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Related papers: OE3DIS: Open-Ended 3D Point Cloud Instance Segment…

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Open-vocabulary instance segmentation aims at segmenting novel classes without mask annotations. It is an important step toward reducing laborious human supervision. Most existing works first pretrain a model on captioned images covering…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Dat Huynh , Jason Kuen , Zhe Lin , Jiuxiang Gu , Ehsan Elhamifar

Open-vocabulary object detection (OVOD) aims to detect the objects beyond the set of classes observed during training. This work introduces a straightforward and efficient strategy that utilizes pre-trained vision-language models (VLM),…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Shilin Xu , Xiangtai Li , Size Wu , Wenwei Zhang , Yunhai Tong , Chen Change Loy

We introduce EvObj for unsupervised 3D instance segmentation that bridges the geometric domain gap between synthetic pretraining data and real-world point clouds. Current methods suffer from structural discrepancies when transferring object…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Jiahao Chen , Zihui Zhang , Yafei Yang , Jinxi Li , Shenxing Wei , Zhixuan Sun , Bo Yang

Open-vocabulary 3D instance segmentation is a core capability for robotics and AR/VR, but prior methods trade one bottleneck for another: multi-stage 2D+3D pipelines aggregate foundation-model outputs at hundreds of seconds per scene, while…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Chris Choy , Junha Lee , Chunghyun Park , Minsu Cho , Jan Kautz

Object detection (OD) in computer vision has made significant progress in recent years, transitioning from closed-set labels to open-vocabulary detection (OVD) based on large-scale vision-language pre-training (VLP). However, current…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Yiyang Yao , Peng Liu , Tiancheng Zhao , Qianqian Zhang , Jiajia Liao , Chunxin Fang , Kyusong Lee , Qing Wang

Separating 3D point clouds into individual instances is an important task for 3D vision. It is challenging due to the unknown and varying number of instances in a scene. Existing deep learning based works focus on a two-step pipeline: first…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Ruihang Chu , Yukang Chen , Tao Kong , Lu Qi , Lei Li

Although deep learning methods have achieved advanced video object recognition performance in recent years, perceiving heavily occluded objects in a video is still a very challenging task. To promote the development of occlusion…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Jiyang Qi , Yan Gao , Yao Hu , Xinggang Wang , Xiaoyu Liu , Xiang Bai , Serge Belongie , Alan Yuille , Philip H. S. Torr , Song Bai

In this paper, we study the problem of 3D object segmentation from raw point clouds. Unlike all existing methods which usually require a large amount of human annotations for full supervision, we propose the first unsupervised method,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Ziyang Song , Bo Yang

To ease the difficulty of acquiring annotation labels in 3D data, a common method is using unsupervised and open-vocabulary semantic segmentation, which leverage 2D CLIP semantic knowledge. In this paper, unlike previous research that…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Fuyang Yu , Runze Tian , Zhen Wang , Xiaochuan Wang , Xiaohui Liang

In this paper, we consider the problem of open-vocabulary semantic segmentation (OVS), which aims to segment objects of arbitrary classes instead of pre-defined, closed-set categories. The main contributions are as follows: First, we…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Jilan Xu , Junlin Hou , Yuejie Zhang , Rui Feng , Yi Wang , Yu Qiao , Weidi Xie

Open-vocabulary object detection (OVD) aims to scale up vocabulary size to detect objects of novel categories beyond the training vocabulary. Recent work resorts to the rich knowledge in pre-trained vision-language models. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Peixian Chen , Kekai Sheng , Mengdan Zhang , Mingbao Lin , Yunhang Shen , Shaohui Lin , Bo Ren , Ke Li

3D instance segmentation is an important task for real-world applications. To avoid costly manual annotations, existing methods have explored generating pseudo labels by transferring 2D masks from foundation models to 3D. However, this…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Juan Wang , Yasutomo Kawanishi , Tomo Miyazaki , Zhijie Wang , Shinichiro Omachi

Open-World Instance Segmentation (OWIS) is an emerging research topic that aims to segment class-agnostic object instances from images. The mainstream approaches use a two-stage segmentation framework, which first locates the candidate…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Xizhe Xue , Dongdong Yu , Lingqiao Liu , Yu Liu , Satoshi Tsutsui , Ying Li , Zehuan Yuan , Ping Song , Mike Zheng Shou

Video object segmentation (VOS) describes the task of segmenting a set of objects in each frame of a video. In the semi-supervised setting, the first mask of each object is provided at test time. Following the one-shot principle,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Tim Meinhardt , Laura Leal-Taixe

Audio-visual segmentation aims to separate sounding objects from videos by predicting pixel-level masks based on audio signals. Existing methods primarily concentrate on closed-set scenarios and direct audio-visual alignment and fusion,…

Machine Learning · Computer Science 2026-03-31 Shengkai Chen , Yifang Yin , Jinming Cao , Shili Xiang , Zhenguang Liu , Roger Zimmermann

Monocular 3D object detection has recently shown promising results, however there remain challenging problems. One of those is the lack of invariance to different camera intrinsic parameters, which can be observed across different 3D object…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Jonas Heylen , Mark De Wolf , Bruno Dawagne , Marc Proesmans , Luc Van Gool , Wim Abbeloos , Hazem Abdelkawy , Daniel Olmeda Reino

Open-set 3D segmentation represents a major point of interest for multiple downstream robotics and augmented/virtual reality applications. We present a decoupled 3D segmentation pipeline to ensure modularity and adaptability to novel 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Luis Wiedmann , Luca Wiehe , David Rozenberszki

Point cloud semantic segmentation plays an essential role in autonomous driving, providing vital information about drivable surfaces and nearby objects that can aid higher level tasks such as path planning and collision avoidance. While…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Ozan Unal , Luc Van Gool , Dengxin Dai

Open-Vocabulary Segmentation (OVS) aims to segment image regions beyond predefined category sets by leveraging semantic descriptions. While CLIP based approaches excel in semantic generalization, they frequently lack the fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Haoxi Zeng , Qiankun Liu , Yi Bin , Haiyue Zhang , Yujuan Ding , Guoqing Wang , Deqiang Ouyang , Heng Tao Shen

Many top-down architectures for instance segmentation achieve significant success when trained and tested on pre-defined closed-world taxonomy. However, when deployed in the open world, they exhibit notable bias towards seen classes and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Tarun Kalluri , Weiyao Wang , Heng Wang , Manmohan Chandraker , Lorenzo Torresani , Du Tran
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