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Automated and accurate human activity recognition (HAR) using body-worn sensors enables practical and cost efficient remote monitoring of Activity of DailyLiving (ADL), which are shown to provide clinical insights across multiple…

信号处理 · 电气工程与系统科学 2023-05-01 Maximilien Burq , Niranjan Sridhar

Neural Radiances Fields (NeRF) and their extensions have shown great success in representing 3D scenes and synthesizing novel-view images. However, most NeRF methods take in low-dynamic-range (LDR) images, which may lose details, especially…

计算机视觉与模式识别 · 计算机科学 2024-01-12 Guanjun Wu , Taoran Yi , Jiemin Fang , Wenyu Liu , Xinggang Wang

Radar-based human activity recognition (HAR) still lacks a comprehensive simulation method. Existing software is developed based on models or motion-captured data, resulting in limited flexibility. To address this issue, a simulator that…

信号处理 · 电气工程与系统科学 2025-11-13 Weicheng Gao

Human Activity Recognition (HAR) plays a significant role in the everyday life of people because of its ability to learn extensive high-level information about human activity from wearable or stationary devices. A substantial amount of…

信号处理 · 电气工程与系统科学 2022-09-09 Md. Milon Islam , Sheikh Nooruddin , Fakhri Karray , Ghulam Muhammad

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…

信号处理 · 电气工程与系统科学 2026-02-25 Zhongqin Wang , J. Andrew Zhang , Kai Wu , Y. Jay Guo

Neural Radiance Fields (NeRF) has been wildly applied to various tasks for its high-quality representation of 3D scenes. It takes long per-scene training time and per-image testing time. In this paper, we present EfficientNeRF as an…

计算机视觉与模式识别 · 计算机科学 2022-06-03 Tao Hu , Shu Liu , Yilun Chen , Tiancheng Shen , Jiaya Jia

Neural Radiance Fields (NeRF) presented a novel way to represent scenes, allowing for high-quality 3D reconstruction from 2D images. Following its remarkable achievements, global localization within NeRF maps is an essential task for…

机器人学 · 计算机科学 2025-03-17 Mangyu Kong , Seongwon Lee , Jaewon Lee , Euntai Kim

We present a scene representation, which we call a tactile-augmented radiance field (TaRF), that brings vision and touch into a shared 3D space. This representation can be used to estimate the visual and tactile signals for a given 3D…

计算机视觉与模式识别 · 计算机科学 2024-05-08 Yiming Dou , Fengyu Yang , Yi Liu , Antonio Loquercio , Andrew Owens

Human Activity Recognition (HAR) systems aim to understand human behaviour and assign a label to each action, attracting significant attention in computer vision due to their wide range of applications. HAR can leverage various data…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Jungpil Shin , Najmul Hassan , Abu Saleh Musa Miah1 , Satoshi Nishimura

Sensor-based human activity recognition (HAR), i.e., the ability to discover human daily activity patterns from wearable or embedded sensors, is a key enabler for many real-world applications in smart homes, personal healthcare, and urban…

信号处理 · 电气工程与系统科学 2021-04-20 Saurav Jha , Martin Schiemer , Franco Zambonelli , Juan Ye

Efficient and accurate 3D reconstruction is essential for applications in cultural heritage. This study addresses the challenge of visualizing objects within large-scale scenes at a high level of detail (LOD) using Neural Radiance Fields…

计算机视觉与模式识别 · 计算机科学 2025-02-19 Quoc-Anh Bui , Gilles Rougeron , Géraldine Morin , Simone Gasparini

Neural Radiance Fields (NeRFs) are trained using a set of camera poses and associated images as input to estimate density and color values for each position. The position-dependent density learning is of particular interest for…

计算机视觉与模式识别 · 计算机科学 2023-04-24 Miriam Jäger , Patrick Hübner , Dennis Haitz , Boris Jutzi

Neural Radiance Fields (NeRFs) have proven to be powerful 3D representations, capable of high quality novel view synthesis of complex scenes. While NeRFs have been applied to graphics, vision, and robotics, problems with slow rendering…

Recent work on Neural Radiance Fields (NeRF) showed how neural networks can be used to encode complex 3D environments that can be rendered photorealistically from novel viewpoints. Rendering these images is very computationally demanding…

计算机视觉与模式识别 · 计算机科学 2021-04-16 Stephan J. Garbin , Marek Kowalski , Matthew Johnson , Jamie Shotton , Julien Valentin

As a promising fashion for visual localization, scene coordinate regression (SCR) has seen tremendous progress in the past decade. Most recent methods usually adopt neural networks to learn the mapping from image pixels to 3D scene…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Le Chen , Weirong Chen , Rui Wang , Marc Pollefeys

Neural Radiance Fields (NeRFs) have recently emerged as a popular option for photo-realistic object capture due to their ability to faithfully capture high-fidelity volumetric content even from handheld video input. Although much research…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Binglun Wang , Niladri Shekhar Dutt , Niloy J. Mitra

Wi-Fi devices, akin to passive radars, can discern human activities within indoor settings due to the human body's interaction with electromagnetic signals. Current Wi-Fi sensing applications predominantly employ data-driven learning…

Deep neural network is an effective choice to automatically recognize human actions utilizing data from various wearable sensors. These networks automate the process of feature extraction relying completely on data. However, various noises…

信号处理 · 电气工程与系统科学 2021-01-05 Tanvir Mahmud , A. Q. M. Sazzad Sayyed , Shaikh Anowarul Fattah , Sun-Yuan Kung

Mobile and wearable devices have enabled numerous applications, including activity tracking, wellness monitoring, and human--computer interaction, that measure and improve our daily lives. Many of these applications are made possible by…

人机交互 · 计算机科学 2022-03-04 Shibo Zhang , Yaxuan Li , Shen Zhang , Farzad Shahabi , Stephen Xia , Yu Deng , Nabil Alshurafa

Representing human performance at high-fidelity is an essential building block in diverse applications, such as film production, computer games or videoconferencing. To close the gap to production-level quality, we introduce HumanRF, a 4D…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Mustafa Işık , Martin Rünz , Markos Georgopoulos , Taras Khakhulin , Jonathan Starck , Lourdes Agapito , Matthias Nießner