CONTENTS

 1     Scope
 2     References
        2.1     Normative references
        2.2     Informative references
 3     Terms, definitions and acronyms
 4     User requirements
        4.1     Improvement in efficiency of transmission link usage
        4.2     Improvement in reliability by real-time failure detection
        4.3     Improvement in efficiency of operation and maintenance by objective picture quality assessment by use of only received pictures
 5     Recommended framework
        5.1     General configuration
        5.2     Description of each element
                  5.2.1     Adjustment of delay difference
                  5.2.2     Averaging
                  5.2.3     Failure detection
                  5.2.4     Objective picture quality assessment
Appendix I - Averaging
        I.1        Theoretical background
        I.2        Picture shifting method
                  I.2.1     Spatial shifting method
                  I.2.2     Temporal shifting method
Appendix II -Failure detection and identification
       II.1     Detection of failure
       II.2     Identification of disrupted link
Appendix III - Coding noise assessment
      III.1     Theoretical background
      III.2     Method for SNR estimation