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In this work, we build a modular-designed codebase, formulate strong training recipes, design an error diagnosis toolbox, and discuss current methods for image-based 3D object detection. In particular, different from other highly mature…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Xinzhu Ma , Yongtao Wang , Yinmin Zhang , Zhiyi Xia , Yuan Meng , Zhihui Wang , Haojie Li , Wanli Ouyang

Accurate and effective 3D object detection is critical for ensuring the driving safety of autonomous vehicles. Recently, state-of-the-art two-stage 3D object detectors have exhibited promising performance. However, these methods refine…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Mingyu Liu , Ekim Yurtsever , Marc Brede , Jun Meng , Walter Zimmer , Xingcheng Zhou , Bare Luka Zagar , Yuning Cui , Alois Knoll

We present a method for decomposing the 3D scene flow observed from a moving stereo rig into stationary scene elements and dynamic object motion. Our unsupervised learning framework jointly reasons about the camera motion, optical flow, and…

计算机视觉与模式识别 · 计算机科学 2019-09-17 Seokju Lee , Sunghoon Im , Stephen Lin , In So Kweon

Recently most popular tracking frameworks focus on 2D image sequences. They seldom track the 3D object in point clouds. In this paper, we propose PointIT, a fast, simple tracking method based on 3D on-road instance segmentation. Firstly, we…

计算机视觉与模式识别 · 计算机科学 2019-02-19 Yuan Wang , Yang Yu , Ming Liu

In this paper, we propose a long-sequence modeling framework, named StreamPETR, for multi-view 3D object detection. Built upon the sparse query design in the PETR series, we systematically develop an object-centric temporal mechanism. The…

计算机视觉与模式识别 · 计算机科学 2023-06-08 Shihao Wang , Yingfei Liu , Tiancai Wang , Ying Li , Xiangyu Zhang

Object detection in 3D with stereo cameras is an important problem in computer vision, and is particularly crucial in low-cost autonomous mobile robots without LiDARs. Nowadays, most of the best-performing frameworks for stereo 3D object…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Yuxuan Liu , Lujia Wang , Ming Liu

The goal of this paper is to classify objects mapped by LiDAR sensor into different classes such as vehicles, pedestrians and bikers. Utilizing a LiDAR-based object detector and Neural Networks-based classifier, a novel real-time object…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Farzad Shafiei Dizaji

This paper presents a stereo object matching method that exploits both 2D contextual information from images as well as 3D object-level information. Unlike existing stereo matching methods that exclusively focus on the pixel-level…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Jaesung Choe , Kyungdon Joo , Francois Rameau , In So Kweon

Intelligent robots require object-level scene understanding to reason about possible tasks and interactions with the environment. Moreover, many perception tasks such as scene reconstruction, image retrieval, or place recognition can…

计算机视觉与模式识别 · 计算机科学 2023-05-05 Cathrin Elich , Iro Armeni , Martin R. Oswald , Marc Pollefeys , Joerg Stueckler

Curriculum learning techniques are a viable solution for improving the accuracy of automatic models, by replacing the traditional random training with an easy-to-hard strategy. However, the standard curriculum methodology does not…

计算机视觉与模式识别 · 计算机科学 2020-09-23 Petru Soviany

Accurate camera-LiDAR fusion relies on precise extrinsic calibration, which fundamentally depends on establishing reliable cross-modal correspondences under potentially large misalignments. Existing learning-based methods typically project…

计算机视觉与模式识别 · 计算机科学 2026-04-01 Ni Ou , Zhuo Chen , Xinru Zhang , Junzheng Wang

Scale variation is one of the key challenges in object detection. In this work, we first present a controlled experiment to investigate the effect of receptive fields for scale variation in object detection. Based on the findings from the…

计算机视觉与模式识别 · 计算机科学 2019-08-21 Yanghao Li , Yuntao Chen , Naiyan Wang , Zhaoxiang Zhang

Monocular 3D object detection plays a crucial role in autonomous driving. However, existing monocular 3D detection algorithms depend on 3D labels derived from LiDAR measurements, which are costly to acquire for new datasets and challenging…

计算机视觉与模式识别 · 计算机科学 2024-09-25 Fulong Ma , Xiaoyang Yan , Guoyang Zhao , Xiaojie Xu , Yuxuan Liu , Jun Ma , Ming Liu

We propose spatial semantic embedding network (SSEN), a simple, yet efficient algorithm for 3D instance segmentation using deep metric learning. The raw 3D reconstruction of an indoor environment suffers from occlusions, noise, and is…

计算机视觉与模式识别 · 计算机科学 2020-07-08 Dongsu Zhang , Junha Chun , Sang Kyun Cha , Young Min Kim

This paper proposes a novel model, named Continuity-Discrimination Convolutional Neural Network (CD-CNN), for visual object tracking. Existing state-of-the-art tracking methods do not deal with temporal relationship in video sequences,…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Shen Li , Bingpeng Ma , Hong Chang , Shiguang Shan , Xilin Chen

Object recognition in the presence of background clutter and distractors is a central problem both in neuroscience and in machine learning. However, the performance level of the models that are inspired by cortical mechanisms, including…

计算机视觉与模式识别 · 计算机科学 2014-10-29 Reza Moazzezi

Generally, the performance of a generic detector decreases significantly when it is tested on a specific scene due to the large variation between the source training dataset and the samples from the target scene. To solve this problem, we…

计算机视觉与模式识别 · 计算机科学 2017-07-14 Ala Mhalla , Thierry Chateau , Houda Maamatou , Sami Gazzah , Najoua Essoukri Ben Amara

4D millimeter-wave radar has emerged as a promising sensing modality for autonomous driving due to its robustness and affordability. However, its sparse and weak geometric cues make reliable instance activation difficult, limiting the…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Xiaokai Bai , Lianqing Zheng , Si-Yuan Cao , Xiaohan Zhang , Zhe Wu , Beinan Yu , Fang Wang , Jie Bai , Hui-Liang Shen

Most tracking-by-detection methods employ a local search window around the predicted object location in the current frame assuming the previous location is accurate, the trajectory is smooth, and the computational capacity permits a search…

计算机视觉与模式识别 · 计算机科学 2016-05-09 Gao Zhu , Fatih Porikli , Hongdong Li

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