# DecAug: Augmenting HOI Detection via Decomposition

Source: [DecAug: Augmenting HOI Detection via Decomposition](<https://www.sota2.com/research/paper/68fa686f1e209131cea1c2cd>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-01-04T03:21:12.267Z

Authors: Yichen Xie, Hao-Shu Fang, Dian Shao, Yong-Lu Li, Cewu Lu

Published: 2020-10-02T13:59:05.000Z

## Abstract

Human-object interaction (HOI) detection requires a large amount of annotated data. Current algorithms suffer from insufficient training samples and category imbalance within datasets. To increase data efficiency, in this paper, we propose an efficient and effective data augmentation method called DecAug for HOI detection. Based on our proposed object state similarity metric, object patterns across different HOIs are shared to augment local object appearance features without changing their state. Further, we shift spatial correlation between humans and objects to other feasible configurations with the aid of a pose-guided Gaussian Mixture Model while preserving their interactions. Experiments show that our method brings up to 3.3 mAP and 1.6 mAP improvements on V-COCO and HICODET dataset for two advanced models. Specifically, interactions with fewer samples enjoy more notable improvement. Our method can be easily integrated into various HOI detection models with negligible extra computational consumption. Our code will be made publicly available.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

- [Human-Object Interaction Detection on HICO-DET (test)](<https://www.sota2.com/research/sota/human-object-interaction-detection-on-hico-det-test.md>): Human-Object Interaction Detection; HICO-DET (test); mAP (full): 18.38.

- [Human-Object Interaction Detection on V-COCO (test)](<https://www.sota2.com/research/sota/human-object-interaction-detection-on-v-coco-test.md>): Human-Object Interaction Detection; V-COCO (test); AP (Role, Scenario 1): not recorded.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2010.01007>)

[PDF](<https://arxiv.org/pdf/2010.01007.pdf>)