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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…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Benjamin Allaert , Isaac Ronald Ward , Ioan Marius Bilasco , Chaabane Djeraba , Mohammed Bennamoun

Scene flow is a description of real world motion in 3D that contains more information than optical flow. Because of its complexity there exists no applicable variant for real-time scene flow estimation in an automotive or commercial vehicle…

计算机视觉与模式识别 · 计算机科学 2018-06-22 René Schuster , Christian Bailer , Oliver Wasenmüller , Didier Stricker

Learning-based optical flow estimation has been dominated with the pipeline of cost volume with convolutions for flow regression, which is inherently limited to local correlations and thus is hard to address the long-standing challenge of…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Haofei Xu , Jing Zhang , Jianfei Cai , Hamid Rezatofighi , Dacheng Tao

A significant challenge facing current optical flow methods is the difficulty in generalizing them well to the real world. This is mainly due to the high cost of hand-crafted datasets, and existing self-supervised methods are limited by…

计算机视觉与模式识别 · 计算机科学 2023-11-16 Han Ling

3D scene flow estimation from point clouds is a low-level 3D motion perception task in computer vision. Flow embedding is a commonly used technique in scene flow estimation, and it encodes the point motion between two consecutive frames.…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Guangming Wang , Yunzhe Hu , Zhe Liu , Yiyang Zhou , Masayoshi Tomizuka , Wei Zhan , Hesheng Wang

Optical flow estimation is a well-studied topic for automated driving applications. Many outstanding optical flow estimation methods have been proposed, but they become erroneous when tested in challenging scenarios that are commonly…

计算机视觉与模式识别 · 计算机科学 2023-01-12 Shihao Shen , Louis Kerofsky , Senthil Yogamani

Video super-resolution is currently one of the most active research topics in computer vision as it plays an important role in many visual applications. Generally, video super-resolution contains a significant component, i.e., motion…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Zhigang Tu , Hongyan Li , Wei Xie , Yuanzhong Liu , Shifu Zhang , Baoxin Li , Junsong Yuan

Dense optical flow estimation plays a key role in many robotic vision tasks. In the past few years, with the advent of deep learning, we have witnessed great progress in optical flow estimation. However, current networks often consist of a…

计算机视觉与模式识别 · 计算机科学 2021-03-23 Lingtong Kong , Chunhua Shen , Jie Yang

IQUAFLOW is a new image quality framework that provides a set of tools to assess image quality. The user can add custom metrics that can be easily integrated. Furthermore, iquaflow allows to measure quality by using the performance of AI…

计算机视觉与模式识别 · 计算机科学 2022-10-25 P. Gallés , K. Takats , M. Hernández-Cabronero , D. Berga , L. Pega , L. Riordan-Chen , C. Garcia , G. Becker , A. Garriga , A. Bukva , J. Serra-Sagristà , D. Vilaseca , J. Marín

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

The convolutional neural network model for optical flow estimation usually outputs a low-resolution(LR) optical flow field. To obtain the corresponding full image resolution,interpolation and variational approach are the most common…

计算机视觉与模式识别 · 计算机科学 2018-09-05 Liping Zhang , Zongqing Lu , Qingmin Liao

Complex algebraic calculations can be performed by reconstructing analytic results from numerical evaluations over finite fields. We describe FiniteFlow, a framework for defining and executing numerical algorithms over finite fields and…

高能物理 - 唯象学 · 物理学 2019-07-18 Tiziano Peraro

Optical flow, which expresses pixel displacement, is widely used in many computer vision tasks to provide pixel-level motion information. However, with the remarkable progress of the convolutional neural network, recent state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2021-11-11 Ruibing Jin , Guosheng Lin , Changyun Wen , Jianliang Wang , Fayao Liu

Generative models have gained popularity for their potential applications in imaging science, such as image reconstruction, posterior sampling and data sharing. Flow-based generative models are particularly attractive due to their ability…

机器学习 · 计算机科学 2023-12-14 Varun A. Kelkar , Rucha Deshpande , Arindam Banerjee , Mark A. Anastasio

Making predictions of future frames is a critical challenge in autonomous driving research. Most of the existing methods for video prediction attempt to generate future frames in simple and fixed scenes. In this paper, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2018-06-01 Henglai Wei , Xiaochuan Yin , Penghong Lin

End-to-end trained convolutional neural networks have led to a breakthrough in optical flow estimation. The most recent advances focus on improving the optical flow estimation by improving the architecture and setting a new benchmark on the…

计算机视觉与模式识别 · 计算机科学 2021-06-03 D. B. de Jong , F. Paredes-Vallés , G. C. H. E. de Croon

Flow-matching models deliver state-of-the-art fidelity in image and video generation, but the inherent sequential denoising process renders them slower. Existing acceleration methods like distillation, trajectory truncation, and consistency…

计算机视觉与模式识别 · 计算机科学 2026-02-12 Divya Jyoti Bajpai , Dhruv Bhardwaj , Soumya Roy , Tejas Duseja , Harsh Agarwal , Aashay Sandansing , Manjesh Kumar Hanawal

As a bio-inspired sensor with high temporal resolution, the spiking camera has an enormous potential in real applications, especially for motion estimation in high-speed scenes. However, frame-based and event-based methods are not well…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Liwen Hu , Rui Zhao , Ziluo Ding , Lei Ma , Boxin Shi , Ruiqin Xiong , Tiejun Huang

Finding a transformation between two unknown probability distributions from finite samples is crucial for modeling complex data distributions and performing tasks such as sample generation, domain adaptation and statistical inference. One…

机器学习 · 计算机科学 2024-07-11 Zhe Xiong , Qiaoqiao Ding , Xiaoqun Zhang

Optical flow is the pattern of apparent motion of objects in a scene. The computation of optical flow is a critical component in numerous computer vision tasks such as object detection, visual object tracking, and activity recognition.…

信号处理 · 电气工程与系统科学 2024-01-15 Muhammad Wasim Nawaz , Abdesselam Bouzerdoum , Muhammad Mahboob Ur Rahman , Ghulam Abbas , Faizan Rashid