Publication
Title
What does one image of one ball tell us about the focal length?
Author
Abstract
We reanimate the (sometimes forgotten) Belgian Theorems, and show how the balls of Dandelin can give us elegant proofs for geometric properties of perspective ball projections. As a consequence, we derive a new formula for computing the focal length by means of 1 image of 1 ball. By means of simulations we show the sensitivity of our formula in function of the ratio of the major axis to the minor axis of the elliptic ball image. This provides a measure of reliability and enables us to select the most appropriate ball image.
Language
English
Source (book)
Advanced concepts for intelligent vision systems : 16th International Conference, ACIVS 2015, Catania, Italy, October 26-29, 2015, proceedings / Battiato, Sebastiano [edit.]; et al.
Source (series)
Lecture notes in computer science ; 9386
Publication
Cham : Springer int publishing ag, 2015
ISSN
0302-9743
Volume/pages
9386(2015), p. 501-509
ISI
000374794500043
Number
978-3-319-25902-4
978-3-319-25903-1
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 13.11.2015
Last edited 22.07.2017
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