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Pose estimation of the human body and hands is a fundamental problem in computer vision, and learning-based solutions require a large amount of annotated data. In this work, we improve the efficiency of the data annotation process for 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Qi Feng , Kun He , He Wen , Cem Keskin , Yuting Ye

Accurately annotating multiple 3D objects in LiDAR scenes is laborious and challenging. While a few previous studies have attempted to leverage semi-automatic methods for cost-effective bounding box annotation, such methods have limitations…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Dongmin Choi , Wonwoo Cho , Kangyeol Kim , Jaegul Choo

Three-dimensional facial stereophotogrammetry provides a detailed representation of craniofacial soft tissue without the use of ionizing radiation. While manual annotation of landmarks serves as the current gold standard for cephalometric…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Bo Berends , Freek Bielevelt , Ruud Schreurs , Shankeeth Vinayahalingam , Thomas Maal , Guido de Jong

Automated decision support can accelerate tedious tasks as users can focus their attention where it is needed most. However, a key concern is whether users overly trust or cede agency to automation. In this paper, we investigate the effects…

Human-Computer Interaction · Computer Science 2021-03-30 Ariel Levy , Monica Agrawal , Arvind Satyanarayan , David Sontag

3D semantic scene understanding tasks have achieved great success with the emergence of deep learning, but often require a huge amount of manually annotated training data. To alleviate the annotation cost, we propose the first…

Computer Vision and Pattern Recognition · Computer Science 2023-08-04 Shichao Dong , Guosheng Lin

While surface normals are widely used to analyse 3D scene geometry, surface normal estimation from LiDAR point clouds remains severely underexplored. This is caused by the lack of large-scale annotated datasets on the one hand, and lack of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Dušan Malić , Christian Fruhwirth-Reisinger , Samuel Schulter , Horst Possegger

Current 3D object detectors for autonomous driving are almost entirely trained on human-annotated data. Although of high quality, the generation of such data is laborious and costly, restricting them to a few specific locations and object…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Yurong You , Katie Z Luo , Cheng Perng Phoo , Wei-Lun Chao , Wen Sun , Bharath Hariharan , Mark Campbell , Kilian Q. Weinberger

Current deep learning paradigms largely benefit from the tremendous amount of annotated data. However, the quality of the annotations often varies among labelers. Multi-observer studies have been conducted to study these annotation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 Xiaosong Wang , Ziyue Xu , Dong Yang , Leo Tam , Holger Roth , Daguang Xu

Nanoparticles occur in various environments as a consequence of man-made processes, which raises concerns about their impact on the environment and human health. To allow for proper risk assessment, a precise and statistically relevant…

Given multiple datasets with different label spaces, the goal of this work is to train a single object detector predicting over the union of all the label spaces. The practical benefits of such an object detector are obvious and significant…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Xiangyun Zhao , Samuel Schulter , Gaurav Sharma , Yi-Hsuan Tsai , Manmohan Chandraker , Ying Wu

Generative world models have become essential data engines for autonomous driving, yet most existing efforts focus on videos or occupancy grids, overlooking the unique LiDAR properties. Extending LiDAR generation to dynamic 4D world…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Ao Liang , Youquan Liu , Yu Yang , Dongyue Lu , Linfeng Li , Lingdong Kong , Huaici Zhao , Wei Tsang Ooi

Automatic medical image segmentation plays a critical role in scientific research and medical care. Existing high-performance deep learning methods typically rely on large training datasets with high-quality manual annotations, which are…

Image and Video Processing · Electrical Eng. & Systems 2021-11-17 Shanshan Wang , Cheng Li , Rongpin Wang , Zaiyi Liu , Meiyun Wang , Hongna Tan , Yaping Wu , Xinfeng Liu , Hui Sun , Rui Yang , Xin Liu , Jie Chen , Huihui Zhou , Ismail Ben Ayed , Hairong Zheng

Annotated images are required for both supervised model training and evaluation in image classification. Manually annotating images is arduous and expensive, especially for multi-labeled images. A recent trend for conducting such laboursome…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Jianzhe Lin , Tianze Yu , Z. Jane Wang

The human annotations are imperfect, especially when produced by junior practitioners. Multi-expert consensus is usually regarded as golden standard, while this annotation protocol is too expensive to implement in many real-world projects.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Jiancheng Yang , Rui Shi , Udaranga Wickramasinghe , Qikui Zhu , Bingbing Ni , Pascal Fua

End-to-end differentiable learning for autonomous driving (AD) has recently become a prominent paradigm. One main bottleneck lies in its voracious appetite for high-quality labeled data e.g. 3D bounding boxes and semantic segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Han Lu , Xiaosong Jia , Yichen Xie , Wenlong Liao , Xiaokang Yang , Junchi Yan

Many existing methods for 3D cuboid annotation of vehicles rely on expensive and carefully calibrated camera-LiDAR or stereo setups, limiting their accessibility for large-scale data collection. We introduce ToosiCubix, a simple yet…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Behrooz Nasihatkon , Hossein Resani , Amirreza Mehrzadian

Supervised classification algorithms are used to solve a growing number of real-life problems around the globe. Their performance is strictly connected with the quality of labels used in training. Unfortunately, acquiring good-quality…

Machine Learning · Computer Science 2024-07-08 Daniel Kałuża , Andrzej Janusz , Dominik Ślęzak

The success of deep learning in computer vision is based on availability of large annotated datasets. To lower the need for hand labeled images, virtually rendered 3D worlds have recently gained popularity. Creating realistic 3D content is…

Computer Vision and Pattern Recognition · Computer Science 2017-08-07 Hassan Abu Alhaija , Siva Karthik Mustikovela , Lars Mescheder , Andreas Geiger , Carsten Rother

Recent years have witnessed the rapid progress of perception algorithms on top of LiDAR, a widely adopted sensor for autonomous driving systems. These LiDAR-based solutions are typically data hungry, requiring a large amount of data to be…

Robotics · Computer Science 2020-11-23 Tai Wang , Conghui He , Zhe Wang , Jianping Shi , Dahua Lin

Mobile robots and autonomous vehicles rely on multi-modal sensor setups to perceive and understand their surroundings. Aside from cameras, LiDAR sensors represent a central component of state-of-the-art perception systems. In addition to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-27 Florian Piewak , Peter Pinggera , Manuel Schäfer , David Peter , Beate Schwarz , Nick Schneider , David Pfeiffer , Markus Enzweiler , Marius Zöllner