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Although considerable advancements have been attained in self-supervised depth estimation from monocular videos, most existing methods often treat all objects in a video as static entities, which however violates the dynamic nature of…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Xiuzhe Wu , Xiaoyang Lyu , Qihao Huang , Yong Liu , Yang Wu , Ying Shan , Xiaojuan Qi

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,…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Maoji Zheng , Ziyu Xu , Qiming Xia , Hai Wu , Chenglu Wen , Cheng Wang

Monocular 3D object detection is a low-cost but challenging task, as it requires generating accurate 3D localization solely from a single image input. Recent developed depth-assisted methods show promising results by using explicit depth…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Zizhang Wu , Yunzhe Wu , Jian Pu , Xianzhi Li , Xiaoquan Wang

Monocular 3D detection has drawn much attention from the community due to its low cost and setup simplicity. It takes an RGB image as input and predicts 3D boxes in the 3D space. The most challenging sub-task lies in the instance depth…

计算机视觉与模式识别 · 计算机科学 2022-07-25 Liang Peng , Xiaopei Wu , Zheng Yang , Haifeng Liu , Deng Cai

The emerging trend in computer vision emphasizes developing universal models capable of simultaneously addressing multiple diverse tasks. Such universality typically requires joint training across multi-domain datasets to ensure effective…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Eunsoo Im , Changhyun Jee , Jung Kwon Lee

The ability to interpret and comprehend a 3D scene is essential for many vision and robotics systems. In numerous applications, this involves 3D object detection, i.e.~identifying the location and dimensions of objects belonging to a…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Olivier Moliner , Viktor Larsson , Kalle Åström

Learning an object detector or retrieval requires a large data set with manual annotations. Such data sets are expensive and time consuming to create and therefore difficult to obtain on a large scale. In this work, we propose to exploit…

计算机视觉与模式识别 · 计算机科学 2019-10-22 Elad Amrani , Rami Ben-Ari , Tal Hakim , Alex Bronstein

Accurate 3D object detection in LiDAR point clouds is crucial for autonomous driving systems. To achieve state-of-the-art performance, the supervised training of detectors requires large amounts of human-annotated data, which is expensive…

计算机视觉与模式识别 · 计算机科学 2024-08-08 Christian Fruhwirth-Reisinger , Wei Lin , Dušan Malić , Horst Bischof , Horst Possegger

The cost of drawing object bounding boxes (i.e. labeling) for millions of images is prohibitively high. For instance, labeling pedestrians in a regular urban image could take 35 seconds on average. Active learning aims to reduce the cost of…

计算机视觉与模式识别 · 计算机科学 2019-11-22 Hamed H. Aghdam , Abel Gonzalez-Garcia , Joost van de Weijer , Antonio M. López

Due to the inherent ill-posed nature of 2D-3D projection, monocular 3D object detection lacks accurate depth recovery ability. Although the deep neural network (DNN) enables monocular depth-sensing from high-level learned features, the…

计算机视觉与模式识别 · 计算机科学 2022-03-17 Qing Lian , Peiliang Li , Xiaozhi Chen

Training object class detectors typically requires a large set of images in which objects are annotated by bounding-boxes. However, manually drawing bounding-boxes is very time consuming. We propose a new scheme for training object…

计算机视觉与模式识别 · 计算机科学 2017-04-25 Dim P. Papadopoulos , Jasper R. R. Uijlings , Frank Keller , Vittorio Ferrari

Monocular 3D object detection (Mono3D) in mobile settings (e.g., on a vehicle, a drone, or a robot) is an important yet challenging task. Due to the near-far disparity phenomenon of monocular vision and the ever-changing camera pose, it is…

计算机视觉与模式识别 · 计算机科学 2023-03-27 Yunsong Zhou , Quan Liu , Hongzi Zhu , Yunzhe Li , Shan Chang , Minyi Guo

This paper shows that it is possible to learn models for monocular 3D reconstruction of articulated objects (e.g., horses, cows, sheep), using as few as 50-150 images labeled with 2D keypoints. Our proposed approach involves training…

计算机视觉与模式识别 · 计算机科学 2023-04-28 Anastasis Stathopoulos , Georgios Pavlakos , Ligong Han , Dimitris Metaxas

This paper discusses current methods and trends for 3D bounding box detection in volumetric medical image data. For this purpose, an overview of relevant papers from recent years is given. 2D and 3D implementations are discussed and…

图像与视频处理 · 电气工程与系统科学 2021-05-18 Daria Kern , Andre Mastmeyer

LiDAR point clouds can effectively depict the motion and posture of objects in three-dimensional space. Many studies accomplish the 3D object detection by voxelizing point clouds. However, in autonomous driving scenarios, the sparsity and…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Yongxin Shao , Aihong Tan , Binrui Wang , Tianhong Yan , Zhetao Sun , Yiyang Zhang , Jiaxin Liu

To alleviate the cost of obtaining accurate bounding boxes for training today's state-of-the-art object detection models, recent weakly supervised detection work has proposed techniques to learn from image-level labels. However, requiring…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Keren Ye , Mingda Zhang , Wei Li , Danfeng Qin , Adriana Kovashka , Jesse Berent

Wide-range and fine-grained vehicle detection plays a critical role in enabling active safety features in intelligent driving systems. However, existing vehicle detection methods based on rectangular bounding boxes (BBox) often struggle…

计算机视觉与模式识别 · 计算机科学 2023-09-18 Zhupeng Ye , Yinqi Li , Zejian Yuan

A crucial task in scene understanding is 3D object detection, which aims to detect and localize the 3D bounding boxes of objects belonging to specific classes. Existing 3D object detectors heavily rely on annotated 3D bounding boxes during…

计算机视觉与模式识别 · 计算机科学 2020-07-29 Zengyi Qin , Jinglu Wang , Yan Lu

Self-driving cars must detect other vehicles and pedestrians in 3D to plan safe routes and avoid collisions. State-of-the-art 3D object detectors, based on deep learning, have shown promising accuracy but are prone to over-fit to domain…

计算机视觉与模式识别 · 计算机科学 2022-07-12 Yurong You , Carlos Andres Diaz-Ruiz , Yan Wang , Wei-Lun Chao , Bharath Hariharan , Mark Campbell , Kilian Q Weinberger

We present a novel approach for unsupervised learning of depth and ego-motion from monocular video. Unsupervised learning removes the need for separate supervisory signals (depth or ego-motion ground truth, or multi-view video). Prior work…

计算机视觉与模式识别 · 计算机科学 2018-06-12 Reza Mahjourian , Martin Wicke , Anelia Angelova