Error Concealment for Scalable Motion-Compensated Subband/Wavelet Video Coders

Bajić, Ivan V.; Woods, John W.

doi:10.1109/tcsvt.2006.888838

Cited by 5 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This can be solved by using a receiver-side buffer. The requirement of such a buffer is common in today's video streaming systems like Microsoft Windows Media Player 9, which has a default buffer setting to five seconds [22].…”

Section: Further Improvement On Motion Parameters Recoverymentioning

confidence: 99%

Concealment of Whole-Picture Loss in Hierarchical B-Picture Scalable Video Coding

Zhao

Gao

2009

IEEE Trans. Multimedia

View full text Add to dashboard Cite

Abstract-H.264/AVC scalable video coding (H.264/AVC SVC), as the scalable extension of H.264/AVC, offers the flexible adaptivity in terms of spatial, temporal and SNR scalabilities for the generated bitstream. However, such compressed video still suffers from the bad playback quality when packet loss occurs over unreliable networks. In this paper, we present an error concealment algorithm to tackle the whole-picture loss problem in H.264/AVC SVC when hierarchical B-picture coding is used to support temporal scalability. In the proposed algorithm, by taking advantage of the temporal relationship among the adjacent video pictures, the motion information of the lost picture is derived simply and efficiently based on the principle of temporal direct mode. Utilizing the derived motion information, the lost picture is concealed by performing motion compensation on the correctly received temporally previous and future video pictures. The experimental results demonstrate that as a post-processing tool, the proposed error concealment algorithm is able to significantly improve both the objective and subjective qualities of the decoded video pictures in the presence of packet losses when compared to the error concealment algorithm used in H.264/AVC SVC reference software. The proposed method can also be applied to H.264/AVC with hierarchical B-picture coding for error concealment.

show abstract

Section: Further Improvement On Motion Parameters Recoverymentioning

confidence: 99%

Concealment of Whole-Picture Loss in Hierarchical B-Picture Scalable Video Coding

Zhao

Gao

2009

IEEE Trans. Multimedia

View full text Add to dashboard Cite

show abstract

“…To the best of our knowledge, there has been only a few works that take advantage of the receiver-side buffer to enhance the concealment process by noncausal processing [2,3]. The proposed algorithm works sequentially in time-forward direction, but it uses noncausal information during error concealment.…”

Section: Proposed Noncausal Whole-frame Concealmentmentioning

confidence: 99%

A Novel Noncausal Whole-Frame Concealment Algorithm for Video Streaming

Amiri

Bajić

2008

2008 Tenth IEEE International Symposium on Multimedia

Self Cite

View full text Add to dashboard Cite

Error concealment is very important for video communication as an application-layer error control mechanism which can be used independently of the underlying communication infrastructure. In this paper, we propose a noncausal whole-frame concealment algorithm to conceal lost frames in the video sequence. The proposed algorithm consist of two parts. First, the preliminary version of the lost frame is generated using motion vectors from three different sources: from previous frames, upcoming frames, and, in case of RPS-NACK, the reset frame as well. Then, to fill the remaining empty areas, the algorithm uses spatiotemporal boundary matching. Experimental results show that the complexity of the proposed algorithm is low enough to run in real time, while achieving higher PSNR and providing better visual quality than the competing state-of-the-art method.

show abstract

“…tot is the total energy spent on transmission of packets from GOP i, as in (6), and E D i R is the expected distortion in GOP i given by (5). As in the previous subsection, the first step is to find intermediate power levels and M i n that minimizes the total transmission energy while maintaining loss probabilities found in the previous step.…”

Section: For the Parameters Inmentioning

confidence: 99%

Efficient Cross-Layer Error Control for Wireless Video Multicast

Bajić

2007

IEEE Trans. on Broadcast.

Self Cite

View full text Add to dashboard Cite

In this paper we develop cross-layer schemes combining source rate selection, power management, and error control for wireless multicast of SNR scalable video. In particular, two error control schemes are analyzed and compared. The first one, type 2 hybrid ARQ/FEC, is based on incremental redundancy chosen to recover losses and provide the required level of video quality. The second one, called noncausal error control, relies on error concealment from future video data whose quality is adaptively adjusted to bring the video quality up to the desired level for all users. Our results indicate that noncausal error control can be significantly more efficient than type 2 hybrid ARQ/FEC. Index TermsWireless video multicast, error control, error concealment, power management.

show abstract

Error Concealment for Scalable Motion-Compensated Subband/Wavelet Video Coders

Cited by 5 publications

References 12 publications

Concealment of Whole-Picture Loss in Hierarchical B-Picture Scalable Video Coding

Concealment of Whole-Picture Loss in Hierarchical B-Picture Scalable Video Coding

A Novel Noncausal Whole-Frame Concealment Algorithm for Video Streaming

Efficient Cross-Layer Error Control for Wireless Video Multicast

Contact Info

Product

Resources

About