Rectangular Coded Aperture
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
In a recent article [*] an nxn aperture was described for imaging. While square apertures are commonly used in medical applications, more general rectangular apertures may be used in other applications. A general rectangular mask of dimensions nxm is shown in Fig. 1 as a binary array. The decoding array is of the form shown in Fig. 2, in which: In the case of n=m these values reduce to those in the article referred to. The mask has an open area which is the fraction (n+m-2)/nm of the total mask area. Reference A. R. Gourlay, "Coded Aperture for Tomographic Imaging," IBM Technical Disclosure Bulletin 24, 2848-2849 (November 1981).