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The need to estimate a particular quantile of a distribution is an important problem which frequently arises in many computer vision and signal processing applications. For example, our work was motivated by the requirements of many…

Computer Vision and Pattern Recognition · Computer Science 2015-04-22 Ognjen Arandjelovic , Duc-Son Pham , Svetha Venkatesh

This paper studies optical flow estimation, a critical task in motion analysis with applications in autonomous navigation, action recognition, and film production. Traditional optical flow methods require consecutive frames, which are often…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Mo Zhou , Jianwei Wang , Xuanmeng Zhang , Dylan Campbell , Kai Wang , Long Yuan , Wenjie Zhang , Xuemin Lin

Real-time motion detection in non-stationary scenes is a difficult task due to dynamic background, changing foreground appearance and limited computational resource. These challenges degrade the performance of the existing methods in…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Junjie Huang , Wei Zou , Zheng Zhu , Jiagang Zhu

We present a novel adaptive multi-modal intensity-event algorithm to optimize an overall objective of object tracking under bit rate constraints for a host-chip architecture. The chip is a computationally resource constrained device…

Image and Video Processing · Electrical Eng. & Systems 2021-06-01 Srutarshi Banerjee , Henry H. Chopp , Jianping Zhang , Zihao W. Wang , Oliver Cossairt , Aggelos Katsaggelos

Event cameras have the potential to capture continuous motion information over time and space, making them well-suited for optical flow estimation. However, most existing learning-based methods for event-based optical flow adopt frame-based…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Zuntao Liu , Hao Zhuang , Junjie Jiang , Yuhang Song , Zheng Fang

Energy harvesting is an attractive way to power future IoT devices since it can eliminate the need for battery or power cables. However, harvested energy is intrinsically unstable. While FPGAs have been widely adopted in various embedded…

Hardware Architecture · Computer Science 2020-02-07 Xinyi Zhang , Clay Patterson , Yongpan Liu , Chengmo Yang , Chun Jason Xue , Jingtong Hu

Accelerating Human Action Recognition (HAR) efficiently for real-time surveillance and robotic systems on edge chips remains a challenging research field, given its high computational and memory requirements. This paper proposed an…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Azzam Alhussain , Mingjie Lin

Event cameras, by virtue of their working principle, directly encode motion within a scene. Many learning-based and model-based methods exist that estimate event-based optical flow, however the temporally dense yet spatially sparse nature…

Image and Video Processing · Electrical Eng. & Systems 2025-11-18 Pritam P. Karmokar , William J. Beksi

We then introduce a novel hierarchical knowledge distillation strategy that incorporates the similarity matrix, feature representation, and response map-based distillation to guide the learning of the student Transformer network. We also…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Shiao Wang , Xiao Wang , Chao Wang , Liye Jin , Lin Zhu , Bo Jiang , Yonghong Tian , Jin Tang

State-of-the-art machine-learning methods for event cameras treat events as dense representations and process them with conventional deep neural networks. Thus, they fail to maintain the sparsity and asynchronous nature of event data,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Daniel Gehrig , Davide Scaramuzza

Eye-tracking technology is integral to numerous consumer electronics applications, particularly in the realm of virtual and augmented reality (VR/AR). These applications demand solutions that excel in three crucial aspects: low-latency,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Baoheng Zhang , Yizhao Gao , Jingyuan Li , Hayden Kwok-Hay So

Identifying independently moving objects is an essential task for dynamic scene understanding. However, traditional cameras used in dynamic scenes may suffer from motion blur or exposure artifacts due to their sampling principle. By…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Yi Zhou , Guillermo Gallego , Xiuyuan Lu , Siqi Liu , Shaojie Shen

Gathering data and identifying events in various traffic situations remains an essential challenge for the systematic evaluation of a perception system's performance. Analyzing large-scale, typically unstructured, multi-modal, time series…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Tayssir Bouraffa , Elias Kjellberg Carlson , Erik Wessman , Ali Nouri , Pierre Lamart , Christian Berger

Vision Transformers (ViTs) have achieved significant success in computer vision. However, their intensive computations and massive memory footprint challenge ViTs' deployment on embedded devices, calling for efficient ViTs. Among them,…

Hardware Architecture · Computer Science 2024-04-01 Haikuo Shao , Huihong Shi , Wendong Mao , Zhongfeng Wang

Because of their high temporal resolution, increased resilience to motion blur, and very sparse output, event cameras have been shown to be ideal for low-latency and low-bandwidth feature tracking, even in challenging scenarios. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Nico Messikommer , Carter Fang , Mathias Gehrig , Giovanni Cioffi , Davide Scaramuzza

Data stream monitoring is a crucial task which has a wide range of applications. The majority of existing research in this area can be broadly classified into two types, monitoring value sum and monitoring value cardinality. In this paper,…

Databases · Computer Science 2025-05-21 Siyuan Dong , Yuxuan Tian , Wenhan Ma , Tong Yang , Chenye Zhang , Yuhan Wu , Kaicheng Yang , Yaojing Wang

Among hardware accelerators for deep-learning inference, data flow implementations offer low latency and high throughput capabilities. In these architectures, each neuron is mapped to a dedicated hardware unit, making them well-suited for…

Machine Learning · Computer Science 2026-03-10 Tobias Habermann , Michael Mecik , Zhenyu Wang , César David Vera , Martin Kumm , Mario Garrido

Physics experiments produce enormous amount of raw data, counted in petabytes per day. Hence, there is large effort to reduce this amount, mainly by using some filters. The situation can be improved by additionally applying some data…

Information Theory · Computer Science 2015-11-04 Jarek Duda , Grzegorz Korcyl

Event cameras have emerged as a promising sensing modality for autonomous navigation systems, owing to their high temporal resolution, high dynamic range and negligible motion blur. To process the asynchronous temporal event streams from…

Machine Learning · Computer Science 2024-03-26 Shrihari Sridharan , Surya Selvam , Kaushik Roy , Anand Raghunathan

This paper presents a novel and fast approach for ground plane segmentation in a LiDAR point cloud, specifically optimized for processing speed and hardware efficiency on FPGA hardware platforms. Our approach leverages a channel-based…

Signal Processing · Electrical Eng. & Systems 2024-08-21 Xiao Zhang , Zhanhong Huang , Garcia Gonzalez Antony , Witek Jachimczyk , Xinming Huang