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The wavefront measurement of a light beam is a complex task, which often requires a series of spatially resolved intensity measurements. For instance, a detector array may be used to measure the local phase gradient in the transverse plane…

Filtering multi-dimensional images such as color images, color videos, multispectral images and magnetic resonance images is challenging in terms of both effectiveness and efficiency. Leveraging the nonlocal self-similarity (NLSS)…

Image and Video Processing · Electrical Eng. & Systems 2020-11-09 Zhaoming Kong , Xiaowei Yang , Lifang He

Existing datasets for RGB-DVS tracking are collected with DVS346 camera and their resolution ($346 \times 260$) is low for practical applications. Actually, only visible cameras are deployed in many practical systems, and the newly designed…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Yabin Zhu , Xiao Wang , Chenglong Li , Bo Jiang , Lin Zhu , Zhixiang Huang , Yonghong Tian , Jin Tang

Event-based cameras are new type vision sensors whose pixels work independently and respond asynchronously to brightness change with microsecond resolution, instead of providing standard intensity frames. Compared with traditional cameras,…

Robotics · Computer Science 2023-07-26 Kunfeng Wang , Kaichun Zhao , Zheng You

The Dynamic-Mode Decomposition (DMD) is a well established data-driven method of finding temporally evolving linear-mode decompositions of nonlinear time series. Traditionally, this method presumes that all relevant dimensions are sampled…

Dynamical Systems · Mathematics 2021-01-13 Christopher W. Curtis , Daniel Jay Alford-Lago

This paper presents a robust, occlusion-aware driver monitoring system (DMS) utilizing the Driver Monitoring Dataset (DMD). The system performs driver identification, gaze estimation by regions, and face occlusion detection under varying…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Paola Natalia Cañas , Alexander Diez , David Galvañ , Marcos Nieto , Igor Rodríguez

Dynamic visual sensors (DVS) are characterized by a large amount of background activity (BA) noise, which it is mixed with the original (cleaned) sensor signal. The dynamic nature of the signal and the absence in practical application of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Evgeny V. Votyakov , Alessandro Artusi

This paper introduces a novel Hybrid Visual Servoing (HVS) approach for controlling tendon-driven continuum robots (TDCRs). The HVS system combines Image-Based Visual Servoing (IBVS) with Deep Learning-Based Visual Servoing (DLBVS) to…

Robotics · Computer Science 2025-02-21 Rana Danesh , Farrokh Janabi-Sharifi , Farhad Aghili

Rapid and low power computation of optical flow (OF) is potentially useful in robotics. The dynamic vision sensor (DVS) event camera produces quick and sparse output, and has high dynamic range, but conventional OF algorithms are…

Computer Vision and Pattern Recognition · Computer Science 2017-06-20 Min Liu , Tobi Delbruck

This paper introduces an innovative keypoint detection technique based on Convolutional Neural Networks (CNNs) to enhance the performance of existing Deep Visual Servoing (DVS) models. To validate the convergence of the Image-Based Visual…

Robotics · Computer Science 2024-09-23 Niloufar Amiri , Guanghui Wang , Farrokh Janabi-Sharifi

We propose DistSurf-OF, a novel optical flow method for neuromorphic cameras. Neuromorphic cameras (or event detection cameras) are an emerging sensor modality that makes use of dynamic vision sensors (DVS) to report asynchronously the…

Image and Video Processing · Electrical Eng. & Systems 2020-03-31 Mohammed Almatrafi , Raymond Baldwin , Kiyoharu Aizawa , Keigo Hirakawa

Cerebral small vessel disease (CSVD) is a major vascular contributor to cognitive impairment in ageing, including dementias. Imaging remains the most promising method for in vivo studies of CSVD. To replace the subjective and laborious…

Image and Video Processing · Electrical Eng. & Systems 2022-04-05 Jiyang Jiang , Dadong Wang , Yang Song , Perminder S. Sachdev , Wei Wen

Accurate localization in autonomous driving is critical for successful missions including environmental mapping and survivor searches. In visually challenging environments, including low-light conditions, overexposure, illumination changes,…

Neuromorphic hardware equipped with learning capabilities can adapt to new, real-time data. While models of Spiking Neural Networks (SNNs) can now be trained using gradient descent to reach an accuracy comparable to equivalent conventional…

Neural and Evolutionary Computing · Computer Science 2022-03-09 Kenneth Stewart , Andreea Danielescu , Timothy Shea , Emre Neftci

We present a fully event-driven vision and processing system for selective attention and tracking, realized on a neuromorphic processor Loihi interfaced to an event-based Dynamic Vision Sensor DAVIS. The attention mechanism is realized as a…

Neural and Evolutionary Computing · Computer Science 2019-07-10 Alpha Renner , Matthew Evanusa , Yulia Sandamirskaya

Key properties of brain-inspired hyperdimensional (HD) computing make it a prime candidate for energy-efficient and fast learning in biosignal processing. The main challenge is however to formulate embedding methods that map biosignal…

Signal Processing · Electrical Eng. & Systems 2019-01-01 Michael Hersche , José del R. Millán , Luca Benini , Abbas Rahimi

As an important perceptual characteristic of the Human Visual System (HVS), the Just Noticeable Difference (JND) has been studied for decades with image and video processing (e.g., perceptual visual signal compression). However, there is…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Jian Jin , Xingxing Zhang , Xin Fu , Huan Zhang , Weisi Lin , Jian Lou , Yao Zhao

In recent years, drone detection has quickly become a subject of extreme interest: the potential for fast-moving objects of contained dimensions to be used for malicious intents or even terrorist attacks has posed attention to the necessity…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Gabriele Magrini , Federico Becattini , Pietro Pala , Alberto Del Bimbo , Antonio Porta

Conventional frame-based camera is not able to meet the demand of rapid reaction for real-time applications, while the emerging dynamic vision sensor (DVS) can realize high speed capturing for moving objects. However, to achieve visual…

Image and Video Processing · Electrical Eng. & Systems 2019-07-23 Lin Zhu , Siwei Dong , Tiejun Huang , Yonghong Tian

Video restoration (VR) aims to recover high-quality videos from degraded ones. Although recent zero-shot VR methods using pre-trained diffusion models (DMs) show good promise, they suffer from approximation errors during reverse diffusion…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Hengkang Wang , Yang Liu , Huidong Liu , Chien-Chih Wang , Yanhui Guo , Hongdong Li , Bryan Wang , Ju Sun
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