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Deep neural networks for aerial image segmentation require large amounts of labeled data, but high-quality aerial datasets with precise annotations are scarce and costly to produce. To address this limitation, we propose a self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Rupert Polley , Sai Vignesh Abishek Deenadayalan , J. Marius Zöllner

Datasets (semi-)automatically collected from the web can easily scale to millions of entries, but a dataset's usefulness is directly related to how clean and high-quality its examples are. In this paper, we describe and publicly release an…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Houda Alberts , Iacer Calixto

Modeling scene geometry using implicit neural representation has revealed its advantages in accuracy, flexibility, and low memory usage. Previous approaches have demonstrated impressive results using color or depth images but still have…

Robotics · Computer Science 2023-03-01 Dongyu Yan , Xiaoyang Lyu , Jieqi Shi , Yi Lin

This paper introduces a novel data-free model extraction attack that significantly advances the current state-of-the-art in terms of efficiency, accuracy, and effectiveness. Traditional black-box methods rely on using the victim's model as…

Cryptography and Security · Computer Science 2024-10-22 Maor Biton Dor , Yisroel Mirsky

Building 3D reconstruction from remote sensing images has a wide range of applications in smart cities, photogrammetry and other fields. Methods for automatic 3D urban building modeling typically employ multi-view images as input to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Yongqiang Mao , Kaiqiang Chen , Liangjin Zhao , Wei Chen , Deke Tang , Wenjie Liu , Zhirui Wang , Wenhui Diao , Xian Sun , Kun Fu

In this paper we present an autonomous system for acquiring close-range high-resolution images that maximize the quality of a later-on 3D reconstruction with respect to coverage, ground resolution and 3D uncertainty. In contrast to previous…

Computer Vision and Pattern Recognition · Computer Science 2016-05-09 Christian Mostegel , Markus Rumpler , Friedrich Fraundorfer , Horst Bischof

The ability to retrieve a photo by mere free-hand sketching highlights the immense potential of Fine-grained sketch-based image retrieval (FG-SBIR). However, its rapid practical adoption, as well as scalability, is limited by the expense of…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Himanshu Thakur , Soumitri Chattopadhyay

Land-use classification based on spaceborne or aerial remote sensing images has been extensively studied over the past decades. Such classification is usually a patch-wise or pixel-wise labeling over the whole image. But for many…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 Jian Kang , Marco Körner , Yuanyuan Wang , Hannes Taubenböck , Xiao Xiang Zhu

Tables present summarized and structured information to the reader, which makes table structure extraction an important part of document understanding applications. However, table structure identification is a hard problem not only because…

Computer Vision and Pattern Recognition · Computer Science 2020-02-07 Saqib Ali Khan , Syed Muhammad Daniyal Khalid , Muhammad Ali Shahzad , Faisal Shafait

Most real-world 3D sensors such as LiDARs perform fixed scans of the entire environment, while being decoupled from the recognition system that processes the sensor data. In this work, we propose a method for 3D object recognition using…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Siddharth Ancha , Yaadhav Raaj , Peiyun Hu , Srinivasa G. Narasimhan , David Held

Despite the importance of unsupervised object detection, to the best of our knowledge, there is no previous work addressing this problem. One main issue, widely known to the community, is that object boundaries derived only from 2D image…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Hao Tian , Yuntao Chen , Jifeng Dai , Zhaoxiang Zhang , Xizhou Zhu

Leveraging data collected from smart meters in buildings can aid in developing policies towards energy conservation. Significant energy savings could be realised if deviations in the building operating conditions are detected early, and…

Machine Learning · Computer Science 2023-03-29 Durga Prasad Pydi , S. Advaith

Spatially and geometrically accurate laser scans are essential in modelling infrastructure for applications in civil, mining and transportation. Monitoring of underground or indoor environments such as mines or tunnels is challenging due to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-01 Sarvesh Kumar Singh , Bikram Pratap Banerjee , Simit Raval

The maintenance, archiving and usage of the design drawings is cumbersome in physical form in different industries for longer period. It is hard to extract information by simple scanning of drawing sheets. Converting them to their digital…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Jesher Joshua M , Ragav V , Syed Ibrahim S P

Noise modeling lies in the heart of many image processing tasks. However, existing deep learning methods for noise modeling generally require clean and noisy image pairs for model training; these image pairs are difficult to obtain in many…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Hanshu Yan , Xuan Chen , Vincent Y. F. Tan , Wenhan Yang , Joe Wu , Jiashi Feng

Procedural synthetic data generation has received increasing attention in computer vision. Procedural signed distance functions (SDFs) are a powerful tool for modeling large-scale detailed scenes, but existing mesh extraction methods have…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Zeyu Ma , Alexander Raistrick , Lahav Lipson , Jia Deng

Creating high definition maps that contain precise information of static elements of the scene is of utmost importance for enabling self driving cars to drive safely. In this paper, we tackle the problem of drivable road boundary extraction…

Computer Vision and Pattern Recognition · Computer Science 2020-12-23 Justin Liang , Namdar Homayounfar , Wei-Chiu Ma , Shenlong Wang , Raquel Urtasun

Camera traps are used by ecologists globally as an efficient and non-invasive method to monitor animals. While it is time-consuming to manually label the collected images, recent advances in deep learning and computer vision has made it…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Gareth Lamb , Ching Hei Lo , Jin Wu , Calvin K. F. Lee

Deep learning-assisted antenna design methods such as surrogate models have gained significant popularity in recent years due to their potential to greatly increase design efficiencies by replacing the time-consuming full-wave…

Systems and Control · Electrical Eng. & Systems 2023-06-28 Zhaohui Wei , Zhao Zhou , Peng Wang , Jian Ren , Yingzeng Yin , Gert Frølund Pedersen , Ming Shen

This study showcases the utilisation of OpenCV for extracting features from photos of 2D engineering drawings. These features are then employed to reconstruct 3D CAD models in SCAD format and generate 3D point cloud data similar to LIDAR…

Computational Geometry · Computer Science 2023-09-12 Ajay B. Harish , Abhishek Rajendra Prasad