The television consistency index Formulation and preliminary tests

Outlines of statistical theory concerned with linear regression analysis and rank order difference analysis are given, and the Television Consistency Index method of assessing lamps for colour television scene lighting is described. Assessments are made of the extent to which the Consistency Index is representative of lamp performance, while being independent of particular colour television camera analysis characteristics. This work is based on a theoretical model of a colour television transmission system. The work described is part of a programme being carried out under the auspices of the Commission Internationale de l´Eclairage (CIE), who intended to complement this and other theoretical studies with practical tests before reaching a decision on the acceptability of the Television Consistency Index as a method of lamp assessment.