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Most existing crowd counting methods require object location-level annotation, i.e., placing a dot at the center of an object. While being simpler than the bounding-box or pixel-level annotation, obtaining this annotation is still…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Yinjie Lei , Yan Liu , Pingping Zhang , Lingqiao Liu

In recent years, computer vision has transformed fields such as medical imaging, object recognition, and geospatial analytics. One of the fundamental tasks in computer vision is semantic image segmentation, which is vital for precise object…

计算机视觉与模式识别 · 计算机科学 2023-11-09 Dinar Sharafutdinov , Stanislav Kuskov , Saian Protasov , Alexey Voropaev

Weakly-supervised action localization aims to recognize and localize action instancese in untrimmed videos with only video-level labels. Most existing models rely on multiple instance learning(MIL), where the predictions of unlabeled…

计算机视觉与模式识别 · 计算机科学 2023-09-27 Guiqin Wang , Peng Zhao , Cong Zhao , Shusen Yang , Jie Cheng , Luziwei Leng , Jianxing Liao , Qinghai Guo

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…

计算机视觉与模式识别 · 计算机科学 2023-08-04 Shichao Dong , Guosheng Lin

Driving is challenging in conditions like night, rain, and snow. Lack of good labeled datasets has hampered progress in scene understanding under such conditions. Unsupervised Domain Adaptation (UDA) using large labeled clear-day datasets…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Shen Zheng , Anurag Ghosh , Srinivasa G. Narasimhan

Change detection from traditional \added{2D} optical images has limited capability to model the changes in the height or shape of objects. Change detection using 3D point cloud \added{from photogrammetry or LiDAR surveying} can fill this…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Iris de Gélis , Sudipan Saha , Muhammad Shahzad , Thomas Corpetti , Sébastien Lefèvre , Xiao Xiang Zhu

Predicting the future motion of surrounding agents is essential for autonomous vehicles (AVs) to operate safely in dynamic, human-robot-mixed environments. However, the scarcity of large-scale driving datasets has hindered the development…

计算机视觉与模式识别 · 计算机科学 2025-02-28 Yang Zhou , Hao Shao , Letian Wang , Steven L. Waslander , Hongsheng Li , Yu Liu

Weakly supervised LiDAR semantic segmentation has made significant strides with limited labeled data. However, most existing methods focus on the network training under weak supervision, while efficient annotation strategies remain largely…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Yilong Chen , Zongyi Xu , xiaoshui Huang , Ruicheng Zhang , Xinqi Jiang , Xinbo Gao

State-of-the-art lidar-based 3D object detection methods rely on supervised learning and large labeled datasets. However, annotating lidar data is resource-consuming, and depending only on supervised learning limits the applicability of…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Ekim Yurtsever , Emeç Erçelik , Mingyu Liu , Zhijie Yang , Hanzhen Zhang , Pınar Topçam , Maximilian Listl , Yılmaz Kaan Çaylı , Alois Knoll

Modern deep learning models require large amounts of accurately annotated data, which is often difficult to satisfy. Hence, weakly supervised tasks, including weakly supervised object localization~(WSOL) and detection~(WSOD), have recently…

计算机视觉与模式识别 · 计算机科学 2021-08-05 Chen-Lin Zhang , Yin Li , Jianxin Wu

Self-supervised prediction is a powerful mechanism to learn representations that capture the underlying structure of the data. Despite recent progress, the self-supervised video prediction task is still challenging. One of the critical…

计算机视觉与模式识别 · 计算机科学 2020-04-21 Hafez Farazi , Sven Behnke

Different from general object detection, moving infrared small target detection faces huge challenges due to tiny target size and weak background contrast.Currently, most existing methods are fully-supervised, heavily relying on a large…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Weiwei Duan , Luping Ji , Shengjia Chen , Sicheng Zhu , Jianghong Huang , Mao Ye

Diagnostic and intervention methodologies for skill assessment of autism typically requires a clinician repetitively initiating several stimuli and recording the child's response. In this paper, we propose to automate the response…

计算机视觉与模式识别 · 计算机科学 2020-01-30 Prashant Pandey , Prathosh AP , Manu Kohli , Josh Pritchard

Reliance on vast annotations to achieve leading performance severely restricts the practicality of large-scale point cloud semantic segmentation. For the purpose of reducing data annotation costs, effective labeling schemes are developed…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Puzuo Wang , Wei Yao , Jie Shao

Learning robust contextual knowledge from unlabeled videos is essential for advancing self-supervised tracking. However, conventional self-supervised trackers lack effective context modeling, while existing context association methods based…

计算机视觉与模式识别 · 计算机科学 2026-05-08 Yaozong Zheng , Qihua Liang , Bineng Zhong , Shuimu Zeng , Yuanliang Xue , Ning Li , Shuxiang Song

Weakly-supervised action segmentation is a task of learning to partition a long video into several action segments, where training videos are only accompanied by transcripts (ordered list of actions). Most of existing methods need to infer…

计算机视觉与模式识别 · 计算机科学 2024-03-29 Angchi Xu , Wei-Shi Zheng

In one-class-learning tasks, only the normal case (foreground) can be modeled with data, whereas the variation of all possible anomalies is too erratic to be described by samples. Thus, due to the lack of representative data, the…

计算机视觉与模式识别 · 计算机科学 2019-06-03 Duc Tam Nguyen , Zhongyu Lou , Michael Klar , Thomas Brox

Temporal Activity Detection aims to predict activity classes per frame, in contrast to video-level predictions in Activity Classification (i.e., Activity Recognition). Due to the expensive frame-level annotations required for detection, the…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Kumara Kahatapitiya , Zhou Ren , Haoxiang Li , Zhenyu Wu , Michael S. Ryoo , Gang Hua

One major challenge for monocular 3D human pose estimation in-the-wild is the acquisition of training data that contains unconstrained images annotated with accurate 3D poses. In this paper, we address this challenge by proposing a…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Umar Iqbal , Pavlo Molchanov , Jan Kautz

Understanding human motion is crucial for accurate pedestrian trajectory prediction. Conventional methods typically rely on supervised learning, where ground-truth labels are directly optimized against predicted trajectories. This amplifies…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Yizhou Huang , Yihua Cheng , Kezhi Wang