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Annotating 3D LiDAR point clouds for perception tasks is fundamental for many applications e.g., autonomous driving, yet it still remains notoriously labor-intensive. Pretraining-finetuning approach can alleviate the labeling burden by…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Xiangchao Yan , Runjian Chen , Bo Zhang , Hancheng Ye , Renqiu Xia , Jiakang Yuan , Hongbin Zhou , Xinyu Cai , Botian Shi , Wenqi Shao , Ping Luo , Yu Qiao , Tao Chen , Junchi Yan

Recently, transformer-based techniques incorporating superpoints have become prevalent in 3D instance segmentation. However, they often encounter an over-segmentation problem, especially noticeable with large objects. Additionally,…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Duc Dang Trung Tran , Byeongkeun Kang , Yeejin Lee

Outdoor LiDAR point cloud 3D instance segmentation is a crucial task in autonomous driving. However, it requires laborious human efforts to annotate the point cloud for training a segmentation model. To address this challenge, we propose a…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Guangfeng Jiang , Jun Liu , Yongxuan Lv , Yuzhi Wu , Xianfei Li , Wenlong Liao , Tao He , Pai Peng

In the recent years, the research community has witnessed growing use of 3D point cloud data for the high applicability in various real-world applications. By means of 3D point cloud, this modality enables to consider the actual size and…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Daichi Otsuka , Shinichi Mae , Ryosuke Yamada , Hirokatsu Kataoka

Despite a growing number of datasets being collected for training 3D object detection models, significant human effort is still required to annotate 3D boxes on LiDAR scans. To automate the annotation and facilitate the production of…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Chang Liu , Xiaoyan Qian , Binxiao Huang , Xiaojuan Qi , Edmund Lam , Siew-Chong Tan , Ngai Wong

Although LiDAR sensors are crucial for autonomous systems due to providing precise depth information, they struggle with capturing fine object details, especially at a distance, due to sparse and non-uniform data. Recent advances introduced…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Tiago Cortinhal , Idriss Gouigah , Eren Erdal Aksoy

Current instance segmentation methods rely heavily on pixel-level annotated images. The huge cost to obtain such fully-annotated images restricts the dataset scale and limits the performance. In this paper, we formally address…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Zhenyu Wang , Yali Li , Shengjin Wang

The goal of salient region detection is to identify the regions of an image that attract the most attention. Many methods have achieved state-of-the-art performance levels on this task. Recently, salient instance segmentation has become an…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Jialun Pei , He Tang , Chao Liu , Chuanbo Chen

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…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Guofeng Mei , Luigi Riz , Yiming Wang , Fabio Poiesi

Instance segmentation requires a large number of training samples to achieve satisfactory performance and benefits from proper data augmentation. To enlarge the training set and increase the diversity, previous methods have investigated…

计算机视觉与模式识别 · 计算机科学 2019-08-22 Hao-Shu Fang , Jianhua Sun , Runzhong Wang , Minghao Gou , Yong-Lu Li , Cewu Lu

Recent approaches for weakly supervised instance segmentations depend on two components: (i) a pseudo label generation model that provides instances which are consistent with a given annotation; and (ii) an instance segmentation model,…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Aditya Arun , C. V. Jawahar , M. Pawan Kumar

Previous top-performing methods for 3D instance segmentation often maintain inter-task dependencies and the tendency towards a lack of robustness. Besides, inevitable variations of different datasets make these methods become particularly…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Jiaheng Liu , Tong He , Honghui Yang , Rui Su , Jiayi Tian , Junran Wu , Hongcheng Guo , Ke Xu , Wanli Ouyang

In quantum machine field, detecting two-dimensional (2D) materials in Silicon chips is one of the most critical problems. Instance segmentation can be considered as a potential approach to solve this problem. However, similar to other deep…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Xuan Bac Nguyen , Apoorva Bisht , Ben Thompson , Hugh Churchill , Khoa Luu , Samee U. Khan

LiDAR-based 3D object detection and semantic segmentation are critical tasks in 3D scene understanding. Traditional detection and segmentation methods supervise their models through bounding box labels and semantic mask labels. However,…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Maoji Zheng , Ziyu Xu , Qiming Xia , Hai Wu , Chenglu Wen , Cheng Wang

Accurate semantic segmentation of terrestrial laser scanning (TLS) point clouds is limited by costly manual annotation. We propose a semi-automated, uncertainty-aware pipeline that integrates spherical projection, feature enrichment,…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Fei Zhang , Rob Chancia , Josie Clapp , Amirhossein Hassanzadeh , Dimah Dera , Richard MacKenzie , Jan van Aardt

Current 3D segmentation methods heavily rely on large-scale point-cloud datasets, which are notoriously laborious to annotate. Few attempts have been made to circumvent the need for dense per-point annotations. In this work, we look at…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Julian Chibane , Francis Engelmann , Tuan Anh Tran , Gerard Pons-Moll

In this paper, we propose a conceptually novel, efficient, and fully convolutional framework for real-time instance segmentation. Previously, most instance segmentation methods heavily rely on object detection and perform mask prediction…

计算机视觉与模式识别 · 计算机科学 2022-03-25 Tianheng Cheng , Xinggang Wang , Shaoyu Chen , Wenqiang Zhang , Qian Zhang , Chang Huang , Zhaoxiang Zhang , Wenyu Liu

The success of state-of-the-art deep neural networks heavily relies on the presence of large-scale labelled datasets, which are extremely expensive and time-consuming to annotate. This paper focuses on tackling semi-supervised part…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Yu Yang , Xiaotian Cheng , Hakan Bilen , Xiangyang Ji

The divergence between labeled training data and unlabeled testing data is a significant challenge for recent deep learning models. Unsupervised domain adaptation (UDA) attempts to solve such problem. Recent works show that self-training is…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Chuang Zhu , Kebin Liu , Wenqi Tang , Ke Mei , Jiaqi Zou , Tiejun Huang

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…

计算机视觉与模式识别 · 计算机科学 2017-04-13 Guanbin Li , Yuan Xie , Liang Lin , Yizhou Yu