@InProceedings{NevesBoreGonz:2000:TaSeBo,
author = "Neves, Evelina Maria de Almeida and Borelli, Jo{\~a}o Eduardo and
Gonzaga, Adilson",
title = "Target search by bottom-up and top-down fuzzy information",
booktitle = "Proceedings...",
year = "2000",
editor = "Carvalho, Paulo Cezar Pinto and Walter, Marcelo",
pages = "60--66",
organization = "Brazilian Symposium on Computer Graphics and Image Processing, 13.
(SIBGRAPI)",
publisher = "IEEE Computer Society",
address = "Los Alamitos",
note = "The conference was held in Gramado, RS, Brazil, from October 17 to
20.",
keywords = "visual perception, target search, bottom-up fuzzy information,
top-down fuzzy information, feature extraction, visual field,
human visual attention, fuzzy net, fuzzy subsystems, decision
rules, visual perception, Gestalt laws, salience index,
geometrical objects.",
abstract = "One of the basic tasks assigned to the attentional mechanism is to
decide which location in the visual field we must pay attention
first. An object containing a distinctive feature can attract
attention in a bottom-up way. By comparing one object with the
others present in the scene, bottom-up conspicuity features are
used to guide attention to the most different object. Top-down
hints are based on the previous knowledge about the objects or on
which features are important to locate them and also have a large
influence on the attended locations. Inspired by the mechanisms of
human visual attention we developed a new methodology to integrate
bottom-up and top-down information by using a fuzzy net containing
three fuzzy subsystems. The first bottom-up subsystem allow us to
combine features and infer with great flexibility some intuitive
decision rules based on the visual perception principles such as
the Gestalt laws. The second top-down subsystem combines different
features according to the relevance of them in different tasks.
Finally, the last subsystem integrates the information of the
previous systems and gives a general salience index. The new
methodology was tested in geometrical objects considering the
features that attract attention to human beings.",
conference-location = "Gramado, RS, Brazil",
conference-year = "17-20 Oct. 2000",
doi = "10.1109/SIBGRA.2000.883895",
url = "http://dx.doi.org/10.1109/SIBGRA.2000.883895",
organisation = "SBC - Brazilian Computer Society",
ibi = "6qtX3pFwXQZeBBx/w4R9B",
url = "http://urlib.net/ibi/6qtX3pFwXQZeBBx/w4R9B",
targetfile = "60-66.pdf",
urlaccessdate = "2024, May 04"
}