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We present VERF, a collection of two methods (VERF-PnP and VERF-Light) for providing runtime assurance on the correctness of a camera pose estimate of a monocular camera without relying on direct depth measurements. We leverage the ability…

Robotics · Computer Science 2023-08-14 Dominic Maggio , Courtney Mario , Luca Carlone

All-in-one image restoration tasks are becoming increasingly important, especially for ultra-high-definition (UHD) images. Existing all-in-one UHD image restoration methods usually boost the model's performance by introducing prompt or…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Xin Su , Zhuoran Zheng , Chen Wu

Learning-based image super-resolution aims to reconstruct high-frequency (HF) details from the prior model trained by a set of high- and low-resolution image patches. In this paper, HF to be estimated is considered as a combination of two…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Jian Zhang , Chen Zhao , Ruiqin Xiong , Siwei Ma , Debin Zhao

Learning-based image compression methods have emerged as state-of-the-art, showcasing higher performance compared to conventional compression solutions. These data-driven approaches aim to learn the parameters of a neural network model…

Multimedia · Computer Science 2024-03-20 Shima Mohammadi , Yaojun Wu , João Ascenso

We propose a CNN-based approach for multi-camera markerless motion capture of the human body. Unlike existing methods that first perform pose estimation on individual cameras and generate 3D models as post-processing, our approach makes use…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Denis Tome , Matteo Toso , Lourdes Agapito , Chris Russell

Some recent visual-based relocalization algorithms rely on deep learning methods to perform camera pose regression from image data. This paper focuses on the loss functions that embed the error between two poses to perform deep learning…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Clémentin Boittiaux , Ricard Marxer , Claire Dune , Aurélien Arnaubec , Vincent Hugel

We address the challenging problem of dense dynamic scene reconstruction and camera pose estimation from multiple freely moving cameras -- a setting that arises naturally when multiple observers capture a shared event. Prior approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Shuo Sun , Unal Artan , Malcolm Mielle , Achim J. Lilienthaland , Martin Magnusson

Full 3D estimation of human pose from a single image remains a challenging task despite many recent advances. In this paper, we explore the hypothesis that strong prior information about scene geometry can be used to improve pose estimation…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Zhe Wang , Liyan Chen , Shaurya Rathore , Daeyun Shin , Charless Fowlkes

In this work, we propose a camera self-calibration algorithm for generic cameras with arbitrary non-linear distortions. We jointly learn the geometry of the scene and the accurate camera parameters without any calibration objects. Our…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Yoonwoo Jeong , Seokjun Ahn , Christopher Choy , Animashree Anandkumar , Minsu Cho , Jaesik Park

In this paper, we present a novel, end-to-end 6D object pose estimation method that operates on RGB inputs. Our approach is composed of 2 main components: the first component classifies the objects in the input image and proposes an initial…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Ameni Trabelsi , Mohamed Chaabane , Nathaniel Blanchard , Ross Beveridge

Image registration has traditionally been done using two distinct approaches: learning based methods, relying on robust deep neural networks, and optimization-based methods, applying complex mathematical transformations to warp images…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Gabriel De Araujo , Shanlin Sun , Xiaohui Xie

Neural Radiance Fields (NeRF) have demonstrated very impressive performance in novel view synthesis via implicitly modelling 3D representations from multi-view 2D images. However, most existing studies train NeRF models with either…

Computer Vision and Pattern Recognition · Computer Science 2023-06-13 Jiahui Zhang , Fangneng Zhan , Rongliang Wu , Yingchen Yu , Wenqing Zhang , Bai Song , Xiaoqin Zhang , Shijian Lu

In this paper, we propose an efficient approach for the compression and representation of volumetric data utilizing coordinate-based networks and multi-resolution hash encoding. Efficient compression of volumetric data is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Sudarshan Devkota , Sumanta Pattanaik

Current per-shot encoding schemes aim to improve the compression efficiency by shot-level optimization. It splits a source video sequence into shots and imposes optimal sets of encoding parameters to each shot. Per-shot encoding achieved…

Image and Video Processing · Electrical Eng. & Systems 2021-12-24 Hongcheng Zhong , Jun Xu , Chen Zhu , Donghui Feng , Li Song

3D surface reconstruction from images is essential for numerous applications. Recently, Neural Radiance Fields (NeRFs) have emerged as a promising framework for 3D modeling. However, NeRFs require accurate camera poses as input, and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Yiyang Chen , Siyan Dong , Xulong Wang , Lulu Cai , Youyi Zheng , Yanchao Yang

Establishing correspondences from image to 3D has been a key task of 6DoF object pose estimation for a long time. To predict pose more accurately, deeply learned dense maps replaced sparse templates. Dense methods also improved pose…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Yongzhi Su , Mahdi Saleh , Torben Fetzer , Jason Rambach , Nassir Navab , Benjamin Busam , Didier Stricker , Federico Tombari

Latest diffusion models have shown promising results in category-level 6D object pose estimation by modeling the conditional pose distribution with depth image input. The existing methods, however, suffer from slow convergence during…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Seunghyun Lee , Tae-Kyun Kim

Demonstrated for a digital image sensor based camera is a calibration target optimized method for finding the Camera Response Function (CRF). The proposed method uses localized known target zone pixel outputs spatial averaging and histogram…

Image and Video Processing · Electrical Eng. & Systems 2021-01-15 Nabeel A. Riza , Nazim Ashraf

One of the most successful approaches to modern high quality HDR-video capture is to use camera setups with multiple sensors imaging the scene through a common optical system. However, such systems pose several challenges for HDR…

Computer Vision and Pattern Recognition · Computer Science 2013-08-23 Joel Kronander , Stefan Gustavson , Gerhard Bonnet , Anders Ynnerman , Jonas Unger

Can freely moving humans or animals themselves serve as calibration targets for multi-camera systems while simultaneously estimating their correspondences across views? We humans can solve this problem by mentally rotating the observed 2D…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Sang-Eun Lee , Ko Nishino , Shohei Nobuhara