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arXiv 2308.00538cs.CVcs.AIcs.GReess.IV
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PressureTransferNet:基于人体属性引导的使用3D模拟压力图的动态地面压力分布迁移

PressureTransferNet: Human Attribute Guided Dynamic Ground Pressure Profile Transfer using 3D simulated Pressure Maps

DFKI(德国人工智能研究中心);RPTU Kaiserslautern(凯泽斯劳滕莱茵兰-普法尔茨工业大学)

Lala Shakti Swarup Ray, Vitor Fortes Rey, Bo Zhou, Sungho Suh, Paul Lukowicz

AI总结:

提出PressureTransferNet,一种编码器-解码器模型,通过输入源压力图和目标人体属性向量生成特定于身体的动态地面压力分布,在真实数据集上验证了其在数据增强和异常检测等HAR应用中的有效性。

摘要:

我们提出了PressureTransferNet,一种使用地面压力信息进行人体活动识别(HAR)的新方法。我们的方法通过利用来自不同个体的现有压力数据,为特定活动生成特定于身体的动态地面压力分布。PressureTransferNet是一个编码器-解码器模型,接收源压力图和目标人体属性向量作为输入,生成反映目标属性的新压力图。为了训练模型,我们使用传感器模拟创建了一个包含各种人体属性和压力分布的多样化数据集。在真实世界数据集上的评估表明了其在不同场景下准确将人体属性迁移到地面压力分布的有效性。我们使用基于物理的深度学习模型在视觉上确认了合成压力形状的保真度,并在地面接触区域实现了0.79的二元R平方值。通过在物理压力垫数据上进行分类的F1分数(0.911±0.015)验证,证明了合成压力图的正确性,使我们的方法在数据增强、去噪、传感器模拟和异常检测方面具有价值。应用涵盖运动科学、康复和生物力学,有助于HAR系统的发展。

英文摘要:

We propose PressureTransferNet, a novel method for Human Activity Recognition (HAR) using ground pressure information. Our approach generates body-specific dynamic ground pressure profiles for specific activities by leveraging existing pressure data from different individuals. PressureTransferNet is an encoder-decoder model taking a source pressure map and a target human attribute vector as inputs, producing a new pressure map reflecting the target attribute. To train the model, we use a sensor simulation to create a diverse dataset with various human attributes and pressure profiles. Evaluation on a real-world dataset shows its effectiveness in accurately transferring human attributes to ground pressure profiles across different scenarios. We visually confirm the fidelity of the synthesized pressure shapes using a physics-based deep learning model and achieve a binary R-square value of 0.79 on areas with ground contact. Validation through classification with F1 score (0.911$\pm$0.015) on physical pressure mat data demonstrates the correctness of the synthesized pressure maps, making our method valuable for data augmentation, denoising, sensor simulation, and anomaly detection. Applications span sports science, rehabilitation, and bio-mechanics, contributing to the development of HAR systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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