Transcoding-after-Smoothing System for VBR MPEG Video Streaming
スポンサーリンク
概要
- 論文の詳細を見る
Delivering video streaming service over the Internet encounters some challenges. Two of them are heterogeneity of networks capacity and variability of video data rate. The capacity of network segments are constrained. Meanwhile, the rate of video data to be transmitted is highly variable in order to get near-constant images quality. Therefore, to send variable bit rate (VBR) video data over capacity-constrained network, its bit rate should be adjusted. In this paper a system to adjust the transmission bit rate of VBR MPEG video data called Transcoding-after-Smoothing (TaS), which is a combination of bit rate transcoding and bit rate smoothing algorithm, is proposed. The system smoothes out transmission rate of video data while at the same time also performs transcoding on some video frames when necessary in order to keep the transmission bit rate below a certain threshold value. Two kinds of TaS methods are proposed. One method does not have transcoding preference, while the other method uses frame type preference where an intra-coded frame is the last one that will be transcoded. These methods are implemented in our video server where a VBR video data is accessed by a client. Our experiment results show that the first TaS method yields significant reduction in the number of transcoded frames compared with the second TaS method and conventional frame-level transcoding. However, the second method performs better in minimizing the quality distortion.
- （社）電子情報通信学会の論文
- 2009-02-01
著者
-
MORITA Hiroyoshi
Graduate School of Information Systems, University of Electro-Communications
-
NUGRAHA I
Graduate School of Information Systems, the University of Electro-Communicatons
-
Nugraha I
Graduate School Of Information Systems The University Of Electro-communications
-
Morita Hiroyoshi
Graduate School Of Information Systems The University Of Electro-communications
関連論文
- Soft Decoding of Integer Codes and Their Application to Coded Modulation
- Evaluation of mutual anonymity in P2P networks (情報処理)
- Transcoding-after-Smoothing System for VBR MPEG Video Streaming
- Evaluation of mutual anonymity in P2P networks (情報セキュリティ)
- Evaluation of mutual anonymity in P2P networks (情報処理)
- Evaluation of mutual anonymity in P2P networks (ワイドバンドシステム)
- Multicast Communication for Video Broadcasting Service over IPv4 Network Using IP Option(Internet)
- Derivation on Bit Error Probability of Coded QAM Using Integer Codes(Communication Theory and Signals)
- Integer Codes Correcting Single Errors of Specific Types (±e_1, ±e_2,..., ±e_s)(Communication Theory and Signals)
- Codes over the Ring of Integers Modulo m (Special Section on Information Theory and Its Applications)
- On Analysis of Acceptable Region of a Statistical Multiplexer Based on Fractional Brownian Traffic Models
- On Construction of Reversible Variable-Length Codes Including Resynchronization Markers as Codewords
- On Multiple Smoothed Transmission of MPEG4 Video Stream
- On Multiple Smoothed Transmission of MPEG Video Streams(Image Coding, Information Theory and Its Applications)
- On Trimming Codewords of Arithmetic Codes
- Reversible Distribution Converter with Finite Precision Arithmetic
- Special Section on Information Theory and Its Applications
- On Increasing the Number of Users in (t, n) Threshold Secret Sharing Schemes
- On the Construction of an Antidictionary with Linear Complexity Using the Suffix Tree(Algorithms and Data Structures)
- Perfect (2, n) Threshold Secret Sharing Systems Based on Matrices with Constant Column Weight
- Soft Decoding of Integer Codes and Their Application to Coded Modulation
- On (±1) Error Correctable Integer Codes
- On-Line Electrocardiogram Lossless Compression Using Antidictionary Codes for a Finite Alphabet
- Linear Complexity Construction of Antidictionaries
- An Upper Bound on Size of Antidictionary
- Construction of q-ary (2,n) Threshold Secret Sharing Systems
- On the Irreducibility of Certain Shifts of Finite Type
- Real-Time and Memory-Efficient Arrhythmia Detection in ECG Monitors Using Antidictionary Coding
- A Geographic Location-Based Distributed Routing System