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dc.contributor.author | López-Granado, O | es_ES |
dc.contributor.author | Galiano, V | es_ES |
dc.contributor.author | Martí Campoy, Antonio | es_ES |
dc.contributor.author | Migallón, H. | es_ES |
dc.contributor.author | Martinez Rach, Miguel Onofre | es_ES |
dc.contributor.author | Piñol, Pablo | es_ES |
dc.contributor.author | Perez Malumbres, Manuel Jose | es_ES |
dc.date.accessioned | 2015-02-12T17:19:04Z | |
dc.date.available | 2015-02-12T17:19:04Z | |
dc.date.issued | 2013 | |
dc.identifier.isbn | 978-1-84564-708-7 | |
dc.identifier.issn | 1743-3517 | |
dc.identifier.uri | http://hdl.handle.net/10251/46963 | |
dc.description.abstract | Discrete Wavelet Transform has proved to be powerful for image compression because it is able to compact frequency and spatial localization of image energy into a small fraction of coefficients. For a long time it was assumed that there is no compression gain when coding the sign of wavelet coefficients. However, several attempts were carried out and several image encoders like JPEG 2000 include sign coding capabilities. In this paper, we analyze the convenience of including sign coding techniques in tree-based wavelet image encoders, showing their benefits (bit-rate saving). In order to exploit the scarce redundancy of wavelet coefficients sign, we propose the use of machine learning approaches, like evolutionary algorithms, to find the best sign prediction scheme that maximizes the resulting compression rate.We have developed a sign predictionmodule based on the results provided by the evolutionary algorithms, which it is able to work with whatever the tree-based wavelet encoder like SPIHT, LTW, and others. After performing several experiments, we have observed that, by including the proposed sign coding capabilities, the sign compression gain is up to 17%. These results show that sign coding techniques are of interest for improving compression rate, especially when working with large images (2 Mpixel and beyond) at low compression rates (high quality). | es_ES |
dc.description.sponsorship | Thanks to Spanish Ministry of Education and Science under grants TIN2011-27543-C03-03 and TEC2010-11776-E for funding. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Witpress | es_ES |
dc.relation.ispartof | Data Management and Security: Applications in Medicine, Science and Engineering | es_ES |
dc.relation.ispartofseries | WIT Transactions on Information & Communication Technologies;45 | |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Discrete Wavelet Transform | es_ES |
dc.subject | Image compression | es_ES |
dc.subject | Sign coding | es_ES |
dc.subject | Evolutionary algorithms | es_ES |
dc.subject.classification | ARQUITECTURA Y TECNOLOGIA DE COMPUTADORES | es_ES |
dc.title | Improving image compression through the use of evolutionary computing algorithms | es_ES |
dc.type | Capítulo de libro | es_ES |
dc.identifier.doi | 10.2495/DATA130041 | |
dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//TIN2011-27543-C03-03/ES/TRANSMISION DE VIDEO EFICIENTE Y ROBUSTA PARA ENTORNOS DE RED VEHICULARES/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//TEC2010-11776-E/ES/RED TEMATICA EN CODIFICACION Y TRANSMISION DE CONTENIDOS MULTIMEDIA/ | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Informática de Sistemas y Computadores - Departament d'Informàtica de Sistemes i Computadors | es_ES |
dc.description.bibliographicCitation | López-Granado, O.; Galiano, V.; Martí Campoy, A.; Migallón, H.; Martinez Rach, MO.; Piñol, P.; Perez Malumbres, MJ. (2013). Improving image compression through the use of evolutionary computing algorithms. En Data Management and Security: Applications in Medicine, Science and Engineering. Witpress. 37-46. https://doi.org/10.2495/DATA130041 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://www.witpress.com/elibrary/wit-transactions-on-information-and-communication-technologies/45/24582 | es_ES |
dc.description.upvformatpinicio | 37 | es_ES |
dc.description.upvformatpfin | 46 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.relation.senia | 245393 | |
dc.contributor.funder | Ministerio de Ciencia e Innovación | es_ES |