Which phoneme-to-viseme maps best improve visual-only computer lip-reading?
Table 3: Confusion factors for each viseme map tested
['Consonant Map Woodward', 'V:P 4:24', 'CF 0.16', 'Mean C 27.52', 'Vowel Map Jeffers', 'V:P 3:19', 'CF 0.16', 'Mean C 27.74']
The division of these phoneme across viseme classes will vary with each different map. (top four CF mean = 0.41) so the better P2V is 