CIRCULAR TOMOSYNTHESIS FOR X-RAY RADIOGRAPHS OF TISSUES (I) MATHEMATICAL MODEL OF OPTIMAL TOMOSYXTHETIC SLICE
生物组织X光照片圆层析合成法的研究——Ⅰ、优化断层片的数学方法

In circular tomosynthesis obtained a sufficient number of radiographs with projection direction forming a single cone, object detail at a distance from the plane of interest is blurred according to the zero order Bessd function. The degree of blurring of unwanted planes is determined by the transfer function of the tomosynthetic system Using the orthogonality of Bessel Functions, a set of sampling cone opening angles was specified. The window function that concentrates the most "energy" within a finite interval for a fixed number of sampling cones is the circular prolate spheroidal function.