As previously discussed, the operators involved in forward model (10) are a cropping operator, a one-dimensional convolution, and a projector.
The cropping operator C maps an extended sinogram of support (N_2 times N_p) to a sinogram of support (N times N_p), by keeping only the N central columns.
In practice, the cropping operation is implemented inside the projector (tilde{P}) by simply restricting the projection to the detector limited field of view N. In the formulas, the cropping operator C is explicitly separated from the projector (tilde{P}) to highlight the local setup in the forward model.
Once the optimal correction term (hat{x_e}) is found, the resulting reconstruction is simply computed as (x = tilde{C} tilde{x_0} + hat{x_e})) where (tilde{C}) is a cropping operator in the image domain, mapping images of support (N_2^2) to images of support (N^2).
As working remotely has become not only more technically viable but more professionally accepted, a growing crop of travel operators have tapped into this new market opportunity.
Their firms — and LPs — noticed, and responded by trying to hire a new crop of partners, operators with the cachet to win over founders and snare the next great deal.
When the facial images of 110 × 150 pixels, including mouth, eyes, brows, and noses, were cropped from the original images, the LBP operator was applied to each cropped image and extracted the LBP features.
"In Australia," he said, "75percentt of the crop is managed by five operators.
It has promised to find markets for this year's StarLink crop and to compensate farmers, elevator operators like Mr. Phillips and processors for some of their expenses.
Thus, the projection is cropped by the means of an operator C to recover the original local geometry.
