Defocus and geometric distortion correction for projected images on a curved surface

J Park, BU Lee - Applied optics, 2016 - opg.optica.org
In this paper, a correction method of defocus and geometric distortion for projected images
on nonideal projection surfaces is proposed. To offer distortion-free images on curved …

Dynamic defocus and occlusion compensation of projected imagery by model-based optimal projector selection in multi-projection environment

M Nagase, D Iwai, K Sato - Virtual Reality, 2011 - Springer
This paper presents a novel model-based approach of dynamic defocus and occlusion
compensation method in a multi-projection environment. Conventional defocus …

Fast projection defocus correction for multiple projection surface types

Z He, P Li, X Zhao, S Zhang… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
A major obstacle in digital projector technology is that images projected onto nonideal
surfaces with large depth variances can easily become blurred. In this article, present a …

Estimation of projector defocus blur by extracting texture rich region in projection image

Y Oyamada, H Saito - 2008 - dspace5.zcu.cz
To use a projector anytime anywhere, a lot of projector-camera based approaches have
been proposed. Focal correction technique, one of them, reduces the effect of defocus blur …

Defocus blur correcting projector-camera system

Y Oyamada, H Saito - Advanced Concepts for Intelligent Vision Systems …, 2008 - Springer
To use a projector anytime anywhere, a lot of projector-camera based approaches have
been proposed. In this paper, we focus on a focal correction technique, one of projector …

Projection defocus correction using adaptive kernel sampling and geometric correction in dual-planar environments

S Ladha, K Smith-Miles… - CVPR 2011 …, 2011 - ieeexplore.ieee.org
Defocus blur correction for projectors using a camera is useful when the projector is used in
ad hoc environments. However, past literature has not explicitly considered the common …

A new method using geometric invariability for lens distortion correction

VT Cao, SB Cho - Journal of the Institute of Electronics Engineers …, 2011 - koreascience.kr
Most of cameras being used in practice induce lens distortion; the amount of distortion
depends on the specific applications as well as the camera cost. Up to now, many methods …

A geometric correction method for projected images using sift feature points

T Takahashi, N Numa, T Aoki, S Kondo - Proceedings of the 5th ACM …, 2008 - dl.acm.org
This paper proposes a geometric correction method for projected images using SIFT feature
points. A projected image correction method based on projector-camera system needs to …

Algebraic lens distortion model estimation

L Alvarez, L Gomez, JR Sendra - Image Processing On Line, 2010 - ipol.im
A very important property of the usual pinhole model for camera projection is that 3D lines in
the scene are projected to 2D lines. Unfortunately, wide-angle lenses (specially low-cost …

An algebraic approach to lens distortion by line rectification

L Alvarez, L Gómez, JR Sendra - Journal of Mathematical Imaging and …, 2009 - Springer
A very important property of the usual pinhole model for camera projection is that 3D lines in
the scene are projected in 2D lines. Unfortunately, wide-angle lenses (specially low-cost …