Publicado em: 20/05/2013

Dissertação de Mestrado em Processamento Gráfico

UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL 
INSTITUTO DE INFORMÁTICA
PROGRAMA DE POS-GRADUAÇÃO EM COMPUTAÇÃO
———————————————————
DEFESA DE DISSERTAÇÃO DE MESTRADO

Aluno: Rafael Pacheco Kovaleski 
Orientador: Prof. Dr. Manuel Menezes de Oliveira Neto 

Titulo: High-Quality Reverse Tone Mapping for a Wide Range of Exposures 
Linha de Pesquisa: Processamento Gráfico

Data: 27/05/2013 
Hora: 10h30min
Local: Auditório José Mauro Volkmer de Castilho, Prédio 43424 – Instituto de Informática

Banca Examinadora:
Prof. Dr. Anderson Maciel (UFRGS)
Prof. Dr. Cesar Tadeu Pozzer (UFSM)
Prof. Dr. Horacio Enrique Fortunato (UniRitter)

Presidente da Banca: Prof. Dr. Manuel Menezes de Oliveira Neto

Resumo: Reverse-tone-mapping operators (rTMOs) enhance low-dynamic-range images and videos for display on high-dynamic-range monitors. A common problem faced by previous rTMOs is the handling of under or overexposed content. Under such conditions, they may not be effective, and even cause loss and reversal of visible contrast. We present a class of local rTMOs based on cross-bilateral filtering that is capable of generating high-quality HDR images and videos for a wide range of exposure conditions. Experiments performed using an objective image quality metric show that our approach is the only single technique available that can gracefully enhance perceived details across a large range of image exposures.

Palavras-chave:  reverse tone mapping, high dynamic range, cross bilateral filter