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Current monocular 3D detectors are held back by the limited diversity and scale of real-world datasets. While data augmentation certainly helps, it's particularly difficult to generate realistic scene-aware augmented data for outdoor…

计算机视觉与模式识别 · 计算机科学 2025-04-11 Rishubh Parihar , Srinjay Sarkar , Sarthak Vora , Jogendra Kundu , R. Venkatesh Babu

Dominated point cloud-based 3D object detectors in autonomous driving scenarios rely heavily on the huge amount of accurately labeled samples, however, 3D annotation in the point cloud is extremely tedious, expensive and time-consuming. To…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Junbo Yin , Jin Fang , Dingfu Zhou , Liangjun Zhang , Cheng-Zhong Xu , Jianbing Shen , Wenguan Wang

Monocular depth estimation, enabled by self-supervised learning, is a key technique for 3D perception in computer vision. However, it faces significant challenges in real-world scenarios, which encompass adverse weather variations, motion…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Runze Chen , Haiyong Luo , Fang Zhao , Jingze Yu , Yupeng Jia , Juan Wang , Xuepeng Ma

Weakly supervised video anomaly detection (WS-VAD) is a challenging problem that aims to learn VAD models only with video-level annotations. In this work, we propose a Long-Short Temporal Co-teaching (LSTC) method to address the WS-VAD…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Shengyang Sun , Xiaojin Gong

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

Recent work in vision-and-language pretraining has investigated supervised signals from object detection data to learn better, fine-grained multimodal representations. In this work, we take a step further and explore how we can tap into…

计算与语言 · 计算机科学 2023-10-20 Emanuele Bugliarello , Aida Nematzadeh , Lisa Anne Hendricks

Compared to typical multi-sensor systems, monocular 3D object detection has attracted much attention due to its simple configuration. However, there is still a significant gap between LiDAR-based and monocular-based methods. In this paper,…

计算机视觉与模式识别 · 计算机科学 2024-02-21 Chenxi Huang , Tong He , Haidong Ren , Wenxiao Wang , Binbin Lin , Deng Cai

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…

计算机视觉与模式识别 · 计算机科学 2020-01-13 Peixuan Li , Huaici Zhao , Pengfei Liu , Feidao Cao

Estimating accurate 3D locations of objects from monocular images is a challenging problem because of lacking depth. Previous work shows that utilizing the object's keypoint projection constraints to estimate multiple depth candidates…

计算机视觉与模式识别 · 计算机科学 2022-09-28 Yingyan Li , Yuntao Chen , Jiawei He , Zhaoxiang Zhang

Weakly Supervised Object Localization (WSOL) methodsusually rely on fully convolutional networks in order to ob-tain class activation maps(CAMs) of targeted labels. How-ever, these networks always highlight the most discriminativeparts to…

计算机视觉与模式识别 · 计算机科学 2019-09-12 Ziyi Kou , Wentian Zhao , Guofeng Cui , Shaojie Wang

After learning a new object category from image-level annotations (with no object bounding boxes), humans are remarkably good at precisely localizing those objects. However, building good object localizers (i.e., detectors) currently…

计算机视觉与模式识别 · 计算机科学 2020-06-30 Zitian Chen , Zhiqiang Shen , Jiahui Yu , Erik Learned-Miller

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…

计算机视觉与模式识别 · 计算机科学 2021-10-14 Seokju Lee , Francois Rameau , Fei Pan , In So Kweon

Weakly supervised visual grounding aims to predict the region in an image that corresponds to a specific linguistic query, where the mapping between the target object and query is unknown in the training stage. The state-of-the-art method…

计算机视觉与模式识别 · 计算机科学 2023-02-23 Viet-Quoc Pham , Nao Mishima

Multimodal embedding models, built upon causal Vision Language Models (VLMs), have shown promise in various tasks. However, current approaches face three key limitations: the use of causal attention in VLM backbones is suboptimal for…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Haonan Chen , Hong Liu , Yuping Luo , Liang Wang , Nan Yang , Furu Wei , Zhicheng Dou

Object detection when provided image-level labels instead of instance-level labels (i.e., bounding boxes) during training is an important problem in computer vision, since large scale image datasets with instance-level labels are extremely…

计算机视觉与模式识别 · 计算机科学 2017-03-01 Ziang Yan , Jian Liang , Weishen Pan , Jin Li , Changshui Zhang

Existing 3D object detection suffers from expensive annotation costs and poor transferability to unknown data due to the domain gap, Unsupervised Domain Adaptation (UDA) aims to generalize detection models trained in labeled source domains…

计算机视觉与模式识别 · 计算机科学 2024-06-28 Yanan Zhang , Chao Zhou , Di Huang

Monocular 3D detection is a challenging task due to the lack of accurate 3D information. Existing approaches typically rely on geometry constraints and dense depth estimates to facilitate the learning, but often fail to fully exploit the…

计算机视觉与模式识别 · 计算机科学 2023-05-26 Liang Peng , Junkai Xu , Haoran Cheng , Zheng Yang , Xiaopei Wu , Wei Qian , Wenxiao Wang , Boxi Wu , Deng Cai

Monocular 3D object detection is a key problem for autonomous vehicles, as it provides a solution with simple configuration compared to typical multi-sensor systems. The main challenge in monocular 3D detection lies in accurately predicting…

计算机视觉与模式识别 · 计算机科学 2021-03-25 Cody Reading , Ali Harakeh , Julia Chae , Steven L. Waslander

We introduce the task of weakly supervised learning for detecting human and object interactions in videos. Our task poses unique challenges as a system does not know what types of human-object interactions are present in a video or the…

计算机视觉与模式识别 · 计算机科学 2021-10-08 Shuang Li , Yilun Du , Antonio Torralba , Josef Sivic , Bryan Russell

Existing roadside perception systems are limited by the absence of publicly available, large-scale, high-quality 3D datasets. Exploring the use of cost-effective, extensive synthetic datasets offers a viable solution to tackle this…

计算机视觉与模式识别 · 计算机科学 2024-07-31 Xingcheng Zhou , Deyu Fu , Walter Zimmer , Mingyu Liu , Venkatnarayanan Lakshminarasimhan , Leah Strand , Alois C. Knoll