The Requirements for the Degree of Master of Science

.................................................................................................................... i List of Figures .............................................................................................................. iv List of Tables ............................................................................................................... v Introduction .......................................................................................................................................................................... 1 1.1 Challenges of Real time Video Transmission ........................................... 2 1.2 Thesis Contribution ................................................................................... 2 1.3 Thesis Overview ....................................................................................... 3 The H.264 / AVC and Related Works ................................................................................................................................. 4 2.1 The H.264/AVC ........................................................................................ 4 2.1.1 Scope of video coding standardization ........................................................ 5 2.1.2 Application and Design Features ................................................................. 6 2.1.3 Video Coding Layer .................................................................................. 10 2.2 Video Coding Algorithm ......................................................................... 14 2.2.1 Motion Estimation and Compensation ...................................................... 15 2.2.2 Transform .................................................................................................. 15 2.2.3 Quantization .............................................................................................. 16 2.2.4 Variable Length Coding ............................................................................ 16 2.3 Existing Error Resilient Techniques ...................................................... 17 2.3.1 Periodic I Frame ........................................................................................ 18 2.3.2 Forward Error Correction (FEC) ............................................................... 18 2.3.3 Multiple Description Coding (MDC) ........................................................ 19 2.4 Existing MD Coding Algorithms ........................................................... 19 2.4.1 Temporal Partition ..................................................................................... 21 2.4.2 MD Motion Compensation ........................................................................ 21 Proposed MDC Scheme ...................................................................................................................................................... 23 3.1 Problem Statement ................................................................................. 23 3.2 Proposed Scheme ................................................................................... 25 3.2.1 Network Condition .................................................................................... 26 3.2.2 Encoding process ....................................................................................... 27 3.2.3 Decoding Process ...................................................................................... 30 Simulation Results .............................................................................................................................................................. 32 4.1 Channel Model ....................................................................................... 32 4.2 Parameters Set ........................................................................................ 32 4.2.1 Test Sequence ............................................................................................ 32 4.2.2 Video Codec Employed ............................................................................. 33 4.2.3 Sequence Characteristics ........................................................................... 33 4.2.4 Parameters set for the Proposed Scheme, MDDP and SDC ...................... 33 4.3 Results and Comparisons ....................................................................... 34 4.3.1 Simulations using Silent QCIF sequence .................................................. 34 4.3.2 Simulation using Football QCIF sequence ................................................ 39 4.4 Remarks .................................................................................................. 43 Conclusion ........................................................................................................................................................................... 45