
In certain FIR filters whose corner is
exactly 0.25 fs, half the coefficients
are zero. This leads to a considerable
reduction in complexity.
In the common case of interpola-
tion horizontally across an image
row, the argument x is horizontal
position. Interpolating along the
time axis, as in digital audio sample
rate conversion, you could use the
symbol t to represent time.
In computer graphics, the linear
interpolation operation is often
called
LIRP,
(pronounced
lerp).
is greatly relaxed compared to direct conversion. In
today's technology, the cost of the digital downsampler
is less