[M4IF Technotes] Warping equations for 2 warping points

[Yoshinori Suzuki]

Dear all,
Kris Huber wrote:
> 
> I can't confirm this, but can deny it :-).  I think the only error (other
> than some grammar errors) is that W'=2*alpha and H'=2*beta should be
> W'=2^alpha and H'=2^beta (exponents) at the end of 7.8.4.  Without
> understanding this error, the "fast version" of 2, 3, and 4 warping points
> equations can't be interpreted correctly.

I think that this error will be corrected by the corrigendum. 
These changes are covered in the first version of DCOR1 to the 
ISO/IEC 14496-2:2001 (Fairfax Output N4740).
Best regards,
Yoshinori Suzuki
Hitachi, Ltd.