@InProceedings{Torrećo:1996:NaPhSt,
author = "Torre{\~a}o, Jos{\'e} R. A.",
title = "Natural photometric stereo?",
booktitle = "Anais...",
year = "1996",
editor = "Velho, Luiz and Albuquerque, Arnaldo de and Lotufo, Roberto A.",
pages = "95--102",
organization = "Simp{\'o}sio Brasileiro de Computa{\c{c}}{\~a}o Gr{\'a}fica e
Processamento de Imagens, 9. (SIBGRAPI)",
publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
address = "Porto Alegre",
abstract = "The human brain seems to have the ability of inferring shape from
the binocular fusion of some kinds of monocular images. Recently,
we have observed that photometric stereo (PS) images, which are
monocular images obtained under different illuminations, produce a
vivid impression of depth, when viewed under a stereoscope.
Lately, we have found that the same is true of pairs of images
obtained in different spectral bands. Employing an optical-flow
based photometric stereo algorithm on a type of {"}colour
separated images{"}, which have been so produced as to emulate the
kinds of records generated by the photosensitive cells in the
human retina, we have been able to obtain depth estimates from
them. This has led us to speculate on the possibility that a
process similar to PS could work on the human visual system. Here
we present our claim for a natural photometric stereo process,
invoking some physical and biological arguments, along with
experimental results, that could support it.",
conference-location = "Caxambu, MG, Brazil",
conference-year = "29 Oct.-1 Nov. 1996",
isbn = "85-244-0103-6",
language = "en",
organisation = "SBC - Sociedade Brasileira de Computa{\c{c}}{\~a}o; UFMG -
Universidade Federal de Minas Gerais",
ibi = "83LX3pFwXQZW44Lb/cMSux",
url = "http://urlib.net/ibi/83LX3pFwXQZW44Lb/cMSux",
targetfile = "a20.pdf",
type = "Vis{\~a}o por Computador",
urlaccessdate = "2025, July 11"
}