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Since the preparation of labeled data for training semantic segmentation networks of point clouds is a time-consuming process, weakly supervised approaches have been introduced to learn from only a small fraction of data. These methods are…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Gengxin Liu , Oliver van Kaick , Hui Huang , Ruizhen Hu

Learning a data-driven spatio-temporal semantic representation of the objects is the key to coherent and consistent labelling in video. This paper proposes to achieve semantic video object segmentation by learning a data-driven…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Tinghuai Wang

This paper presents a novel yet intuitive approach to unsupervised feature learning. Inspired by the human visual system, we explore whether low-level motion-based grouping cues can be used to learn an effective visual representation.…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Deepak Pathak , Ross Girshick , Piotr Dollár , Trevor Darrell , Bharath Hariharan

Instance segmentation in videos, which aims to segment and track multiple objects in video frames, has garnered a flurry of research attention in recent years. In this paper, we present a novel weakly supervised framework with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Liqi Yan , Qifan Wang , Siqi Ma , Jingang Wang , Changbin Yu

Pixel-level Scene Understanding is one of the fundamental problems in computer vision, which aims at recognizing object classes, masks and semantics of each pixel in the given image. Compared with image scene parsing, video scene parsing…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Biao Wu , Diankai Zhang , Si Gao , Chengjian Zheng , Shaoli Liu , Ning Wang

We present a novel form of interactive video object segmentation where a few clicks by the user helps the system produce a full spatio-temporal segmentation of the object of interest. Whereas conventional interactive pipelines take the…

Computer Vision and Pattern Recognition · Computer Science 2016-07-06 Suyog Dutt Jain , Kristen Grauman

Unsupervised learning from visual data is one of the most difficult challenges in computer vision, being a fundamental task for understanding how visual recognition works. From a practical point of view, learning from unsupervised visual…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

The tracking-by-detection paradigm today has become the dominant method for multi-object tracking and works by detecting objects in each frame and then performing data association across frames. However, its sequential frame-wise matching…

Computer Vision and Pattern Recognition · Computer Science 2022-12-21 Sanghyun Woo , Kwanyong Park , Seoung Wug Oh , In So Kweon , Joon-Young Lee

Building a large image dataset with high-quality object masks for semantic segmentation is costly and time consuming. In this paper, we introduce a principled semi-supervised framework that only uses a small set of fully supervised images…

Computer Vision and Pattern Recognition · Computer Science 2020-02-27 Mostafa S. Ibrahim , Arash Vahdat , Mani Ranjbar , William G. Macready

We propose a weakly-supervised multi-view learning approach to learn category-specific surface mapping without dense annotations. We learn the underlying surface geometry of common categories, such as human faces, cars, and airplanes, given…

Computer Vision and Pattern Recognition · Computer Science 2021-05-05 Nishant Rai , Aidas Liaudanskas , Srinivas Rao , Rodrigo Ortiz Cayon , Matteo Munaro , Stefan Holzer

Semantic segmentation for autonomous driving should be robust against various in-the-wild environments. Nighttime semantic segmentation is especially challenging due to a lack of annotated nighttime images and a large domain gap from…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Hongjae Lee , Changwoo Han , Jun-Sang Yoo , Seung-Won Jung

Video segmentation -- partitioning video frames into multiple segments or objects -- plays a critical role in a broad range of practical applications, from enhancing visual effects in movie, to understanding scenes in autonomous driving, to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Tianfei Zhou , Fatih Porikli , David Crandall , Luc Van Gool , Wenguan Wang

Weakly-supervised semantic segmentation under image tags supervision is a challenging task as it directly associates high-level semantic to low-level appearance. To bridge this gap, in this paper, we propose an iterative bottom-up and…

Computer Vision and Pattern Recognition · Computer Science 2018-06-13 Xiang Wang , Shaodi You , Xi Li , Huimin Ma

Semantic segmentation and object detection research have recently achieved rapid progress. However, the former task has no notion of different instances of the same object, and the latter operates at a coarse, bounding-box level. We propose…

Computer Vision and Pattern Recognition · Computer Science 2017-04-11 Anurag Arnab , Philip H. S Torr

This paper presents a novel approach for segmenting moving objects in unconstrained environments using guided convolutional neural networks. This guiding process relies on foreground masks from independent algorithms (i.e. state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Diego Ortego , Kevin McGuinness , Juan C. SanMiguel , Eric Arazo , José M. Martínez , Noel E. O'Connor

Pixel-level Scene Understanding is one of the fundamental problems in computer vision, which aims at recognizing object classes, masks and semantics of each pixel in the given image. Since the real-world is actually video-based rather than…

Image and Video Processing · Electrical Eng. & Systems 2023-06-06 Biao Wu , Shaoli Liu , Diankai Zhang , Chengjian Zheng , Si Gao , Xiaofeng Zhang , Ning Wang

Despite significant progress in semi-supervised learning for image object detection, several key issues are yet to be addressed for video object detection: (1) Achieving good performance for supervised video object detection greatly depends…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Tanvir Mahmud , Chun-Hao Liu , Burhaneddin Yaman , Diana Marculescu

Animals have evolved highly functional visual systems to understand motion, assisting perception even under complex environments. In this paper, we work towards developing a computer vision system able to segment objects by exploiting…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Charig Yang , Hala Lamdouar , Erika Lu , Andrew Zisserman , Weidi Xie

Image segmentation is an important component of many image understanding systems. It aims to group pixels in a spatially and perceptually coherent manner. Typically, these algorithms have a collection of parameters that control the degree…

Computer Vision and Pattern Recognition · Computer Science 2018-02-02 Marc Bosch , Christopher M. Gifford , Austin G. Dress , Clare W. Lau , Jeffrey G. Skibo , Gordon A. Christie

The task of assigning semantic classes and track identities to every pixel in a video is called video panoptic segmentation. Our work is the first that targets this task in a real-world setting requiring dense interpretation in both spatial…