Unsupervised Video Domain Adaptation with Masked Pre-Training and Collaborative Self-Training

Autor:	Reddy, Arun, Paul, William, Rivera, Corban, Shah, Ketul, de Melo, Celso M., Chellappa, Rama
Rok vydání:	2023
Předmět:	Computer Science - Computer Vision and Pattern Recognition Computer Science - Machine Learning
Druh dokumentu:	Working Paper
Popis:	In this work, we tackle the problem of unsupervised domain adaptation (UDA) for video action recognition. Our approach, which we call UNITE, uses an image teacher model to adapt a video student model to the target domain. UNITE first employs self-supervised pre-training to promote discriminative feature learning on target domain videos using a teacher-guided masked distillation objective. We then perform self-training on masked target data, using the video student model and image teacher model together to generate improved pseudolabels for unlabeled target videos. Our self-training process successfully leverages the strengths of both models to achieve strong transfer performance across domains. We evaluate our approach on multiple video domain adaptation benchmarks and observe significant improvements upon previously reported results. Comment: Accepted at CVPR 2024. 13 pages, 4 figures. Approved for public release: distribution unlimited
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2312.02914 Zobrazit plný text záznamu View this record from Arxiv