Sentence examples for mask was obtained from inspiring English sources
The group insula mask was obtained by averaging across the individual insular masks and requiring that the insula voxels covered at least 50% of all subjects' gray matter.
For the whole brain analysis, an explicit mask was obtained by thresholding the a priori thresholded tissue probability maps provided by the SPM package at 0.25 for gray or white matter.
The white matter mask was obtained by using the segmentation utility in SPM5 (http://www.fil.ion.ucl.ac.uk/spm/software/spm5) to segment the white matter in the native space of each individual subject.
The mask was obtained after extensive testing by excluding all voxels in the first and the last template created by the DARTEL approach with a probability of below 0.2 for belonging to GM and including only the voxels that exceed this threshold in both templates.
HC mask was obtained by thresholding.
The cell nucleus mask was obtained from the GFP-HP1 or Dendra2-Pol II wide-field image by intensity thresholding.
A mask is obtained from the mean control images by an image histogram segmentation.
The convolution mask is obtained from the first-order derivative of a Gaussian kernel.
At first, a binary mask is obtained by segmenting the Fourier amplitude spectra (FAS) of this block.
A reduced order FEM model of the shadow mask is obtained from dynamic condensation of the mass and stiffness matrices, and damping wire is modelled using the lumped parameter method to effectively describe its contact interactions with the shadow mask.
Firstly, a simple mask is obtained to exclude the exterior parts of the fundus where the color is in the 0-U interval in all three channels (generally very dark regions).
