Depósito Digital de Documentos de la UAB Encontrados 4 registros  La búsqueda tardó 0.01 segundos. 
1.
13 p, 2.9 MB Piecewise mapping in HEVC lossless intra-prediction coding / Sánchez, Víctor (University of Warwick. Department of Computer Science) ; Aulí Llinàs, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Serra Sagristà, Joan (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
The lossless intra-prediction coding modality of the High Efficiency Video Coding standard provides high coding performance while allowing frame-by-frame basis access to the coded data. This is of interest in many professional applications, such as medical imaging, automotive vision, and digital preservation in libraries and archives. [...]
2016 - 10.1109/TIP.2016.2571065
IEEE transactions on image processing, Vol. 25, issue 9 (Sep. 2016) , p. 4004-4017  
2.
11 p, 1.5 MB Bitplane image coding with parallel coefficient processing / Aulí Llinàs, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Enfedaque Montes, Pablo (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Moure López, Juan Carlos (Universitat Autònoma de Barcelona. Departament d'Arquitectura de Computadors i Sistemes Operatius) ; Sánchez, Victor (University of Warwick. Department of Computer Science)
Image coding systems have been traditionally tailored for multiple instruction, multiple data (MIMD) computing. In general, they partition the (transformed) image in codeblocks that can be coded in the cores of MIMD-based processors. [...]
2016 - 10.1109/TIP.2015.2484069
IEEE transactions on image processing, Vol. 25, issue 1 (Jan. 2016) , p. 209-219  
3.
11 p, 301.1 KB Entropy-based evaluation of context models for wavelet-transformed images / Aulí Llinàs, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Entropy is a measure of a message uncertainty. Among others aspects, it serves to determine the minimum coding rate that practical systems may attain. This paper defines an entropy-based measure to evaluate context models employed in wavelet-based image coding. [...]
2015 - 10.1109/TIP.2014.2370937
IEEE Transactions on Image Processing, Vol. 24, Issue 1 (Jan. 2015) , p. 57-67  
4.
12 p, 424.2 KB 2-step scalar deadzone quantization for bitplane image coding / Aulí Llinàs, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
Modern lossy image coding systems generate a quality progressive codestream that, truncated at increasing rates, produces an image with decreasing distortion. Quality progressivity is commonly provided by an embedded quantizer that employs uniform scalar deadzone quantization (USDQ) together with a bitplane coding strategy. [...]
2013 - 10.1109/TIP.2013.2277801
IEEE Transactions on Image Processing, Vol. 22, Issue 12 (Dec. 2013) , p. 4678-4688  

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