Information processing apparatus, information processing method, and control apparatus

A control apparatus of tomosynthesis image capturing, the control apparatus comprising:

• an acquisition unit adapted to acquire, from a radiation detector, a plurality of projected images of a subject obtained by tomosynthesis image capturing;
• a reconstruction unit capable of executing (a) a first reconstruction method of reconstructing three-dimensional volume data based on the plurality of projected images acquired by the acquisition unit and (b) a second reconstruction method of reconstructing a plurality of two-dimensional tomographic image data based on the plurality of projected images acquired by the acquisition unit;
• a selection unit adapted to select one of the first reconstruction method and the second reconstruction method corresponding to the plurality of projected images;
• a generation unit adapted to, in a case that the first reconstruction method is selected, generate a two-dimensional tomographic image along a detection plane of the radiation detector and an oblique image of a cross-section crossing the detection plane based on the three-dimensional volume data;
• and
• a display control unit adapted to, in a case that the first reconstruction method is selected, cause a display unit to display the two-dimensional tomographic image and the oblique image generated by the generation unit, and in a case that the second reconstruction method is selected, cause the display unit to display at least one of the plurality of two-dimensional tomographic image data reconstructed by the reconstruction unit,
• wherein the selection unit switches between the first reconstruction method and the second reconstruction method based on whether a size of the three-dimensional volume data determined by a reconstruction condition of the three-dimensional volume data exceeds a threshold.

An image processing apparatus comprising:

• an acquisition unit adapted to acquire a plurality of projected images of a subject obtained by tomosynthesis image capturing;
• a reconstruction unit capable of executing (a) a first reconstruction method of reconstructing three-dimensional volume data based on the plurality of projected images acquired by the acquisition unit and (b) a second reconstruction method of reconstructing a plurality of two-dimensional tomographic image data based on the plurality of projected images acquired by the acquisition unit;
• a selection unit adapted to select one of the first reconstruction method and the second reconstruction method corresponding to the plurality of projected images;
• a generation unit adapted to, in a case that the first reconstruction method is selected, generate a two-dimensional tomographic image along a detection plane of the radiation detector and an oblique image of a cross-section crossing the detection plane based on the three-dimensional volume data;
• and
• a display control unit adapted to, in a case that the first reconstruction method is selected, cause a display unit to display the two-dimensional tomographic image and the oblique image generated by the generation unit, and in a case that the second reconstruction method is selected, cause the display unit to display at least one of the plurality of two-dimensional tomographic image data reconstructed by the reconstruction unit,
• wherein the selection unit switches between the first reconstruction method and the second reconstruction method based on whether a size of the three-dimensional volume data determined by a reconstruction condition of the three-dimensional volume data exceeds a threshold.

A control method of an X-ray imaging system including a reconstruction unit capable of executing (a) a first reconstruction method of reconstructing three-dimensional volume data based on a plurality of projected images obtained by tomosynthesis image capturing and (b) a second reconstruction method of reconstructing a plurality of two-dimensional tomographic image data based on the plurality of projected images acquired by the acquisition unit, the method comprising:

• acquiring, from a radiation detector, the plurality of projected images of a subject obtained by the tomosynthesis image capturing;
• selecting one of the first reconstruction method and the second reconstruction method corresponding to the plurality of projected images;
• in a case that the first reconstruction method is selected, generating a two-dimensional tomographic image along a detection plane of the radiation detector and an oblique image of a cross-section crossing the detection plane based on the three-dimensional volume data;
• and
• in a case that the first reconstruction method is selected, causing a display unit to display the generated two-dimensional tomographic image and the generated oblique image, and in a case that the second reconstruction method is selected, causing the display unit to display at least one of the plurality of two-dimensional tomographic image data reconstructed by the reconstruction unit,
• wherein, in the selecting, switching between the first reconstruction method and the second reconstruction method is performed based on whether a size of the three-dimensional volume data determined by a reconstruction condition of the three-dimensional volume data exceeds a threshold.

An image processing method by a reconstruction unit capable of executing (a) a first reconstruction method of reconstructing three-dimensional volume data based on a plurality of projected images and (b) a second reconstruction method of reconstructing a plurality of two-dimensional tomographic image data based on the plurality of projected images acquired by an acquisition unit, the method comprising:

• acquiring, from a radiation detector, the plurality of projected images of a subject obtained by tomosynthesis image capturing;
• selecting one of the first reconstruction method and the second reconstruction method corresponding to the plurality of projected images;
• in a case that the first reconstruction method is selected, generating a two-dimensional tomographic image along a detection plane of the radiation detector and an oblique image of a cross-section crossing the detection plane based on the three-dimensional volume data;
• and
• in a case that the first reconstruction method is selected, causing a display unit to display the generated two-dimensional tomographic image and the generated oblique image, and in a case that the second reconstruction method is selected, causing the display unit to display at least one of the plurality of two-dimensional tomographic image data reconstructed by the reconstruction unit,
• wherein, in the selecting, switching between the first reconstruction method and the second reconstruction method is performed based on whether a size of the three-dimensional volume data determined by a reconstruction condition of the three-dimensional volume data exceeds a threshold.