This paper discusses the cued speech recognition
methods in videoconference. Cued speech is a specific gesture
language that is used for communication between deaf people. We
define the criteria for sentence intelligibility according to answers of
testing subjects (deaf people). In our tests we use 30 sample videos
coded by H.264 codec with various bit-rates and various speed of
cued speech. Additionally, we define the criteria for consonant sign
recognizability in single-handed finger alphabet (dactyl) analogically
to acoustics. We use another 12 sample videos coded by H.264 codec
with various bit-rates in four different video formats. To interpret the
results we apply the standard scale for subjective video quality
evaluation and the percentual evaluation of intelligibility as in
acoustics. From the results we construct the minimum coded bit-rate
recommendations for every spatial resolution.
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 J. Polec, S. Ondru┼íov├í, A. Mordelov├í, J. Filanov├í, "New Objective
Method of Evaluation Cued Speech Recognition in Videoconferences,"
Proceedings Redž├║r 2010: 4th International Workshop on Speech and
Signal Processing, Bratislava, Slovak Republic, May, 14, 2010 -
Bratislava, STU v Bratislave FEI, 2010, 4 p., CD-Rom.