activity
20202026
most citedNTU VIRAL: A Visual-Inertial-Ranging-Lidar Dataset, From an Aerial Vehicle Viewpoint

188 citations · 620 across the 44 of their papers we have counts for

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23 papers · 1 filter

cs.CV2026

Parasitic Co-Denoising: Unlocking 3D Human Motion Generation in a Frozen Video Diffusion Model

Yunjiao Zhou, Junlang Qian, Lihua Xie +1

Despite never being supervised on explicit 3D motion, large-scale text-to-video diffusion models synthesize realistic human motion in their generated videos. We ask whether this im…

cs.CV2026

Rethinking Fixed Temporal Grids: Frequency-Disentangled Motion Generation

Yunjiao Zhou, Junlang Qian, Gen Li +3

Most human motion generation methods encode motion as tokens on a uniform temporal grid, where every token spans the same fixed time window. Human motion, however, is temporally he…

cs.CV2025

M4Human: A Large-Scale Multimodal mmWave Radar Benchmark for Human Mesh Reconstruction

Junqiao Fan, Yunjiao Zhou, Yizhuo Yang +6

Human mesh reconstruction (HMR) provides direct insights into body-environment interaction, which enables various immersive applications. While existing large-scale HMR datasets re…

cs.CV2025

mmPred: Radar-based Human Motion Prediction in the Dark

Junqiao Fan, Haocong Rao, Jiarui Zhang +2

Existing Human Motion Prediction (HMP) methods based on RGB-D cameras are sensitive to lighting conditions and raise privacy concerns, limiting their real-world applications such a…

cs.CV2025

Zero-Shot Open-Vocabulary Human Motion Grounding with Test-Time Training

Yunjiao Zhou, Xinyan Chen, Junlang Qian +2

Understanding complex human activities demands the ability to decompose motion into fine-grained, semantic-aligned sub-actions. This motion grounding process is crucial for behavio…

cs.CV2024

Diffusion Model is a Good Pose Estimator from 3D RF-Vision

Junqiao Fan, Jianfei Yang, Yuecong Xu +1

Human pose estimation (HPE) from Radio Frequency vision (RF-vision) performs human sensing using RF signals that penetrate obstacles without revealing privacy (e.g., facial informa…

cs.CV2024

Interactive Test-Time Adaptation with Reliable Spatial-Temporal Voxels for Multi-Modal Segmentation

Haozhi Cao, Yuecong Xu, Pengyu Yin +4

Multi-modal test-time adaptation (MM-TTA) adapts models to an unlabeled target domain by leveraging the complementary multi-modal inputs in an online manner. While previous MM-TTA…

cs.CV2024

PSS-BA: LiDAR Bundle Adjustment with Progressive Spatial Smoothing

Jianping Li, Thien-Minh Nguyen, Shenghai Yuan +1

Accurate and consistent construction of point clouds from LiDAR scanning data is fundamental for 3D modeling applications. Current solutions, such as multiview point cloud registra…

cs.CV2024

T3DNet: Compressing Point Cloud Models for Lightweight 3D Recognition

Zhiyuan Yang, Yunjiao Zhou, Lihua Xie +1

3D point cloud has been widely used in many mobile application scenarios, including autonomous driving and 3D sensing on mobile devices. However, existing 3D point cloud models ten…

cs.CV2024

MaskFi: Unsupervised Learning of WiFi and Vision Representations for Multimodal Human Activity Recognition

Jianfei Yang, Shijie Tang, Yuecong Xu +2

Human activity recognition (HAR) has been playing an increasingly important role in various domains such as healthcare, security monitoring, and metaverse gaming. Though numerous H…

cs.CV2023★ 6 cited

TENT: Connect Language Models with IoT Sensors for Zero-Shot Activity Recognition

Yunjiao Zhou, Jianfei Yang, Han Zou +1

Recent achievements in language models have showcased their extraordinary capabilities in bridging visual information with semantic language understanding. This leads us to a novel…

cs.CV2023

MoPA: Multi-Modal Prior Aided Domain Adaptation for 3D Semantic Segmentation

Haozhi Cao, Yuecong Xu, Jianfei Yang +3

Multi-modal unsupervised domain adaptation (MM-UDA) for 3D semantic segmentation is a practical solution to embed semantic understanding in autonomous systems without expensive poi…

cs.CV2023★ 1 cited

AdaPose: Towards Cross-Site Device-Free Human Pose Estimation with Commodity WiFi

Yunjiao Zhou, Jianfei Yang, He Huang +1

WiFi-based pose estimation is a technology with great potential for the development of smart homes and metaverse avatar generation. However, current WiFi-based pose estimation meth…

cs.CV2023★ 1 cited

Can We Evaluate Domain Adaptation Models Without Target-Domain Labels?

Jianfei Yang, Hanjie Qian, Yuecong Xu +2

Unsupervised domain adaptation (UDA) involves adapting a model trained on a label-rich source domain to an unlabeled target domain. However, in real-world scenarios, the absence of…

cs.CV2023

Multi-Modal Continual Test-Time Adaptation for 3D Semantic Segmentation

Haozhi Cao, Yuecong Xu, Jianfei Yang +3

Continual Test-Time Adaptation (CTTA) generalizes conventional Test-Time Adaptation (TTA) by assuming that the target domain is dynamic over time rather than stationary. In this pa…

cs.CV2022★ 16 cited

Video Unsupervised Domain Adaptation with Deep Learning: A Comprehensive Survey

Yuecong Xu, Haozhi Cao, Zhenghua Chen +3

Video analysis tasks such as action recognition have received increasing research interest with growing applications in fields such as smart healthcare, thanks to the introduction…

cs.CV2022★ 1 cited

AirFi: Empowering WiFi-based Passive Human Gesture Recognition to Unseen Environment via Domain Generalization

Dazhuo Wang, Jianfei Yang, Wei Cui +2

WiFi-based smart human sensing technology enabled by Channel State Information (CSI) has received great attention in recent years. However, CSI-based sensing systems suffer from pe…

cs.CV2022★ 2 cited

GaitFi: Robust Device-Free Human Identification via WiFi and Vision Multimodal Learning

Lang Deng, Jianfei Yang, Shenghai Yuan +3

As an important biomarker for human identification, human gait can be collected at a distance by passive sensors without subject cooperation, which plays an essential role in crime…

cs.CV2022★ 1 cited

MetaFi: Device-Free Pose Estimation via Commodity WiFi for Metaverse Avatar Simulation

Jianfei Yang, Yunjiao Zhou, He Huang +2

Avatar refers to a representative of a physical user in the virtual world that can engage in different activities and interact with other objects in metaverse. Simulating the avata…

cs.CV2022★ 6 cited

Leveraging Endo- and Exo-Temporal Regularization for Black-box Video Domain Adaptation

Yuecong Xu, Jianfei Yang, Haozhi Cao +4

To enable video models to be applied seamlessly across video tasks in different environments, various Video Unsupervised Domain Adaptation (VUDA) methods have been proposed to impr…

cs.CV2022★ 137 cited

Computer Vision for Road Imaging and Pothole Detection: A State-of-the-Art Review of Systems and Algorithms

Nachuan Ma, Jiahe Fan, Wenshuo Wang +4

Computer vision algorithms have been prevalently utilized for 3-D road imaging and pothole detection for over two decades. Nonetheless, there is a lack of systematic survey article…

cs.CV2021★ 1 cited

Self-Supervised Video Representation Learning by Video Incoherence Detection

Haozhi Cao, Yuecong Xu, Jianfei Yang +4

This paper introduces a novel self-supervised method that leverages incoherence detection for video representation learning. It roots from the observation that visual systems of hu…

cs.CV2021★ 40 cited

Aligning Correlation Information for Domain Adaptation in Action Recognition

Yuecong Xu, Jianfei Yang, Haozhi Cao +3

Domain adaptation (DA) approaches address domain shift and enable networks to be applied to different scenarios. Although various image DA approaches have been proposed in recent y…