We propose a novel weakly-supervised semantic segmentation algorithm based on Deep Convolutional Neural Network (DCNN). Contrary to existing weakly-supervised approaches, our algorithm exploits auxiliary segmentation annotations available for different categories to guide segmentations on images with only image-level class labels. To make the segmentation knowledge transferrable across categories, we design a decoupled encoder-decoder architecture with attention model. In this architecture, the model generates spatial highlights of each category presented in an image using an attention model, and subsequently generates foreground segmentation for each highlighted region using decoder. Combining attention model, we show that the decoder trained with segmentation annotations in different categories can boost the performance of weakly-supervised semantic segmentation. The proposed algorithm demonstrates substantially improved performance compared to the state-of-the-art weakly-supervised techniques in challenging PASCAL VOC 2012 dataset when our model is trained with the annotations in 60 exclusive categories in Microsoft COCO dataset.

该论文介绍了一种新颖的弱监督语义分割算法，该算法利用基于深度卷积神经网络的辅助分割注释，通过设计解耦编码器 - 解码器体系结构来生成空间高光区域，并使用注意力模型和分割注解在不同类型中加速弱监督下的语义分割。 训练该模型可以在 Microsoft COCO 数据集中的 60 个独家类别的注释下，显着提高在具有挑战性的 PASCAL VOC 2012 数据集中的表现。

使用深度卷积神经网络学习语义分割的可转移知识