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multiple description Scalable coding for Video Transmission over Unreliable Networks

9th SAMOS International Workshop

作者： Choupani, Roya Wong, Stephan Tolun, Mehmet R. TUDelft Dept Comp Engn Delft Netherlands Cankaya Univ Comp Engn Dept Ankara Turkey

ISBN: (纸本)9783642031373

Developing real time multimedia applications for best effort networks such as the Internet requires prohibitions against jitter delay and frame loss. This problem is further complicated in wireless networks as the rate of frame corruption or loss is higher in wireless networks while they generally have lower data rates compared to wired networks. On the other hand, variations of the bandwidth and the receiving device characteristics require data rate adaptation capability of the coding method. multiple description coding (MDC) methods are used to solve the jitter delay and frame loss problems by making the transmitted data more error resilient, however, this results in reduced data rate because of the added overhead. MDC methods do not address the bandwidth variation and receiver characteristics differences. In this paper a new method based on integrating MDC and the scalable video coding extension of H.264 standard is proposed. Our method can handle both jitter delay and frame loss, and data rate adaptation problems. Our method utilizes motion compensating scheme and, therefore, is compatible with the current video coding standards such as MPEG-4 and H.264. Based on the simulated network conditions, our method shows promising results and we have achieved tip to 36dB for average Y-PSNR.

关键词： Scalable Video coding multiple description coding Multimedia Transmission

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multiple description Image coding Using Dual-Tree Discrete Wavelet Transform

Multiple Description Image Coding Using Dual-Tree Discrete W...

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International Symposium on Intelligent Signal Processing and Communication Systems

作者： Li, Li Cai, Canhui Huaqiao Univ Sch Informat Sci & Engn Quanzhou 362021 Fujian Peoples R China

ISBN: (纸本)9781424450152

A novel multiple description image coding scheme, called dual-tree discrete wavelet transform based multiple description image coding is proposed. First, the 2D dual-tree discrete wavelet transform is applied to an image to produce 2 wavelet trees with complementary information. A noise-shaping algorithm is then employed to remove the redundancies of both trees and form the basic parts of two descriptions. A side noise shaping algorithm is proposed to draw the supplementary information for side decoding from the other tree. Basic information from one tree and supplementary from the other tree are grouped to form a description. Two descriptions are then dispatched from different channels. Because every description includes critical information of the picture, the reconstructed image from any single channel can have acceptable fidelity. The reconstructed image is of much better quality if both channels are available. Simulation results have demonstrated the performance of the proposed algorithm.

关键词： multiple description coding dual-tree complex wavelet transform noise shaping

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A FAST DECODER FOR COMPRESSED SENSING BASED multiple description IMAGE coding

A FAST DECODER FOR COMPRESSED SENSING BASED MULTIPLE DESCRIP...

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16th IEEE International Conference on Image Processing

作者： Hyder, Md Mashud Mahata, Kaushik Univ Newcastle Sch Elect Engn & Comp Sci Callaghan NSW 2308 Australia

ISBN: (纸本)9781424456536

multiple description coding (MDC) offers an elegant approach to data transmission over lossy packet-based networks. This paper proposes an MDC decoder for Compressed Sensing (CS) based MDC. Our decoder minimizes l(0) norm of the total variation of the image in a recursive manner, making it effective when different descriptions experience different time delays in the network. The proposed approach brings in a significant performance improvement in reconstruction accuracy and reconstruction time.

关键词： multiple description coding compressed sensing minimization image coding

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A Novel multiple-description Image coding on Wavelet

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10th Pacific Rim Conference on Multimedia

作者： Shi, Yunhui Yin, Baocai Kong, Dehui Lu, Tailong Beijing Univ Technol Dept Comp Sci & Technol Beijing Peoples R China

ISBN: (纸本)9783642104664

multiple description coding (MDC) is a way of trading off coding gain with robustness to channel errors This paper presents a novel and efficient two-description image coding scheme in wavelet domain Here, the two-layered MDC method is adopted based on the feature of wavelet coefficients Firstly, the low-frequeney wavelet coefficients are partitioned into two new correlated groups as two basic descriptions with pairwise correlating transform (PCT) Secondly, we can get two enhanced descriptions from the high-frequency wavelet subbands of the highest-level decomposition by adaptive down-sampling Finally. four template operators are adopted to detect the texture direction of high-frequeney subbands, and we use the Wavelet Domain In for tree Reconstruction (WDIR) to conceal coefficients loss in Wavelet-Trees with the texture direction when one enhanced description lost during transmission Experimental results demonstrate that the proposed MDC scheme can achieve good coding performance

关键词： multiple description coding pairwise correlating transform adaptive down-sampling Wavelet Domain Interpolation for tree Reconstruction

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multiple description ANALOG JOINT SOURCE-CHANNEL coding FOR PARALLEL CHANNELS WITH SIDE INFORMATION

MULTIPLE DESCRIPTION ANALOG JOINT SOURCE-CHANNEL CODING FOR ...

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20th European Signal Processing Conference (EUSIPCO)

作者： Alustiza, Iker Erdozain, Aitor Crespo, Pedro Beferull-Lozano, Baltasar Un Navarra Tecnun Manuel de Lardizabal 15 San Sebastian 20018 Spain Univ Valencia Paterna Inst Robot Tecnol Informac & Commun Valencia 46980 Spain

ISBN: (纸本)9781467310680

With the purpose of reducing the coding complexity and delay of the separation-based schemes, an analog joint source-channel coding scheme is proposed for transmissions through parallel AWGN channels with side information at the receiver. This scheme divides the bidimensional source space into a set of hexagons and transmits the relative position of the source vectors inside the corresponding hexagon by using two complimentary analog mappings. The results are satisfactory, specially taking into consideration the low complexity and delay of the proposed scheme.

关键词： Joint source-channel coding analog mappings side information multiple description coding

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OPTIMIZED SCALABLE multiple-description coding AND FEC-BASED JOINT SOURCE-CHANNEL coding: A PERFORMANCE COMPARISON

OPTIMIZED SCALABLE MULTIPLE-DESCRIPTION CODING AND FEC-BASED...

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10th International Workshop on Image Analysis for Multimedia Interactive Services

作者： Stoufs, Maryse R. Munteanu, Adrian Barbarien, Joeri Cornelis, Jan Schelkens, Peter IBBT Dept Elect & Informat ETRO B-1050 Brussels Belgium

ISBN: (纸本)9781424436095

This paper proposes an optimized, low-complexity methodology that combines Joint Source-Channel coding (JSCC) based on Forward Error Correction (FEC) coding and scalable multiple description coding (MDC) mechanisms for error-resilient data transmission over error-prone packet-based channels. Additionally, we report a comparative theoretical analysis between (i) MDC, and FEC-based scalable JSCC for sources encoded using (ii) Single description coding (SDC) and (iii) MDC. Our analysis assumes ideal source coders that can achieve the theoretical performance bounds for a Gaussian source. This source model is independent of the actual implementation and therefore allows to draw conclusions on the theoretical performance of these approaches and to determine which methodology should be employed in specific transmission scenarios.

关键词： Scalable source coding multiple description coding forward error correction error resilience

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Self-organizing maps for the design of multiple description vector quantizers

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NEUROCOMPUTING 2013年 122卷 298-309页

作者： Poggi, Giovanni Cozzolino, Davide Verdoliva, Luisa Univ Naples Federico II Dept Elect Engn & Informat Technol Naples Italy

multiple description coding is an appealing tool to guarantee graceful signal degradation in the presence of unreliable channels. While the principles of multiple description scalar quantization are well-understood and solid guidelines exist to design effective systems, the same does not hold for vector quantization, especially at low bit-rates, where burdensome and unsatisfactory design techniques discourage its use altogether in applications. In this work we use the self-organizing maps to design multiple description VQ codebooks. The proposed algorithm is flexible, fast and effective: it deals easily with a large variety of situations, including the case of more than two descriptions, with a computational complexity that remains fully affordable even for large codebooks, and a performance comparable to that of reference techniques. A thorough experimental analysis, conducted in a wide range of operating conditions, proves the proposed technique to perform on par with well-known reference methods based on greedy optimization, but with a much lower computational burden. In addition, the resulting codebook can be itself optimized, thus providing even better performance. All experiments are fully reproducible, with all software and data available online for the interested researchers. (C) 2013 Elsevier B.V. All rights reserved.

关键词： Self-organizing maps Vector quantization multiple description coding Reproducible research

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Joint playout and FEC control for multi-stream voice over IP networks

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JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 2013年第2期36卷 224-235页

作者： Wu, Chun-Feng Chiang, Yuan-Chuan Chang, Wen-Whei Natl Chiao Tung Univ Inst Commun Engn Hsinchu Taiwan Natl Hsinchu Univ Educ Dept Special Educ Hsinchu Taiwan

Packet loss and delay are the major network impairments for transporting real-time voice over internet protocol (IP) networks. In the proposed system, multiple descriptions of the speech are used to take advantage of packet path diversity. A new objective method is presented for predicting the perceived quality of multi-stream voice transmission. Also proposed is a joint playout buffer and forward error control (FEC) adjustment scheme that maximizes the perceived speech quality via delay-loss trading. Experimental results showed that the proposed multi-stream voice transmission scheme achieves significant reductions in delay-and packet-loss rates as well as improved speech quality.

关键词： playout buffer forward error control multiple description coding voice quality prediction model

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Joint energy-distortion aware algorithms for cooperative video streaming over LTE networks

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SIGNAL PROCESSING-IMAGE COMMUNICATION 2013年第9期28卷 1114-1131页

作者： Yaacoub, Elias Dawy, Zaher Sharafeddine, Sanaa Abu-Dayya, Adnan Qatar Sci & Technol Pk QMIC Doha Qatar Amer Univ Beirut Dept Elect & Comp Engn Beirut Lebanon LAU Dept Comp Sci & Math Beirut Lebanon

Real-time video streaming over long-term evolution (LTE) networks is investigated in the presence of mobile-to-mobile collaboration. A multi-objective problem for energy and distortion minimization is formulated and an energy-efficient, quality of service (QoS) aware suboptimal approach is presented for collaborative video transmission. In the proposed approach, mobiles are grouped into collaborative clusters using a low-complexity clustering algorithm. In each cluster, collaboration is implemented by having a cluster head send the content to other cluster members using a short-range wireless communications technology. The cluster heads receive the data on the long-range LTE links, either via unicasting or multicasting. LTE scheduling is taken into account on the long range transmissions. Videos with single description coding (SDC), multiple description coding (MDC), and scalable video coding (SVC) are considered. Results show that the proposed approach leads to significant energy savings and enhanced QoS compared to the non-collaborative scenario. Furthermore, MDC is shown to outperform SDC in terms of QoS, at the cost of a slight increase in energy consumption. The same conclusions were reached with respect to SVC compared to single layer coding. (c) 2013 Elsevier B.V. All rights reserved.

关键词： Video streaming multiple description coding Scalable video coding Cooperative communications Energy efficiency LTE

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Relay-Assisted Rateless Layered multiple description Video Delivery

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IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 2013年第8期31卷 1629-1637页

作者： Nazir, Sajid Stankovic, Vladimir Attar, Hani Stankovic, Lina Cheng, Samuel Univ Strathclyde Dept Elect & Elect Engn Glasgow G1 1XW Lanark Scotland Univ Oklahoma Sch Elect & Comp Engn Tulsa OK 74135 USA

multiple description coding (MDC) has been proposed as a possible solution to real-time video delivery over relay-assisted wireless networks to exploit path diversity. In this paper, we study layered multiple description video over relay-assisted mobile networks, such as LTE-A, and develop a framework that routes packets to different relays based on source-channel-relay parameters. The proposed system comprises, besides layered MDC, (i) application-layer forward error correction via Random linear codes (RLC) that are very suitable in the relaying scenarios, due to their rateless nature, (ii) unequal error protection (UEP), using the recently proposed expanding window technique, that relies on probabilistic scheduling of layered packets. We generate layered multiple descriptions using data slicing and data partitioning features of H. 264/AVC and conduct simulations by modelling a two-relay LTE-A setup with the finite state Markov chain model. Simulation results show benefits of relaying with optimized routing and UEP.

关键词： Multipath video wireless relaying multiple description coding

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