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Autonomous driving systems require a quick and robust perception of the nearby environment to carry out their routines effectively. With the aim to avoid collisions and drive safely, autonomous driving systems rely heavily on object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Abdul Hannan Khan , Syed Tahseen Raza Rizvi , Dheeraj Varma Chittari Macharavtu , Andreas Dengel

We present a method for determining surface flows from solar images based upon optical flow techniques. We apply the method to sets of images obtained by a variety of solar imagers to assess its performance. The {\tt opflow3d} procedure is…

Computer Vision and Pattern Recognition · Computer Science 2015-12-02 Neal Hurlburt , Steve Jaffey

Event cameras such as DAVIS can simultaneously output high temporal resolution events and low frame-rate intensity images, which own great potential in capturing scene motion, such as optical flow estimation. Most of the existing optical…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Zhexiong Wan , Yuchao Dai , Yuxin Mao

While text-to-video diffusion models have made significant strides, many still face challenges in generating videos with temporal consistency. Within diffusion frameworks, guidance techniques have proven effective in enhancing output…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Hyelin Nam , Jaemin Kim , Dohun Lee , Jong Chul Ye

Key-point-based scene understanding is fundamental for autonomous driving applications. At the same time, optical flow plays an important role in many vision tasks. However, due to the implicit bias of equal attention on all points, classic…

Computer Vision and Pattern Recognition · Computer Science 2023-09-25 Zhonghua Yi , Hao Shi , Kailun Yang , Qi Jiang , Yaozu Ye , Ze Wang , Huajian Ni , Kaiwei Wang

Handling all together large displacements, motion details and occlusions remains an open issue for reliable computation of optical flow in a video sequence. We propose a two-step aggregation paradigm to address this problem. The idea is to…

Computer Vision and Pattern Recognition · Computer Science 2014-07-23 Denis Fortun , Patrick Bouthemy , Charles Kervrann

Monocular visual odometry (VO) is a fundamental computer vision problem with applications in autonomous navigation, augmented reality and more. While deep learning-based methods have recently shown superior accuracy compared to traditional…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Dominik Kuczkowski , Laura Ruotsalainen

Optical flow techniques are becoming increasingly performant and robust when estimating motion in a scene, but their performance has yet to be proven in the area of facial expression recognition. In this work, a variety of optical flow…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Benjamin Allaert , Isaac Ronald Ward , Ioan Marius Bilasco , Chaabane Djeraba , Mohammed Bennamoun

Ensuring safe driving while maintaining travel efficiency for autonomous vehicles in dynamic and occluded environments is a critical challenge. This paper proposes an occlusion-aware contingency safety-critical planning approach for…

Robotics · Computer Science 2025-11-25 Lei Zheng , Rui Yang , Minzhe Zheng , Zengqi Peng , Michael Yu Wang , Jun Ma

Motion is a dominant cue in automated driving systems. Optical flow is typically computed to detect moving objects and to estimate depth using triangulation. In this paper, our motivation is to leverage the existing dense optical flow to…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Hazem Rashed , Senthil Yogamani , Ahmad El-Sallab , Pavel Krizek , Mohamed El-Helw

Today's autonomous vehicles rely extensively on high-definition 3D maps to navigate the environment. While this approach works well when these maps are completely up-to-date, safe autonomous vehicles must be able to corroborate the map's…

Computer Vision and Pattern Recognition · Computer Science 2016-12-09 Ari Seff , Jianxiong Xiao

This paper introduces a novel perception framework that has the ability to identify and track objects in autonomous vehicle's field of view. The proposed algorithms don't require any training for achieving this goal. The framework makes use…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Suryansh Saxena , Isaac K Isukapati

Many applications such as autonomous navigation, urban planning and asset monitoring, rely on the availability of accurate information about objects and their geolocations. In this paper we propose to automatically detect and compute the…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Vladimir A. Krylov , Eamonn Kenny , Rozenn Dahyot

It is hard to densely track a nonrigid object in long term, which is a fundamental research issue in the computer vision community. This task often relies on estimating pairwise correspondences between images over time where the error is…

Computer Vision and Pattern Recognition · Computer Science 2016-03-08 Wenbin Li , Darren Cosker , Matthew Brown

Autonomous radar has been an integral part of advanced driver assistance systems due to its robustness to adverse weather and various lighting conditions. Conventional automotive radars use digital signal processing (DSP) algorithms to…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Xu Dong , Pengluo Wang , Pengyue Zhang , Langechuan Liu

Accurate fall detection for the assistance of older people is crucial to reduce incidents of deaths or injuries due to falls. Meanwhile, a vision-based fall detection system has shown some significant results to detect falls. Still,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Sagar Chhetri , Abeer Alsadoon , Thair Al Dala in , P. W. C. Prasad , Tarik A. Rashid , Angelika Maag

Event cameras respond to scene dynamics and offer advantages to estimate motion. Following recent image-based deep-learning achievements, optical flow estimation methods for event cameras have rushed to combine those image-based methods…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Shintaro Shiba , Yoshimitsu Aoki , Guillermo Gallego

Radar has shown strong potential for robust perception in autonomous driving; however, raw radar images are frequently degraded by noise and "ghost" artifacts, making object detection based solely on semantic features highly challenging. To…

Robotics · Computer Science 2025-09-23 Shuocheng Yang , Zikun Xu , Jiahao Wang , Shahid Nawaz , Jianqiang Wang , Shaobing Xu

Unsupervised localization and segmentation are long-standing robot vision challenges that describe the critical ability for an autonomous robot to learn to decompose images into individual objects without labeled data. These tasks are…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Xinyu Zhang , Abdeslam Boularias

Adverse weather conditions and occlusions in urban environments result in impaired perception. The uncertainties are handled in different modules of an automated vehicle, ranging from sensor level over situation prediction until motion…

Robotics · Computer Science 2018-11-01 Omer Sahin Tas , Christoph Stiller