Camera models and fundamental concepts used in geometric computer vision

P Sturm, S Ramalingam, JP Tardif… - … and Trends® in …, 2011 - nowpublishers.com
This survey is mainly motivated by the increased availability and use of panoramic image
acquisition devices, in computer vision and various of its applications. Different technologies …

Charuco board-based omnidirectional camera calibration method

GH An, S Lee, MW Seo, K Yun, WS Cheong, SJ Kang - Electronics, 2018 - mdpi.com
In this paper, we propose a Charuco board-based omnidirectional camera calibration
method to solve the problem of conventional methods requiring overly complicated …

[HTML][HTML] Refractive geometry for underwater domes

M She, D Nakath, Y Song, K Köser - ISPRS Journal of Photogrammetry and …, 2022 - Elsevier
Underwater cameras are typically placed behind glass windows to protect them from the
water. Spherical glass, a dome port, is well suited for high water pressures at great depth …

A unifying model for camera calibration

S Ramalingam, P Sturm - IEEE transactions on pattern analysis …, 2016 - ieeexplore.ieee.org
This paper proposes a unified theory for calibrating a wide variety of camera models such as
pinhole, fisheye, cata-dioptric, and multi-camera networks. We model any camera as a set of …

Methods and systems for computer-aided surgery using intra-operative video acquired by a free moving camera

JP de Almeida Barreto - US Patent 10,499,996, 2019 - Google Patents
Disclosed is a concept for computer-assisted procedures of surgery and diagnosis that
target rigid, non-deformable anatomical parts such as bone, tissue, or teeth. The disclo sure …

Multi-view 3D reconstruction for scenes under the refractive plane with known vertical direction

YJ Chang, T Chen - 2011 international conference on computer …, 2011 - ieeexplore.ieee.org
Images taken from scenes under water suffer distortion due to refraction. While refraction
causes magnification with mild distortion on the observed images, severe distortions in …

Refractive COLMAP: refractive structure-from-motion revisited

M She, F Seegräber, D Nakath… - 2024 IEEE/RSJ …, 2024 - ieeexplore.ieee.org
In this paper, we present a complete refractive Structure-from-Motion (RSfM) framework for
underwater 3D reconstruction using refractive camera setups (for both, flat-and dome-port …

[PDF][PDF] Axial-cones: Modeling spherical catadioptric cameras for wide-angle light field rendering

Y Taguchi, A Agrawal, A Veeraraghavan… - ACM Trans. Graph., 2010 - Citeseer
Catadioptric imaging systems are commonly used for wide-angle imaging, but lead to
multiperspective images which do not allow algorithms designed for perspective cameras to …

Method and apparatus for automatic camera calibration using one or more images of a checkerboard pattern

JP de Almeida Barreto, GFP Fernandes… - US Patent …, 2016 - Google Patents
The present invention relates to a high precision method, model and apparatus for
calibrating, determining the rota tion of the lens scope around its symmetry axis, updating …

Two-view underwater 3D reconstruction for cameras with unknown poses under flat refractive interfaces

L Kang, L Wu, Y Wei, S Lao, YH Yang - Pattern Recognition, 2017 - Elsevier
In an underwater imaging system, a refractive interface is introduced when a camera looks
into the water-based environment, resulting in distorted images due to the refraction of light …