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Unsupervised Anomaly Detection (UAD) is a key data mining problem owing to its wide real-world applications. Due to the complete absence of supervision signals, UAD methods rely on implicit assumptions about anomalous patterns (e.g.,…

机器学习 · 计算机科学 2023-12-27 Hangting Ye , Zhining Liu , Xinyi Shen , Wei Cao , Shun Zheng , Xiaofan Gui , Huishuai Zhang , Yi Chang , Jiang Bian

Image-based 3D detection is an indispensable component of the perception system for autonomous driving. However, it still suffers from the unsatisfying performance, one of the main reasons for which is the limited training data.…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Xinzhu Ma , Yuan Meng , Yinmin Zhang , Lei Bai , Jun Hou , Shuai Yi , Wanli Ouyang

Despite advances in generic object detection, there remains a performance gap in detecting small objects compared to normal-scale objects. We reveal that conventional object localization methods suffer from gradient instability in small…

计算机视觉与模式识别 · 计算机科学 2025-07-11 Huixin Sun , Yanjing Li , Linlin Yang , Xianbin Cao , Baochang Zhang

For semi-supervised learning with imbalance classes, the long-tailed distribution of data will increase the model prediction bias toward dominant classes, undermining performance on less frequent classes. Existing methods also face…

计算机视觉与模式识别 · 计算机科学 2024-01-10 Kuo Yang , Duo Li , Menghan Hu , Guangtao Zhai , Xiaokang Yang , Xiao-Ping Zhang

Monocular 3D object detection is a fundamental yet challenging task in 3D scene understanding. Existing approaches heavily depend on supervised learning with extensive 3D annotations, which are often acquired from LiDAR point clouds through…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Zihua Liu , Hiroki Sakuma , Masatoshi Okutomi

Unsupervised salient object detection aims to detect salient objects without using supervision signals eliminating the tedious task of manually labeling salient objects. To improve training efficiency, end-to-end methods for USOD have been…

计算机视觉与模式识别 · 计算机科学 2023-10-17 Yicheng Song , Shuyong Gao , Haozhe Xing , Yiting Cheng , Yan Wang , Wenqiang Zhang

3D object detection is an essential task in autonomous driving and robotics. Though great progress has been made, challenges remain in estimating 3D pose for distant and occluded objects. In this paper, we present a novel framework named…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Zhenbo Xu , Wei Zhang , Xiaoqing Ye , Xiao Tan , Wei Yang , Shilei Wen , Errui Ding , Ajin Meng , Liusheng Huang

Transformer-based methods have demonstrated superior performance for monocular 3D object detection recently, which aims at predicting 3D attributes from a single 2D image. Most existing transformer-based methods leverage both visual and…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Xuan He , Fan Yang , Kailun Yang , Jiacheng Lin , Haolong Fu , Meng Wang , Jin Yuan , Zhiyong Li

Detecting objects from UAV-captured images is challenging due to the small object size. In this work, a simple and efficient adaptive zoom-in framework is explored for object detection on UAV images. The main motivation is that the…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Tao Wang , Chenyu Lin , Chenwei Tang , Jizhe Zhou , Deng Xiong , Jianan Li , Jian Zhao , Jiancheng Lv

In this work, we present a novel and effective framework to facilitate object detection with the instance-level segmentation information that is only supervised by bounding box annotation. Starting from the joint object detection and…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Xiangyun Zhao , Shuang Liang , Yichen Wei

Monocular 3D object detection is an essential task in computer vision, and it has several applications in robotics and virtual reality. However, 3D object detectors are typically trained in a fully supervised way, relying extensively on 3D…

计算机视觉与模式识别 · 计算机科学 2025-04-21 Andreas Lau Hansen , Lukas Wanzeck , Dim P. Papadopoulos

3D object detection aims to predict object centers, dimensions, and rotations from LiDAR point clouds. Despite its simplicity, LiDAR captures only the near side of objects, making center-based detectors prone to poor localization accuracy…

计算机视觉与模式识别 · 计算机科学 2025-04-04 Ruixiao Zhang , Runwei Guan , Xiangyu Chen , Adam Prugel-Bennett , Xiaohao Cai

We study adapting trained object detectors to unseen domains manifesting significant variations of object appearance, viewpoints and backgrounds. Most current methods align domains by either using image or instance-level feature alignment…

计算机视觉与模式识别 · 计算机科学 2021-10-04 Muhammad Akhtar Munir , Muhammad Haris Khan , M. Saquib Sarfraz , Mohsen Ali

Some perspectives naturally provide more information than others. How can an AI system determine which viewpoint offers the most valuable insight for accurate and efficient 3D object reconstruction? Active view selection (AVS) for 3D…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Zhengquan Zhang , Feng Xu , Mengmi Zhang

Monocular 3D object detection aims to localize 3D bounding boxes in an input single 2D image. It is a highly challenging problem and remains open, especially when no extra information (e.g., depth, lidar and/or multi-frames) can be…

计算机视觉与模式识别 · 计算机科学 2021-12-10 Xianpeng Liu , Nan Xue , Tianfu Wu

Point clouds captured by scanning sensors are often perturbed by noise, which have a highly negative impact on downstream tasks (e.g. surface reconstruction and shape understanding). Previous works mostly focus on training neural networks…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Junsheng Zhou , Xingyu Shi , Haichuan Song , Yi Fang , Yu-Shen Liu , Zhizhong Han

We present an unsupervised framework for simultaneous appearance-based object discovery, detection, tracking and reconstruction using RGBD cameras and a robot manipulator. The system performs dense 3D simultaneous localization and mapping…

机器人学 · 计算机科学 2014-11-05 Lu Ma , Mahsa Ghafarianzadeh , Dave Coleman , Nikolaus Correll , Gabe Sibley

Monocular 3D object detection task aims to predict the 3D bounding boxes of objects based on monocular RGB images. Since the location recovery in 3D space is quite difficult on account of absence of depth information, this paper proposes a…

计算机视觉与模式识别 · 计算机科学 2021-06-10 Yingjie Cai , Buyu Li , Zeyu Jiao , Hongsheng Li , Xingyu Zeng , Xiaogang Wang

Reliable perception is fundamental for safety critical decision making in autonomous driving. Yet, vision based object detector neural networks remain vulnerable to uncertainty arising from issues such as data bias and distributional…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Nishad Sahu , Shounak Sural , Aditya Satish Patil , Ragunathan , Rajkumar

3D point cloud understanding has made great progress in recent years. However, one major bottleneck is the scarcity of annotated real datasets, especially compared to 2D object detection tasks, since a large amount of labor is involved in…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Yongming Rao , Benlin Liu , Yi Wei , Jiwen Lu , Cho-Jui Hsieh , Jie Zhou