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We introduce a compact network for holistic scene flow estimation, called SENSE, which shares common encoder features among four closely-related tasks: optical flow estimation, disparity estimation from stereo, occlusion estimation, and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Huaizu Jiang , Deqing Sun , Varun Jampani , Zhaoyang Lv , Erik Learned-Miller , Jan Kautz

Aerial Image Segmentation is a particular semantic segmentation problem and has several challenging characteristics that general semantic segmentation does not have. There are two critical issues: The one is an extremely…

Computer Vision and Pattern Recognition · Computer Science 2021-03-12 Xiangtai Li , Hao He , Xia Li , Duo Li , Guangliang Cheng , Jianping Shi , Lubin Weng , Yunhai Tong , Zhouchen Lin

Optical Flow Estimation aims to find the 2D dense motion field between two frames. Due to the limitation of model structures and training datasets, existing methods often rely too much on local clues and ignore the integrity of objects,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Shili Zhou , Ruian He , Weimin Tan , Bo Yan

Semantic segmentation is one of the core tasks in the field of computer vision, and its goal is to accurately classify each pixel in an image. The traditional Unet model achieves efficient feature extraction and fusion through an…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Xuan Li , Quanchao Lu , Yankaiqi Li , Muqing Li , Yijiashun Qi

Traditional unsupervised optical flow methods are vulnerable to occlusions and motion boundaries due to lack of object-level information. Therefore, we propose UnSAMFlow, an unsupervised flow network that also leverages object information…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Shuai Yuan , Lei Luo , Zhuo Hui , Can Pu , Xiaoyu Xiang , Rakesh Ranjan , Denis Demandolx

Although considerable progress has been made in semantic scene understanding under clear weather, it is still a tough problem under adverse weather conditions, such as dense fog, due to the uncertainty caused by imperfect observations.…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Xianzheng Ma , Zhixiang Wang , Yacheng Zhan , Yinqiang Zheng , Zheng Wang , Dengxin Dai , Chia-Wen Lin

Semantic Segmentation combines two sub-tasks: the identification of pixel-level image masks and the application of semantic labels to those masks. Recently, so-called Foundation Models have been introduced; general models trained on very…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 David Balaban , Justin Medich , Pranay Gosar , Justin Hart

An optical flow variational model is proposed for a sequence of images defined on a domain in $\mathbb{R}^2$. We introduce a regularization term given by the $L^1$ norm of a fractional differential operator. To solve the minimization…

Numerical Analysis · Mathematics 2015-12-07 Somayeh Gh. Bardeji , Isabel N. Figueiredo , Ercília Sousa

Semantic segmentation is a challenging problem due to difficulties in modeling context in complex scenes and class confusions along boundaries. Most literature either focuses on context modeling or boundary refinement, which is less…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Fangrui Zhu , Yi Zhu , Li Zhang , Chongruo Wu , Yanwei Fu , Mu Li

We propose 4 insights that help to significantly improve the performance of deep learning models that predict surface normals and semantic labels from a single RGB image. These insights are: (1) denoise the "ground truth" surface normals in…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Steven Hickson , Karthik Raveendran , Alireza Fathi , Kevin Murphy , Irfan Essa

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…

Computer Vision and Pattern Recognition · Computer Science 2018-06-22 René Schuster , Christian Bailer , Oliver Wasenmüller , Didier Stricker

We propose a new self-supervised approach to image feature learning from motion cue. This new approach leverages recent advances in deep learning in two directions: 1) the success of training deep neural network in estimating optical flow…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Bin Ma , Shubao Liu , Yingxuan Zhi , Qi Song

Finding image correspondences remains a challenging problem in the presence of intra-class variations and large changes in scene layout. Semantic flow methods are designed to handle images depicting different instances of the same object or…

Computer Vision and Pattern Recognition · Computer Science 2017-03-22 Bumsub Ham , Minsu Cho , Cordelia Schmid , Jean Ponce

Scene flow describes the motion of 3D objects in real world and potentially could be the basis of a good feature for 3D action recognition. However, its use for action recognition, especially in the context of convolutional neural networks…

Computer Vision and Pattern Recognition · Computer Science 2017-03-28 Pichao Wang , Wanqing Li , Zhimin Gao , Yuyao Zhang , Chang Tang , Philip Ogunbona

Convolutional neural networks (CNNs) show outstanding performance in many image processing problems, such as image recognition, object detection and image segmentation. Semantic segmentation is a very challenging task that requires…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Fan Jia , Jun Liu , Xue-cheng Tai

Real-time scene parsing is a fundamental feature for autonomous driving vehicles with multiple cameras. In this letter we demonstrate that sharing semantics between cameras with different perspectives and overlapped views can boost the…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Zhenzhen Xiang , Anbo Bao , Jie Li , Jianbo Su

Semantic segmentation is a fundamental task in multimedia processing, which can be used for analyzing, understanding, editing contents of images and videos, among others. To accelerate the analysis of multimedia data, existing segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Zhiyan Wang , Deyin Liu , Lin Yuanbo Wu , Song Wang , Xin Guo , Lin Qi

Accurate polyp segmentation remains challenging due to irregular lesion morphologies, ambiguous boundaries, and heterogeneous imaging conditions. While U-Net variants excel at local feature fusion, they often lack explicit mechanisms to…

Image and Video Processing · Electrical Eng. & Systems 2025-02-27 Pu Wang , Huaizhi Ma , Zhihua Zhang , Zhuoran Zheng

Retinal Optical Coherence Tomography (OCT) segmentation is essential for diagnosing pathology. Traditional methods focus on either spatial or spectral domains, overlooking their combined dependencies. We propose a triple-encoder network…

Image and Video Processing · Electrical Eng. & Systems 2025-11-26 Kristin Qi , Xinhan Di

Motion is a dominant cue in automated driving systems. Optical flow is typically computed to detect moving objects and to estimate depth using triangulation. In this paper, our motivation is to leverage the existing dense optical flow to…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Hazem Rashed , Senthil Yogamani , Ahmad El-Sallab , Pavel Krizek , Mohamed El-Helw