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Publicação
Lossless light-field compression using reversible colour transformations
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Orientador(es)
Resumo(s)
Recent advances in Light Field acquisition and rendering are pushing research efforts towards increasingly efficient methods to encode this particular type of data. Light Field image compression is of the utmost importance, not only due to the large amount of data required for its representation but also due to quality requirements of many applications and computational
photography methods. This paper presents a research study about the impact of reversible colour transformations and alternative data arrangements in Light Field lossless coding. The experimental results indicate that the RCT reversible transform consistently achieves the highest compression performance across all data arrangements and lossless encoders. In particular, the
best results are obtained with MRP when encoding the stack of sub-aperture images using a spiral scan order, achieving 6.41 bpp, on average.
Descrição
Palavras-chave
Light-field compression lossless compression colour space transforms
Contexto Educativo
Citação
J. M. Santos, P. A. A. Assuncao, L. A. da Silva Cruz, L. Távora, R. Fonseca-Pinto and S. M. M. Faria, "Lossless light-field compression using reversible colour transformations," 2017 Seventh International Conference on Image Processing Theory, Tools and Applications (IPTA), Montreal, QC, Canada, 2017, pp. 1-6, doi: 10.1109/IPTA.2017.8310154
Editora
IEEE
Licença CC
Sem licença CC