English
Related papers

Related papers: The passive operating mode of the linear optical g…

200 papers

Action monitoring in a home environment provides important information for health monitoring and may serve as input into a smart home environment. Visual analysis using cameras can recognise actions in a complex scene, such as someones…

Computer Vision and Pattern Recognition · Computer Science 2018-11-14 Lili Tao , Timothy Volonakis , Bo Tan , Yanguo Jing , Kevin Chetty , Melvyn Smith

We present methods for efficient characterization of an optical coherent state $|\alpha\rangle$. We choose measurement settings adaptively and stochastically, based on data while it is collected. Our algorithm divides the estimation into…

Quantum Physics · Physics 2016-01-08 Markku P. V. Stenberg , Kevin Pack , Frank K. Wilhelm

Visual Odometry (VO) and Visual SLAM (V-SLAM) systems often struggle in low-light and dark environments due to the lack of robust visual features. In this paper, we propose a novel active illumination framework to enhance the performance of…

Robotics · Computer Science 2025-09-09 Francesco Crocetti , Alberto Dionigi , Raffaele Brilli , Gabriele Costante , Paolo Valigi

The indoor radio propagation channel is typically modeled as a two-state time-variant process where one of the states represents the channel when the environment is static, whereas the other state characterizes the medium when it is altered…

Other Computer Science · Computer Science 2014-02-28 Ossi Kaltiokallio , Hüseyin Yiğitler , Riku Jäntti

Contactless hand pose estimation requires sensors that provide precise spatial information and low computational complexity for real-time processing. Unlike vision-based systems, radar offers lighting independence and direct motion…

Signal Processing · Electrical Eng. & Systems 2024-06-21 Johanna Bräunig , Vanessa Wirth , Marc Stamminger , Ingrid Ullmann , Martin Vossiek

Wireless sensor nodes spend most of their time in standby mode and wake up periodically to send the measurement data. Conventionally, the wake-up function is realized using a radio-frequency oscillator with an amplifier to recognize an…

Signal Processing · Electrical Eng. & Systems 2020-05-21 Uliana Dudko , Ludger Overmeyer

Two core competencies of a mobile robot are to build a map of the environment and to estimate its own pose on the basis of this map and incoming sensor readings. To account for the uncertainties in this process, one typically employs…

Robotics · Computer Science 2019-10-24 Alexander Schaefer , Lukas Luft , Wolfram Burgard

Human motion detection is getting considerable attention in the field of Artificial Intelligence (AI) driven healthcare systems. Human motion can be used to provide remote healthcare solutions for vulnerable people by identifying particular…

Signal Processing · Electrical Eng. & Systems 2020-08-07 William Taylor , Syed Aziz Shah , Kia Dashtipour , Adnan Zahid , Qammer H. Abbasi , Muhammad Ali Imran

We demonstrate how noise can be turned into an advantage for optical sensing using a nonlinear cavity. The cavity is driven by a continuous wave laser into the regime of optical bistability. Due to the influence of fluctuations, the cavity…

Optics · Physics 2020-02-19 Said R. K. Rodriguez

We report the first experimental demonstration that two light pulses were made motionless and interacted with each other via a medium. The interaction time is, in principle, as long as possible and a considerable efficiency can be achieved…

Unlike traditional cameras, event cameras measure changes in light intensity and report differences. This paper examines the conditions necessary for other traditional sensors to admit eventified versions that provide adequate information…

Robotics · Computer Science 2024-07-02 Yulin Zhang , Dylan A. Shell

Authentication schemes using tokens or biometric modalities have been proposed to ameliorate the security strength on mobile devices. However, the existing approaches are obtrusive since the user is required to perform explicit gestures in…

Cryptography and Security · Computer Science 2016-02-11 Thang Hoang , Deokjai Choi , Thuc Nguyen

Vision-based tactile sensors use structured light to measure deformation in their elastomeric interface. Until now, vision-based tactile sensors such as DIGIT and GelSight have been using a single, static pattern of structured light tuned…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Artemii Redkin , Zdravko Dugonjic , Mike Lambeta , Roberto Calandra

Nonlinearity in many systems is heavily dependent on component variation and environmental factors such as temperature. This is often overcome by keeping signals close enough to the device's operating point that it appears approximately…

Signal Processing · Electrical Eng. & Systems 2022-05-18 Lachlan J. Gunn , Andrew Allison , Derek Abbott

Event-based vision sensors mimic the operation of biological retina and they represent a major paradigm shift from traditional cameras. Instead of providing frames of intensity measurements synchronously, at artificially chosen rates,…

Computer Vision and Pattern Recognition · Computer Science 2015-10-08 Guillermo Gallego , Christian Forster , Elias Mueggler , Davide Scaramuzza

Internet of Things (IoT) employs a large number of spatially distributed wireless sen-sors to monitor physical environments, e.g., temperature, humidity, and air pressure, have found wide applications including environmental monitoring,…

Applied Physics · Physics 2018-05-16 Xiangyi Xu , Weijian Chen , Guangming Zhao , Yihang Li , Chenyang Lu , Lan Yang

Active non-line-of-sight imaging systems are of growing interest for diverse applications. The most commonly proposed approaches to date rely on exploiting time-resolved measurements, i.e., measuring the time it takes for short light pulses…

Image and Video Processing · Electrical Eng. & Systems 2017-11-20 Christos Thrampoulidis , Gal Shulkind , Feihu Xu , William T. Freeman , Jeffrey H. Shapiro , Antonio Torralba , Franco N. C. Wong , Gregory W. Wornell

Computer mice have their displacement sensors in various locations (center, front, and rear). However, there has been little research into the effects of sensor position or on engineering approaches to exploit it. This paper first discusses…

Human-Computer Interaction · Computer Science 2020-01-13 Sunjun Kim , Byungjoo Lee , Thomas van Gemert , Antti Oulasvirta

This paper presents a novel approach to assessing human lighting adjustment behavior and preference in diverse lighting conditions through the evaluation of emotional feedback and behavioral data using VR. Participants (n= 27) were exposed…

Human-Computer Interaction · Computer Science 2023-07-21 Armin Mostafavi , Tong Bill Xu , Saleh Kalantari

Tactile gesture recognition systems play a crucial role in Human-Robot Interaction (HRI) by enabling intuitive communication between humans and robots. The literature mainly addresses this problem by applying machine learning techniques to…

Robotics · Computer Science 2025-08-07 Shaohong Zhong , Alessandro Albini , Giammarco Caroleo , Giorgio Cannata , Perla Maiolino