IMAGE DISPLAY APPARATUS, RADIATION IMAGING DISPLAY SYSTEM, IMAGE DISPLAY METHOD, AND IMAGE DISPLAY PROGRAM

• US 20200134884A1
• Filed: 10/23/2019
• Published: 04/30/2020
• Est. Priority Date: 10/29/2018
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: MORITA, Junya
• Granted Patent: US 11,170,541 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 6/025 Tomosynthesis
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61B 6/0414 with compression means
• CPC Class Codes: A61B 6/461 Displaying means of special interest
• CPC Class Codes: A61B 6/466 adapted to display 3D data
• CPC Class Codes: A61B 6/469 for selecting a region of interest [ROI]
• CPC Class Codes: A61B 6/502 for diagnosis of breast, i.e. mammography
• CPC Class Codes: A61B 6/5235 combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
• CPC Class Codes: G06T 11/003 Reconstruction from projections, e.g. tomography
• CPC Class Codes: G06T 11/008 Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
• CPC Class Codes: G06T 2207/10028 Range image; Depth image; 3D point clouds
• CPC Class Codes: G06T 2207/10112 Digital tomosynthesis [DTS]
• CPC Class Codes: G06T 2207/10116 X-ray image
• CPC Class Codes: G06T 2207/30068 Mammography; Breast
• CPC Class Codes: G06T 2211/436 Limited angle
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/30 Determination of transform parameters for the alignment of images, i.e. image registration
• CPC Class Codes: G06T 7/55 from multiple images

Abstract

An image display apparatus includes a depth map creating unit that creates, on the basis of a two-dimensional radiation image and a plurality of tomographic images for the same subject, a plurality of depth maps in which each position on the two-dimensional radiation image and depth information indicating a depth directional position of a tomographic plane corresponding to each position are associated with each other while changing a correspondence relationship between each position on the two-dimensional radiation image and the depth information.

Claims

1. An image display apparatus comprising:

a depth map creating unit that creates, on the basis of a two-dimensional radiation image and a plurality of tomographic images for the same subject, a plurality of depth maps in which each position on the two-dimensional radiation image and depth information indicating a depth directional position of a tomographic plane corresponding to each position are associated with each other while changing a correspondence relationship between each position on the two-dimensional radiation image and the depth information.

2. The image display apparatus according to claim 1,

wherein the depth map creating unit creates the plurality of depth maps for each frequency component of the two-dimensional radiation image and the plurality of tomographic images.

3. The image display apparatus according to claim 1,

wherein the depth map creating unit creates the plurality of depth maps for each object in the two-dimensional radiation image and the plurality of tomographic images.

4. The image display apparatus according to claim 1,

wherein the depth map creating unit creates the depth maps by associating each position on the two-dimensional radiation image and the depth information indicating the depth directional position of the tomographic plane corresponding to each position on the basis of a correlation between each position on the two-dimensional radiation image and the plurality of tomographic images.

5. The image display apparatus according to claim 1,

wherein the depth map creating unit divides the two-dimensional image into a plurality of regions, and creates the depth maps by associating a position of each region on the two-dimensional radiation image and the depth information indicating the depth directional position of the tomographic plane corresponding to the position of each region.

6. The image display apparatus according to claim 1, further comprising:

a display control unit that specifies depth information on a reference position in the two-dimensional radiation image with reference to the depth maps and displays a tomographic image of a tomographic plane indicated by the specified depth information on a display unit.

7. The image display apparatus according to claim 6, further comprising:

an input unit that receives designation of any position on the two-dimensional radiation image displayed on the display unit,

wherein the display control unit displays the tomographic images on the display unit using the designated position as the reference position.

8. The image display apparatus according to claim 7,

wherein the display control unit determines the depth map to be referred to from the plurality of depth maps on the basis of an input method in a case where the input unit receives the designation.

9. The image display apparatus according to claim 7,

wherein the display control unit determines the depth map to be referred to from the plurality of depth maps on the basis of an object at the designated position on the two-dimensional radiation image.

10. A radiation imaging display system comprising:

an imaging unit that acquires a two-dimensional radiation image and a plurality of tomographic images for the same subject; and

the image display apparatus according to claim 1.

11. An image display method comprising:

creating, on the basis of a two-dimensional radiation image and a plurality of tomographic images for the same subject, a plurality of depth maps in which each position on the two-dimensional radiation image and depth information indicating a depth directional position of a tomographic plane corresponding to each position are associated with each other while changing a correspondence relationship between each position on the two-dimensional radiation image and the depth information.

12. A non-transitory computer-readable storage medium storing an image display program for causing a computer to execute a procedure of creating, on the basis of a two-dimensional radiation image and a plurality of tomographic images for the same subject, a plurality of depth maps in which each position on the two-dimensional radiation image and depth information indicating a depth directional position of a tomographic plane corresponding to each position are associated with each other while changing a correspondence relationship between each position on the two-dimensional radiation image and the depth information.