Semi-Supervised Human Detection via Region Proposal Networks Aided by Verification.

08:00 EDT 3rd October 2019 | BioPortfolio

Summary of "Semi-Supervised Human Detection via Region Proposal Networks Aided by Verification."

In this paper, we explore how to leverage readily available unlabeled data to improve semi-supervised human detection performance. For this purpose, we specifically modify the region proposal network (RPN) for learning on a partially labeled dataset. Based on commonly observed false positive types, a verification module is developed to assess foreground human objects in the candidate regions to provide an important cue for filtering the RPN's proposals. The remaining proposals with high confidence scores are then used as pseudo annotations for re-training our detection model. To reduce the risk of error propagation in the training process, we adopt a self-paced training strategy to progressively include more pseudo annotations generated by the previous model over multiple training rounds. The resulting detector re-trained on the augmented data can be expected to have better detection performance. The effectiveness of the main components of this framework is verified through extensive experiments, and the proposed approach achieves state-of-the-art detection results on multiple scene-specific human detection benchmarks in the semi-supervised setting.


Journal Details

This article was published in the following journal.

Name: IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
ISSN: 1941-0042


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