Canon Kabushiki Kaisha

Chizuru Inoue

Takashi Yoshida

A radiation imaging apparatus detects the density distribution of an image formed by a radiopaque dye from each of two images obtained by radiation imaging. The apparatus predicts the moving speed of the image formed by the radiopaque dye based on the moving amount of the detected density distribution and the interval between the radiographing times of the two images, and determines the next timing of radiation imaging based on the predicted moving speed and the detected density distribution. A radiation imaging apparatus detects the density distribution of a radiopaque dye in an image obtained by X-ray radiation imaging and predicts the moving speed of the radiopaque dye based on the change amount of the density distribution. The radiation imaging apparatus determines the X-ray irradiation timing based on the predicted radiopaque dye moving speed, the detected radiopaque dye density distribution, and a predetermined radiopaque dye density.

Radiation imaging apparatus and method of controlling the same

A CPU () acquires objective information indicating the objective of X-ray photography before X-ray photography is performed, and sets an X-ray photography mode corresponding to the acquired objective information. After the start of X-ray photography, the CPU then determines whether information communication from an operation unit () is normal. Upon determining that information communication is not normal, the CPU performs operation control on X-ray photography in accordance with the set X-ray photography mode.

Growing community of inventors

Tokyo, Japan

Chizuru Inoue