PhD Candidate
University of California, Merced
Areas of Interest
- Artificial Intelligence
Poster
Joint-task Self-supervised Learning for Temporal Correspondence
Abstract
This paper proposes to learn reliable dense correspondence from videos in a self-supervised manner. Our learning process integrates two highly related tasks: tracking large image regions and establishing fine-grained pixel-level associations between consecutive video frames. We exploit the synergy between both tasks through a shared inter-frame affinity matrix, which simultaneously models transitions between video frames at both the region- and pixel-levels. While region-level localization helps reduce ambiguities in fine-grained matching by narrowing down search regions; fine-grained matching provides bottom-up features to facilitate region-level localization. Our method outperforms the state-of-the-art self-supervised methods on a variety of visual correspondence tasks, including video-object and part-segmentation propagation, keypoint tracking, and object tracking. Our self-supervised method even surpasses the fully-supervised affinity feature representation obtained from a ResNet-18 pre-trained on the ImageNet.
Bio
I am currently a fourth-year PhD student in the Vision and Learning Lab at University of California, Merced supervised by Ming-Hsuan Yang. Before coming UC Merced, I received my M.S. degree and B.S. degree from Tsinghua University (THU) and Beijing University of Posts and Telecommunications (BUPT) on 2016 and 2013 respectively. I am mainly interested in self-supervised learning and 3D computer vision problems.
