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Data augmentation is an important technique to improve data efficiency and save labeling cost for 3D detection in point clouds. Yet, existing augmentation policies have so far been designed to only utilize labeled data, which limits the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Zhaoqi Leng , Shuyang Cheng , Benjamin Caine , Weiyue Wang , Xiao Zhang , Jonathon Shlens , Mingxing Tan , Dragomir Anguelov

Unsupervised 3D object detection aims to identify objects of interest from unlabeled raw data, such as LiDAR points. Recent approaches usually adopt pseudo 3D bounding boxes (3D bboxes) from clustering algorithm to initialize the model…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Ruiyang Zhang , Hu Zhang , Hang Yu , Zhedong Zheng

Unsupervised 3D object detection methods have emerged to leverage vast amounts of data without requiring manual labels for training. Recent approaches rely on dynamic objects for learning to detect mobile objects but penalize the detections…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Ted Lentsch , Holger Caesar , Dariu M. Gavrila

Semi-supervised learning (SSL) can reduce the need for large labelled datasets by incorporating unlabelled data into the training. This is particularly interesting for semantic segmentation, where labelling data is very costly and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Sebastian Scherer , Robin Schön , Rainer Lienhart

Unsupervised Camoflaged Object Detection (UCOD) has gained attention since it doesn't need to rely on extensive pixel-level labels. Existing UCOD methods typically generate pseudo-labels using fixed strategies and train 1 x1 convolutional…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Weiqi Yan , Lvhai Chen , Huaijia Kou , Shengchuan Zhang , Yan Zhang , Liujuan Cao

Semi-supervised Camouflaged Object Detection (SSCOD) aims to reduce reliance on costly pixel-level annotations by leveraging limited annotated data and abundant unlabeled data. However, existing SSCOD methods based on Teacher-Student…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Xihang Hu , Fuming Sun , Jiazhe Liu , Feilong Xu , Xiaoli Zhang

The unsupervised pretraining of object detectors has recently become a key component of object detector training, as it leads to improved performance and faster convergence during the supervised fine-tuning stage. Existing unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Ioannis Maniadis Metaxas , Adrian Bulat , Ioannis Patras , Brais Martinez , Georgios Tzimiropoulos

In the fast-evolving field of artificial intelligence, where models are increasingly growing in complexity and size, the availability of labeled data for training deep learning models has become a significant challenge. Addressing complex…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 Santiago C. Vilabella , Pablo Pérez-Núñez , Beatriz Remeseiro

Remote sensing data has been widely used for various Earth Observation (EO) missions such as land use and cover classification, weather forecasting, agricultural management, and environmental monitoring. Most existing remote sensing…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Xin Zhang , Liangxiu Han

Continual learning aims to learn new tasks incrementally using less computation and memory resources instead of retraining the model from scratch whenever new task arrives. However, existing approaches are designed in supervised fashion…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Jiangpeng He , Fengqing Zhu

Object detection in streaming images is a major step in different detection-based applications, such as object tracking, action recognition, robot navigation, and visual surveillance applications. In mostcases, image quality is noisy and…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Dong Kyun Shin , Minhaz Uddin Ahmed , Phill Kyu Rhee

Semi-supervised learning (SSL) offers a robust framework for harnessing the potential of unannotated data. Traditionally, SSL mandates that all classes possess labeled instances. However, the emergence of open-world SSL (OwSSL) introduces a…

Machine Learning · Computer Science 2024-11-05 Shengjie Niu , Lifan Lin , Jian Huang , Chao Wang

Supervised learning demands large amounts of precisely annotated data to achieve promising results. Such data curation is labor-intensive and imposes significant overhead regarding time and costs. Self-supervised learning (SSL) partially…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Thangarajah Akilan , Nusrat Jahan , Wandong Zhang

Simulation data can be accurately labeled and have been expected to improve the performance of data-driven algorithms, including object detection. However, due to the various domain inconsistencies from simulation to reality…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Meiying Zhang , Weiyuan Peng , Guangyao Ding , Chenyang Lei , Chunlin Ji , Qi Hao

In this paper, we propose to learn an Unsupervised Single Object Tracker (USOT) from scratch. We identify that three major challenges, i.e., moving object discovery, rich temporal variation exploitation, and online update, are the central…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Jilai Zheng , Chao Ma , Houwen Peng , Xiaokang Yang

Semi-supervised object detection (SSOD) based on pseudo-labeling significantly reduces dependence on large labeled datasets by effectively leveraging both labeled and unlabeled data. However, real-world applications of SSOD often face…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Moussa Kassem Sbeyti , Nadja Klein , Azarm Nowzad , Fikret Sivrikaya , Sahin Albayrak

Semantic segmentation of various tissue and nuclei types in histology images is fundamental to many downstream tasks in the area of computational pathology (CPath). In recent years, Deep Learning (DL) methods have been shown to perform well…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Raja Muhammad Saad Bashir , Talha Qaiser , Shan E Ahmed Raza , Nasir M. Rajpoot

Semi-supervised learning (SSL) aims to improve performance by exploiting unlabeled data when labels are scarce. Conventional SSL studies typically assume close environments where important factors (e.g., label, feature, distribution)…

Machine Learning · Computer Science 2024-12-25 Lan-Zhe Guo , Lin-Han Jia , Jie-Jing Shao , Yu-Feng Li

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,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Maoji Zheng , Ziyu Xu , Qiming Xia , Hai Wu , Chenglu Wen , Cheng Wang

Training neural networks to perform 3D object detection for autonomous driving requires a large amount of diverse annotated data. However, obtaining training data with sufficient quality and quantity is expensive and sometimes impossible…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Tamas Matuszka , Daniel Kozma