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Monocular 3D object detection has achieved impressive performance on densely annotated datasets. However, it struggles when only a fraction of objects are labeled due to the high cost of 3D annotation. This sparsely annotated setting is…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Junyoung Jung , Seokwon Kim , Jung Uk Kim

Accurate 3D object detection is crucial to autonomous driving. Though LiDAR-based detectors have achieved impressive performance, the high cost of LiDAR sensors precludes their widespread adoption in affordable vehicles. Camera-based…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Yurong You , Cheng Perng Phoo , Carlos Andres Diaz-Ruiz , Katie Z Luo , Wei-Lun Chao , Mark Campbell , Bharath Hariharan , Kilian Q Weinberger

Monocular 3D Object Detection represents a challenging Computer Vision task due to the nature of the input used, which is a single 2D image, lacking in any depth cues and placing the depth estimation problem as an ill-posed one. Existing…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Diana-Alexandra Sas , Florin Oniga

We consider the task of estimating the 3D orientation of an object of known category given an image of the object and a bounding box around it. Recently, CNN-based regression and classification methods have shown significant performance…

计算机视觉与模式识别 · 计算机科学 2018-07-20 Siddharth Mahendran , Ming Yang Lu , Haider Ali , René Vidal

Semi-supervised 3D object detection from point cloud aims to train a detector with a small number of labeled data and a large number of unlabeled data. The core of existing methods lies in how to select high-quality pseudo-labels using the…

计算机视觉与模式识别 · 计算机科学 2023-12-19 ChuXin Wang , Wenfei Yang , Tianzhu Zhang

Improving the detection of distant 3d objects is an important yet challenging task. For camera-based 3D perception, the annotation of 3d bounding relies heavily on LiDAR for accurate depth information. As such, the distance of annotation is…

计算机视觉与模式识别 · 计算机科学 2024-03-15 Zetong Yang , Zhiding Yu , Chris Choy , Renhao Wang , Anima Anandkumar , Jose M. Alvarez

The main challenge of monocular 3D object detection is the accurate localization of 3D center. Motivated by a new and strong observation that this challenge can be remedied by a 3D-space local-grid search scheme in an ideal case, we propose…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Xianpeng Liu , Ce Zheng , Kelvin Cheng , Nan Xue , Guo-Jun Qi , Tianfu Wu

The status quo approach to training object detectors requires expensive bounding box annotations. Our framework takes a markedly different direction: we transfer tracked object boxes from weakly-labeled videos to weakly-labeled images to…

计算机视觉与模式识别 · 计算机科学 2016-04-21 Krishna Kumar Singh , Fanyi Xiao , Yong Jae Lee

Weakly-supervised object detection attempts to limit the amount of supervision by dispensing the need for bounding boxes, but still assumes image-level labels on the entire training set. In this work, we study the problem of training an…

计算机视觉与模式识别 · 计算机科学 2021-07-22 Zhaohui Yang , Miaojing Shi , Chao Xu , Vittorio Ferrari , Yannis Avrithis

Recent progress in 3D object detection from single images leverages monocular depth estimation as a way to produce 3D pointclouds, turning cameras into pseudo-lidar sensors. These two-stage detectors improve with the accuracy of the…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Dennis Park , Rares Ambrus , Vitor Guizilini , Jie Li , Adrien Gaidon

Monocular depth estimation has been actively studied in fields such as robot vision, autonomous driving, and 3D scene understanding. Given a sequence of color images, unsupervised learning methods based on the framework of…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Songlin Wei , Guodong Chen , Wenzheng Chi , Zhenhua Wang , Lining Sun

Training object detectors with only image-level annotations is very challenging because the target objects are often surrounded by a large number of background clutters. Many existing approaches tackle this problem through object proposal…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Wenhui Jiang , Thuyen Ngo , B. S. Manjunath , Zhicheng Zhao , Fei Su

A major element of depth perception and 3D understanding is the ability to predict the 3D layout of a scene and its contained objects for a novel pose. Indoor environments are particularly suitable for novel view prediction, since the set…

计算机视觉与模式识别 · 计算机科学 2018-08-13 Pulak Purkait , Ujwal Bonde , Christopher Zach

Estimating the 3D position and orientation of objects in the environment with a single RGB camera is a critical and challenging task for low-cost urban autonomous driving and mobile robots. Most of the existing algorithms are based on the…

计算机视觉与模式识别 · 计算机科学 2021-02-02 Yuxuan Liu , Yuan Yixuan , Ming Liu

We present a novel unsupervised learning framework for single view depth estimation using monocular videos. It is well known in 3D vision that enlarging the baseline can increase the depth estimation accuracy, and jointly optimizing a set…

计算机视觉与模式识别 · 计算机科学 2018-12-11 Lipu Zhou , Jiamin Ye , Montiel Abello , Shengze Wang , Michael Kaess

The detection of 3D objects through a single perspective camera is a challenging issue. The anchor-free and keypoint-based models receive increasing attention recently due to their effectiveness and simplicity. However, most of these…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Wei Chen , Jie Zhao , Wan-Lei Zhao , Song-Yuan Wu

Monocular 3D object detection is challenging due to the lack of accurate depth. However, existing depth-assisted solutions still exhibit inferior performance, whose reason is universally acknowledged as the unsatisfactory accuracy of…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Qiude Zhang , Chunyu Lin , Zhijie Shen , Nie Lang , Yao Zhao

Estimating 3D bounding boxes from monocular images is an essential component in autonomous driving, while accurate 3D object detection from this kind of data is very challenging. In this work, by intensive diagnosis experiments, we quantify…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Xinzhu Ma , Yinmin Zhang , Dan Xu , Dongzhan Zhou , Shuai Yi , Haojie Li , Wanli Ouyang

Monocular depth estimation can play an important role in addressing the issue of deriving scene geometry from 2D images. It has been used in a variety of industries, including robots, self-driving cars, scene comprehension, 3D…

计算机视觉与模式识别 · 计算机科学 2022-12-23 Ruilin Ma , Shiyao Chen , Qin Zhang

Monocular 3D Object Detection is an essential task for autonomous driving. Meanwhile, accurate 3D object detection from pure images is very challenging due to the loss of depth information. Most existing image-based methods infer objects'…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Kaixin Xiong , Dingyuan Zhang , Dingkang Liang , Zhe Liu , Hongcheng Yang , Wondimu Dikubab , Jianwei Cheng , Xiang Bai