Publication detail

Fisheye correction by CGA non-linear transformation

HRDINA, J. NÁVRAT, A. VAŠÍK, P. MATOUŠEK, R.

English title

Fisheye correction by CGA non-linear transformation

Type

journal article in Web of Science

Language

en

Original abstract

We provide a non‐linear image transformation by means of conformal geometric algebra (CGA) elements and operations. We show the correspondence to the fisheye correction algorithms; more precisely, we prove the proportionality of classical models with CGA algorithm and provide exact formula in terms of CGA. Consequently, we show that the geometric construction allows to determine the inverse model quite universally.

English abstract

We provide a non‐linear image transformation by means of conformal geometric algebra (CGA) elements and operations. We show the correspondence to the fisheye correction algorithms; more precisely, we prove the proportionality of classical models with CGA algorithm and provide exact formula in terms of CGA. Consequently, we show that the geometric construction allows to determine the inverse model quite universally.

Keywords in English

conformal geometric algebra, fisheye correction

Released

30.06.2018

Publisher

John Wiley & Sons, Ltd.

Location

United Kingdom

ISSN

1099-1476

Volume

41

Number

11

Pages from–to

4106–4116

Pages count

11

BIBTEX


@article{BUT148403,
  author="Jaroslav {Hrdina} and Aleš {Návrat} and Petr {Vašík} and Radomil {Matoušek},
  title="Fisheye correction by CGA non-linear transformation",
  year="2018",
  volume="41",
  number="11",
  month="June",
  pages="4106--4116",
  publisher="John Wiley & Sons, Ltd.",
  address="United Kingdom",
  issn="1099-1476"
}