Four sets of coefficients (each set has four coefficients) corresponding to anchor pixels and interpolated pixels of top field and bottom field
For progressive inputs, the coefficients corresponding to top and bottom field must be identical
Each coefficient is 14 bit (4.10 format)
Default filter coefficients are based on Catmull-Rom algorithm
Capable of removing the half pel vertical offset so all chroma samples are on-grid. This step ensures that the output does not suffer from any kind of rainbow effect due to chroma-upsampling.
Provides a 10-bit interface in both directions: 10-bit input and 10-bit output