Error resilience and concealment for Multiview video coding

Ibrahim, A. B.; Sadka, A.H.

doi:10.1109/bmsb.2014.6873463

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…So, errors might propagate to the contiguous views and likewise to the next frames leading to impecunious 3DV quality. There are different techniques that may be utilized to reduce the packet losses effect before 3DV transmission . In the literature works, the Automatic Repeat Request (ARQ) and Forward Error Correction (FEC) methods have been introduced.…”

Section: Introductionmentioning

confidence: 99%

“…There are different techniques that may be utilized to reduce the packet losses effect before 3DV transmission. [12][13][14] In the literature works, [15][16][17] the Automatic Repeat Request (ARQ) and Forward Error Correction (FEC) methods have been introduced. Unfortunately, they introduce more latency and raise the required transmission bit-rate, because it is impossible to re-transmit the whole lost or corrupted frames taking into consideration the restricted bandwidth and the delay limitations on real-time video transmission.…”

Section: Introductionmentioning

confidence: 99%

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Performance evaluation of enhanced error correction algorithms for efficient wireless 3D video communication systems

El‐Shafai

El‐Rabaie

El-Halawany

et al. 2017

Int J Communication

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Summary In the Three‐Dimensional Multi‐View Video (3D MVV) coding prediction structure, the coded bit‐streams may be dropped down due to error transmissions. So, it is compulsory to recover the corrupted Macro‐Blocks (MBs) at the decoder utilizing efficient Error Concealment (EC) post‐processing techniques. The EC methods exploit the temporal, inter‐view, and spatial matching among 3D MVV views and frames without any alterations in the encoder software or hardware or in the transmission rate. They retrieve the Disparity Vectors (DVs) and Motion Vectors (MVs) of the erroneous MBs. To enhance the received 3D MVV quality, we suggest several optimized schemes to reconstruct the lost and erroneous MBs of inter‐encoded and intra‐encoded frames. A hybrid method combining the Circular Scan Order Interpolation Algorithm (CSOIA) and Partitioning Motion Compensation Algorithm (PMCA) is proposed for intra‐frame EC. For inter‐corrupted MBs, a hybrid method comprising Directional Textural Motion Coherence Algorithm (DTMCA) and Directional Interpolation Error Concealment Algorithm (DIECA) is suggested. Experimental outcomes on several 3D MVV frames demonstrate that the suggested EC algorithms have more robustness to both heavily random and slice losses. They objectively and subjectively work better than the state‐of‐the‐art EC techniques. The proposed work achieves high 3D MVV quality with an improved average Peak Signal‐to‐Noise Ratio (PSNR) gain up to 2.45 to 4.55 dB compared with traditional EC algorithms at Packet Loss Rates (PLRs) of 40%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance evaluation of enhanced error correction algorithms for efficient wireless 3D video communication systems

El‐Shafai

El‐Rabaie

El-Halawany

et al. 2017

Int J Communication

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“…n Hs (7) where H is the N×N channel matrix and n is the noise vector of length N. The vector R' is fed to the data detector in order to get a hard or soft estimate of the transmitted data. The data detection needs to begin with an equalizer.…”

Section: S mentioning

confidence: 99%

“…The highly compressed 3DV transmission over wireless networks is always subject to random and burst errors [4][5]. There is a variety of techniques that can be utilized to limit the impact of packet losses incurred in the transmission process [6][7]. In the literature [8][9], the Forward Error Correction (FEC) and the Automatic Repeated Request (ARQ) techniques have been introduced.…”

Section: Introductionmentioning

confidence: 99%

Efficient DWT-based SVD Watermarked 3D Video Transmission over MC-CDMA Wireless Channel

El-Bakary

El‐Shafai

El-Rabaie

et al. 2021

Preprint

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Three-Dimensional Video (3DV) communication through wireless channels suffers from bit-streams losses. Therefore, the efficient performance of 3DV transmission techniques over wireless networks is a considerable hot research topic. A high compression ratio must be introduced to meet future bandwidth restriction for optimized 3DV transmission. Unfortunately, the compressed 3DV bit-streams are more sensitive and vulnerable to packet losses. In this paper, we propose the application of chaotic Baker interleaving with equalization and convolution coding for efficient Discrete Wavelet Transform (DWT)-based Singular Value Decomposition (SVD) watermarked 3DV transmission over a Multi-Carrier Code Division Multiple Accesses (MC-CDMA) wireless channel. Firstly, the compressed 3DV frames are watermarking using the DWT+SVD watermarking process. After that, chaotic interleaving is applied to minimize the channel effects on the transported bit-streams and it also adds an encryption to the transported 3DV frames. To test the performance of the proposed hybrid techniques; several experiments on different (DWT+SVD) watermarked 3DV frames have been tested. The experimental results confirm that the received watermarked 3DV frames still have high Peak Signal-to-Noise Ratios (PSNRs) and efficient watermark extraction is possible.

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