We present a new, simple yet effective approach to uplift video object detection. We observe that prior works operate on instance-level feature aggregation that imminently neglects the refined pixel-level representation, resulting in confusion among objects sharing similar appearance or motion characteristics. To address this limitation, we propose BoxMask, which effectively learns discriminative representations by incorporating class-aware pixel-level information. We simply consider bounding box-level annotations as a coarse mask for each object to supervise our method. The proposed module can be effortlessly integrated into any region-based detector to boost detection. Extensive experiments on ImageNet VID and EPIC KITCHENS datasets demonstrate consistent and significant improvement when we plug our BoxMask module into numerous recent state-of-the-art methods.
@article{arxiv.2210.06008,
title = {BoxMask: Revisiting Bounding Box Supervision for Video Object Detection},
author = {Khurram Azeem Hashmi and Alain Pagani and Didier Stricker and Muhammamd Zeshan Afzal},
journal= {arXiv preprint arXiv:2210.06008},
year = {2022}
}