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相关论文: Semantic Flow for Fast and Accurate Scene Parsing

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Video semantic segmentation is active in recent years benefited from the great progress of image semantic segmentation. For such a task, the per-frame image segmentation is generally unacceptable in practice due to high computation cost. To…

计算机视觉与模式识别 · 计算机科学 2020-11-13 Jiafan Zhuang , Zilei Wang , Bingke Wang

Self-supervised feed-forward methods for scene flow estimation offer real-time efficiency, but their supervision from two-frame point correspondences is unreliable and often breaks down under occlusions. Multi-frame supervision has the…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Qingwen Zhang , Chenhan Jiang , Xiaomeng Zhu , Yunqi Miao , Yushan Zhang , Olov Andersson , Patric Jensfelt

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

It is commonly believed that high internal resolution combined with expensive operations (e.g. atrous convolutions) are necessary for accurate semantic segmentation, resulting in slow speed and large memory usage. In this paper, we question…

计算机视觉与模式识别 · 计算机科学 2022-06-16 Tianjian Meng , Golnaz Ghiasi , Reza Mahjourian , Quoc V. Le , Mingxing Tan

Real-time semantic segmentation is desirable in many robotic applications with limited computation resources. One challenge of semantic segmentation is to deal with the object scale variations and leverage the context. How to perform…

计算机视觉与模式识别 · 计算机科学 2020-03-10 Zhanpeng Zhang , Kaipeng Zhang

Although existing semantic communication systems have achieved great success, they have not considered that the channel is time-varying wherein deep fading occurs occasionally. Moreover, the importance of each semantic feature differs from…

信号处理 · 电气工程与系统科学 2023-05-08 Kequan Zhou , Guangyi Zhang , Yunlong Cai , Qiyu Hu , Guanding Yu

Deep convolutional neutral networks have achieved great success on image recognition tasks. Yet, it is non-trivial to transfer the state-of-the-art image recognition networks to videos as per-frame evaluation is too slow and unaffordable.…

计算机视觉与模式识别 · 计算机科学 2017-06-06 Xizhou Zhu , Yuwen Xiong , Jifeng Dai , Lu Yuan , Yichen Wei

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

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…

计算机视觉与模式识别 · 计算机科学 2016-07-11 Bumsub Ham , Minsu Cho , Cordelia Schmid , Jean Ponce

Previous dominant methods for scene flow estimation focus mainly on input from two consecutive frames, neglecting valuable information in the temporal domain. While recent trends shift towards multi-frame reasoning, they suffer from rapidly…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Qingwen Zhang , Xiaomeng Zhu , Yushan Zhang , Yixi Cai , Olov Andersson , Patric Jensfelt

Scene flow estimation is a crucial component in the development of autonomous driving and 3D robotics, providing valuable information for environment perception and navigation. Despite the advantages of learning-based scene flow estimation…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Rahul Ahuja , Chris Baker , Wilko Schwarting

Real-time semantic segmentation is playing a more important role in computer vision, due to the growing demand for mobile devices and autonomous driving. Therefore, it is very important to achieve a good trade-off among performance, model…

计算机视觉与模式识别 · 计算机科学 2021-06-04 Ange Lou , Murray Loew

Urban-scene Image segmentation is an important and trending topic in computer vision with wide use cases like autonomous driving [1]. Starting with the breakthrough work of Long et al. [2] that introduces Fully Convolutional Networks…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Shorya Sharma

In deep CNN based models for semantic segmentation, high accuracy relies on rich spatial context (large receptive fields) and fine spatial details (high resolution), both of which incur high computational costs. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2020-07-13 Ping Hu , Federico Perazzi , Fabian Caba Heilbron , Oliver Wang , Zhe Lin , Kate Saenko , Stan Sclaroff

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,…

计算机视觉与模式识别 · 计算机科学 2023-12-22 Shili Zhou , Ruian He , Weimin Tan , Bo Yan

This paper presents a general framework to build fast and accurate algorithms for video enhancement tasks such as super-resolution, deblurring, and denoising. Essential to our framework is the realization that the accuracy, rather than the…

计算机视觉与模式识别 · 计算机科学 2021-09-16 Yu Feng , Patrick Hansen , Paul N. Whatmough , Guoyu Lu , Yuhao Zhu

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…

计算机视觉与模式识别 · 计算机科学 2017-03-28 Pichao Wang , Wanqing Li , Zhimin Gao , Yuyao Zhang , Chang Tang , Philip Ogunbona

Modern optical flow methods make use of salient scene feature points detected and matched within the scene as a basis for sparse-to-dense optical flow estimation. Current feature detectors however either give sparse, non uniform point…

计算机视觉与模式识别 · 计算机科学 2019-05-21 Felix Stephenson , Toby Breckon , Ioannis Katramados

Deep Convolutional Neural Networks (DCNNs) have recently shown outstanding performance in semantic image segmentation. However, state-of-the-art DCNN-based semantic segmentation methods usually suffer from high computational complexity due…

计算机视觉与模式识别 · 计算机科学 2020-04-06 Genshun Dong , Yan Yan , Chunhua Shen , Hanzi Wang

Given two consecutive frames from a pair of stereo cameras, 3D scene flow methods simultaneously estimate the 3D geometry and motion of the observed scene. Many existing approaches use superpixels for regularization, but may predict…

计算机视觉与模式识别 · 计算机科学 2017-10-09 Zhile Ren , Deqing Sun , Jan Kautz , Erik B. Sudderth