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This paper proposes a new deep convolutional neural network (DCNN) architecture that learns pixel embeddings, such that pairwise distances between the embeddings can be used to infer whether or not the pixels lie on the same region. That…

Computer Vision and Pattern Recognition · Computer Science 2016-01-11 Adam W. Harley , Konstantinos G. Derpanis , Iasonas Kokkinos

Image geolocation is a critical task in various image-understanding applications. However, existing methods often fail when analyzing challenging, in-the-wild images. Inspired by the exceptional background knowledge of multimodal language…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Zhiqiang Wang , Dejia Xu , Rana Muhammad Shahroz Khan , Yanbin Lin , Zhiwen Fan , Xingquan Zhu

We propose a novel approach for instance-level image retrieval. It produces a global and compact fixed-length representation for each image by aggregating many region-wise descriptors. In contrast to previous works employing pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2016-07-29 Albert Gordo , Jon Almazan , Jerome Revaud , Diane Larlus

One essential step to realize modern driver assistance technology is the accurate knowledge about the location of static objects in the environment. In this work, we use artificial neural networks to predict the occupation state of a whole…

Robotics · Computer Science 2019-04-01 Daniel Bauer , Lars Kuhnert , Lutz Eckstein

Category-level pose estimation is a challenging task with many potential applications in computer vision and robotics. Recently, deep-learning-based approaches have made great progress, but are typically hindered by the need for large…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Pengyuan Wang , Takuya Ikeda , Robert Lee , Koichi Nishiwaki

Recovering structure and motion parameters given a image pair or a sequence of images is a well studied problem in computer vision. This is often achieved by employing Structure from Motion (SfM) or Simultaneous Localization and Mapping…

Computer Vision and Pattern Recognition · Computer Science 2018-11-07 Thanuja Dharmasiri , Andrew Spek , Tom Drummond

Accurate camera models are essential for photogrammetry applications such as 3D mapping and object localization, particularly for long distances. Various stereo-camera based 3D localization methods are available but are limited to few…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Ami Pandat , Punna Rajasekhar , G. Aravamuthan , Gopika Vinod , Rohit Shukla

Relative location prediction in computed tomography (CT) scan images is a challenging problem. In this paper, a regression model based on one-dimensional convolutional neural networks is proposed to determine the relative location of a CT…

Computer Vision and Pattern Recognition · Computer Science 2017-11-22 Jiajia Guo , Hongwei Du , Bensheng Qiu , Xiao Liang

In this paper, we propose a deep learning framework for the automated counting and geolocation of palm trees from aerial images using convolutional neural networks. For this purpose, we collected aerial images in a palm tree Farm in the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Adel Ammar , Anis Koubaa

Monocular depth estimation and image deblurring are two fundamental tasks in computer vision, given their crucial role in understanding 3D scenes. Performing any of them by relying on a single image is an ill-posed problem. The recent…

Computer Vision and Pattern Recognition · Computer Science 2023-07-31 Saqib Nazir , Lorenzo Vaquero , Manuel Mucientes , Víctor M. Brea , Daniela Coltuc

Estimation of a single leaf area can be a measure of crop growth and a phenotypic trait to breed new varieties. It has also been used to measure leaf area index and total leaf area. Some studies have used hand-held cameras, image processing…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Namal Jayasuriya , Yi Guo , Wen Hu , Oula Ghannoum

In this paper, we evaluate the accuracy of deep learning approaches on geospatial vector geometry classification tasks. The purpose of this evaluation is to investigate the ability of deep learning models to learn from geometry coordinates…

Machine Learning · Statistics 2019-06-12 Rein van 't Veer , Peter Bloem , Erwin Folmer

Modern cameras are equipped with a wide array of sensors that enable recording the geospatial context of an image. Taking advantage of this, we explore depth estimation under the assumption that the camera is geocalibrated, a problem we…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Scott Workman , Hunter Blanton

High-precision positioning is vital for cellular networks to support innovative applications such as extended reality, unmanned aerial vehicles (UAVs), and industrial Internet of Things (IoT) systems. Existing positioning algorithms using…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Shugong Xu , Jun Jiang , Wenjun Yu , Yilin Gao , Guangjin Pan , Shiyi Mu , Zhiqi Ai , Yuan Gao , Peigang Jiang , Cheng-Xiang Wang

The human visual system excels at detecting local blur of visual images, but the underlying mechanism is not well understood. Traditional views of blur such as reduction in energy at high frequencies and loss of phase coherence at localized…

Computer Vision and Pattern Recognition · Computer Science 2018-06-13 Kede Ma , Huan Fu , Tongliang Liu , Zhou Wang , Dacheng Tao

Training networks to perform metric relocalization traditionally requires accurate image correspondences. In practice, these are obtained by restricting domain coverage, employing additional sensors, or capturing large multi-view datasets.…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Mike Kasper , Fernando Nobre , Christoffer Heckman , Nima Keivan

The human visual system processes images with varied degrees of resolution, with the fovea, a small portion of the retina, capturing the highest acuity region, which gradually declines toward the field of view's periphery. However, the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Beatriz Paula , Plinio Moreno

In this paper, a novel learning-based network, named DeepDT, is proposed to reconstruct the surface from Delaunay triangulation of point cloud. DeepDT learns to predict inside/outside labels of Delaunay tetrahedrons directly from a point…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Yiming Luo , Zhenxing Mi , Wenbing Tao

We address the problem of finding reliable dense correspondences between a pair of images. This is a challenging task due to strong appearance differences between the corresponding scene elements and ambiguities generated by repetitive…

Computer Vision and Pattern Recognition · Computer Science 2018-11-30 Ignacio Rocco , Mircea Cimpoi , Relja Arandjelović , Akihiko Torii , Tomas Pajdla , Josef Sivic

Compared to abstract features, significant objects, so-called landmarks, are a more natural means for vehicle localization and navigation, especially in challenging unstructured environments. The major challenge is to recognize landmarks in…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Benjamin Naujoks , Patrick Burger , Hans-Joachim Wuensche
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