Observatorio de I+D+i UPM

Descripción
The deblocking filter (DF) is one of the most complex functional cores of the H.264/AVC and SVC codecs. Its computational cost is heavily dependent on the video profile and the selected scalability level. With the goal of providing faster and better solutions, developers are focused on designing hardware architectures. Thus, it is possible taking advantage of multitasking, reusability and parallelization techniques. In this context, this work proposes a scalable DF architecture that is able to adapt its structure and performance to different video configurations, due to its modular and regular structure. The scalability feature avoids redesigning the whole architecture in case of the environmental demands or the configuration settings change. These facts mean savings in terms of design productivity and silicon area by adapting the necessary logical resources to each condition. Furthermore, regarding the data dependences involved in the H.264/ AVC DF algorithm, the proposed architecture relies on an improved version of a traditional wavefront parallelization strategy, also proposed by the authors. This solution reduces the amount of clock cycles needed to filter a video frame as compared to traditional strategies. Implementation results, in an FPGA Virtex-5, demonstrate the performance benefits of this flexible solution as compared to some rigid state-of-the-art deblocking filter approaches.
Internacional	Si
JCR del ISI	Si
Título de la revista	Journal of Real-Time Image Processing
ISSN	1861-8219
Factor de impacto JCR
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Desde la página	1
Hasta la página	25
Mes	ENERO
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Esta actividad pertenece a memorias de investigación

• Autor: Teresa Cervero (Universidad de las Palmas de Gran Canaria)
• Autor: Jose Andres Otero Marnotes (UPM)
• Autor: Eduardo de la Torre Arnanz (UPM)
• Autor: Sebastián López (Universidad de las Palmas de Gran Canaria)
• Autor: Gustavo Callicó (Universidad de las Palmas de Gran Canaria)
• Autor: Teresa Riesgo Alcaide (UPM)
• Autor: Roberto Sarmiento (Universidad de las Palmas de Gran Canaria)

• Creador: Grupo de Investigación: Electrónica Industrial
• Centro o Instituto I+D+i: Centro de Electrónica Industrial. CEI
• Departamento: Automática, Ingeniería Electrónica e Informática Industrial