@InProceedings{RilaAlca:1992:CoImSu,
author = "Rila, Luciano and Alcaim, Abraham",
affiliation = "{IBM Brasil – Centro Cient{\'{\i}}fico Rio} and {IBM Brasil –
Centro Cient{\'{\i}}fico Rio}",
title = "Codifica{\c{c}}{\~a}o de imagens em sub-bandas com
quantiza{\c{c}}{\~a}o vetorial inter-bandas particionada",
booktitle = "Anais...",
year = "1992",
editor = "C{\^a}mara, Gilberto and Gomes, Jonas de Miranda",
pages = "39--45",
organization = "Simp{\'o}sio Brasileiro de Computa{\c{c}}{\~a}o Gr{\'a}fica e
Processamento de Imagens, 5. (SIBGRAPI)",
publisher = "Sociedade Brasileira de Computa{\c{c}}{\~a}o",
address = "Porto Alegre",
keywords = "codifica{\c{c}}{\~a}o de imagens, sub-bandas,
quantiza{\c{c}}{\~a}o vetorial, inter-bandas, processamento de
imagem.",
abstract = "Subband coding has proven to be an efficient method for coding
images at low bit rates. In this paper we consider an algorithm to
compress still images which is based on subband coding and
inter-band vector quantization. The image spectrum is decomposed
into 16 uniform bands using 2-D separable quadrature mirror
filters. These 16 bands are used to create 16-dimensional vectors,
which are coded using vector quantization. Our aprouch is to split
these vectors in order to reduce complexity and exploit spectral
properties of the image data. We examine the effects of the bit
allocation at rates of 0.50 bit/pixel and 0.63 bit/pixel.
Simulation results show that the performance is comparable to the
basic coding structure, while complexity is significantly
reduced.",
conference-location = "{\'A}guas de Lind{\'o}ia, SP, Brazil",
conference-year = "10-12 Nov. 1992",
isbn = "978-85-7669-270-6",
language = "pt",
ibi = "8JMKD3MGPBW34M/3CRGD6B",
url = "http://urlib.net/ibi/8JMKD3MGPBW34M/3CRGD6B",
targetfile = "5 Codificacao de imagens em sub_bandas com quantizacao vetorial
inter_bandas particionada.pdf",
type = "Processamento de Imagens",
volume = "1",
urlaccessdate = "2024, Apr. 28"
}