2007和VOC2012数据集上的实验结果表明,所提出的TripleNet能够在不增加额外计算成本的情况下提高检测和分割精度。

英文摘要:

Joint object detection and semantic segmentation can be applied to many fields, such as self-driving cars and unmanned surface vessels. An initial and important progress towards this goal has been achieved by simply sharing the deep convolutional features for the two tasks. However, this simple scheme is unable to make full use of the fact that detection and segmentation are mutually beneficial. To overcome this drawback, we propose a framework called TripleNet where triple supervisions including detection-oriented supervision, class-aware segmentation supervision, and class-agnostic segmentation supervision are imposed on each layer of the decoder network. Class-agnostic segmentation supervision provides an objectness prior knowledge for both semantic segmentation and object detection. Besides the three types of supervisions, two light-weight modules (i.e., inner-connected module and attention skip-layer fusion) are also incorporated into each layer of the decoder. In the proposed framework, detection and segmentation can sufficiently boost each other. Moreover, class-agnostic and class-aware segmentation on each decoder layer are not performed at the test stage. Therefore, no extra computational costs are introduced at the test stage. Experimental results on the VOC2007 and VOC2012 datasets demonstrate that the proposed TripleNet is able to improve both the detection and segmentation accuracies without adding extra computational costs.

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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