BS ISO 20462-1:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Specification of the experimental conditions and results
  4.1 Observer characteristics
  4.2 Stimulus properties
  4.3 Instructions to the observer
  4.4 Viewing conditions
  4.5 Experimental duration
  4.6 Results
  4.7 Summary of reported quantities
Annex A (informative) Selection of an appropriate
                      psychophysical method
Annex B (informative) Stimulus differences, paired
                      comparison proportions, and JNDs
Annex C (informative) Example of a report of a psychophysical
                      experiment
Annex D (informative) Comparison of selected psychometric methods
Bibliography

Defines the units by which image quality is quantified (just noticeable differences, or JNDs); describes the influence of stimulus properties, observer characteristics, and task instructions on results obtained from rating experiments; and provides a flow chart for choosing the preferred psychophysical method for determining image quality from among those defined in subsequent parts of ISO 20462.

This part of ISO 20462 is part of a multiple-part standard pertaining to the subjective evaluation of pictorial still image quality. This part of ISO 20462 defines the units by which image quality is quantified (just noticeable differences, or JNDs); describes the influence of stimulus properties, observer characteristics, and task instructions on results obtained from rating experiments; provides a flow chart for choosing the preferred psychophysical method for determining image quality from among those defined in subsequent parts of ISO 20462.