Patent ID: 6748049
Filing Date: 2004-06-08
Classification: A61B,H04N

Abstract:
An X-ray camera comprising:an X-ray irradiation unit; an X-ray image sensor including an X-ray-to-photo conversion device for converting an X-ray radiated from said X-ray irradiation unit to a photo signal for corresponding to an intensity of the X-ray and a photoelectric conversion device for converting the photo signal to an electric signal to output brightness data of an image in a unit of a pixel; a correction factor setting unit for setting a correction factor based on electronic image data of a reference subject provided from said X-ray image sensor which takes an X-ray photograph of the reference subject; a correction factor storage unit for storing the correction factor set in said correction factor setting unit; and a controller for correcting the brightness data of the image output from said X-ray image sensor based on the correction factor to output corrected brightness data.