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This paper addresses the problem of detecting relevant motion caused by objects of interest (e.g., person and vehicles) in large scale home surveillance videos. The traditional method usually consists of two separate steps, i.e., detecting…

Computer Vision and Pattern Recognition · Computer Science 2018-01-09 Ruichi Yu , Hongcheng Wang , Larry S. Davis

Stereo vision techniques have been widely used in civil engineering to acquire 3-D road data. The two important factors of stereo vision are accuracy and speed. However, it is very challenging to achieve both of them simultaneously and…

Computer Vision and Pattern Recognition · Computer Science 2018-08-30 Rui Fan , Yanan Liu , Xingrui Yang , Mohammud Junaid Bocus , Naim Dahnoun , Scott Tancock

RGB-D cameras supply rich and dense visual and spatial information for various robotics tasks such as scene understanding, map reconstruction, and localization. Integrating depth and visual information can aid robots in localization and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Ali Tourani , Saad Ejaz , Hriday Bavle , Jose Luis Sanchez-Lopez , Holger Voos

Automated pavement crack detection and measurement are important road issues. Agencies have to guarantee the improvement of road safety. Conventional crack detection and measurement algorithms can be extremely time-consuming and low…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Zhun Fan , Chong Li , Ying Chen , Paola Di Mascio , Xiaopeng Chen , Guijie Zhu , Giuseppe Loprencipe

This paper presents a novel approach for background/foreground segmentation of RGBD data with the Gaussian Mixture Models (GMM). We first start by the background subtraction from the colour and depth images separately. The foregrounds…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Abdenour Amamra , Tarek Mouats , Nabil Aouf

This paper proposes a new approach for automated floorplan reconstruction from RGBD scans, a major milestone in indoor mapping research. The approach, dubbed Floor-SP, formulates a novel optimization problem, where room-wise coordinate…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Jiacheng Chen , Chen Liu , Jiaye Wu , Yasutaka Furukawa

We present a novel diffusion-based approach for coherent 3D scene reconstruction from a single RGB image. Our method utilizes an image-conditioned 3D scene diffusion model to simultaneously denoise the 3D poses and geometries of all objects…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Manuel Dahnert , Angela Dai , Norman Müller , Matthias Nießner

Deploying autonomous robots in crowded indoor environments usually requires them to have accurate dynamic obstacle perception. Although plenty of previous works in the autonomous driving field have investigated the 3D object detection…

Robotics · Computer Science 2024-02-28 Zhefan Xu , Xiaoyang Zhan , Yumeng Xiu , Christopher Suzuki , Kenji Shimada

Depth sensing is crucial for 3D reconstruction and scene understanding. Active depth sensors provide dense metric measurements, but often suffer from limitations such as restricted operating ranges, low spatial resolution, sensor…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Chao Liu , Jinwei Gu , Kihwan Kim , Srinivasa Narasimhan , Jan Kautz

Scene graphs are a compact and explicit representation successfully used in a variety of 2D scene understanding tasks. This work proposes a method to incrementally build up semantic scene graphs from a 3D environment given a sequence of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Shun-Cheng Wu , Johanna Wald , Keisuke Tateno , Nassir Navab , Federico Tombari

Event cameras are bio-inspired sensors that offer several advantages, such as low latency, high-speed and high dynamic range, to tackle challenging scenarios in computer vision. This paper presents a solution to the problem of 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Yi Zhou , Guillermo Gallego , Henri Rebecq , Laurent Kneip , Hongdong Li , Davide Scaramuzza

Multi-sensor fusion has significant potential in perception tasks for both indoor and outdoor environments. Especially under challenging conditions such as adverse weather and low-light environments, the combined use of millimeter-wave…

Image and Video Processing · Electrical Eng. & Systems 2025-05-23 Tieshuai Song , Jiandong Ye , Ao Guo , Guidong He , Bin Yang

This paper investigates the possibility of reconstruction of images considering that they are sparse in the DCT transformation domain. Two approaches are considered. One when the image is pre-processed in the DCT domain, using 8x8 blocks.…

Computer Vision and Pattern Recognition · Computer Science 2014-07-15 Isidora Stanković

A key question in the problem of 3D reconstruction is how to train a machine or a robot to model 3D objects. Many tasks like navigation in real-time systems such as autonomous vehicles directly depend on this problem. These systems usually…

Computer Vision and Pattern Recognition · Computer Science 2022-09-22 AmirHossein Zamani , Amir G. Aghdam , Kamran Ghaffari T

3D scene understanding is crucial for facilitating seamless interaction between digital devices and the physical world. Real-time capturing and processing of the 3D scene are essential for achieving this seamless integration. While existing…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Remco Royen , Kostas Pataridis , Ward van der Tempel , Adrian Munteanu

Three-dimensional object detection is one of the key tasks in autonomous driving. To reduce costs in practice, low-cost multi-view cameras for 3D object detection are proposed to replace the expansive LiDAR sensors. However, relying solely…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Zhiwei Lin , Zhe Liu , Zhongyu Xia , Xinhao Wang , Yongtao Wang , Shengxiang Qi , Yang Dong , Nan Dong , Le Zhang , Ce Zhu

BACKGROUND AND OBJECTIVE: Patient positioning is a crucial step in radiation therapy, for which non-invasive methods have been developed based on surface reconstruction using optical 3D imaging. However, most solutions need expensive…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Hamid Sarmadi , Rafael Muñoz-Salinas , M. Álvaro Berbís , Antonio Luna , Rafael Medina-Carnicer

Urban traffic management increasingly requires intelligent sensing systems capable of adapting to dynamic traffic conditions without costly infrastructure modifications. Vision-based vehicle detection has therefore become a key technology…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Mustafa Fatih Şen , Halûk Gümüşkaya , Şenol Pazar

Previous RGB-D salient object detection (SOD) methods have widely adopted deep learning tools to automatically strike a trade-off between RGB and D (depth), whose key rationale is to take full advantage of their complementary nature, aiming…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Xuehao Wang , Shuai Li , Chenglizhao Chen , Aimin Hao , Hong Qin

The 3D reconstruction of simultaneous localization and mapping (SLAM) is an important topic in the field for transport systems such as drones, service robots and mobile AR/VR devices. Compared to a point cloud representation, the 3D…

Robotics · Computer Science 2023-09-12 Quentin Picard , Stephane Chevobbe , Mehdi Darouich , Jean-Yves Didier