Improved Pixel-Based Rate Allocation for Pixel-Domain Distributed Video Coders Without Feedback Channel

Morbée, Marleen; Prades-Nebot, J.; Roca, Antoni; Pižurica, Aleksandra; Philips, Wilfried

doi:10.1007/978-3-540-74607-2_60

Cited by 8 publications

(8 citation statements)

References 4 publications

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“…A pixel-domain feedback suppressed system was developed in [10]. However, the simulation results did not consider the key frames in the R-D performance, making comparisons difficult.…”

Section: Overview Of the Previous Workmentioning

confidence: 99%

“…This system produced excellent results at a reduced encoding complexity. A system similar to [10] but for transform-domain DVC was presented in [15], where a multi-mode SI method was used at the encoder. More advanced and complete attempts at creating and analysing a feedback-free DVC system were presented in [16] and [17].…”

Section: Overview Of the Previous Workmentioning

confidence: 99%

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Suppressing feedback in a distributed video coding system by employing real field codes

Louw

Kaneko

2013

EURASIP J. Adv. Signal Process.

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Single-view distributed video coding (DVC) is a video compression method that allows for the computational complexity of the system to be shifted from the encoder to the decoder. The reduced encoding complexity makes DVC attractive for use in systems where processing power or energy use at the encoder is constrained, for example, in wireless devices and surveillance systems. One of the biggest challenges in implementing DVC systems is that the required rate must be known at the encoder. The conventional approach is to use a feedback channel from the decoder to control the rate. Feedback channels introduce their own difficulties such as increased latency and buffering requirements, which makes the resultant system unsuitable for some applications. Alternative approaches, which do not employ feedback, suffer from either increased encoder complexity due to performing motion estimation at the encoder, or an inaccurate rate estimate. Inaccurate rate estimates can result in a reduced average rate-distortion performance, as well as unpleasant visual artifacts. In this paper, the authors propose a single-view DVC system that does not require a feedback channel. The consequences of inaccuracies in the rate estimate are addressed by using codes defined over the real field and a decoder employing successive refinement. The result is a codec with performance that is comparable to that of a feedback-based system at low rates without the use of motion estimation at the encoder or a feedback path. The disadvantage of the approach is a reduction in average rate-distortion performance in the high-rate regime for sequences with significant motion.

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“…A pixel-domain feedback suppressed system was developed in [10]. However, the simulation results did not consider the key frames in the R-D performance, making comparisons difficult.…”

Section: Overview Of the Previous Workmentioning

confidence: 99%

Section: Overview Of the Previous Workmentioning

confidence: 99%

Suppressing feedback in a distributed video coding system by employing real field codes

Louw

Kaneko

2013

EURASIP J. Adv. Signal Process.

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“…The research work on distributed video coding was published as one journal article [Morbee et al, 2008a], one chapter in Lecture Notes on Computer Science [Morbee et al, 2007a], and several international conference publications [Roca et al, 2008, Roca et al, 2007, Morbee et al, 2007d, Morbee et al, 2007c, Morbee et al, 2007b, Morbee et al, 2006a.…”

Section: Resultsmentioning

confidence: 99%

“…La investigación llevada a cabo durante esta tesis resultó en cinco publicaciones en revistas internacionales (dos publicadas, dos en revisión, una en preparación) de las cuales tres como primer autor [Morbee et al, 2011, Prades-Nebot et al, 2010, Morbee et al, 2008a, dos solicitudes de patentes (registradas) como primer autor , dos capítulos en Lecture Notes of Computer Science de los cuales uno como primer autor [Lee et al, 2008, Morbee et al, 2007a, y doce publicaciones en congresos internacionales de las cuales ocho como primer autor [Morbee et al, 2009b, Morbee et al, 2009a, Morbee et al, 2008b, Roca et al, 2008, Roca et al, 2007, Morbee et al, 2007d, Morbee et al, 2007c, Morbee et al, 2007b, Morbee et al, 2006a, Morbee et al, 2006b]. …”

Section: En Resumen Las Principales Contribuciones De Esta Tesis Sonunclassified

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Optimized information processing in resource-constrained vision systems. From low-complexity coding to smart sensor networks

Morbée¹

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A low-complexity and efficient encoder rate control solution for distributed residual video coding

et al. 2017

Multimed Tools Appl

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Improved Pixel-Based Rate Allocation for Pixel-Domain Distributed Video Coders Without Feedback Channel

Cited by 8 publications

References 4 publications

Suppressing feedback in a distributed video coding system by employing real field codes

Suppressing feedback in a distributed video coding system by employing real field codes

Optimized information processing in resource-constrained vision systems. From low-complexity coding to smart sensor networks

A low-complexity and efficient encoder rate control solution for distributed residual video coding

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