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Facial movements play a crucial role in conveying altitude and intentions, and facial optical flow provides a dynamic and detailed representation of it. However, the scarcity of datasets and a modern baseline hinders the progress in facial…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Jianzhi Lu , Ruian He , Shili Zhou , Weimin Tan , Bo Yan

Super-resolution is an ill-posed problem, since it allows for multiple predictions for a given low-resolution image. This fundamental fact is largely ignored by state-of-the-art deep learning based approaches. These methods instead train a…

计算机视觉与模式识别 · 计算机科学 2020-08-03 Andreas Lugmayr , Martin Danelljan , Luc Van Gool , Radu Timofte

Computing optical flow is a fundamental problem in computer vision. However, deep learning-based optical flow techniques do not perform well for non-rigid movements such as those found in faces, primarily due to lack of the training data…

计算机视觉与模式识别 · 计算机科学 2021-05-05 Muhannad Alkaddour , Usman Tariq , Abhinav Dhall

The occlusion problem remains a crucial challenge in optical flow estimation (OFE). Despite the recent significant progress brought about by deep learning, most existing deep learning OFE methods still struggle to handle occlusions; in…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Bo Wang , Yifan Zhang , Jian Li , Yang Yu , Zhenping Sun , Li Liu , Dewen Hu

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

Although many deep-learning-based super-resolution approaches have been proposed in recent years, because no ground truth is available in the inference stage, few can quantify the errors and uncertainties of the super-resolved results. For…

图像与视频处理 · 电气工程与系统科学 2023-08-10 Jingyi Shen , Han-Wei Shen

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

Recent work has shown that optical flow estimation can be formulated as a supervised learning task and can be successfully solved with convolutional networks. Training of the so-called FlowNet was enabled by a large synthetically generated…

计算机视觉与模式识别 · 计算机科学 2018-01-18 Nikolaus Mayer , Eddy Ilg , Philip Häusser , Philipp Fischer , Daniel Cremers , Alexey Dosovitskiy , Thomas Brox

We learn to compute optical flow by combining a classical spatial-pyramid formulation with deep learning. This estimates large motions in a coarse-to-fine approach by warping one image of a pair at each pyramid level by the current flow…

计算机视觉与模式识别 · 计算机科学 2016-11-22 Anurag Ranjan , Michael J. Black

Text-based generation and editing of 3D scenes hold significant potential for streamlining content creation through intuitive user interactions. While recent advances leverage 3D Gaussian Splatting (3DGS) for high-fidelity and real-time…

计算机视觉与模式识别 · 计算机科学 2025-04-17 Hyojun Go , Byeongjun Park , Jiho Jang , Jin-Young Kim , Soonwoo Kwon , Changick Kim

Using a layered representation for motion estimation has the advantage of being able to cope with discontinuities and occlusions. In this paper, we learn to estimate optical flow by combining a layered motion representation with deep…

计算机视觉与模式识别 · 计算机科学 2018-05-10 Xi Zhang , Di Ma , Xu Ouyang , Shanshan Jiang , Lin Gan , Gady Agam

Facial micro-expressions, characterized by their subtle and brief nature, are valuable indicators of genuine emotions. Despite their significance in psychology, security, and behavioral analysis, micro-expression recognition remains…

计算机视觉与模式识别 · 计算机科学 2025-10-16 Luu Tu Nguyen , Vu Tram Anh Khuong , Thi Bich Phuong Man , Thi Duyen Ngo , Thanh Ha Le

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

Optical flow estimation is crucial to a variety of vision tasks. Despite substantial recent advancements, achieving real-time on-device optical flow estimation remains a complex challenge. First, an optical flow model must be sufficiently…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Jamie Menjay Lin , Jisoo Jeong , Hong Cai , Risheek Garrepalli , Kai Wang , Fatih Porikli

We present a self-supervised approach to estimate flow in camera image and top-view grid map sequences using fully convolutional neural networks in the domain of automated driving. We extend existing approaches for self-supervised optical…

计算机视觉与模式识别 · 计算机科学 2019-04-30 Sascha Wirges , Johannes Gräter , Qiuhao Zhang , Christoph Stiller

The FlowNet demonstrated that optical flow estimation can be cast as a learning problem. However, the state of the art with regard to the quality of the flow has still been defined by traditional methods. Particularly on small displacements…

计算机视觉与模式识别 · 计算机科学 2016-12-07 Eddy Ilg , Nikolaus Mayer , Tonmoy Saikia , Margret Keuper , Alexey Dosovitskiy , Thomas Brox

In the domain of supervised scene flow estimation, the process of manual labeling is both time-intensive and financially demanding. This paper introduces SSFlowNet, a semi-supervised approach for scene flow estimation, that utilizes a blend…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Jingze Chen , Junfeng Yao , Qiqin Lin , Rongzhou Zhou , Lei Li

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

Diffusion models (DMs) have demonstrated remarkable success in real-world image super-resolution (SR), yet their reliance on time-consuming multi-step sampling largely hinders their practical applications. While recent efforts have…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Jiaqi Xu , Wenbo Li , Haoze Sun , Fan Li , Zhixin Wang , Long Peng , Jingjing Ren , Haoran Yang , Xiaowei Hu , Renjing Pei , Pheng-Ann Heng

Video super-resolution (SR) aims to generate a sequence of high-resolution (HR) frames with plausible and temporally consistent details from their low-resolution (LR) counterparts. The generation of accurate correspondence plays a…

计算机视觉与模式识别 · 计算机科学 2018-10-26 Longguang Wang , Yulan Guo , Zaiping Lin , Xinpu Deng , Wei An
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