HELICAL WEIGHTING ALGORITHMS FOR FAST RECONSTRUCTION

摘要

A system for producing a tomographic image of an object from projection data acquired in a helical scan, said system comprising an image reconstructor system configured to generate helical weighting factor based on a distance function, said helical weighting factor generated in accordance with: w1 + w2 = w q where q = b+g. 4399 ח' באדר ב' התשס" ג - March 12, 2003 Furthermore said weighting factors are generated in acordance with: where b denotes the source angle.