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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…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Junjie Huang , Wei Zou , Zheng Zhu , Jiagang Zhu

In the paper, we propose a robust real-time visual odometry in dynamic environments via rigid-motion model updated by scene flow. The proposed algorithm consists of spatial motion segmentation and temporal motion tracking. The spatial…

机器人学 · 计算机科学 2019-07-22 Sangil Lee , Clark Youngdong Son , H. Jin Kim

Calibration of multi-camera systems is a key task for accurate object tracking. However, it remains a challenging problem in real-world conditions, where traditional methods are not applicable due to the lack of accurate floor plans,…

图像与视频处理 · 电气工程与系统科学 2025-12-08 Aleksandr Abramov

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…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Zhexiong Wan , Yuchao Dai , Yuxin Mao

The ability of predicting the future is important for intelligent systems, e.g. autonomous vehicles and robots to plan early and make decisions accordingly. Future scene parsing and optical flow estimation are two key tasks that help agents…

计算机视觉与模式识别 · 计算机科学 2017-11-10 Xiaojie Jin , Huaxin Xiao , Xiaohui Shen , Jimei Yang , Zhe Lin , Yunpeng Chen , Zequn Jie , Jiashi Feng , Shuicheng Yan

The paper deals with the error analysis of a navigation algorithm that uses as input a sequence of images acquired by a moving camera and a Digital Terrain Map (DTM) of the region been imaged by the camera during the motion. The main…

计算机视觉与模式识别 · 计算机科学 2011-08-15 Oleg Kupervasser , Ronen Lerner , Ehud Rivlin , Hector Rotstein

The goal of this work is to follow the displacement and possible deformation of a free particle in a fluid flow in 2D axi-symmetry, 2D or 3D using the classical finite elements method without the usual drawbacks finite elements bring for…

计算物理 · 物理学 2012-03-16 Baptiste Moreau , Philippe Dantan , Patrice Flaud , Benjamin Mauroy

What would be the effect of locally poking a static scene? We present an approach that learns naturally-looking global articulations caused by a local manipulation at a pixel level. Training requires only videos of moving objects but no…

计算机视觉与模式识别 · 计算机科学 2021-06-22 Andreas Blattmann , Timo Milbich , Michael Dorkenwald , Björn Ommer

Scene context is a powerful constraint on the geometry of objects within the scene in cases, such as surveillance, where the camera geometry is unknown and image quality may be poor. In this paper, we describe a method for estimating the…

计算机视觉与模式识别 · 计算机科学 2019-12-11 Pengfei Li , Weichao Qiu , Michael Peven , Gregory D. Hager , Alan L. Yuille

In this paper, we propose an approach to address the problem of 3D reconstruction of scenes from a single image captured by a light-field camera equipped with a rolling shutter sensor. Our method leverages the 3D information cues present in…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Hermes McGriff , Renato Martins , Nicolas Andreff , Cédric Demonceaux

With the recent advent of methods that allow for real-time computation, dense 3D flows have become a viable basis for fast camera motion estimation. Most importantly, dense flows are more robust than the sparse feature matching techniques…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Thomas W. Mitchel , Christian Wuelker , Jin Seob Kim , Sipu Ruan , Gregory S. Chirikjian

In recent years, consumer-level depth cameras have been adopted for various applications. However, they often produce depth maps at only a moderately high frame rate (approximately 30 frames per second), preventing them from being used for…

图形学 · 计算机科学 2018-11-06 Ming-Ze Yuan , Lin Gao , Hongbo Fu , Shihong Xia

Reliable self-localization is a foundational skill for many intelligent mobile platforms. This paper explores the use of event cameras for motion tracking thereby providing a solution with inherent robustness under difficult dynamics and…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Tao Liu , Runze Yuan , Yi'ang Ju , Xun Xu , Jiaqi Yang , Xiangting Meng , Xavier Lagorce , Laurent Kneip

As the ubiquity of smart mobile devices continues to rise, Optical Camera Communication systems have gained more attention as a solution for efficient and private data streaming. This system utilizes optical cameras to receive data from…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Hang Su , Ling Gao , Tao Liu , Laurent Kneip

Interpreting motion captured in image sequences is crucial for a wide range of computer vision applications. Typical estimation approaches include optical flow (OF), which approximates the apparent motion instantaneously in a scene, and…

计算机视觉与模式识别 · 计算机科学 2024-08-30 Tanner D. Harms , Steven L. Brunton , Beverley J. McKeon

We introduce a novel method to automatically adjust camera exposure for image processing and computer vision applications on mobile robot platforms. Because most image processing algorithms rely heavily on low-level image features that are…

计算机视觉与模式识别 · 计算机科学 2018-06-14 Inwook Shim , Tae-Hyun Oh , Joon-Young Lee , Jinwook Choi , Dong-Geol Choi , In So Kweon

Many organisms, from flies to humans, use visual signals to estimate their motion through the world. To explore the motion estimation problem, we have constructed a camera/gyroscope system that allows us to sample, at high temporal…

神经元与认知 · 定量生物学 2021-01-13 Shiva R. Sinha , William Bialek , Rob R. de Ruyter van Steveninck

Both a good understanding of geometrical concepts and a broad familiarity with objects lead to our excellent perception of moving objects. The human ability to detect and segment moving objects works in the presence of multiple objects,…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Pia Bideau , Erik Learned-Miller , Cordelia Schmid , Karteek Alahari

We propose a learning-based method that solves monocular stereo and can be extended to fuse depth information from multiple target frames. Given two unconstrained images from a monocular camera with known intrinsic calibration, our network…

计算机视觉与模式识别 · 计算机科学 2019-09-13 Kaixuan Wang , Shaojie Shen

Given two consecutive RGB-D images, we propose a model that estimates a dense 3D motion field, also known as scene flow. We take advantage of the fact that in robot manipulation scenarios, scenes often consist of a set of rigidly moving…

机器人学 · 计算机科学 2018-07-25 Lin Shao , Parth Shah , Vikranth Dwaracherla , Jeannette Bohg