Supervised object detection and semantic segmentation require object or even pixel level annotations. When there exist image level labels only, it is challenging for weakly supervised algorithms to achieve accurate predictions. The accuracy achieved by top weakly supervised algorithms is still significantly lower than their fully supervised counterparts. In this paper, we propose a novel weakly supervised curriculum learning pipeline for multi-label object recognition, detection and semantic segmentation. In this pipeline, we first obtain intermediate object localization and pixel labeling results for the training images, and then use such results to train task-specific deep networks in a fully supervised manner. The entire process consists of four stages, including object localization in the training images, filtering and fusing object instances, pixel labeling for the training images, and task-specific network training. To obtain clean object instances in the training images, we propose a novel algorithm for filtering, fusing and classifying object instances collected from multiple solution mechanisms. In this algorithm, we incorporate both metric learning and density-based clustering to filter detected object instances. Experiments show that our weakly supervised pipeline achieves state-of-the-art results in multi-label image classification as well as weakly supervised object detection and very competitive results in weakly supervised semantic segmentation on MS-COCO, PASCAL VOC 2007 and PASCAL VOC 2012.

该论文提出了一种弱监督课程学习流程，用于多标签对象识别、检测和语义分割的任务，其中包括四个阶段，包括训练图像的对象定位、筛选和融合对象实例、像素标注以及基于任务的网络训练，通过这种流程，实现了在MS-COCO、PASCAL VOC 2007和PASCAL VOC 2012数据集上进行多标签图像分类以及弱监督对象检测和语义分割的最新成果。

基于弱监督学习的多证据过滤与融合方法用于多标签分类、目标检测和语义分割