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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…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Xianpeng Liu , Nan Xue , Tianfu Wu

Recognizing and localizing objects in the 3D space is a crucial ability for an AI agent to perceive its surrounding environment. While significant progress has been achieved with expensive LiDAR point clouds, it poses a great challenge for…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Li Wang , Li Zhang , Yi Zhu , Zhi Zhang , Tong He , Mu Li , Xiangyang Xue

Monocular 3D object detection has attracted great attention for its advantages in simplicity and cost. Due to the ill-posed 2D to 3D mapping essence from the monocular imaging process, monocular 3D object detection suffers from inaccurate…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Zequn Qin , Xi Li

Scale-aware monocular depth estimation poses a significant challenge in computer-aided endoscopic navigation. However, existing depth estimation methods that do not consider the geometric priors struggle to learn the absolute scale from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Ruofeng Wei , Bin Li , Kai Chen , Yiyao Ma , Yunhui Liu , Qi Dou

While expensive LiDAR and stereo camera rigs have enabled the development of successful 3D object detection methods, monocular RGB-only approaches lag much behind. This work advances the state of the art by introducing MoVi-3D, a novel,…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Andrea Simonelli , Samuel Rota Bulò , Lorenzo Porzi , Elisa Ricci , Peter Kontschieder

Detecting and localizing glass in 3D environments poses significant challenges for visual perception systems, as the optical properties of glass often hinder conventional sensors from accurately distinguishing glass surfaces. The lack of…

Robotics · Computer Science 2025-09-09 Kai Zhang , Guoyang Zhao , Jianxing Shi , Bonan Liu , Weiqing Qi , Jun Ma

In this paper we propose a novel 3D single-shot object detection method for detecting vehicles in monocular RGB images. Our approach lifts 2D detections to 3D space by predicting additional regression and classification parameters and hence…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Nils Gählert , Jun-Jun Wan , Nicolas Jourdan , Jan Finkbeiner , Uwe Franke , Joachim Denzler

We present a method for jointly training the estimation of depth, ego-motion, and a dense 3D translation field of objects relative to the scene, with monocular photometric consistency being the sole source of supervision. We show that this…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Hanhan Li , Ariel Gordon , Hang Zhao , Vincent Casser , Anelia Angelova

In this work, we propose an efficient and accurate monocular 3D detection framework in single shot. Most successful 3D detectors take the projection constraint from the 3D bounding box to the 2D box as an important component. Four edges of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-13 Peixuan Li , Huaici Zhao , Pengfei Liu , Feidao Cao

Low-cost autonomous agents including autonomous driving vehicles chiefly adopt monocular 3D object detection to perceive surrounding environment. This paper studies 3D intermediate representation methods which generate intermediate 3D…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Qian Ye , Ling Jiang , Wang Zhen , Yuyang Du

Monocular 3D object detection is very challenging in autonomous driving due to the lack of depth information. This paper proposes a one-stage monocular 3D object detection algorithm based on multi-scale depth stratification, which uses the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-29 Zhouzhen Xie , Yuying Song , Jingxuan Wu , Zecheng Li , Chunyi Song , Zhiwei Xu

Recent learning-based approaches, in which models are trained by single-view images have shown promising results for monocular 3D face reconstruction, but they suffer from the ill-posed face pose and depth ambiguity issue. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2020-07-27 Jiaxiang Shang , Tianwei Shen , Shiwei Li , Lei Zhou , Mingmin Zhen , Tian Fang , Long Quan

Monocular 3D object detection (Mono 3Det) aims to identify 3D objects from a single RGB image. However, existing methods often assume training and test data follow the same distribution, which may not hold in real-world test scenarios. To…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Hongbin Lin , Yifan Zhang , Shuaicheng Niu , Shuguang Cui , Zhen Li

Object detectors are vital to many modern computer vision applications. However, even state-of-the-art object detectors are not perfect. On two images that look similar to human eyes, the same detector can make different predictions because…

Computer Vision and Pattern Recognition · Computer Science 2022-07-29 Caleb Tung , Abhinav Goel , Fischer Bordwell , Nick Eliopoulos , Xiao Hu , George K. Thiruvathukal , Yung-Hsiang Lu

A key contributor to recent progress in 3D detection from single images is monocular depth estimation. Existing methods focus on how to leverage depth explicitly, by generating pseudo-pointclouds or providing attention cues for image…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Dennis Park , Jie Li , Dian Chen , Vitor Guizilini , Adrien Gaidon

In this paper we propose an approach for monocular 3D object detection from a single RGB image, which leverages a novel disentangling transformation for 2D and 3D detection losses and a novel, self-supervised confidence score for 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-05-30 Andrea Simonelli , Samuel Rota Rota Bulò , Lorenzo Porzi , Manuel López-Antequera , Peter Kontschieder

3D object detection from monocular image(s) is a challenging and long-standing problem of computer vision. To combine information from different perspectives without troublesome 2D instance tracking, recent methods tend to aggregate…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Jianlin Liu , Zhuofei Huang , Dihe Huang , Shang Xu , Ying Chen , Yong Liu

Multi-frame methods improve monocular depth estimation over single-frame approaches by aggregating spatial-temporal information via feature matching. However, the spatial-temporal feature leads to accuracy degradation in dynamic scenes. To…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Jiquan Zhong , Xiaolin Huang , Xiao Yu

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…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Qing Lian , Peiliang Li , Xiaozhi Chen

Monocular 3D object detection is an important task in autonomous driving. It can be easily intractable where there exists ego-car pose change w.r.t. ground plane. This is common due to the slight fluctuation of road smoothness and slope.…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Yunsong Zhou , Yuan He , Hongzi Zhu , Cheng Wang , Hongyang Li , Qinhong Jiang