In this method, a series of phase masks are designed and located in the input plane and the gyrator planes, and the phase distributions of all the masks are adjusted simultaneously in each iteration.
The mask was adjusted and connected to the intrapulmonary percussive ventilator (IPV1 device, Percussionaire Corp., Sandpoint, ID, USA).
A tight-fitting oronasal mask was adjusted to each patient and checked for leaks before starting the exercise.
In the third case, the section mask is adjusted to the registered key frame according to the transformation that was obtained for motion compensation.
To maximize masking, the SF content of the mask was adjusted to fit stimulus center SF: square size of 64 × 64 pixels were used in LSF conditions (i.e., 4 cpi in a 256 × 256 pixel image), square size of 16 × 16 pixels in MSF conditions (i.e., 16 cpi), and square size of 4 × 4 pixels in HSF conditions (i.e., 64 cpi).
Masked, adjusted oximeters were used in this trial so that some were adjusted to display masked values 2% lower than actual SpO2, and others displayed masked values 2% higher.
This spiral angle was varied in experiment 3. Luminance contrast of the carrier and mask gratings and stimulus speed range were adjusted per observer, with a mean mask contrast of 0.9, and a mean carrier contrast of 0.24.
The results of trisomy 18 and 13 presented earlier were adjusted for GC-content bias, but repeat masking was not done.
Suitable thresholds were adjusted and kept constant for each slide, and binary masks were created.
Since treatment may be an effect modifier masking associations with radiological progression, the analyses in these data-sets were adjusted for inclusion period as proxy for treatment.
