@InProceedings{AudigierLotu:2005:TiWaBo,
author = "Audigier, Romaric and Lotufo, Roberto de Alencar",
affiliation = "Universidade Estadual de Campinas (UNICAMP), Brazil.",
title = "Tie-zone watershed, bottlenecks and segmentation robustness
analysis",
booktitle = "Proceedings...",
year = "2005",
editor = "Rodrigues, Maria Andr{\'e}ia Formico and Frery, Alejandro
C{\'e}sar",
organization = "Brazilian Symposium on Computer Graphics and Image Processing, 18.
(SIBGRAPI)",
publisher = "IEEE Computer Society",
address = "Los Alamitos",
keywords = "mathematical morphology, image segmentation, watershed, IFT,
segmentation robustness.",
abstract = "In a recent paper, a new type of watershed (WS) transform was
introduced: the tie-zone watershed (TZWS). This region-based
watershed transform does not depend on arbitrary implementation
and provides a unique (and thereby unbiased) optimal solution.
Indeed, many optimal solutions are sometimes possible when
segmenting an image by WS. The TZWS assigns each pixel to a
catchment basin (CB) if in all solutions it belongs to this CB.
Otherwise, the pixel is said to belong to a tie-zone (TZ). An
efficient algorithm computing the TZWS and based on the Image
Foresting Transform (IFT) was also proposed. In this article, we
define the new concept of {"}bottlenecks{"} in the watermerging
paradigm. Intuitively, the bottlenecks are the first contact
points between at least two different wave fronts. They are pixels
in the image where different colored waters meet and tie and from
which may begin, therefore, the tie-zones. They represent the
origin points or the access of the tie-zones (regions that cannot
be labeled without making arbitrary choices). If they are
preferentially assigned to one or another colored water according
to an arbitrary processing order, as occurs in most of watershed
algorithm, an entire region (its influence zone -- the
{"}bottle{"}!) is conquered together. The bottlenecks play
therefore an important role in the bias that could be introduced
by a WS implementation. It is why we show in this paper that both
tie-zones and bottlenecks analysis can be associated with the
robustness of a segmentation.",
conference-location = "Natal, RN, Brazil",
conference-year = "9-12 Oct. 2005",
doi = "10.1109/SIBGRAPI.2005.48",
url = "http://dx.doi.org/10.1109/SIBGRAPI.2005.48",
language = "en",
ibi = "6qtX3pFwXQZeBBx/GL4DM",
url = "http://urlib.net/ibi/6qtX3pFwXQZeBBx/GL4DM",
targetfile = "audigierr_tiezone.pdf",
urlaccessdate = "2024, Apr. 27"
}