Layer-weighted unequal error protection for scalable video coding extension of H.264/AVC

Ha, Hojin; Yim, Changhoon

doi:10.1109/tce.2008.4560155

Cited by 73 publications

(101 citation statements)

References 14 publications

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“…The first aspect refers to the structure of the data: a set of packets in a stream, a set of macroblocks in a frame, a frame, or a video layer. The second alludes to the units within the encoded video stream, whose features are analyzed to perform the prioritization: macroblock ranking, frame classification, and video scalability exploitation [5,6,11]. In general, the finer the granularity of evaluation, the more computationally costly the technique.…”

Section: Unequal Loss Protectionmentioning

confidence: 99%

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Cubero¹,

Gutiérrez

Pérez³

et al. 2012

Bell Labs Tech. J.

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Recently, three-dimensional (3D) video has decisively burst onto the entertainment industry scene, and has arrived in households even before the standardization process has been completed. 3D television (3DTV) adoption and deployment can be seen as a major leap in television history, similar to previous transitions from black and white (B&W) to color, from analog to digital television (TV), and from standard definition to high definition. In this paper, we analyze current 3D video technology trends in order to define a taxonomy of the availability and possible introduction of 3D-based services. We also propose an audiovisual network services architecture which provides a smooth transition from two-dimensional (2D) to 3DTV in an Internet Protocol (IP)-based scenario. Based on subjective assessment tests, we also analyze those factors which will influence the quality of experience in those 3D video services, focusing on effects of both coding and transmission errors. In addition, examples of the application of the architecture and results of assessment tests are provided. IntroductionBoth the entertainment industry and the research community are focused on the decisive introduction and evolution of three-dimensional (3D) video in entertainment media. The possibilities of this novelty technology in terms of immersiveness and enhancement of the user experience are generating great expectations in the sector, as new market and business opportunities are foreseen.Several possible 3D scenarios can be materialized in the short to medium term to offer the end user a 3D experience. In this paper we identify these scenarios, and analyze the technology-associated trends in the whole end-to-end chain, from content capture to content display, including coding and representation formats, and available delivery standards.Taking an Internet Protocol (IP)-based scenario as the starting point, we propose an architecture for the delivery of 3D content, identifying the new functionalities required for managing 3D content. Moreover, 3D content information is organized and aggregated in different ways, depending on the technology involved in the implementation of each particular scenario. Thus, the end user experience can be improved by taking advantage of the new solutions made available through content-aware processing appliances and services hosted at either the head end or in the delivery network. Such solutions have already been successfully demonstrated in two-dimensional (2D) video [27].In this sense, the characterization of the quality of experience (QoE) of the end user depends highly on the particular technologies adopted for the representation, coding, and delivery of 3D content. In this paper, we also present the results of preliminary work on how losses during content compression or content distribution impact user perception. 3D ScenariosProviding the depth perception necessary to enhance the audiovisual content experience is a pressing issue in both the entertainment industry and the There is no unique way to fulfill th...

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Section: Unequal Loss Protectionmentioning

confidence: 99%

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Cubero¹,

Gutiérrez

Pérez³

et al. 2012

Bell Labs Tech. J.

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“…In recent years, much research [5], [6], [7], [8], [9], [10], [11] has been performed on protecting different categories of layered video coding using an UEP scheme. For example, the paper [6] describes the MPEG-4 fine grange scalable (FGS) compressed video and adopts the unequal protection strategy by using rate-distortion information in each layer, which only considers the quality dimension in the SVC stream.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the paper [6] describes the MPEG-4 fine grange scalable (FGS) compressed video and adopts the unequal protection strategy by using rate-distortion information in each layer, which only considers the quality dimension in the SVC stream. In [8] and [9], the different importance between the temporal dimension and the quality dimension in the SVC stream is considered and then the two-dimensional protection scheme which uses the ReedSolomon (RS) code to protect the video stream is proposed. However, the computational load of the distortion model in [8] is too high to compute in practice.…”

Section: Introductionmentioning

confidence: 99%

“…However, the computational load of the distortion model in [8] is too high to compute in practice. And the distortion model and the performance metric proposed in [9] do not fully represent the distortion caused by loss of temporal layers and quality layers.…”

Section: Introductionmentioning

confidence: 99%

“…And then the optimal FEC assignment scheme can be formulated as the minimum distortion model solution problem under restrictive conditions of the available bandwidth and the different importance between temporal layers and quality layers in SVC stream. However, the distortion model and the performance metric in [9] are too simple and cannot fully indicate the reasons of drift distortion caused by the quality layers loss and error concealment brought by temporal layers loss, respectively. To overcome the aforementioned shortcomings, we present a model that considers the overall distortion caused by the enhancement layers truncation, propagation of drift and error concealment to accurately approximate the expected distortion in each frame of one GOP.…”

Section: Introductionmentioning

confidence: 99%

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Layer-Aware Unequal Error Protection for Scalable H.264 Video Robust Transmission over Packet Lossy Networks

Sun

Zhang

Tang

et al. 2011

2011 14th International Conference on Network-Based Information Systems

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Abstract-The Scalable Video Coding (SVC) amendment of the H.264/AVC standard is an up-to-date video compression standard. The various scalable layers have different contribution to the quality of the reconstructed video sequence due to the use of hierarchical prediction and the drift propagation. This paper proposes a novel trapezoidal-unequal error protection (UEP) scheme which significantly reduces the redundancy but rarely decreases the performance by taking into account the characteristics of the video coding and the adoptive forward error correction (FEC) sufficiently. In order to optimally distribute FEC codes, the paper then proposes a layer-aware distortion model to accurately estimate the decrement of video quality caused by the loss of quality enhancement layers, drift propagation and error concealment in the scalable H.264/AVC video. Experimental results show that the proposed trapezoidal UEP scheme has better robustness and in the meanwhile reduces the coding redundancy greatly in different channel circumstance compared with the traditional UEP scheme.Index Terms-channel coding, forward error correction, unequal error protection, scalable video coding

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Advanced Diversity Over Mimo Channels

Huang

Hanzo²

2011

Millimeter Wave Communication Systems

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Layer-weighted unequal error protection for scalable video coding extension of H.264/AVC

Cited by 73 publications

References 14 publications

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Providing 3D Video Services: The Challenge From 2D to 3DTV Quality of Experience

Layer-Aware Unequal Error Protection for Scalable H.264 Video Robust Transmission over Packet Lossy Networks

Advanced Diversity Over Mimo Channels

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