Convolution reconstruction algorithm for multi-slice CT

Abstract

A multi-slice computed tomography imaging system (10) is provided including a source (18) generating a x-ray beam (32). A detector array (20) receives the x-ray beam (32) and generates projection data. A translating table (22) having an object (12) thereon is operable to translate in relation to the source (18) and the detector array (20). The source (18) and the detector array (20) rotate about the translating table (22) as to helically scan the object (12). An image reconstructor (44) is electrically coupled to the detector array (20). The reconstructor (44) determines a set of conjugate samples from the projection data and reconstructs an image by interpolating a set of projections corresponding to at least one plane of reconstruction in response to the set of conjugate samples, using convolutional scaling to produce a set of final weights. A method of reconstructing an image of an object for the imaging system (10) is also provided.

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