Policy on Intellectual Property Right (IPR)
Annex 1  Description of assessment methods
 1     Introduction
 2     Common features
        2.1     General viewing conditions
                  2.1.1     Laboratory environment
                  2.1.2     Home environment
                  2.1.3     Monitor resolution
                  2.1.4     Monitor contrast
        2.2     Source signals
        2.3     Selection of test materials
        2.4     Range of conditions and anchoring
        2.5     Observers
        2.6     Instructions for the assessment
        2.7     The test session
        2.8     Presentation of the results
 3     Selection of test methods
 4     The double-stimulus impairment scale (DSIS) method (the EBU method)
        4.1     General description
        4.2     General arrangement
        4.3     Presentation of the test material
        4.4     Grading scales
        4.5     The introduction to the assessments
        4.6     The test session
 5     The double-stimulus continuous quality-scale (DSCQS) method
        5.1     General description
        5.2     General arrangement
        5.3     Presentation of the test material
        5.4     Grading scale
        5.5     Analysis of the results
        5.6     Interpretation of the results
 6     Alternative methods of assessment
        6.1     Single-stimulus (SS)  methods
                  6.1.1     General arrangement
                  6.1.2     Selection of test material
                  6.1.3     Test session
                  6.1.4     Types of SS methods
        6.2     Stimulus-comparison methods
                  6.2.1     General arrangement
                  6.2.2     The selection of test material
                  6.2.3     Test session
                  6.2.4     Types of stimulus-comparison methods
        6.3     Single stimulus continuous quality evaluation (SSCQE)
                  6.3.1     Continuous assessment of overall quality
                  6.3.2     Calibration of continuous quality results and derivation of a single quality rating
        6.4     Simultaneous double stimulus for continuous evaluation (SDSCE) method
                  6.4.1     The test procedure
                  6.4.2     The different phases
                  6.4.3     Test protocol features
                  6.4.4     Data processing
                  6.4.5     Reliability of the subjects
        6.5     Remarks
Appendix 1 to Annex 1  Picture-content failure characteristics
 1     Introduction
 2     Deriving the failure characteristic
 3     Use of the failure characteristic
Appendix 2 to Annex 1  Method of determining a composite failure characteristic for programme content and transmission conditions
 1     Introduction
 2     Programme-content analysis
 3     Transmission-channel analysis
 4     Derivation of composite failure characteristics
Appendix 3 to Annex 1  Contextual effect
Annex 2  Analysis and presentation of results
 1     Introduction
 2     Common methods of analysis
        2.1     Calculation of mean scores
        2.2     Calculation of confidence interval
                  2.2.1     Processing of raw (uncompensated and/or unapproximated) data
                  2.2.2     Processing of compensated and/or approximated data
        2.3     Screening of the observers
                  2.3.1     Screening for DSIS, DSCQS and alternative methods except SSCQE method
                  2.3.2     Screening for SSCQE method
 3     Processing to find a relationship between the mean score and the objective measure of a picture distortion
        3.1     Approximation by a symmetrical logistic function
        3.2     Approximation by a non-symmetrical function
                  3.2.1     Description of the function
                  3.2.2     Estimation of the parameters of the approximation
        3.3     Correction of the residual impairment/enhancement and the scale boundary effect
        3.4     Incorporation of the reliability aspect in the graphs
 4     Conclusions
Annex 3  Description of a common inter-change data file format