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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

Performing low hertz labeling for surgical videos at intervals can greatly releases the burden of surgeons. In this paper, we study the semi-supervised instrument segmentation from robotic surgical videos with sparse annotations. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Zixu Zhao , Yueming Jin , Xiaojie Gao , Qi Dou , Pheng-Ann Heng

Image saliency detection has recently witnessed rapid progress due to deep convolutional neural networks. However, none of the existing methods is able to identify object instances in the detected salient regions. In this paper, we present…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Guanbin Li , Yuan Xie , Liang Lin , Yizhou Yu

Weakly supervised 3D instance segmentation is essential for 3D scene understanding, especially as the growing scale of data and high annotation costs associated with fully supervised approaches. Existing methods primarily rely on two forms…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Xuexun Liu , Xiaoxu Xu , Qiudan Zhang , Lin Ma , Xu Wang

Due to the problem of performance constraints of unsupervised video object detection, its large-scale application is limited. In response to this pain point, we propose another excellent method to solve this problematic point. By…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Chao Hu , Liqiang Zhu

In this paper, we consider the task of unsupervised object discovery in videos. Previous works have shown promising results via processing optical flows to segment objects. However, taking flow as input brings about two drawbacks. First,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Shuangrui Ding , Weidi Xie , Yabo Chen , Rui Qian , Xiaopeng Zhang , Hongkai Xiong , Qi Tian

Dense and versatile image representations underpin the success of virtually all computer vision applications. However, state-of-the-art networks, such as transformers, produce low-resolution feature grids, which are suboptimal for dense…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Nikita Araslanov , Anna Sonnweber , Daniel Cremers

Modern one-stage video instance segmentation networks suffer from two limitations. First, convolutional features are neither aligned with anchor boxes nor with ground-truth bounding boxes, reducing the mask sensitivity to spatial location.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Minghan Li , Shuai Li , Lida Li , Lei Zhang

Temporal action segmentation in untrimmed videos has gained increased attention recently. However, annotating action classes and frame-wise boundaries is extremely time consuming and cost intensive, especially on large-scale datasets. To…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Wei Lin , Anna Kukleva , Horst Possegger , Hilde Kuehne , Horst Bischof

We propose a novel end-to-end solution for video instance segmentation (VIS) based on transformers. Recently, the per-clip pipeline shows superior performance over per-frame methods leveraging richer information from multiple frames.…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Sukjun Hwang , Miran Heo , Seoung Wug Oh , Seon Joo Kim

Most existing methods realize 3D instance segmentation by extending those models used for 3D object detection or 3D semantic segmentation. However, these non-straightforward methods suffer from two drawbacks: 1) Imprecise bounding boxes or…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Jiahao Sun , Chunmei Qing , Junpeng Tan , Xiangmin Xu

Weakly supervised point cloud semantic segmentation methods that require 1\% or fewer labels, hoping to realize almost the same performance as fully supervised approaches, which recently, have attracted extensive research attention. A…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Tianfang Sun , Zhizhong Zhang , Xin Tan , Yanyun Qu , Yuan Xie , Lizhuang Ma

This work proposes a self-supervised learning system for segmenting rigid objects in RGB images. The proposed pipeline is trained on unlabeled RGB-D videos of static objects, which can be captured with a camera carried by a mobile robot. A…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Shiyang Lu , Yunfu Deng , Abdeslam Boularias , Kostas Bekris

Small sample instance segmentation is a very challenging task, and many existing methods follow the training strategy of meta-learning which pre-train models on support set and fine-tune on query set. The pre-training phase, which is highly…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Ruting Chi , Zhiyi Huang , Yuexing Han

We introduce a novel robotic system for improving unseen object instance segmentation in the real world by leveraging long-term robot interaction with objects. Previous approaches either grasp or push an object and then obtain the…

Recently, query based object detection frameworks achieve comparable performance with previous state-of-the-art object detectors. However, how to fully leverage such frameworks to perform instance segmentation remains an open problem. In…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Yuxin Fang , Shusheng Yang , Xinggang Wang , Yu Li , Chen Fang , Ying Shan , Bin Feng , Wenyu Liu

Unsupervised video object segmentation (UVOS) is a per-pixel binary labeling problem which aims at separating the foreground object from the background in the video without using the ground truth (GT) mask of the foreground object. Most of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-24 Youngjo Lee , Hongje Seong , Euntai Kim

An intuition on human segmentation is that when a human is moving in a video, the video-context (e.g., appearance and motion clues) may potentially infer reasonable mask information for the whole human body. Inspired by this, based on…

Computer Vision and Pattern Recognition · Computer Science 2018-03-01 Xiaodan Liang , Yunchao Wei , Liang Lin , Yunpeng Chen , Xiaohui Shen , Jianchao Yang , Shuicheng Yan

The task of referring video object segmentation aims to segment the object in the frames of a given video to which the referring expressions refer. Previous methods adopt multi-stage approach and design complex pipelines to obtain promising…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Zhiwei Hu , Bo Chen , Yuan Gao , Zhilong Ji , Jinfeng Bai

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…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Jingze Chen , Junfeng Yao , Qiqin Lin , Rongzhou Zhou , Lei Li