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Listar por palabra clave "Image coding"

Mostrando ítems 1-5 de 5

A General Model for the Design of Efficient Sign-Coding Tools for Wavelet-Based Encoders

López-Granado, Otoniel Mario; Martínez-Rach, Miguel Onofre; Martí-Campoy, Antonio; Cruz-Chávez, Marco Antonio; Pérez Malumbres, Manuel (MDPI AG, 2020-11)

[EN] Traditionally, it has been assumed that the compression of the sign of wavelet coefficients is not worth the effort because they form a zero-mean process. However, several image encoders such as JPEG 2000 include ...
Applying a Genetic Algorithm Solution to Improve Compression of Wavelet Coefficient Sign

Martí-Campoy, Antonio; López, Otoniel; Rodríguez-Ballester, Francisco; Perez Malumbres, Manuel Jose (Springer, 2015-06-10)

Discrete Wavelet Transform has been widely used in image compression because it is able to compact frequency and spatial localization of image energy into a small fraction of coefficients. In recent years coefficient sign ...
Layer-Aware Forward Error Correction for Mobile Broadcast of Layered Media

Hellge, Cornelius; Gómez Barquero, David; Schierl, Thomas; Wiegand, Thomas (Institute of Electrical and Electronics Engineers (IEEE), 2011-06)

The bitstream structure of layered media formats such as scalable video coding (SVC) or multiview video coding (MVC) opens up new opportunities for their distribution in Mobile TV services. Features like graceful degradation ...
On the design of fast and efficient wavelet image coders with reduced memory usage

Oliver Gil, José Salvador (Universitat Politècnica de València, 2008-05-06)

Image compression is of great importance in multimedia systems and applications because it drastically reduces bandwidth requirements for transmission and memory requirements for storage. Although earlier standards for ...
Optimization of high-definition video coding and hybrid fiber-wireless transmission in the 60 GHz band

Lebedev, A.; Pham, T.T.; Beltrán Ramírez, Marta; Yu, X.; Ukhanova, A.; Llorente Sáez, Roberto; Monroy, I.T.; Forchhammer, S. (Optical Society of America, 2011)

[EN] The paper addresses the problem of distribution of highdefinition video over fiber-wireless networks. The physical layer architecture with the low complexity envelope detection solution is investigated. We present ...