@InProceedings{FonsecaKenn:1999:CoPoAs,
author = "Fonseca, L. M. G. and Kenney, C. S.",
title = "Control point assessment for image registration",
booktitle = "Proceedings...",
year = "1999",
editor = "Stolfi, Jorge and Tozzi, Cl{\'e}sio Luis",
pages = "125--132",
organization = "Brazilian Symposium on Computer Graphics and Image Processing, 12.
(SIBGRAPI)",
publisher = "IEEE Computer Society",
address = "Los Alamitos",
note = "The conference was held in Campinas, SP, Brazil, from October 17
to 20.",
keywords = "cpa algorithm, lloyd algorithm, image.",
abstract = "This paper presents several extensions of the basic CPA algorithm.
First we compare CPA to standard corner detection algorithms and
then turn to the question of selecting control points with
adequate dispersion since this is crucial for accurate
registration. Two selection methods are proposed. The first
consists of clustering the control points via the Lloyd algorithm
followed by selecting the dominant control point in each cluster.
This 'gold stantard' approach produces excellent dispersion but is
costly in terms of computacional effort. The second selection
method consists of subdividing the image and then selecting
dominant control points in each subdivision. This is extremely
fast and produces results comparable to the Lloyd selection
method. The paper concludes with a discussion of how LS operator
norm information can be coupled with anisotropic diffusion to
produce smoothed images without corner degradation.",
conference-location = "Campinas, SP, Brazil",
conference-year = "17-20 Oct. 1999",
doi = "10.1109/SIBGRA.1999.805717",
url = "http://dx.doi.org/10.1109/SIBGRA.1999.805717",
organisation = "SBC - Brazilian Computer Society and UNICAMP - University of
Campinas",
ibi = "83LX3pFwXQZ4BFjAq/jhcjj",
url = "http://urlib.net/ibi/83LX3pFwXQZ4BFjAq/jhcjj",
targetfile = "012-30329670.pdf",
urlaccessdate = "2024, May 02"
}