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Monocular 3D object detection, with the aim of predicting the geometric properties of on-road objects, is a promising research topic for the intelligent perception systems of autonomous driving. Most state-of-the-art methods follow a…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Tianze Gao , Huihui Pan , Huijun Gao

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…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Junyoung Jung , Seokwon Kim , Jung Uk Kim

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

Unsupervised methods have showed promising results on monocular depth estimation. However, the training data must be captured in scenes without moving objects. To push the envelope of accuracy, recent methods tend to increase their model…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Tak-Wai Hui

We propose and study open-vocabulary monocular 3D detection, a novel task that aims to detect objects of any categores in metric 3D space from a single RGB image. Existing 3D object detectors either rely on costly sensors such as LiDAR or…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Jin Yao , Hao Gu , Xuweiyi Chen , Jiayun Wang , Zezhou Cheng

Monocular 3D object detection (M3OD) has long faced challenges due to data scarcity caused by high annotation costs and inherent 2D-to-3D ambiguity. Although various weakly supervised methods and pseudo-labeling methods have been proposed…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Seokyeong Lee , Sithu Aung , Junyong Choi , Seungryong Kim , Ig-Jae Kim , Junghyun Cho

Perceiving 3D objects from monocular inputs is crucial for robotic systems, given its economy compared to multi-sensor settings. It is notably difficult as a single image can not provide any clues for predicting absolute depth values.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-02 Tai Wang , Jiangmiao Pang , Dahua Lin

This work presents UNO, a unified monocular visual odometry framework that enables robust and adaptable pose estimation across diverse environments, platforms, and motion patterns. Unlike traditional methods that rely on deployment-specific…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Wentao Zhao , Yihe Niu , Yanbo Wang , Tianchen Deng , Shenghai Yuan , Zhenli Wang , Rui Guo , Jingchuan Wang

Precisely localizing 3D objects from a single image constitutes a central challenge in monocular 3D detection. While DETR-like architectures offer a powerful paradigm, their direct application in this domain encounters inherent limitations,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-19 Kiet Dang Vu , Trung Thai Tran , Duc Dung Nguyen

Obtaining accurate depth measurements out of a single image represents a fascinating solution to 3D sensing. CNNs led to considerable improvements in this field, and recent trends replaced the need for ground-truth labels with…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Matteo Poggi , Fabio Tosi , Stefano Mattoccia

Self-supervised monocular depth estimation has gathered notable interest since it can liberate training from dependency on depth annotations. In monocular video training case, recent methods only conduct view synthesis between existing…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Jinfeng Liu , Lingtong Kong , Bo Li , Zerong Wang , Hong Gu , Jinwei Chen

Monocular depth is important in many tasks, such as 3D reconstruction and autonomous driving. Deep learning based models achieve state-of-the-art performance in this field. A set of novel approaches for estimating monocular depth consists…

Computer Vision and Pattern Recognition · Computer Science 2022-06-30 Xuanlong Yu , Gianni Franchi , Emanuel Aldea

Monocular 3D object detection (Mono3D) is a fundamental computer vision task that estimates an object's class, 3D position, dimensions, and orientation from a single image. Its applications, including autonomous driving, augmented reality,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Abhinav Kumar

Estimating the motion of the camera together with the 3D structure of the scene from a monocular vision system is a complex task that often relies on the so-called scene rigidity assumption. When observing a dynamic environment, this…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Seokju Lee , Francois Rameau , Fei Pan , In So Kweon

Monocular 3D object detection is of great significance for autonomous driving but remains challenging. The core challenge is to predict the distance of objects in the absence of explicit depth information. Unlike regressing the distance as…

Computer Vision and Pattern Recognition · Computer Science 2022-06-30 Xuepeng Shi , Qi Ye , Xiaozhi Chen , Chuangrong Chen , Zhixiang Chen , Tae-Kyun Kim

In this survey we present a complete landscape of joint object detection and pose estimation methods that use monocular vision. Descriptions of traditional approaches that involve descriptors or models and various estimation methods have…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Aniruddha V Patil , Pankaj Rabha

Monocular 3D foundation models offer an extensible solution for perception tasks, making them attractive for broader 3D vision applications. In this paper, we propose MoRe, a training-free Monocular Geometry Refinement method designed to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Dongki Jung , Jaehoon Choi , Yonghan Lee , Sungmin Eum , Heesung Kwon , Dinesh Manocha

Current geometry-based monocular 3D object detection models can efficiently detect objects by leveraging perspective geometry, but their performance is limited due to the absence of accurate depth information. Though this issue can be…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 Chenhang He , Jianqiang Huang , Xian-Sheng Hua , Lei Zhang

Drones equipped with cameras can significantly enhance human ability to perceive the world because of their remarkable maneuverability in 3D space. Ironically, object detection for drones has always been conducted in the 2D image space,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Yue Hu , Shaoheng Fang , Weidi Xie , Siheng Chen

Monocular 3D object detection is a crucial and challenging task for autonomous driving vehicle, while it uses only a single camera image to infer 3D objects in the scene. To address the difficulty of predicting depth using only pictorial…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Jia-Quan Yu , Soo-Chang Pei