Efficient HDTV and 3DTV Services over DVB-T2 using multiple PLPs with layered media

Hellge, Cornelius; Wiegand, Thomas; Torre, Estibaliz Guinea; Gómez-Barquero, David; Schierl, Thomas

doi:10.1109/mcom.2013.6619569

Cited by 14 publications

(7 citation statements)

References 9 publications

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“…The combination of a layered video codec with multiple PLPs presents a great potential to achieve a very efficient and flexible provisioning of mobile TV services. By transmitting a base layer using a heavily protected PLP and an enhancement layer in one PLP with moderate/high spectral efficiency, it is possible to costefficiently provide a reduced quality service with a very robust transmission, while providing a standard/high quality for users in good reception conditions [14]. The benefits of using layered video compared to simulcasting the same content with different video qualities in different PLPs with different robustness are twofold.…”

Section: Introductionmentioning

confidence: 99%

DVB-NGH: The Next Generation of Digital Broadcast Services to Handheld Devices

Gómez-Barquero

Douillard

Moss

et al. 2014

IEEE Trans. on Broadcast.

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FOBTV-13-01 1Abstract-This paper reviews the main technical solutions adopted by the next generation mobile broadcasting standard DVB-NGH, the handheld evolution of the second generation digital terrestrial TV standard DVB-T2. The main new technical elements introduced with respect to DVB-T2 are: layered video coding with multiple physical layer pipes, time-frequency slicing, full support of an IP transport layer with a dedicated protocol stack, header compression mechanisms for both IP and MPEG-2 TS packets, new LDPC coding rates for the data path (down to 1/5), non-uniform constellations for 64QAM and 256QAM, fourdimensional rotated constellations for QPSK, improved time interleaving in terms of zapping time, end-to-end latency and memory consumption, improved physical layer signaling in terms of robustness, capacity and overhead, a novel distributed MISO transmit diversity scheme for SFNs, and efficient provisioning of local content in SFNs. All these technological solutions, together with the high performance of DVB-T2, make DVB-NGH a real next-generation mobile multimedia broadcasting technology. In fact, DVB-NGH can be regarded the first third-generation broadcasting system because it allows for the possibility of using multiple input multiple output MIMO antenna schemes to overcome the Shannon limit of single antenna wireless communications. Furthermore, DVB-NGH also allows the deployment of an optional satellite component forming a hybrid terrestrial-satellite network topology to improve the coverage in rural areas where the installation of terrestrial networks could be uneconomical. to Handheld) [4], were developed to support large scale consumption of mass multimedia services such as mobile television (TV). However, the adoption of mobile TV services did not fulfill the initial expectations due to the lack of a successful business model and the high costs associated to the deployment of new mobile broadcasting networks. Today, a new generation of mobile broadcasting technologies is emerging due to the continuously increasing requirements and expectations of both users and operators, incorporating the latest advances in wireless communications which provide significant capacity and coverage performance improvements compared to first generation mobile broadcast systems. IndexDVB-NGH (Next Generation Handheld) [5] is the handheld evolution of DVB-T2 (Terrestrial 2nd Generation) [6], the most advanced digital terrestrial TV (DTT) technology in the world, offering more robustness, flexibility and at least 50% more spectrum efficiency than any other technology [7].DVB-NGH was created with the objective of becoming the reference mobile multimedia broadcasting standard. However, DVB-NGH not only succeeds significantly outperforming existing mobile broadcasting technologies in terms of capacity and coverage, but also optimizing DVB-T2 in many aspects. Furthermore, DVB-NGH is the first broadcasting system to incorporate Multiple-Input Multiple-Output (MIMO) antenna schemes as the key technology to overcome the S...

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Section: Introductionmentioning

confidence: 99%

DVB-NGH: The Next Generation of Digital Broadcast Services to Handheld Devices

Gómez-Barquero

Douillard

Moss

et al. 2014

IEEE Trans. on Broadcast.

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“…Consequently, the next logical step is to transmit 3DVs over the latest transmission channels, such as the Digital Video Broadcasting (DVB) and Long Term Evaluation (LTE) networks, for consumers' consumption. This standard is also adequate since it provides backward compatibility with current HD-video coding and transmission systems using H.264/AVC [6]; allowing consumers using new devices to view 3D media in 3D, as intended [7], and those using old devices to still view the same content in 2D.…”

Section: Introductionmentioning

confidence: 99%

Reducing 3D video coding complexity through more efficient disparity estimation

Micallef

Debono

Farrugia

2014

IEEE Trans. Consumer Electron.

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3D video coding for transmission exploits the Disparity Estimation (DE) to remove the inter-view redundancies present within both the texture and the depth map multi-view videos. Good estimation accuracy can be achieved by partitioning the macro-block into smaller subblocks partitions. However, the DE process must be performed on each individual sub-block to determine the optimal mode and their disparity vectors, in terms of ratedistortion efficiency. This vector estimation process is heavy on computational resources, thus, the coding computational cost becomes proportional to the number of search points and the inter-view modes tested during the rate-distortion optimization. In this paper, a solution that exploits the available depth map data, together with the multi-view geometry, is proposed to identify a better DE search area; such that it allows a reduction in its search points. It also exploits the number of different depth levels present within the current macro-block to determine which modes can be used for DE to further reduce its computations. Simulation results demonstrate that this can save up to 95% of the encoding time, with little influence on the coding efficiency of the texture and the depth map multi-view video coding. This makes 3D video coding more practical for any consumer devices, which tend to have limited computational power.peer-reviewe

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“…The MVC is currently the best encoding option for such broadcasting scenario since it offers a reduced bandwidth for 3DVs while still keeping its backwards compatibility with current 2D video receivers. Moreover, its bit-stream is compatible with many transmission channels, like all the second generation DVB standards [8]. Nevertheless, the high computational costs of H.264-MVC encoders require expensive systems with a huge computational power, to comply with the stringent low latency transmission requirements.…”

Section: Introductionmentioning

confidence: 99%

Low complexity disparity estimation for immersive 3D video transmission

Micallef

Debono

Farrugia

2013

2013 IEEE International Conference on Communications Workshops (ICC)

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This research work was partially funded by the Strategic Educational Pathways Scholarship Scheme (STEPS-Malta) and by European Union - European Social Fund (ESF 1.25).Bandwidth-limited channels demand the transmission of the per-pixel depth maps with the texture data to provide immersive 3D video services that allow arbitrary 3D viewpoint reconstruction. This auxiliary depth data offers geometric information, which together with the multi-view and epipolar geometries, can be exploited during 3D video coding to calculate geometric positions for the search areas of disparity estimation. These positions represent a more accurate estimate match to compensate the current macro-block from than those provided by the median adopted by the H.264/MVC standard. The result is smaller search areas that reduce the encoder's computational requirement. In this work, we exploit this fact together with the largest depth variation within the macro-block to encode, to calculate and adaptively adjust these areas along the epipolar lines. The proposed solution achieves a speedup gain of up-to 32 times over the original disparity estimation, with negligible influence on the rate-distortion performance of 3D video coding. This highly reduces the computational cost of the H.264/MVC encoder and eases its need to be implemented on highly expensive systems that are otherwise necessary to meets the stringent latency requirement of broadcast transmissions. Moreover, it provides similar coding efficiencies required for such scenarios.peer-reviewe

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Efficient HDTV and 3DTV Services over DVB-T2 using multiple PLPs with layered media

Abstract: Abstract-The high bitrates of High

Cited by 14 publications

References 9 publications

DVB-NGH: The Next Generation of Digital Broadcast Services to Handheld Devices

DVB-NGH: The Next Generation of Digital Broadcast Services to Handheld Devices

Reducing 3D video coding complexity through more efficient disparity estimation

Low complexity disparity estimation for immersive 3D video transmission

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