Content-Adaptive Packetization and Streaming of Wavelet Video over IP Networks

Ho, Chien-Peng; Tsai, Chun-Jen

doi:10.1186/1687-5281-2007-045201

Cited by 5 publications

(7 citation statements)

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“…There has been a lot of research around the packet level FEC protection in order to against the packet loss [49]- [51]. In this paper, an advanced packet level LDPC-triangle codec [52], which recently is adopted as standard of Internet Engineering Task Force (IETF), is used to protect the generated WZ over packet erasure channel.…”

Section: Packet Level Ldpc Codec Protectionmentioning

confidence: 99%

Error-Resilient Scheme for Wavelet Video Codec Using Automatic ROI Detection and Wyner-Ziv Coding Over Packet Erasure Channel

Xue

Loo

Cosmas

et al. 2010

IEEE Trans. on Broadcast.

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???This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder." ???Copyright IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.???The error-resilient for video transmission over the Internet in which regarded as the packet erasure channel is always a tough task and has gained lots of attentions. The main contradictory problem lies between error-resilient and bandwidth usage. Additional redundant data has to be added to achieve robust transmission which leads to huge bandwidth usage. In this paper, an error-resilient scheme called Wyner-Ziv Error-Resilient (WZER) based on a receiver driven layered Wyner-Ziv (WZ) coding framework is proposed. The WZER purposely emphasizes on the protection of the Region of Interest (ROI) area in the frame thus to achieve the better tradeoff between the bandwidth usage and error-resilience. WZER is designed to work for the scenario of wavelet based video coding over packet erasure channel, where several techniques including automatic ROI detection, ROI mask generation, Rate distortion optimization (RDO) quantization, WZ coding with layer design, and packet level Low Density Parity Check (LDPC) code are used. The performances of the proposed WZER are simulated based on average PSNR of luminance, perceptual reconstruction and bandwidth usage and compared with normal Forward Error Correction (FEC) full protection scheme and no protection scheme. The results show the advantages of the proposed WZER over traditional FEC protection, especially in the aspects of the recovery of the subject area and bandwidth efficiency

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Section: Packet Level Ldpc Codec Protectionmentioning

confidence: 99%

Error-Resilient Scheme for Wavelet Video Codec Using Automatic ROI Detection and Wyner-Ziv Coding Over Packet Erasure Channel

Xue

Loo

Cosmas

et al. 2010

IEEE Trans. on Broadcast.

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show abstract

“…However, previous FEC techniques only allow for coarse layer-based unequal error protection [16][17][18], or unequal protection between different types of syntax elements [19,20]. Ho and Tsai [12] propose a new method for fine-level adaptive FEC protection of wavelet coefficients. In [12], the R-D side information of wavelet codecs is used to calculate the degree of importance of the wavelet coefficients given estimated packet loss rate of the channel.…”

Section: R-d Side Information and Content-adaptive Fec Protectionmentioning

confidence: 99%

“…Ho and Tsai [12] propose a new method for fine-level adaptive FEC protection of wavelet coefficients. In [12], the R-D side information of wavelet codecs is used to calculate the degree of importance of the wavelet coefficients given estimated packet loss rate of the channel. The granularity of the protection level can be fine-tuned for different wavelet video coefficient coding passes.…”

Section: R-d Side Information and Content-adaptive Fec Protectionmentioning

confidence: 99%

“…The application of the rate distortion theory [21] to video codecs is investigated in many literatures [12,19,20]. Some literatures [8,15] apply the function to embedded wavelet coder and make a little empirical adjustment on the parameters.…”

Section: Parameterized Coding Block-level R-d Modelsmentioning

confidence: 99%

“…In addition, fixed degree of FEC protection consumes considerable overhead which is wasted if there are less channel errors than estimated. Ho and Tsai [12] proposed a content-adaptive FEC protection/packetization mechanism of wavelet video data, but multiple adaptations of FEC codes are not considered because transmission of the side information was a nonnegligible overhead.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multiple Adaptations and Content-Adaptive FEC Using Parameterized RD Model for Embedded Wavelet Video

Tsai

2007

EURASIP J. Adv. Signal Process.

Self Cite

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Scalable video coding (SVC) has been an active research topic for the past decade. In the past, most SVC technologies were based on a coarse-granularity scalable model which puts many scalability constraints on the encoded bitstreams. As a result, the application scenario of adapting a preencoded bitstream multiple times along the distribution chain has not been seriously investigated before. In this paper, a model-based multiple-adaptation framework based on a wavelet video codec, MC-EZBC, is proposed. The proposed technology allows multiple adaptations on both the video data and the content-adaptive FEC protection codes. For multiple adaptations of video data, rate-distortion information must be embedded within the video bitstream in order to allow rate-distortion optimized operations for each adaptation. Experimental results show that the proposed method reduces the amount of side information by more than 50% on average when compared to the existing technique. It also reduces the number of iterations required to perform the tier-2 entropy coding by more than 64% on average. In addition, due to the nondiscrete nature of the rate-distortion model, the proposed framework also enables multiple adaptations of content-adaptive FEC protection scheme for more flexible error-resilient transmission of bitstreams.

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Cluster-based replication for P2P-based video-on-demand service

Lee

2010

2010 International Conference on Electronics and Information Engineering

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Content-Adaptive Packetization and Streaming of Wavelet Video over IP Networks

Cited by 5 publications

References 0 publications

Error-Resilient Scheme for Wavelet Video Codec Using Automatic ROI Detection and Wyner-Ziv Coding Over Packet Erasure Channel

Error-Resilient Scheme for Wavelet Video Codec Using Automatic ROI Detection and Wyner-Ziv Coding Over Packet Erasure Channel

Multiple Adaptations and Content-Adaptive FEC Using Parameterized RD Model for Embedded Wavelet Video

Cluster-based replication for P2P-based video-on-demand service

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