format
{
a matrix of dimension c(51, 20) giving the position of the lower
lip every 7 milliseconds for 350 miliseconds.
}
- lipmarks
{
a matrix of dimension c(20, 2) giving the positions of the
'leftElbow' and 'rightElbow' in each of the 20 repitions of the
syllable 'bob'.
}
- liptime
{
time in seconds from the start = seq(0, 0.35, 51) = every 7
milliseconds.
}source
Ramsay, James O., and Silverman, Bernard W. (2006), Functional
Data Analysis, 2nd ed., Springer, New York, sections 19.2 and
19.3.