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We propose an interactive approach for 3D instance segmentation, where users can iteratively collaborate with a deep learning model to segment objects in a 3D point cloud directly. Current methods for 3D instance segmentation are generally…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Theodora Kontogianni , Ekin Celikkan , Siyu Tang , Konrad Schindler

Recent works on open-vocabulary 3D instance segmentation show strong promise, but at the cost of slow inference speed and high computation requirements. This high computation cost is typically due to their heavy reliance on 3D clip…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Mohamed El Amine Boudjoghra , Angela Dai , Jean Lahoud , Hisham Cholakkal , Rao Muhammad Anwer , Salman Khan , Fahad Shahbaz Khan

In this work, we propose SAM3D, a novel framework that is able to predict masks in 3D point clouds by leveraging the Segment-Anything Model (SAM) in RGB images without further training or finetuning. For a point cloud of a 3D scene with…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Yunhan Yang , Xiaoyang Wu , Tong He , Hengshuang Zhao , Xihui Liu

This work focuses on multi-shot semi-supervised video object segmentation (MVOS), which aims at segmenting the target object indicated by an initial mask throughout a video with multiple shots. The existing VOS methods mainly focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Hengrui Hu , Kaining Ying , Henghui Ding

Amodal instance segmentation, which aims to detect and segment both visible and invisible parts of objects in images, plays a crucial role in various applications including autonomous driving, robotic manipulation, and scene understanding.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Wei-En Tai , Yu-Lin Shih , Cheng Sun , Yu-Chiang Frank Wang , Hwann-Tzong Chen

Open-vocabulary 3D instance segmentation is cutting-edge for its ability to segment 3D instances without predefined categories. However, progress in 3D lags behind its 2D counterpart due to limited annotated 3D data. To address this, recent…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Mi Yan , Jiazhao Zhang , Yan Zhu , He Wang

We introduce SAM3D, a new approach to semi-automatic zero-shot segmentation of 3D images building on the existing Segment Anything Model. We achieve fast and accurate segmentations in 3D images with a four-step strategy involving: user…

Image and Video Processing · Electrical Eng. & Systems 2024-08-09 Trevor J. Chan , Aarush Sahni , Yijin Fang , Jie Li , Alisha Luthra , Alison Pouch , Chamith S. Rajapakse

Recently, large-scale pre-trained models such as Segment-Anything Model (SAM) and Contrastive Language-Image Pre-training (CLIP) have demonstrated remarkable success and revolutionized the field of computer vision. These foundation vision…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Shichao Dong , Fayao Liu , Guosheng Lin

The current state-of-the-art methods for unsupervised video object segmentation (UVOS) require extensive training on video datasets with mask annotations, limiting their effectiveness in handling challenging scenarios. However, the Segment…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Zhenghao Zhang , Shengfan Zhang , Zhichao Wei , Zuozhuo Dai , Siyu Zhu

In this paper, we propose a training scheme called OVSeg3R to learn open-vocabulary 3D instance segmentation from well-studied 2D perception models with the aid of 3D reconstruction. OVSeg3R directly adopts reconstructed scenes from 2D…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Hongyang Li , Jinyuan Qu , Lei Zhang

This paper addresses the challenge of 3D instance segmentation by simultaneously leveraging 3D geometric and multi-view image information. Many previous works have applied deep learning techniques to 3D point clouds for instance…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Haoyu Guo , He Zhu , Sida Peng , Yuang Wang , Yujun Shen , Ruizhen Hu , Xiaowei Zhou

While recent feed-forward 3D reconstruction models provide a strong geometric foundation for scene understanding, extending them to 3D instance segmentation typically relies on a disjointed "lift-and-cluster" paradigm. Grouping dense…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Changyang Li , Xueqing Huang , Shin-Fang Chng , Huangying Zhan , Qingan Yan , Yi Xu

Contemporary point cloud segmentation approaches largely rely on richly annotated 3D training data. However, it is both time-consuming and challenging to obtain consistently accurate annotations for such 3D scene data. Moreover, there is…

Computer Vision and Pattern Recognition · Computer Science 2023-11-13 Jiaxu Liu , Zhengdi Yu , Toby P. Breckon , Hubert P. H. Shum

Precise optical inspection in industrial applications is crucial for minimizing scrap rates and reducing the associated costs. Besides merely detecting if a product is anomalous or not, it is crucial to know the distinct type of defect,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Ylli Sadikaj , Hongkuan Zhou , Lavdim Halilaj , Stefan Schmid , Steffen Staab , Claudia Plant

Panoptic segmentation of 3D scenes, involving the segmentation and classification of object instances in a dense 3D reconstruction of a scene, is a challenging problem, especially when relying solely on unposed 2D images. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Lojze Zust , Yohann Cabon , Juliette Marrie , Leonid Antsfeld , Boris Chidlovskii , Jerome Revaud , Gabriela Csurka

Interactive medical image segmentation (IMIS) has shown significant potential in enhancing segmentation accuracy by integrating iterative feedback from medical professionals. However, the limited availability of enough 3D medical data…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Chuyun Shen , Wenhao Li , Yuhang Shi , Xiangfeng Wang

Most recent 3D instance segmentation methods are open vocabulary, offering a greater flexibility than closed-vocabulary methods. Yet, they are limited to reasoning within a specific set of concepts, \ie the vocabulary, prompted by the user…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Guofeng Mei , Luigi Riz , Yiming Wang , Fabio Poiesi

3D part segmentation is a crucial and challenging task in 3D perception, playing a vital role in applications such as robotics, 3D generation, and 3D editing. Recent methods harness the powerful Vision Language Models (VLMs) for 2D-to-3D…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Yunhan Yang , Yukun Huang , Yuan-Chen Guo , Liangjun Lu , Xiaoyang Wu , Edmund Y. Lam , Yan-Pei Cao , Xihui Liu

Most 3D instance segmentation methods exploit a bottom-up strategy, typically including resource-exhaustive post-processing. For point grouping, bottom-up methods rely on prior assumptions about the objects in the form of hyperparameters,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Maksim Kolodiazhnyi , Anna Vorontsova , Anton Konushin , Danila Rukhovich

3D instance segmentation is crucial for applications demanding comprehensive 3D scene understanding. In this paper, we introduce a novel method that simultaneously learns coefficients and prototypes. Employing an overcomplete sampling…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Remco Royen , Leon Denis , Adrian Munteanu