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Method, apparatus, and program for aligning images

A technology for aligning devices and images, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problems of artifacts in subtraction images, and achieve high-accuracy results

Inactive Publication Date: 2012-01-25
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a positional shift occurs in the heart in this way, there will be artifacts in the subtraction image acquired by the energy subtraction process

Method used

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  • Method, apparatus, and program for aligning images
  • Method, apparatus, and program for aligning images
  • Method, apparatus, and program for aligning images

Examples

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Embodiment Construction

[0061] Hereinafter, embodiments of the present invention are described with reference to the drawings. figure 1 is a block diagram showing a schematic configuration of the image position alignment device 1 according to the first embodiment of the present invention. Notice, figure 1 The image position alignment device 1 in is applied to an energy subtraction device that performs subtraction processing using radiographic image pairs. For example, the energy subtraction device is installed on an imaging console that uses a radiation detector to acquire radiographic images. By executing an image alignment processing program downloaded to an auxiliary storage device on a computer (such as a personal computer), such as figure 1 The structure of the image position alignment device 1 is shown. At this time, the image alignment processing program is installed in a computer after being recorded on a data recording medium such as a CD-ROM or distributed via a network such as the Inter...

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Abstract

A band image generating means generates a plurality of first band images and a plurality of second band images that represent structures of different frequency bands within a first and a second image of the same portion of a single subject. A positional shift amount obtaining means obtains amounts of positional shift among corresponding positions within the first band images and the second band images of corresponding frequency bands.

Description

technical field [0001] The present invention relates to an image position alignment method, an image position alignment device, and an image position alignment program for aligning a plurality of images with each other. Background technique [0002] Energy subtraction processing utilizing the fact that the amount of attenuation of rays passing through a subject differs depending on the substance through which the rays pass is generally known. The energy subtraction process uses two radiographic images acquired by irradiating a certain object with two kinds of rays having different energies. The energy subtraction process may be used to generate a soft tissue image, such as an image of the acquired breast region from which the bone has been removed. Such soft tissue images allow observation of patterns occurring within soft tissue without being obstructed by bone. Conversely, an image of the bone can be produced with the soft tissue removed, so that patterns occurring insid...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06K9/32
CPCG06T3/0068G06T2207/20016G06T2207/20064G06T2207/20021G06T2207/30061G06T7/003G06T2207/10116G06T7/0036G06T7/337G06T7/37G06T3/14
Inventor 川村隆浩
Owner FUJIFILM CORP
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