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Related papers: Optical Flow in Dense Foggy Scenes using Semi-Supe…

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In recent years, deep neural networks have shown remarkable progress in dense disparity estimation from dynamic scenes in monocular structured light systems. However, their performance significantly drops when applied in unseen…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Rukun Qiao , Hiroshi Kawasaki , Hongbin Zha

Motion blur is a fundamental problem in computer vision as it impacts image quality and hinders inference. Traditional deblurring algorithms leverage the physics of the image formation model and use hand-crafted priors: they usually produce…

Computer Vision and Pattern Recognition · Computer Science 2018-01-17 Huaijin Chen , Jinwei Gu , Orazio Gallo , Ming-Yu Liu , Ashok Veeraraghavan , Jan Kautz

Deep Learning methods usually require huge amounts of training data to perform at their full potential, and often require expensive manual labeling. Using synthetic images is therefore very attractive to train object detectors, as the…

Computer Vision and Pattern Recognition · Computer Science 2017-11-20 Stefan Hinterstoisser , Vincent Lepetit , Paul Wohlhart , Kurt Konolige

The optical flow of natural scenes is a combination of the motion of the observer and the independent motion of objects. Existing algorithms typically focus on either recovering motion and structure under the assumption of a purely static…

Computer Vision and Pattern Recognition · Computer Science 2017-05-04 Jonas Wulff , Laura Sevilla-Lara , Michael J. Black

We systematically compare and analyze a set of key components in unsupervised optical flow to identify which photometric loss, occlusion handling, and smoothness regularization is most effective. Alongside this investigation we construct a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-17 Rico Jonschkowski , Austin Stone , Jonathan T. Barron , Ariel Gordon , Kurt Konolige , Anelia Angelova

Semantic segmentation and semantic image synthesis are two representative tasks in visual perception and generation. While existing methods consider them as two distinct tasks, we propose a unified framework (SemFlow) and model them as a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Chaoyang Wang , Xiangtai Li , Lu Qi , Henghui Ding , Yunhai Tong , Ming-Hsuan Yang

Point clouds are naturally sparse, while image pixels are dense. The inconsistency limits feature fusion from both modalities for point-wise scene flow estimation. Previous methods rarely predict scene flow from the entire point clouds of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Chensheng Peng , Guangming Wang , Xian Wan Lo , Xinrui Wu , Chenfeng Xu , Masayoshi Tomizuka , Wei Zhan , Hesheng Wang

Imaging in low light is challenging due to low photon count and low SNR. Short-exposure images suffer from noise, while long exposure can induce blur and is often impractical. A variety of denoising, deblurring, and enhancement techniques…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Chen Chen , Qifeng Chen , Jia Xu , Vladlen Koltun

This paper presents an investigation into the estimation of optical and scene flow using RGBD information in scenarios where the RGB modality is affected by noise or captured in dark environments. Existing methods typically rely solely on…

Computer Vision and Pattern Recognition · Computer Science 2023-07-31 Youjie Zhou , Guofeng Mei , Yiming Wang , Fabio Poiesi , Yi Wan

Unsupervised optical flow methods typically lack reliable uncertainty estimation, limiting their robustness and interpretability. We propose U$^{2}$Flow, the first recurrent unsupervised framework that jointly estimates optical flow and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Xunpei Sun , Wenwei Lin , Yi Chang , Gang Chen

Learning-based visual odometry and SLAM methods demonstrate a steady improvement over past years. However, collecting ground truth poses to train these methods is difficult and expensive. This could be resolved by training in an…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Igor Slinko , Anna Vorontsova , Dmitry Zhukov , Olga Barinova , Anton Konushin

Deep neural network based methods are the state of the art in various image restoration problems. Standard supervised learning frameworks require a set of noisy measurement and clean image pairs for which a distance between the output of…

Image and Video Processing · Electrical Eng. & Systems 2021-03-31 Rihuan Ke , Carola-Bibiane Schönlieb

Despite great success in human parsing, progress for parsing other deformable articulated objects, like animals, is still limited by the lack of labeled data. In this paper, we use synthetic images and ground truth generated from CAD animal…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Jiteng Mu , Weichao Qiu , Gregory Hager , Alan Yuille

State-of-the-art lidar-based 3D object detection methods rely on supervised learning and large labeled datasets. However, annotating lidar data is resource-consuming, and depending only on supervised learning limits the applicability of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Ekim Yurtsever , Emeç Erçelik , Mingyu Liu , Zhijie Yang , Hanzhen Zhang , Pınar Topçam , Maximilian Listl , Yılmaz Kaan Çaylı , Alois Knoll

In this paper, we combine deep learning concepts and some proper orthogonal decomposition (POD) model reduction methods for predicting flow in heterogeneous porous media. Nonlinear flow dynamics is studied, where the dynamics is regarded as…

Numerical Analysis · Mathematics 2025-09-12 Siu Wun Cheung , Eric T. Chung , Yalchin Efendiev , Eduardo Gildin , Yating Wang , Jingyan Zhang

Scene flow describes the 3D position as well as the 3D motion of each pixel in an image. Such algorithms are the basis for many state-of-the-art autonomous or automated driving functions. For verification and training large amounts of…

Computer Vision and Pattern Recognition · Computer Science 2018-09-03 Oliver Wasenmüller , René Schuster , Didier Stricker , Karl Leiss , Jürger Pfister , Oleksandra Ganus , Julian Tatsch , Artem Savkin , Nikolas Brasch

As vision based perception methods are usually built on the normal light assumption, there will be a serious safety issue when deploying them into low light environments. Recently, deep learning based methods have been proposed to enhance…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Junjie Hu , Xiyue Guo , Junfeng Chen , Guanqi Liang , Fuqin Deng , Tin lun Lam

Recurrent feedback connections in the mammalian visual system have been hypothesized to play a role in synthesizing input in the theoretical framework of analysis by synthesis. The comparison of internally synthesized representation with…

Computer Vision and Pattern Recognition · Computer Science 2017-05-23 Hao Wang , Xingyu Lin , Yimeng Zhang , Tai Sing Lee

Retail scenes usually contain densely packed high number of objects in each image. Standard object detection techniques use fully supervised training methodology. This is highly costly as annotating a large dense retail object detection…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Jaydeep Chauhan , Srikrishna Varadarajan , Muktabh Mayank Srivastava

In this paper, we tackle the problem of enhancing real-world low-light images with significant noise in an unsupervised fashion. Conventional unsupervised learning-based approaches usually tackle the low-light image enhancement problem…

Image and Video Processing · Electrical Eng. & Systems 2022-03-29 Wei Xiong , Ding Liu , Xiaohui Shen , Chen Fang , Jiebo Luo