O capítulo da Sociedade de Processamento de Sinais do IEEE e o Laboratório de
Processamento de Sinais (LPS - Poli/COPPE/UFRJ) convidam a comunidade acadêmica para a
GREENER VIDEO CODING
a ser proferida pelo
PROF. RICARDO L. DE QUEIROZ
IEEE SPS Distinguished Lecturer
Universidade de Brasilia
Local: LPS II
Centro de Tecnologia - Bloco I – Sala 146
Computers and information technology are proving themselves as energy-hungry partners in a society
with carbon emission issues to be resolved. Video coding is a very computation-intensive, energydemanding task. We approach green computing applied to video by setting task parameters in order to
minimize energy consumption for a given performance. We applied the concept to H.264/AVC video
coding, showing that one can substantially reduce energy consumption at the expense of a small ratedistortion (RD) performance penalty. We used a state-of-the-art implementation, x264, for tests and show
RD results for comparisons and discussions.
Dr. Ricardo L. de Queiroz received his Ph.D. degree from The University of Texas at Arlington in 1994.
He joined the research staff at Xerox Corp. from 1994 to 2002. Since 2004 he is with Universidade de
Brasilia, where he is now a Full Professor at the Computer Science Department. Dr. de Queiroz has
published over 140 articles in Journals and conferences and contributed chapters to books as well. He also
holds 46 issued patents. He is an elected member of the IEEE Signal Processing Society's Multimedia
Signal Processing (MMSP) Technical Committee and a former member of other committees and editoral
boards. He has been appointed an IEEE Signal Processing Society Distinguished Lecturer for the 2011-
2012 term. He also organized many conferences and IEEE chapters. His research interests include image
and video compression, multirate signal processing, and color imaging.
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