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Semi-supervised 3D object detection, aiming to explore unlabeled data for boosting 3D object detectors, has emerged as an active research area in recent years. Some previous methods have shown substantial improvements by either employing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Jingyu Li , Xiaolong Zhao , Zhe Liu , Wenxiao Wu , Li Zhang

Being inspired by child's learning experience - taught first and followed by observation and questioning, we investigate a critically supervised learning methodology for object detection in this work. Specifically, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2017-11-06 Chi-Hao Wu , Qin Huang , Siyang Li , C. -C. Jay Kuo

This study delves into semi-supervised object detection (SSOD) to improve detector performance with additional unlabeled data. State-of-the-art SSOD performance has been achieved recently by self-training, in which training supervision…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Fangyuan Zhang , Tianxiang Pan , Bin Wang

Finding dense semantic correspondence is a fundamental problem in computer vision, which remains challenging in complex scenes due to background clutter, extreme intra-class variation, and a severe lack of ground truth. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-08-18 Shuaiyi Huang , Luyu Yang , Bo He , Songyang Zhang , Xuming He , Abhinav Shrivastava

Deep learning for detecting objects in remotely sensed imagery can enable new technologies for important applications including mitigating climate change. However, these models often require large datasets labeled with bounding box…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Ji Hun Wang , Jeremy Irvin , Beri Kohen Behar , Ha Tran , Raghav Samavedam , Quentin Hsu , Andrew Y. Ng

Current collaborative perception methods often rely on fully annotated datasets, which can be expensive to obtain in practical situations. To reduce annotation costs, some works adopt sparsely supervised learning techniques and generate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Yushan Han , Hui Zhang , Honglei Zhang , Jing Wang , Yidong Li

Efficient and reliable methods for training of object detectors are in higher demand than ever, and more and more data relevant to the field is becoming available. However, large datasets like Open Images Dataset v4 (OID) are sparsely…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Yusuke Niitani , Takuya Akiba , Tommi Kerola , Toru Ogawa , Shotaro Sano , Shuji Suzuki

Semantic segmentation based on sparse annotation has advanced in recent years. It labels only part of each object in the image, leaving the remainder unlabeled. Most of the existing approaches are time-consuming and often necessitate a…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Hui Su , Yue Ye , Wei Hua , Lechao Cheng , Mingli Song

Supervised training of object detectors requires well-annotated large-scale datasets, whose production is costly. Therefore, some efforts have been made to obtain annotations in economical ways, such as cloud sourcing. However, datasets…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Jiafeng Mao , Qing Yu , Yoko Yamakata , Kiyoharu Aizawa

Semi-supervised 3D object detection can benefit from the promising pseudo-labeling technique when labeled data is limited. However, recent approaches have overlooked the impact of noisy pseudo-labels during training, despite efforts to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Farzad Nozarian , Shashank Agarwal , Farzaneh Rezaeianaran , Danish Shahzad , Atanas Poibrenski , Christian Müller , Philipp Slusallek

This paper focuses on long-tailed object detection in the semi-supervised learning setting, which poses realistic challenges, but has rarely been studied in the literature. We propose a novel pseudo-labeling-based detector called…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Yuhang Zang , Kaiyang Zhou , Chen Huang , Chen Change Loy

For further progress in video object segmentation (VOS), larger, more diverse, and more challenging datasets will be necessary. However, densely labeling every frame with pixel masks does not scale to large datasets. We use a deep…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Paul Voigtlaender , Lishu Luo , Chun Yuan , Yong Jiang , Bastian Leibe

This paper focuses on Semi-Supervised Object Detection (SSOD). Knowledge Distillation (KD) has been widely used for semi-supervised image classification. However, adapting these methods for SSOD has the following obstacles. (1) The teacher…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Cong Chen , Shouyang Dong , Ye Tian , Kunlin Cao , Li Liu , Yuanhao Guo

One of the most important factors in training object recognition networks using convolutional neural networks (CNNs) is the provision of annotated data accompanying human judgment. Particularly, in object detection or semantic segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2018-02-21 Min-Kook Choi , Jaehyeong Park , Jihun Jung , Heechul Jung , Jin-Hee Lee , Woong Jae Won , Woo Young Jung , Jincheol Kim , Soon Kwon

Training high-accuracy 3D detectors necessitates massive labeled 3D annotations with 7 degree-of-freedom, which is laborious and time-consuming. Therefore, the form of point annotations is proposed to offer significant prospects for…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Hongzhi Gao , Zheng Chen , Zehui Chen , Lin Chen , Jiaming Liu , Shanghang Zhang , Feng Zhao

We tackle the challenging problem of Open-Set Object Detection (OSOD), which aims to detect both known and unknown objects in unlabelled images. The main difficulty arises from the absence of supervision for these unknown classes, making it…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Silin Cheng , Yuanpei Liu , Kai Han

Despite the availability of large datasets for tasks like image classification and image-text alignment, labeled data for more complex recognition tasks, such as detection and segmentation, is less abundant. In particular, for instance…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 François Porcher , Camille Couprie , Marc Szafraniec , Jakob Verbeek

Fully supervised salient object detection (SOD) methods have made considerable progress in performance, yet these models rely heavily on expensive pixel-wise labels. Recently, to achieve a trade-off between labeling burden and performance,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Binwei Xu , Haoran Liang , Weihua Gong , Ronghua Liang , Peng Chen

Accurate segmentation of organelle instances from electron microscopy (EM) images plays an essential role in many neuroscience researches. However, practical scenarios usually suffer from high annotation costs, label scarcity, and large…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Dafei Qiu , Shan Xiong , Jiajin Yi , Jialin Peng

Various strategies for label-scarce object detection have been explored by the computer vision research community. These strategies mainly rely on assumptions that are specific to natural images and not directly applicable to the biological…