kellySpaceTime

 Formula for space-time sensitivity (1/threshold) from Kelly, 1979

   [Sens,fs,ft] = kellySpaceTime(fs,ft)

   Reference: Kelly (1979) JOSA, v. 69, no. 10, p. 1340
    Motion and vision.  II. Stabilized spatio-temporal threshold surface 
   The space-time sensitivity function is defined in Equation 8.

   fs (cycles per degree) and ft (Hz) are spatial and temporal frequencies.
   See also:  humanSpaceTime

 Example:
   [Sens,fs,ft] = kellySpaceTime;
   surf(fs,ft,Sens);
   set(gca,'zscale','log','yscale','log','xscale','log')

 Copyright ImagEval Consultants, LLC, 2005.