23,452 Hits in 4.2 sec

Improved Error Concealment Using Scene Information [chapter]

Ye-Kui Wang, Miska M. Hannuksela, Kerem Caglar, Moncef Gabbouj
2003 Lecture Notes in Computer Science  
This paper proposes some improved error concealment methods for intra coded pictures and scene transition pictures using the signaled scene information.  ...  information (SEI) message.  ...  error concealment methods can be applied to improve error concealment performance.  ... 
doi:10.1007/978-3-540-39798-4_36 fatcat:hy4haptvbjabfh5kfaf7hjk3da

A Robust H.264 Decoder With Error Concealment Capabilities

Luca Celetto, G.A. Mian, Gianluca Gennari
2004 Zenodo  
In section 3.2.2 we describe an algorithm that uses temporal prediction to improve the concealment.  ...  Intra concealment In Intra images, the JVT algorithm uses information from surrounding blocks to reconstruct the missing data.  ... 
doi:10.5281/zenodo.38232 fatcat:igringh6pzdadlnnksap5a3cxa

Adaptive spatial–temporal error concealment with embedded side information

Wenjun Zeng
2005 Journal of Visual Communication and Image Representation  
This paper proposes to use data embedding to convey the necessary high level side information in a standard compliant way to help improve the decoder's EC performance.  ...  Error concealment (EC) is an important technique to recover the lost/damaged video data in transmitting video over error prone networks such as the Internet or wireless networks.  ...  will be able to extract and use the embedded side information to help improve the EC performance.  ... 
doi:10.1016/j.jvcir.2004.11.008 fatcat:jenslajb6fgvlc72e6tmfohuf4

Improved Error Correction Techniques for Digital Multimedia Broadcasting (DMB) Service

Xiaoming Chen, Yuk Ying Chung, Wei-Chang Yeh, Neil Bergmann, Noorhaniza Wahid, Mohd Afizi Mohd Shukran
2011 Modern Applied Science  
This paper focuses on error correction and concealment technologies for the modern video encoding/decoding standards.  ...  In this paper, we present a subblock error concealment method for intra-frames based on an error detection scheme in error prone network environments such as the application of digital multimedia broadcasting  ...  The block was concealed using the vertical object edge direction due to the high contrast between the scene border and the actual scene.  ... 
doi:10.5539/mas.v5n6p3 fatcat:hxrsakvp3zbsrdulc6cy4edtvq

An Improved Error Concealment Strategy Driven By Scene Motion Properties For H.264/Avc Decoders

Franco Chiaraluce, Ennio Gambi, Susanna Spinsante
2006 Zenodo  
replacement for Inter frames improves the behavior of the original JM9.7 concealment algorithm, when a scene change takes place, avoiding the use of macrolocks that are not related to the video content  ...  INTRODUCTION Compressed video information, as H.264/AVC encoded video, is in general very sensitive to channel errors which may appear during transmission.  ... 
doi:10.5281/zenodo.53031 fatcat:uhd2rxjg3fdh5kojejwfsvlnb4

Predicting packet-loss visibility using scene characteristics

Amy R. Reibman, David Poole
2007 Packet Video 2007  
Further, while packet losses that are concealed using a prior scene's image are strongly visible, all other packet losses near a scene change are much less likely to be visible, all other factors being  ...  We use Patient Rule Induction Method (PRIM) to pick out both highly visible and very invisible packet losses.  ...  Dataset 2 uses zero-motion error concealment (ZMEC), while Dataset 1 uses a naive error concealment that is typical of software decoders 1 .  ... 
doi:10.1109/packet.2007.4397055 fatcat:77hhex2olbhhfozc2j3undndhe

Spatio-Temporal Scene Level Error Concealment for Shape and Texture Data in Segmented Video Content

Luis Ducla Soares, Fernando Pereira
2006 2006 International Conference on Image Processing  
In the proposed technique, concealment is done by using information from the current time instant as well as from the past.  ...  In this paper, a novel shape and texture error concealment technique for segmented object-based video scenes is proposed.  ...  SCENE LEVEL ERROR CONCEALMENT IN SEGMENTED VIDEO In order to better understand the proposed scene level error concealment solution, the type of problems that may appear in segmented video scenes when channel  ... 
doi:10.1109/icip.2006.312810 dblp:conf/icip/SoaresP06 fatcat:ys4ttrsxqzc3ngcbur2a3qhmqu

Error Concealment for SVC Utilizing Spatial Enhancement Information

Tommi Keränen, Janne Vehkaperä, Johannes Peltola
2008 Proceedings of the 4th International Mobile Multimedia Communications Conference  
In this paper packet loss error concealment for video sequences compressed using spatial scalability is investigated.  ...  In case of lost base layer slices further improvement on the reconstruction is then achieved by using the correctly received spatial enhancement information for the same frame.  ...  , if the correctly received spatial enhancement information could be used to improve the concealment of the base layer.  ... 
doi:10.4108/icst.mobimedia2008.3989 dblp:conf/mobimedia/KeranenVP08 fatcat:sraqjao6dbgs7ddgmsd5ddwt6u

Scene-effect detection and insertion MPEG encoding scheme for video browsing and error concealment

Soo-Chang Pei, Yu-Zuong Chou
2005 IEEE transactions on multimedia  
For video transmission, the bitstreams containing scene-effect information can obtain better error concealment performance when scene changes are involved.  ...  In this paper, a novel MPEG codec embedded with scene-effect information detection and insertion is proposed to provide more functionality at the decoder end.  ...  Regarding error concealment, temporal error concealment is widely used and proven superior to spatial error concealment in most of cases.  ... 
doi:10.1109/tmm.2005.850961 fatcat:gbkuhbwzxffkrmkwhu7pq7j2na

An Optimized Dynamic Scene Change Detection Algorithm for H.264/AVC Encoded Video Sequences

Giorgio Rascioni, Susanna Spinsante, Ennio Gambi
2010 International Journal of Digital Multimedia Broadcasting  
This is a valuable issue, considering the possible application of the proposed algorithm in post-processing operations, such as error concealment for video decoding in typical error prone video transmission  ...  This paper deals with the design and performance evaluation of a dynamic scene change detector optimized for H.264/AVC encoded video sequences.  ...  Scene change detection algorithms may improve the performance of error concealment solutions, by allowing the selection of the proper spatial or temporal strategy.  ... 
doi:10.1155/2010/864123 fatcat:fzcpddhfofclncacp4imr4l3ia

Video Error Concealment Using Fidelity Tracking

2008 IEICE transactions on information and systems  
) An adaptive post-filter using the fidelity information.  ...  In this paper, we focus on the error concealment that is processed at the decoder without using any backchannels.  ...  One solution is to employ Forward Error Correction (FEC) or Packet Duplication (PD). This solution recovers lost information using redundant information.  ... 
doi:10.1093/ietisy/e91-d.1.70 fatcat:biyrcnbtkrcltbc6god4d5kt4y

Adaptive multiple description video coding and transmission for scene change

Mengmeng Zhang, Huihui Bai
2012 EURASIP Journal on Wireless Communications and Networking  
frames with scene change.  ...  Therefore, it may be a promising choice for video transmission over error-prone channels, especially over wireless networks.  ...  The other is using error concealment methods to estimate lost frames. The details of adaptive temporal sampling and the improvement for scene change are shown in the following subsections.  ... 
doi:10.1186/1687-1499-2012-265 fatcat:2a5huuxcs5h6jmnasd3kgaz7si

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  
To improve the quality of reconstructed 3D video, we propose adaptive Error Concealment (EC) algorithms to conceal the erroneous blocks of intra-coded and inter-coded frames.  ...  Error Concealment (ASTDEC).  ...  Apply Scene Change Detection Algorithm, to check if Temporal information > Spatial information or vice versa. 6.  ... 
doi:10.9790/0661-0936775. fatcat:sqwizldoizftxbatmw3vz6eapa

Spatial-temporal error concealment with side information for standard video codecs

Wenjun Zeng
2003 2003 International Conference on Multimedia and Expo. ICME '03. Proceedings (Cat. No.03TH8698)  
Error concealment (EC) is important for transmitting video over error prone networks such as the Internet or wireless networks.  ...  This paper proposes to use data embedding to convey the necessary high level side information in a standard compliant way to help improve the decoder's EC performance.  ...  For many cases such as the scene change or high motion frames, spatial error concealment is very important.  ... 
doi:10.1109/icme.2003.1221566 dblp:conf/icmcs/Zeng03 fatcat:kgymbxi7and37a3hntrojzbgdi

A robust video encoding scheme to enhance error concealment of intra frames

J. Carreira, P. Assuncao, S. Faria, E. Ekmekcioglu, A. Kondoz
2017 2017 IEEE International Symposium on Circuits and Systems (ISCAS)  
PROPOSED CONCEALMENT-AWARE ENCODING At the HEVC decoder, such information is used to guide the error concealment operation to recover erroneous frames with high accuracy.  ...  In [4] an estimation of the error concealment distortion is used for slice classification and unequal error protection.  ... 
doi:10.1109/iscas.2017.8050576 dblp:conf/iscas/CarreiraAFEK17 fatcat:qwvmnf4yxzg6rdahmohavml6du
« Previous Showing results 1 — 15 out of 23,452 results