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The increasing availability of wireless access points (APs) is leading towards human sensing applications based on Wi-Fi signals as support or alternative tools to the widespread visual sensors, where the signals enable to address…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Danilo Avola , Marco Cascio , Luigi Cinque , Alessio Fagioli , Gian Luca Foresti

Wireless Fidelity or Wi-Fi, has completely transfigured wireless networking by offering a smooth connection to the internet and networks, particularly when dealing with enclosed environments. As with the majority of wireless technology, it…

Emerging Technologies · Computer Science 2025-02-12 Aditya Mitra , Anisha Ghosh , Sibi Chakkaravarthy S , Devi Priya VS

A lensless camera is an imaging system that uses a mask in place of a lens, making it thinner, lighter, and less expensive than a lensed camera. However, additional complex computation and time are required for image reconstruction. This…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Yinger Zhang , Zhouyi Wu , Peiying Lin , Yang Pan , Yuting Wu , Liufang Zhang , Jiangtao Huangfu

Indoor imaging is a critical task for robotics and internet-ofthings. WiFi as an omnipresent signal is a promising candidate for carrying out passive imaging and synchronizing the up-to-date information to all connected devices. This is the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Jianyang Shi , Bowen Zhang , Amartansh Dubey , Ross Murch , Liwen Jing

We propose a novel learned deep prior of body motion for 3D hand shape synthesis and estimation in the domain of conversational gestures. Our model builds upon the insight that body motion and hand gestures are strongly correlated in…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Evonne Ng , Shiry Ginosar , Trevor Darrell , Hanbyul Joo

In natural images, the scales (thickness) of object skeletons may dramatically vary among objects and object parts, making object skeleton detection a challenging problem. We present a new convolutional neural network (CNN) architecture by…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Kai Zhao , Wei Shen , Shanghua Gao , Dandan Li , Ming-Ming Cheng

WiFi human sensing has achieved great progress in indoor localization, activity classification, etc. Retracing the development of these work, we have a natural question: can WiFi devices work like cameras for vision applications? In this…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Fei Wang , Stanislav Panev , Ziyi Dai , Jinsong Han , Dong Huang

We present a real-time on-device hand tracking pipeline that predicts hand skeleton from single RGB camera for AR/VR applications. The pipeline consists of two models: 1) a palm detector, 2) a hand landmark model. It's implemented via…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Fan Zhang , Valentin Bazarevsky , Andrey Vakunov , Andrei Tkachenka , George Sung , Chuo-Ling Chang , Matthias Grundmann

WiFi-based sensing for human activity recognition (HAR) has recently become a hot topic as it brings great benefits when compared with video-based HAR, such as eliminating the demands of line-of-sight (LOS) and preserving privacy. Making…

Signal Processing · Electrical Eng. & Systems 2022-06-22 Yanling Hao , Zhiyuan Shi , Yuanwei Liu

Reconstructing hand-held objects from a single RGB image is an important and challenging problem. Existing works utilizing Signed Distance Fields (SDF) reveal limitations in comprehensively capturing the complex hand-object interactions,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Chenyangguang Zhang , Yan Di , Ruida Zhang , Guangyao Zhai , Fabian Manhardt , Federico Tombari , Xiangyang Ji

3D hand pose is an underexplored modality for action recognition. Poses are compact yet informative and can greatly benefit applications with limited compute budgets. However, poses alone offer an incomplete understanding of actions, as…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Md Salman Shamil , Dibyadip Chatterjee , Fadime Sener , Shugao Ma , Angela Yao

We build CSI-Net, a unified Deep Neural Network~(DNN), to learn the representation of WiFi signals. Using CSI-Net, we jointly solved two body characterization problems: biometrics estimation (including body fat, muscle, water, and bone…

Machine Learning · Computer Science 2019-01-23 Fei Wang , Jinsong Han , Shiyuan Zhang , Xu He , Dong Huang

This paper presents a method to learn hand-object interaction prior for reconstructing a 3D hand-object scene from a single RGB image. The inference as well as training-data generation for 3D hand-object scene reconstruction is challenging…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Hongsuk Choi , Nikhil Chavan-Dafle , Jiacheng Yuan , Volkan Isler , Hyunsoo Park

4D human perception plays an essential role in a myriad of applications, such as home automation and metaverse avatar simulation. However, existing solutions which mainly rely on cameras and wearable devices are either privacy intrusive or…

Signal Processing · Electrical Eng. & Systems 2023-09-26 Jianfei Yang , He Huang , Yunjiao Zhou , Xinyan Chen , Yuecong Xu , Shenghai Yuan , Han Zou , Chris Xiaoxuan Lu , Lihua Xie

Robotic grasping of house-hold objects has made remarkable progress in recent years. Yet, human grasps are still difficult to synthesize realistically. There are several key reasons: (1) the human hand has many degrees of freedom (more than…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Korrawe Karunratanakul , Jinlong Yang , Yan Zhang , Michael Black , Krikamol Muandet , Siyu Tang

Recent research has shown that human motions and positions can be recognized through WiFi signals. The key intuition is that different motions and positions introduce different multi-path distortions in WiFi signals and generate different…

Signal Processing · Electrical Eng. & Systems 2018-10-30 Heju Li , Xukai Chen , Haohua Du , Xin He , Jianwei Qian , Peng-Jun Wan , Panlong Yang

Person re-identification (Re-ID) has become increasingly important as it supports a wide range of security applications. Traditional person Re-ID mainly relies on optical camera-based systems, which incur several limitations due to the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Yili Ren , Jie Yang

Scalable learning of dexterous manipulation remains bottlenecked by the difficulty of collecting natural, high-fidelity human demonstrations of multi-finger hands due to occlusion, complex hand kinematics, and contact-rich interactions. We…

Robot hands that imitate the shape of the human body have been actively studied, and various materials and mechanisms have been proposed to imitate the human body. Although the use of soft materials is advantageous in that it can imitate…

Robotics · Computer Science 2025-03-04 Kazuhiro Miyama , Kento Kawaharazuka , Kei Okada , Masayuki Inaba

In corporate and commercial environments, the deployment of a set of coordinated Wi-Fi APs is becoming a common solution to provide Internet coverage to moving users. In these scenarios, real-time services as online games can also be…

Networking and Internet Architecture · Computer Science 2020-08-03 Jose Saldana , Juan Luis de la Cruz , Luis Sequeira , Julian Fernandez-Navajas , Jose Ruiz-Mas