Patent ID: 9019479
Filing Date: 2015-04-28
Classification: A61B,G01J,G01N,G06K

Abstract:
1. An imaging apparatus for generating data of a phase image based on an interference pattern acquired by a shearing interferometer, comprising: a differential phase data calculating unit that calculates first differential phase data expressing a change of a phase in a first direction and second differential phase data expressing a change of a phase in a second direction which intersects the first direction, based on data of an interference pattern generated by an electromagnetic wave transmitted through a subject; a second-order differential phase data calculating unit that calculates first second-order differential phase data by differentiating the first differential phase data in the first direction, and calculates second second-order differential phase data by differentiating the second differential phase data in the second direction; and a phase data calculating unit that calculates the data of the phase image of the subject by solving a second-order differential equation including the first second-order differential phase data and the second second-order differential phase data as functions.