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Accurate camera calibration is crucial for various computer vision applications. However, measuring calibration accuracy in the real world is challenging due to the lack of datasets with ground truth to evaluate them. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Lala Shakti Swarup Ray , Bo Zhou , Lars Krupp , Sungho Suh , Paul Lukowicz

As image tampering becomes ever more sophisticated and commonplace, the need for image forensics algorithms that can accurately and quickly detect forgeries grows. In this paper, we revisit the ideas of image querying and retrieval to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Joel Brogan , Paolo Bestagini , Aparna Bharati , Allan Pinto , Daniel Moreira , Kevin Bowyer , Patrick Flynn , Anderson Rocha , Walter Scheirer

Object pose estimation is crucial for robotic applications and augmented reality. Beyond instance level 6D object pose estimation methods, estimating category-level pose and shape has become a promising trend. As such, a new research field…

Computer Vision and Pattern Recognition · Computer Science 2022-05-19 Pengyuan Wang , HyunJun Jung , Yitong Li , Siyuan Shen , Rahul Parthasarathy Srikanth , Lorenzo Garattoni , Sven Meier , Nassir Navab , Benjamin Busam

Incorporating prior structure information into the visual state estimation could generally improve the localization performance. In this letter, we aim to address the paradox between accuracy and efficiency in coupling visual factors with…

Robotics · Computer Science 2020-10-06 Huaiyang Huang , Haoyang Ye , Yuxiang Sun , Ming Liu

ChArUco boards are used for camera calibration, monocular pose estimation, and pose verification in both robotics and augmented reality. Such fiducials are detectable via traditional computer vision methods (as found in OpenCV) in well-lit…

Computer Vision and Pattern Recognition · Computer Science 2019-07-03 Danying Hu , Daniel DeTone , Vikram Chauhan , Igor Spivak , Tomasz Malisiewicz

Semi-dense detector-free approaches (SDF), such as LoFTR, are currently among the most popular image matching methods. While SDF methods are trained to establish correspondences between two images, their performances are almost exclusively…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Matthieu Vilain , Rémi Giraud , Hugo Germain , Guillaume Bourmaud

Multi-focus image fusion (MFIF) has attracted considerable interests due to its numerous applications. While much progress has been made in recent years with efforts on developing various MFIF algorithms, some issues significantly hinder…

Computer Vision and Pattern Recognition · Computer Science 2020-05-05 Xingchen Zhang

Multi-robot systems must have the ability to accurately estimate relative states between robots in order to perform collaborative tasks, possibly with no external aiding. Three-dimensional relative pose estimation using range measurements…

Robotics · Computer Science 2024-09-20 Syed S. Ahmed , Mohammed A. Shalaby , Charles C. Cossette , Jerome Le Ny , James R. Forbes

The advent of foundation models (FMs) in healthcare offers unprecedented opportunities to enhance medical diagnostics through automated classification and segmentation tasks. However, these models also raise significant concerns about their…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Ruinan Jin , Zikang Xu , Yuan Zhong , Qiongsong Yao , Qi Dou , S. Kevin Zhou , Xiaoxiao Li

The performance of deep neural networks for image recognition tasks such as predicting a smiling face is known to degrade with under-represented classes of sensitive attributes. We address this problem by introducing fairness-aware…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Tobias Hänel , Nishant Kumar , Dmitrij Schlesinger , Mengze Li , Erdem Ünal , Abouzar Eslami , Stefan Gumhold

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

We present gP4Pc, a new method for computing the absolute pose of a generalized camera with unknown internal scale from four corresponding 3D point-and-ray pairs. Unlike most pose-and-scale methods, gP4Pc is based on constraints arising…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Victor Fragoso , Sudipta Sinha

We present a novel approach for estimating the 2D pose of an articulated object with an application to automated video analysis of small laboratory animals. We have found that deformable part models developed for humans, exemplified by the…

Computer Vision and Pattern Recognition · Computer Science 2018-06-29 Yuliang Guo , Lakshmi Narasimhan Govindarajan , Benjamin Kimia , Thomas Serre

In this paper, we investigate the problem of prediction confidence in face and kinship verification. Most existing face and kinship verification methods focus on accuracy performance while ignoring confidence estimation for their prediction…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Min Xu , Ximiao Zhang , Xiuzhuang Zhou

Image feature matching plays a vital role in many computer vision tasks. Although many image feature detection and matching techniques have been proposed over the past few decades, it is still time-consuming to match feature points in two…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Chin-Hung Teng , Ben-Jian Dong

Being trained on large and diverse datasets, visual foundation models (VFMs) can be fine-tuned to achieve remarkable performance and efficiency in various downstream computer vision tasks. The high computational cost of data collection and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Anna Chistyakova , Mikhail Pautov

The high-quality, realistic images generated by generative models pose significant challenges for exposing them.So far, data-driven deep neural networks have been justified as the most efficient forensics tools for the challenges. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Feng Ding , Jun Zhang , Xinan He , Jianfeng Xu

We describe in this paper a new, public software for accurate "PSF-matched" multiband photometry for images of different resolution and depth, that we have named ConvPhot, of which we analyse performances and limitations. It is designed to…

Astrophysics · Physics 2009-11-13 C. De Santis , A. Grazian , A. Fontana , P. Santini

Purpose: Implanted fiducial markers are often used in radiotherapy to facilitate accurate visualization and localization of tumors. Typically, such markers are used to aid daily patient positioning and to verify the target's position during…

Medical Physics · Physics 2017-03-14 Warren G. Campbell , Moyed Miften , Bernard L. Jones

Accurate transformation estimation between camera space and robot space is essential. Traditional methods using markers for hand-eye calibration require offline image collection, limiting their suitability for online self-calibration.…

Robotics · Computer Science 2025-03-19 Tianshu Wu , Jiyao Zhang , Shiqian Liang , Zhengxiao Han , Hao Dong