2,555 Hits in 2.7 sec

An Efficient Adaptive Boundary Matching Algorithm for Video Error Concealment

S Marvasti-Zadeh, H Ghanei-Yakhdan, S Kasaei
2014 Iranian Journal of Electrical & Electronic Engineering   unpublished
Error concealment techniques try to conceal the received data in the decoder side. In this paper, an adaptive boundary matching algorithm is presented for recovering the damaged Motion Vectors (MVs).  ...  temporal boundary matching, outer boundary matching, and dynamical temporal error concealment algorithm, respectively.  ...  In this paper, an adaptive boundary matching algorithm for error concealment of video frames is presented.  ... 

A Novel Boundary Matching Algorithm for Video Temporal Error Concealment

Seyed Mojtaba Marvasti Zadeh, Hossein Ghanei Yakhdan, Shohreh Kasaei
2014 International Journal of Image Graphics and Signal Processing  
In this paper, an efficient boundary matching algorithm for estimating damaged motion vectors (MVs) is proposed.  ...  The proposed algorithm performs error concealment for each damaged macro block (MB) according to the list of identified priority of each frame.  ...  In this paper, an efficient boundary matching algorithm was proposed for more accurate estimation of damaged MVs.  ... 
doi:10.5815/ijigsp.2014.06.01 fatcat:domkp6pwabhhxosvjd7cunbbgu

Video temporal error concealment using improved directional boundary matching algorithm

2016 Turkish Journal of Electrical Engineering and Computer Sciences  
Error concealment is a useful technique for concealing the effects of sending errors at the decoder.  ...  In this paper, an improved directional boundary matching algorithm is presented, in which by using adjacent macroblocks (MBs) of the damaged MB a direction is identified for each boundary.  ...  To evaluate the candidate MBs for error concealment, an efficient boundary matching algorithm [18] utilizes classic and proposed boundary matching criteria to use the spatial and temporal redundancy  ... 
doi:10.3906/elk-1409-88 fatcat:mmfwjoyeozdtzlu2xwnjxem7cm

Modified Boundary Matching algorithm for Error detection and Error Concealment for Video Communication

Modified Spatio-Temporal Boundary Matching Algorithm (MSTBMA) has been proposed. The proposed work is compared with various existing method for spatial and temporal error concealment.  ...  However, the output of the error concealment may get affected if the error located before is misleading. Thus error detection also plays an important role while reconstructing the video.  ...  Youjun Xiang suggested an efficient spatiotemporal boundary matching algorithm (ESTBMA) by introducing the concept of smoothness measurement.  ... 
doi:10.35940/ijitee.j8763.0881019 fatcat:p6ihm22acjfkvgwqpxj3icfmeu

Slice error concealment based on size-adaptive SSIM matching and motion vector outlier rejection

Hai Gao, Jo Yew Tham, Wei Siong Lee, Kwong Huang Goh
2011 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
Consecutive corrupted MBs or slice errors are commonly seen in modern video transmission systems. Temporal error concealment is an effective approach to reduce the impact of errors.  ...  Conventional temporal error concealment techniques recover slice errors on a MB basis. We propose a new novel temporal scheme for slice error concealment based on a size-adaptive region basis.  ...  Most existing temporal concealment approaches are based on the Boundary Matching Algorithm [1] and recover slice errors on a MB basis.  ... 
doi:10.1109/icassp.2011.5946855 dblp:conf/icassp/GaoTLG11 fatcat:4yh7p4b5q5gqjayln7je7b2qki

Enhanced Adaptively Space-Time-View Error Concealment for 3D Multi-View Video Transmission over Noisy Channels

Walid El- Shafai
2013 IOSR Journal of Computer Engineering  
We propose three adaptive EC algorithms for intra-frames, which are Adaptive Time Domain Error Concealment (ATDEC), Adaptive Space Domain Error Concealment (ASDEC) and a hybrid Adaptive Space-Time Domain  ...  We also propose three adaptive EC algorithms for interframes, which are Adaptive Inter-View Domain Error Concealment (AIVDEC), Adaptive Time Domain Error Concealment (ATDEC) and joint Adaptive Time and  ...  CONCLUSIONS In this paper, we have proposed low-complexity adaptive error concealment (EC) algorithms for 3D multi-view video coded (MVC) sequences corrupted by random channel errors.  ... 
doi:10.9790/0661-0936775. fatcat:sqwizldoizftxbatmw3vz6eapa

Disparity-based Error Concealment for Stereoscopic Images with Superpixel Segment

2018 KSII Transactions on Internet and Information Systems  
In this step, a strategy based on boundary smoothness is proposed to adaptively select the optimal disparity which is used for error concealment.  ...  To solve the problem of transmission errors in stereoscopic images, this paper proposes a novel error concealment (EC) method using superpixel segmentation and adaptive disparity selection (SSADS).  ...  An efficient and highly scalable concealment algorithm for textured color images is introduced in [3] .  ... 
doi:10.3837/tiis.2018.09.014 fatcat:odp5h3gterd45lcbastkofxbca

Robust 3-D Video System Based on Modified Prediction Coding and Adaptive Selection Mode Error Concealment Algorithm

Walid El-Shafai
2014 International Journal of Signal Processing Systems  
To improve the quality of 3D Multi-View Video (MVV) transmitted over noisy channels, we deploy Modified Prediction Multi-view Video Coding (MPMVC) algorithm at the encoder and Adaptive Selection Mode Error  ...  Index Terms-3D video, multi-view video coding, prediction coding structure, error concealment  ...  In this paper, we introduce an efficient Adaptive Selection Mode Error Concealment (ASMEC) algorithm for multi-view video encoded by Modified Prediction Multi-view Video Coding (MPMVC) algorithm.  ... 
doi:10.12720/ijsps.2.2.155-159 fatcat:vwocqmqmk5fehngue4mvd7ppr4

Efficient motion vector recovery algorithm for H.264 based on a polynomial model

Jinghong Zheng, Lap-Pui Chau
2005 IEEE transactions on multimedia  
In this paper, we propose an efficient motion vector recovery algorithm for the new coding standard H.264, which is based on a polynomial model.  ...  Index Terms-Error concealment, H.264.  ...  denotes the PSNR of corrupted video without any error concealment. denotes the PSNR of video concealed by temporal replacement. indicates the PSNR of video reconstructed by boundary matching algorithm.  ... 
doi:10.1109/tmm.2005.843343 fatcat:qxmkp5vwmzc4xm7er7bazcouym

Spatial and Temporal Error Concealment Techniques for Video Transmission Over Noisy Channels

W.-Y. Kung, C.-S. Kim, C.-C.J. Kuo
2006 IEEE transactions on circuits and systems for video technology (Print)  
Two novel error concealment techniques are proposed for video transmission over noisy channels in this work.  ...  Index Terms-Directional interpolation, minimum mean square error (MMSE) decoding, robust video transmission, spatial error concealment, temporal error concealment.  ...  An error concealment algorithm for the I-frame is presented in Section III while another error concealment algorithm for the P-frame is discussed in Sections IV and V.  ... 
doi:10.1109/tcsvt.2006.877391 fatcat:jliwfx6vq5getfw7iucd5scdse

A Hybrid Error Concealment Technique for H.264/AVC Based on Boundary Distortion Estimation [chapter]

Shinfeng D., Chih-Cheng Wang, Chih-Yao Chuang, Kuan-Ru Fu
2011 Recent Advances on Video Coding  
Corresponding MBs are judged by estimated MVs, obtained by boundary matching algorithms (BMA) (Lam et al., 1993) .  ...  The lost MB i The lost MB i Subtract pseudo-recovered boundary pixels Applying the spatial adaptive weight-based switching algorithm In the last step, the proposed spatial error concealment adopts the  ...  A Hybrid Error Concealment Technique for H.264/AVC Based on Boundary Distortion Estimation, Recent Advances on Video Coding, Dr.  ... 
doi:10.5772/16352 fatcat:ngiuc4v2yjfmbkmcwyg44jmswe

An Improved Motion Vector Estimation Approach for Video Error Concealment Based on the Video Scene Analysis

S. M. Zabihi, H. Ghanei-Yakhdan, N. Mehrshad
2020 Iranian Journal of Electrical and Electronic Engineering  
In order to enhance the accuracy of the motion vector (MV) estimation and also reduce the error propagation issue during the estimation, in this paper, a new adaptive error concealment (EC) approach is  ...  In the IOBMA, unlike the conventional boundary matching criterion-based EC techniques, not only each boundary distortion is evaluated regarding both the luminance and the chrominance components of the  ...  [22] proposed an EC algorithm which exploits two BMCs, including an external boundary matching (EBM) and a directional boundary matching (DBM) criteria, adaptively.  ... 
doaj:f6c5003c2e5e4774b191e0223ce8813d fatcat:vzpxoqycefdsbaddp7rayh5td4

ContentAdaptive Refined Error Concealment Schemes for H.264/AVC Video Coding

Santosh V. Chapaneri
2011 International Journal of Computer Applications  
In this paper, we propose content-adaptive refined error concealment schemes for video transmission over packet lossy networks.  ...  The proposed spatial and temporal error concealment algorithms improve the reconstructed video quality at the common loss rates encountered on the networks.  ...  An error detection mechanism is required prior to error concealment for the location of the error region in the decoded video [2] .  ... 
doi:10.5120/3309-4535 fatcat:qagmwe6mu5c4nmw7ok43lbzxei

Dynamic Error Concealment Algorithm for Multiview Coding Using Lost MBs Sizes and Adaptively Selected Candidates MBs

Mohamed Ebian
2012 IOSR Journal of Computer Engineering  
For Intra MBs, Spatial-Inter View (SIV) algorithm is proposed. For inter MBs, the proposed algorithm is adaptively changed according to size of lost MB.  ...  Redundancies between views and frames are used for inter-view and inra-view prediction ,respectively, in encoding and in Error Concealment (EC) in decoding.  ...  The Boundary Matching Algorithm (BMA) is considered as the basic motion compensation EC technique recommended in H.264/AVC standard for temporal concealment.  ... 
doi:10.9790/0661-0534044 fatcat:fcejrhjmnnharcktc42sybandm

Hybrid Error Concealment Using Linear Interpolation

Bor Nan Chen, Yinyi Lin
2007 ECTI Transactions  
The spatial and temporal boundary-matched errors are then used to check whether the SMFI conceals the erroneous macroblock properly.  ...  In this paper a hybrid error concealment algorithm using linear interpolation is proposed.  ...  To eliminate the effect of bit errors, many efficient error concealment algorithms have been proposed in recent years.  ... 
doi:10.37936/ecti-eec.200862.171773 fatcat:vyvewlhnvzeg7abdnskvroqql4
« Previous Showing results 1 — 15 out of 2,555 results