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Table 2 Results of the subjective tests for talking heads by using TNT database. 5 video pairs were shown to 30 viewers. The number of the viewers, which identified the real and synthesized video correctly (NCI), was counted. The correct identifying rate (CIR) for each video pair was calculated.

From: Optimization of an Image-Based Talking Head System

Video pair 1 2 3 4 5
NCI 21 16 17 11 21
NTS 30 30 30 30 30
CIR 70% 53% 57 % 37 % 70%