Radiation image capturing apparatus

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data;
• and
• a calibrating device comprising a repetition pattern provided at a light incident side of the plurality of area sensors and to conduct calibration to correct the image data converted by the plurality of area sensors on the basis of the repetition pattern,
• wherein when the repetition pattern comprises a plurality of marks and a radiation image detector captures a radiation image of the object through the plurality of marks, the signal level obtained through the mark is corrected by using the signal level obtained through a portion other than the mark.

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data;
• a calibrating device comprising a repetition pattern provided at a light incident side of the plurality of area sensors and to conduct calibration to correct the image data converted by the plurality of area sensors on the basis of the repetition pattern, and
• a light source to emit light at the time of conducting the calibration.

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data;
• and
• a calibrating device comprising a repetition pattern provided at a light incident side of the plurality of area sensors and to conduct calibration to correct the image data converted by the plurality of area sensors on the basis of the repetition pattern,
• wherein the calibrating device conducts geometrical corrections for the image data obtained from the plurality of area sensors, and
• wherein the calibration device conducts a signal value correction.

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data;
• and
• a calibrating device comprising a repetition pattern provided at a light incident side of the plurality of area sensors and to conduct calibration to correct image data converted by the plurality of area sensors on the basis of the repetition pattern,
• wherein the calibration device comprises a position recognizing section to recognize a predetermined position of the repetition pattern, and a correction amount calculating section to calculate a correction amount for the calibration on the basis of positional information obtained by the position recognizing section, and
• wherein the repetition pattern is shaped in a lattice and the positional recognizer recognizes a cross point in the lattice as a predetermined position for a calibration chart.

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data;
• and
• a calibrating device comprising a calibrating section to conduct calibrating automatically at a predetermined timing and a memory to store correction data obtained by the calibrating section.

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data;
• and
• a calibrating device comprising a calibrating section to conduct calibrating and a calibration designating section to designate a calibrating method and/or a calibrating timing.

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to correspond in number to the plurality of lens units and to convert the focused image light into image data;
• and
• a calibrating device comprising a calibrating section to conduct calibrating and a calibration starting section to start a calibration at an optional timing.

A radiation image capturing apparatus, comprising:

• a radiation image detector arranged so as to face a radiation source or an object and comprising
• a scintillator to receive a radiation image and to emit image light;
• a lens unit array comprising a plurality of lens units and to focus the image light;
• and
• a plurality of area sensors arranged so as to corresponding number to the plurality of lens units and to convert the focused image light into image data;
• and
• a calibrating device comprising a repetition pattern provided at a light incident side of the plurality of area sensors and to conduct calibration to correct a positional relationship among the image data converted by the plurality of area sensors on the basis of the repetition pattern,
• wherein the calibrating device further comprises a distortion correcting section to correct an optical distortion on the image data caused by each of the plurality of lens units and a positional deviation correcting section to correct a positional deviation of the image data caused by a positional deviation of each of the plurality of area sensors and
• wherein the calibrating device corrects the positional deviation after correcting the optical distortion.