Visual Comfort Classification for Stereoscopic Videos Based on Two-Stream Recurrent Neural Network with Multi-level Attention

Due to the differences in visual systems between children and adults, a professional stereoscopic 3D video may not be comfortable for children. In this paper, we aim to answer whether a stereoscopic video is comfortable for children to watch by solving the visual comfort classification for stereoscopic videos. In particular, we propose a two-stream recurrent neural network (RNN) with multi-level attention for the visual comfort classification for stereoscopic videos. Firstly, we propose a two-stream RNN to extract and fuse spatial and temporal features from video frames and disparity maps. Furthermore, we propose using multi-level attention to effectively enhance the features in frame level, shot level, and finally video level. In addition, to our best knowledge, we establish the first high-definition stereoscopic 3D video dataset for performance evaluation. Experimental results show that our proposed model can effectively classify professional stereoscopic videos into visually comfortable for children or adults only.