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This paper proposes a novel method to refine the 6D pose estimation inferred by an instance-level deep neural network which processes a single RGB image and that has been trained on synthetic images only. The proposed optimization algorithm…

Robotics · Computer Science 2023-05-26 Marco Costanzo , Marco De Simone , Sara Federico , Ciro Natale , Salvatore Pirozzi

WiFi-based imaging enables pervasive sensing in a privacy-preserving and cost-effective way. However, most of existing methods either require specialized hardware modification or suffer from poor imaging performance due to the fundamental…

Signal Processing · Electrical Eng. & Systems 2021-12-02 Ying He , Dongheng Zhang , Yan Chen

WiFi-based human sensing has exhibited remarkable potential to analyze user behaviors in a non-intrusive and device-free manner, benefiting applications as diverse as smart homes and healthcare. However, most previous works focus on…

Signal Processing · Electrical Eng. & Systems 2024-03-13 Shuokang Huang , Kaihan Li , Di You , Yichong Chen , Arvin Lin , Siying Liu , Xiaohui Li , Julie A. McCann

One of the major challenges for the agricultural industry today is the uncertainty in manual labor availability and the associated cost. Automated flower and fruit density estimation, localization, and counting could help streamline…

Computer Vision and Pattern Recognition · Computer Science 2025-01-20 Uddhav Bhattarai , Santosh Bhusal , Qin Zhang , Manoj Karkee

Water is a necessary fluid to the human body and automatic checking of its quality and cleanness is an ongoing area of research. One such approach is to present the liquid to various types of signals and make the amount of signal…

The Received Signal Strength Indicator (RSSI) is ubiquitously available on commodity WiFi devices but is commonly regarded as too coarse for fine-grained sensing. This paper revisits its sensing potential and presents WiRSSI, a bistatic…

Signal Processing · Electrical Eng. & Systems 2026-02-25 Zhongqin Wang , J. Andrew Zhang , Kai Wu , Y. Jay Guo

In this paper, random forests are proposed for operating devices diagnostics in the presence of a variable number of features. In various contexts, like large or difficult-to-access monitored areas, wired sensor networks providing features…

Artificial Intelligence · Computer Science 2017-06-27 Wiem Elghazel , Kamal Medjaher , Nourredine Zerhouni , Jacques Bahi , Ahamd Farhat , Christophe Guyeux , Mourad Hakem

This research paper presents the development of a lightweight and efficient computer vision pipeline aimed at assisting farmers in detecting orange diseases using minimal resources. The proposed system integrates advanced object detection,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Harsh Joshi

The economic and production losses in agricultural industry worldwide are due to the presence of diseases in the several kinds of fruits. In this paper, a method for the classification of fruit diseases is proposed and experimentally…

Computer Vision and Pattern Recognition · Computer Science 2014-12-24 Shiv Ram Dubey , Anand Singh Jalal

The contact-free sensing nature of Wi-Fi has been leveraged to achieve privacy breaches, yet existing attacks relying on Wi-Fi CSI (channel state information) demand hacking Wi-Fi hardware to obtain desired CSIs. Since such hacking has…

Cryptography and Security · Computer Science 2023-09-08 Jingyang Hu , Hongbo Wang , Tianyue Zheng , Jingzhi Hu , Zhe Chen , Hongbo Jiang , Jun Luo

Fall is one of the major health threats and obstacles to independent living for elders, timely and reliable fall detection is crucial for mitigating the effects of falls. In this paper, leveraging the fine-grained Channel State Information…

Human-Computer Interaction · Computer Science 2015-07-07 Daqing Zhang , Hao Wang , Yasha Wang , Junyi Ma

Owing to the plentiful information released by the commodity devices, WiFi signals have been widely studied for various wireless sensing applications. In many works, both received signal strength indicator (RSSI) and the channel state…

Signal Processing · Electrical Eng. & Systems 2022-03-25 Bo Wei , Hang Song , Jiro Katto , Takamaro Kikkawa

While fulfilling communication tasks, wireless signals can also be used to sense the environment. Among various types of sensing media, WiFi signals offer advantages such as widespread availability, low hardware cost, and strong robustness…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Ruijing Liu , Cunhua Pan , Jiaming Zeng , Hong Ren , Kezhi Wang , Lei Kong , Jiangzhou Wang

The systems based on intelligent sensors are currently expanding, due to theirs functions and theirs performances of intelligence: transmitting and receiving data in real-time, computation and processing algorithms, metrology remote,…

Networking and Internet Architecture · Computer Science 2014-09-25 Saad Chakkor , El Ahmadi Cheikh , Mostafa Baghouri , Abderrahmane Hajraoui

WiFi-based human activity recognition (HAR) holds significant application potential across various fields. To handle dynamic environments where new activities are continuously introduced, WiFi-based HAR systems must adapt by learning new…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Rong Li , Tao Deng , Siwei Feng , Mingjie Sun , Juncheng Jia

Proximity detection in indoor environments based on WiFi signals has gained significant attention in recent years. Existing works rely on the dynamic signal reflections and their extracted features are dependent on motion strength. To…

Signal Processing · Electrical Eng. & Systems 2024-05-01 Yuqian Hu , Guozhen Zhu , Beibei Wang , K. J. Ray Liu

Wireless sensor networks (WSN) acts as the backbone of Internet of Things (IoT) technology. In WSN, field sensing and fusion are the most commonly seen problems, which involve collecting and processing of a huge volume of spatial samples in…

Signal Processing · Electrical Eng. & Systems 2019-06-19 Hui Wu , Zhaoyang Zhang , Chunxu Jiao , Chunguang Li , Tony Q. S. Quek

While commonly used for communication purposes, an increasing number of recent studies consider WiFi for sensing. In particular, wireless signals are altered (e.g., reflected and attenuated) by the human body and objects in the environment.…

Networking and Internet Architecture · Computer Science 2022-04-08 Philipp H. Kindt , Cristian Turetta , Florenc Demrozi , Alejandro Masrur , Graziano Pravadelli , Samarjit Chakraborty

Device-free Wi-Fi sensing has numerous benefits in practical settings, as it eliminates the requirement for dedicated sensing devices and can be accomplished using current low-cost Wi-Fi devices. With the development of Wi-Fi standards,…

Signal Processing · Electrical Eng. & Systems 2025-06-16 Wenbo Ding , Yang Li , Dongsheng Wang , Bin Zhao , Yunrong Zhu , Yibo Zhang , Yumeng Miao

Contact tracing is a well-established and effective approach for the containment of the spread of infectious diseases. While Bluetooth-based contact tracing method using phones has become popular recently, these approaches suffer from the…

Networking and Internet Architecture · Computer Science 2021-09-16 Amee Trivedi , Camellia Zakaria , Rajesh Balan , Prashant Shenoy