Pyramid Stereo Matching Network
- 2018-05-30 (Wed.), 14:00 PM
- 中研院-統計所 2F 交誼廳
- 茶 會:下午15:00統計所二樓交誼廳
- 張家仁先生 (國立交通大學資訊工程學系博士候選人)
- 國立交通大學資訊工程學系博士班
Abstract
Recent work has shown that depth estimation from a stereo pair of images can be formulated as a supervised learning task to be resolved with convolutional neural networks (CNNs). However, current architectures rely on patch-based Siamese networks, lacking the means to exploit context information for finding correspondence in ill-posed regions. To tackle this problem, we propose PSMNet, a pyramid stereo matching network consisting of two main modules: spatial pyramid pooling and 3D CNN. The spatial pyramid pooling module takes advantage of the capacity of global context information by aggregating context in different scales and locations to form a cost volume. The 3D CNN learns to regularize cost volume using stacked multiple hourglass networks in conjunction with intermediate supervision. The proposed approach was evaluated on several benchmark datasets. Our method ranked first in the KITTI 2012 and 2015 leaderboards before March 18, 2018.