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Motion estimation is one of the core challenges in computer vision. With traditional dual-frame approaches, occlusions and out-of-view motions are a limiting factor, especially in the context of environmental perception for vehicles due to…

计算机视觉与模式识别 · 计算机科学 2020-11-05 René Schuster , Christian Unger , Didier Stricker

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…

计算机视觉与模式识别 · 计算机科学 2025-06-12 Mo Zhou , Jianwei Wang , Xuanmeng Zhang , Dylan Campbell , Kai Wang , Long Yuan , Wenjie Zhang , Xuemin Lin

3D point-cloud-based perception is a challenging but crucial computer vision task. A point-cloud consists of a sparse, unstructured, and unordered set of points. To understand a point-cloud, previous point-based methods, such as PointNet++,…

机器人学 · 计算机科学 2021-03-25 Chenfeng Xu , Bohan Zhai , Bichen Wu , Tian Li , Wei Zhan , Peter Vajda , Kurt Keutzer , Masayoshi Tomizuka

Occlusion is an inevitable and critical problem in unsupervised optical flow learning. Existing methods either treat occlusions equally as non-occluded regions or simply remove them to avoid incorrectness. However, the occlusion regions can…

计算机视觉与模式识别 · 计算机科学 2020-07-01 Kunming Luo , Chuan Wang , Nianjin Ye , Shuaicheng Liu , Jue Wang

Optical flow is a classical task that is important to the vision community. Classical optical flow estimation uses two frames as input, whilst some recent methods consider multiple frames to explicitly model long-range information. The…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Qiaole Dong , Yanwei Fu

Occlusions play an important role in disparity and optical flow estimation, since matching costs are not available in occluded areas and occlusions indicate depth or motion boundaries. Moreover, occlusions are relevant for motion…

计算机视觉与模式识别 · 计算机科学 2018-08-09 Eddy Ilg , Tonmoy Saikia , Margret Keuper , Thomas Brox

We present FlowIt, a novel architecture for optical flow estimation designed to robustly handle large pixel displacements. At its core, FlowIt leverages a hierarchical transformer architecture that captures extensive global context,…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Sadra Safadoust , Fabio Tosi , Matteo Poggi , Fatma Güney

Image enhancement holds extensive applications in real-world scenarios due to complex environments and limitations of imaging devices. Conventional methods are often constrained by their tailored models, resulting in diminished robustness…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Yixuan Zhu , Wenliang Zhao , Ao Li , Yansong Tang , Jie Zhou , Jiwen Lu

The You Only Look Once (YOLO) series of detectors have established themselves as efficient and practical tools. However, their reliance on predefined and trained object categories limits their applicability in open scenarios. Addressing…

计算机视觉与模式识别 · 计算机科学 2024-02-23 Tianheng Cheng , Lin Song , Yixiao Ge , Wenyu Liu , Xinggang Wang , Ying Shan

With this work we are explaining the "You Only Look Once" (YOLO) single-stage object detection approach as a parallel classification of 10647 fixed region proposals. We support this view by showing that each of YOLOs output pixel is…

计算机视觉与模式识别 · 计算机科学 2022-01-24 Christian Limberg , Andrew Melnik , Augustin Harter , Helge Ritter

Optical flow estimation is a challenging problem remaining unsolved. Recent deep learning based optical flow models have achieved considerable success. However, these models often train networks from the scratch on standard optical flow…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Qiaole Dong , Chenjie Cao , Yanwei Fu

A major challenge for video semantic segmentation is the lack of labeled data. In most benchmark datasets, only one frame of a video clip is annotated, which makes most supervised methods fail to utilize information from the rest of the…

计算机视觉与模式识别 · 计算机科学 2019-12-02 Mingyu Ding , Zhe Wang , Bolei Zhou , Jianping Shi , Zhiwu Lu , Ping Luo

Recurrent neural networks are powerful tools for handling incomplete data problems in computer vision, thanks to their significant generative capabilities. However, the computational demand for these algorithms is too high to work in real…

计算机视觉与模式识别 · 计算机科学 2015-05-07 Ozgur Yilmaz

Recent progress in dense optical flow has been driven by increasingly complex architectures and multi-step refinement for test-time scaling. While these approaches achieve strong benchmark performance, they also require substantial…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Praroop Chanda , Suryansh Kumar

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…

计算机视觉与模式识别 · 计算机科学 2014-07-23 Denis Fortun , Patrick Bouthemy , Charles Kervrann

Spatiotemporal action localization requires the incorporation of two sources of information into the designed architecture: (1) temporal information from the previous frames and (2) spatial information from the key frame. Current…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Okan Köpüklü , Xiangyu Wei , Gerhard Rigoll

Optical flow estimation is one of the fundamental tasks in low-level computer vision, which describes the pixel-wise displacement and can be used in many other tasks. From the apparent aspect, the optical flow can be viewed as the…

计算机视觉与模式识别 · 计算机科学 2024-05-22 Yuhao Cheng , Siru Zhang , Yiqiang Yan

Optical flow estimation is crucial for various applications in vision and robotics. As the difficulty of collecting ground truth optical flow in real-world scenarios, most of the existing methods of learning optical flow still adopt…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Sheng-Chi Huang , Wei-Chen Chiu

We introduce AnytimeYOLO, a family of variants of the YOLO architecture that enables anytime object detection. Our AnytimeYOLO networks allow for interruptible inference, i.e., they provide a prediction at any point in time, a property…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Daniel Kuhse , Harun Teper , Sebastian Buschjäger , Chien-Yao Wang , Jian-Jia Chen

Low-light conditions and occluded scenarios impede object detection in real-world Internet of Things (IoT) applications like autonomous vehicles and security systems. While advanced machine learning models strive for accuracy, their…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Shubhabrata Mukherjee , Cory Beard , Zhu Li