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Related papers: PointSeg: A Training-Free Paradigm for 3D Scene Se…

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We introduce a novel, training-free system for reconstructing, understanding, and rendering 3D indoor scenes from a sparse set of unposed RGB images. Unlike traditional radiance field approaches that require dense views and per-scene…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Jiatong Xia , Lingqiao Liu

The success of Convolutional Neural Networks (CNNs) in 3D medical image segmentation relies on massive fully annotated 3D volumes for training that are time-consuming and labor-intensive to acquire. In this paper, we propose to annotate a…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Shuwei Zhai , Guotai Wang , Xiangde Luo , Qiang Yue , Kang Li , Shaoting Zhang

Pretraining on large labeled datasets is a prerequisite to achieve good performance in many computer vision tasks like 2D object recognition, video classification etc. However, pretraining is not widely used for 3D recognition tasks where…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Zaiwei Zhang , Rohit Girdhar , Armand Joulin , Ishan Misra

Universal medical image segmentation models have emerged as a promising paradigm due to their strong generalizability across diverse tasks, showing great potential for a wide range of clinical applications. This potential has been partly…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Yanwu Yang , Guinan Su , Jiesi Hu , Francesco Sammarco , Jonas Geiping , Thomas Wolfers

As a pioneering work, PointContrast conducts unsupervised 3D representation learning via leveraging contrastive learning over raw RGB-D frames and proves its effectiveness on various downstream tasks. However, the trend of large-scale…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Xiaoyang Wu , Xin Wen , Xihui Liu , Hengshuang Zhao

Camouflaged object detection (COD) poses a significant challenge in computer vision due to the high similarity between objects and their backgrounds. Existing approaches often rely on heavy training and large computational resources. While…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Wutao Liu , YiDan Wang , Pan Gao

Recent research has seen numerous supervised learning-based methods for 3D shape segmentation and remarkable performance has been achieved on various benchmark datasets. These supervised methods require a large amount of annotated data to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Xiang Li , Lingjing Wang , Yi Fang

Interactive segmentation allows efficient label generation by leveraging user-provided clicks to progressively refine predictions, which is critical when fully supervised labels are costly or generalization to unseen classes is needed.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Xueyang Kang , Zijian Yu , Kourosh Khoshelham , Liangliang Nan

Autonomous driving vehicles and robotic systems rely on accurate perception of their surroundings. Scene understanding is one of the crucial components of perception modules. Among all available sensors, LiDARs are one of the essential…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Ryan Razani , Ran Cheng , Ehsan Taghavi , Liu Bingbing

3D Gaussian Splatting has emerged as a powerful paradigm for explicit 3D scene representation, yet achieving efficient and consistent 3D segmentation remains challenging. Existing segmentation approaches typically rely on high-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Wentao Sun , Quanyun Wu , Hanqing Xu , Kyle Gao , Zhengsen Xu , Yiping Chen , Dedong Zhang , Lingfei Ma , John S. Zelek , Jonathan Li

Point clouds-based Networks have achieved great attention in 3D object classification, segmentation and indoor scene semantic parsing. In terms of face recognition, 3D face recognition method which directly consume point clouds as input is…

Computer Vision and Pattern Recognition · Computer Science 2019-11-25 Ziyu Zhang , Feipeng Da , Yi Yu

To advance the state of the art in the creation of 3D foundation models, this paper introduces the ConDense framework for 3D pre-training utilizing existing pre-trained 2D networks and large-scale multi-view datasets. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Xiaoshuai Zhang , Zhicheng Wang , Howard Zhou , Soham Ghosh , Danushen Gnanapragasam , Varun Jampani , Hao Su , Leonidas Guibas

Fusion of 2D images and 3D point clouds is important because information from dense images can enhance sparse point clouds. However, fusion is challenging because 2D and 3D data live in different spaces. In this work, we propose MVPNet…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Maximilian Jaritz , Jiayuan Gu , Hao Su

In this paper, we propose PASS3D to achieve point-wise semantic segmentation for 3D point cloud. Our framework combines the efficiency of traditional geometric methods with robustness of deep learning methods, consisting of two stages: At…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Xin Kong , Guangyao Zhai , Baoquan Zhong , Yong Liu

The objective of this work is to explore how to effectively and efficiently adapt pre-trained visual foundation models to various downstream tasks of semantic segmentation. Previous methods usually fine-tuned the entire networks for each…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Lingbo Liu , Jianlong Chang , Bruce X. B. Yu , Liang Lin , Qi Tian , Chang-Wen Chen

Existing state-of-the-art 3D point cloud understanding methods merely perform well in a fully supervised manner. To the best of our knowledge, there exists no unified framework that simultaneously solves the downstream high-level…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Kangcheng Liu

With the increasing reliance of self-driving and similar robotic systems on robust 3D vision, the processing of LiDAR scans with deep convolutional neural networks has become a trend in academia and industry alike. Prior attempts on the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-20 Ran Cheng , Christopher Agia , Yuan Ren , Xinhai Li , Liu Bingbing

Large visual-language models (VLMs), like CLIP, enable open-set image segmentation to segment arbitrary concepts from an image in a zero-shot manner. This goes beyond the traditional closed-set assumption, i.e., where models can only…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Francis Engelmann , Fabian Manhardt , Michael Niemeyer , Keisuke Tateno , Marc Pollefeys , Federico Tombari

Image segmentation is one of the major computer vision tasks, which is applicable in a variety of domains, such as autonomous navigation of an unmanned aerial vehicle. However, image segmentation cannot easily materialize on tiny embedded…

Neural and Evolutionary Computing · Computer Science 2024-05-06 Byungchul Chae , Jiae Kim , Seonyeong Heo

Recent advances in 3D datasets and multimodal models have greatly improved natural language 3D scene understanding. However, most 3D referring segmentation methods do not explicitly represent the observer viewpoint, making spatial relations…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Ayaka Nanri , Klara Reichard , Mert Kiray , Federico Tombari , Benjamin Busam , Asako Kanezaki