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Learning effective multi-modal 3D representations of objects is essential for numerous applications, such as augmented reality and robotics. Existing methods often rely on task-specific embeddings that are tailored either for semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Gaia Di Lorenzo , Federico Tombari , Marc Pollefeys , Daniel Barath

The conventional pose estimation of a 3D object usually requires the knowledge of the 3D model of the object. Even with the recent development in convolutional neural networks (CNNs), a 3D model is often necessary in the final estimation.…

Robotics · Computer Science 2019-01-01 Zhongang Cai , Cunjun Yu , Quang-Cuong Pham

While current 3D object recognition research mostly focuses on the real-time, onboard scenario, there are many offboard use cases of perception that are largely under-explored, such as using machines to automatically generate high-quality…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Charles R. Qi , Yin Zhou , Mahyar Najibi , Pei Sun , Khoa Vo , Boyang Deng , Dragomir Anguelov

In this paper, we propose a Monocular 3D Single Stage object Detector (M3DSSD) with feature alignment and asymmetric non-local attention. Current anchor-based monocular 3D object detection methods suffer from feature mismatching. To…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Shujie Luo , Hang Dai , Ling Shao , Yong Ding

LiDAR-based 3D object detection and classification is crucial for autonomous driving. However, real-time inference from extremely sparse 3D data is a formidable challenge. To address this problem, a typical class of approaches transforms…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Yongxin Shao , Aihong Tan , Zhetao Sun , Enhui Zheng , Tianhong Yan , Peng Liao

We develop new representations and algorithms for three-dimensional (3D) object detection and spatial layout prediction in cluttered indoor scenes. We first propose a clouds of oriented gradient (COG) descriptor that links the 2D appearance…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Zhile Ren , Erik B. Sudderth

Recent years have witnessed huge successes in 3D object detection to recognize common objects for autonomous driving (e.g., vehicles and pedestrians). However, most methods rely heavily on a large amount of well-labeled training data. This…

Computer Vision and Pattern Recognition · Computer Science 2023-02-09 Jiawei Liu , Xingping Dong , Sanyuan Zhao , Jianbing Shen

3D object detection from point clouds plays a critical role in autonomous driving. Currently, the primary methods for point cloud processing are voxel-based and pillar-based approaches. Voxel-based methods offer high accuracy through…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Liu Qifeng , Zhao Dawei , Dong Yabo , Xiao Liang , Wang Juan , Min Chen , Li Fuyang , Jiang Weizhong , Lu Dongming , Nie Yiming

LiDAR-based 3D object detectors often struggle to detect far-field objects due to the sparsity of point clouds at long ranges, which limits the availability of reliable geometric cues. To address this, prior approaches augment LiDAR data…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Veerain Sood , Bnalin , Gaurav Pandey

For current object detectors, the scale of the receptive field of feature extraction operators usually increases layer by layer. Those operators are called scale-oriented operators in this paper, such as the convolution layer in CNN, and…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Jie Li , Yu Hu

Today's state-of-the-art methods for 3D object detection are based on lidar, stereo, or monocular cameras. Lidar-based methods achieve the best accuracy, but have a large footprint, high cost, and mechanically-limited angular sampling…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Frank Julca-Aguilar , Jason Taylor , Mario Bijelic , Fahim Mannan , Ethan Tseng , Felix Heide

We address the problem of real-time 3D object detection from point clouds in the context of autonomous driving. Computation speed is critical as detection is a necessary component for safety. Existing approaches are, however, expensive in…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Bin Yang , Wenjie Luo , Raquel Urtasun

Monocular 3D lane detection is a challenging task due to its lack of depth information. A popular solution is to first transform the front-viewed (FV) images or features into the bird-eye-view (BEV) space with inverse perspective mapping…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Shaofei Huang , Zhenwei Shen , Zehao Huang , Zi-han Ding , Jiao Dai , Jizhong Han , Naiyan Wang , Si Liu

The 3D object detection capabilities in urban environments have been enormously improved by recent developments in Light Detection and Range (LiDAR) technology. This paper presents a novel framework that transforms the detection and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Nawfal Guefrachi , Hakim Ghazzai , Ahmad Alsharoa

This paper presents a novel 3D object detection framework that processes LiDAR data directly on its native representation: range images. Benefiting from the compactness of range images, 2D convolutions can efficiently process dense LiDAR…

Computer Vision and Pattern Recognition · Computer Science 2021-01-25 Alex Bewley , Pei Sun , Thomas Mensink , Dragomir Anguelov , Cristian Sminchisescu

Camera-radar fusion offers a robust and low-cost alternative to Camera-lidar fusion for the 3D object detection task in real-time under adverse weather and lighting conditions. However, currently, in the literature, it is possible to find…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Ruan Bispo , Dane Mitrev , Letizia Mariotti , Clément Botty , Denver Humphrey , Anthony Scanlan , Ciarán Eising

This paper proposes a segmentation-free, automatic and efficient procedure to detect general geometric quadric forms in point clouds, where clutter and occlusions are inevitable. Our everyday world is dominated by man-made objects which are…

Computer Vision and Pattern Recognition · Computer Science 2018-03-21 Tolga Birdal , Benjamin Busam , Nassir Navab , Slobodan Ilic , Peter Sturm

Accurate, fast, and reliable 3D perception is essential for autonomous driving. Recently, bird's-eye view (BEV)-based perception approaches have emerged as superior alternatives to perspective-based solutions, offering enhanced spatial…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Ozsel Kilinc , Cem Tarhan

The multi-line LiDAR is widely used in autonomous vehicles, so point cloud-based 3D detectors are essential for autonomous driving. Extracting rich multi-scale features is crucial for point cloud-based 3D detectors in autonomous driving due…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Xusheng Li , Chengliang Wang , Shumao Wang , Zhuo Zeng , Ji Liu

Point cloud-based open-vocabulary 3D object detection aims to detect 3D categories that do not have ground-truth annotations in the training set. It is extremely challenging because of the limited data and annotations (bounding boxes with…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Chenming Zhu , Wenwei Zhang , Tai Wang , Xihui Liu , Kai Chen