milliFlow: Scene Flow Estimation on mmWave Radar Point Cloud for Human Motion Sensing

Fuente: arXiv
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Main Authors: Ding, Fangqiang, Luo, Zhen, Zhao, Peijun, Lu, Chris Xiaoxuan
Format: Preprint
Published: 2023
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author Ding, Fangqiang
Luo, Zhen
Zhao, Peijun
Lu, Chris Xiaoxuan
author_facet Ding, Fangqiang
Luo, Zhen
Zhao, Peijun
Lu, Chris Xiaoxuan
contents Human motion sensing plays a crucial role in smart systems for decision-making, user interaction, and personalized services. Extensive research that has been conducted is predominantly based on cameras, whose intrusive nature limits their use in smart home applications. To address this, mmWave radars have gained popularity due to their privacy-friendly features. In this work, we propose milliFlow, a novel deep learning approach to estimate scene flow as complementary motion information for mmWave point cloud, serving as an intermediate level of features and directly benefiting downstream human motion sensing tasks. Experimental results demonstrate the superior performance of our method when compared with the competing approaches. Furthermore, by incorporating scene flow information, we achieve remarkable improvements in human activity recognition and human parsing and support human body part tracking. Code and dataset are available at https://github.com/Toytiny/milliFlow.
format Preprint
id arxiv_https___arxiv_org_abs_2306_17010
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle milliFlow: Scene Flow Estimation on mmWave Radar Point Cloud for Human Motion Sensing
Ding, Fangqiang
Luo, Zhen
Zhao, Peijun
Lu, Chris Xiaoxuan
Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
Human motion sensing plays a crucial role in smart systems for decision-making, user interaction, and personalized services. Extensive research that has been conducted is predominantly based on cameras, whose intrusive nature limits their use in smart home applications. To address this, mmWave radars have gained popularity due to their privacy-friendly features. In this work, we propose milliFlow, a novel deep learning approach to estimate scene flow as complementary motion information for mmWave point cloud, serving as an intermediate level of features and directly benefiting downstream human motion sensing tasks. Experimental results demonstrate the superior performance of our method when compared with the competing approaches. Furthermore, by incorporating scene flow information, we achieve remarkable improvements in human activity recognition and human parsing and support human body part tracking. Code and dataset are available at https://github.com/Toytiny/milliFlow.
title milliFlow: Scene Flow Estimation on mmWave Radar Point Cloud for Human Motion Sensing
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2306.17010