KR20160049935A - Tomography image decipher treatment system and method - Google Patents

Tomography image decipher treatment system and method Download PDF

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KR20160049935A
KR20160049935A KR1020140147773A KR20140147773A KR20160049935A KR 20160049935 A KR20160049935 A KR 20160049935A KR 1020140147773 A KR1020140147773 A KR 1020140147773A KR 20140147773 A KR20140147773 A KR 20140147773A KR 20160049935 A KR20160049935 A KR 20160049935A
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image
pixel difference
pixel
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정복동
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(주)헬스허브
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Abstract

The present invention reduces overall processing data and storage capacity of a tomographic image, extracts image difference values from a series of tomographic images, processes the location of the lesion of the patient so that it can be read quickly and easily, A tomographic image reading processing system and a tomographic image reading processing method capable of reducing read processing data and storage capacity of a tomographic image and improving reading processing speed of an overall tomographic image, There is a purpose. According to an aspect of the present invention, there is provided a system for reading and processing an image obtained through tomography, comprising: a tomographic image receiving / storing unit for storing a tomographic image; A pixel difference image generation unit for processing to extract and generate a pixel difference image having a pixel difference value with respect to a time-series image from a tomographic image stored in the tomographic image receiving / storing unit; And a readout display unit for highlighting a pixel difference in a series of tomographic images displayed based on a value corresponding to a pixel difference of n images transmitted from the pixel difference image generating unit do.

Description

TECHNICAL FIELD The present invention relates to a tomographic image reading processing system and a tomographic image reading processing method,

The present invention relates to a tomographic image readout processing system and a tomographic image readout processing method, and more particularly, to a tomographic image readout processing system and a tomographic image readout processing method which reduce overall processing data and storage capacity of a tomographic image and extract image difference values from a series of tomographic images The position of the lesion of the patient can be quickly and easily read, and the readout overrange range is set to reduce the readout processing data and the storage capacity of the tomographic image and increase the readout processing speed, thereby improving the readout processing efficiency of the overall tomographic image The present invention relates to a tomographic image reading processing system and a tomographic image reading processing method capable of improving a tomographic image.

As is well known, the term "tomographic imaging" refers to an X-ray examination for imaging only a single section of the human body, which can be performed as a close examination of microscopic lesions that are not well known by simple imaging in one direction will be.

The principle of tomography is, for example, placing the center of motion of the axis on the section to be imaged and then taking the tube and the film on the opposite side of the axis with circular motion, Image) is clearly photographed and all but the surface becomes blurred. In this way, tomographic images at 1 to 2 cm intervals reveal fine lesions. It is also possible to take photographs of front and back, left and right longitudinal sections, and cross sections.

In a CT imaging system, a plurality of x-ray radiographic views of an object produce projection data sets. Each line of projection data represents the integration of the density values of the internal structures in the plane or slice of the subject. From a plurality of projection data sets, a CT imaging system generates two-dimensional sectional images and three-dimensional images for the internal structures of the subject.

The images are obtained through well known image reconstruction algorithms for the projection data sets. These techniques for reconstructing cross-sectional images or three-dimensional images from a plurality of sets of projection data are generally referred to as "tomography ". 1 shows a tomographic image obtained through tomography.

Recently, imaging medical devices such as CT / MR have been developed to capture tomographic images at narrow intervals (for example, several millimeters) in successive positions. The smaller the gap is, the more the number and capacity of acquired tomographic images are increased.

For example, if a 10-cm section is photographed with a 10-mm gap, 10 tomographic images are generated, and if a 25-cm section is photographed with a 0.5-mm gap, 50 tomographic images are generated.

In CT / MR imaging, the gap is reduced, the cross-sectional resolution is increased, the shooting interval is increased, and the resolving power that can be displayed by the unit pixel is increased. That is, the capacity and the number to be processed and transmitted are increased, which means that the capacity and the number of processes to be transmitted and the number of pixels to be transmitted are increased, and pixel information to be identified by the image reader increases exponentially.

For example, in order to increase the resolution for reading accuracy, when the pixel value interval of 255 steps, which is implemented with 8 bits of resolution, is expanded to the pixel value interval of 65536 steps which is implemented as 16 bits, the read accuracy becomes higher, There is a problem in that a minute change in the pixel value at the same position of the photographed image is difficult to be visually recognized.

In addition, when a pixel value interval is expanded in order to increase the reading accuracy in a tomography medical instrument, it causes a burden to transfer data read data and to store data. The constraint on the data transfer bandwidth delays the possibility of using the projection data for reconstruction and display of tomographic images of the subject.

In other words, in the conventional tomographic image reading processing, as the resolution of the recent unit image increases, the pixel value expression period increases, and the number of images in the section increases as the thickness (interval) of the unit image is reduced The capacity of images to be stored, processed, transmitted, and read out is rapidly increased, resulting in a burden of data storage due to the increase in processing efficiency.

(Document 1) Korean Patent Laid-Open Publication No. 10-2011-0096053 (Aug. 26, 2011) (Document 2) Korean Patent Laid-Open Publication No. 10-2010-0099252 (September 10, 2010)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to reduce the entire processing data and storage capacity of a tomographic image, extract image difference values from a series of tomographic images, And the readout processing speed is increased by setting the range for ignoring the extraction value so as to reduce the read processing data and the storage capacity of the tomographic image and improve the read processing efficiency of the overall tomographic image. And an object of the present invention is to provide a photographed image reading processing system and a tomographic image reading processing method.

In addition, the present invention minimizes data capacity of a tomographic image obtained through computerized tomography (CT) imaging or magnetic resonance (MR) imaging to reduce processing data and storage capacity of a tomographic image, The present invention also provides a tomographic image reading processing system and a tomographic image reading processing method capable of improving the data processing efficiency of an overall tomographic image by increasing the processing speed.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and method for controlling the same.

According to one aspect of the present invention, there is provided a system for reading and processing an image obtained through tomography, comprising: a tomographic image receiving / storing unit for storing a tomographic image; A pixel difference image generation unit for processing to extract and generate a pixel difference image having a pixel difference value with respect to a time-series image from a tomographic image stored in the tomographic image receiving / storing unit; And a readout display unit for highlighting a pixel difference in a series of tomographic images displayed based on a value corresponding to a pixel difference of n images transmitted from the pixel difference image generating unit do.

According to an aspect of the present invention, the pixel difference image processing unit may include a reference image and an adjacent image with respect to the time-series image, based on the image classification value, the image number, the meta information of the image including the image configuration information, An image comparison unit for comparing; A pixel difference value extracting unit for extracting pixel differences of the reference image and the neighboring image compared in the image comparing unit; And a difference image generation unit for generating a difference image based on the pixel difference extracted by the pixel difference value extraction unit.

In one aspect of the present invention, the image comparing unit compares an n-th reference image with an (n + 1) -th neighboring image, and the pixel difference value extracting unit extracts a pixel difference value And extracts a pixel difference value based on the generated pixel difference value, and the difference image generation unit generates the difference image according to the pixel value.

According to an aspect of the present invention, the image comparator extracts and compares an image of a specific section or a cumulative image of a specific section, and the pixel difference value extractor extracts an image of a specific section or an accumulation The pixel difference value is generated for the image, and the pixel difference value is extracted based on the generated pixel difference value, and the difference image generating unit is preferably configured to generate the difference image according to the pixel value.

In one aspect of the present invention, the image comparing unit partially compares a predetermined selected or predetermined region of interest (ROI), and the pixel difference value extracting unit generates a pixel difference value with respect to the image of the specific area And extracts a pixel difference value based on the generated pixel difference value, and the difference image generation unit generates the difference image according to the pixel value.

In one aspect of the present invention, the pixel difference value extracting unit extracts a pixel difference value by setting a pixel position coordinate, comparing a reference image with a pixel of an adjacent image at a set position coordinate, It is preferable to generate a difference image having a value according to the following equation.

In one aspect of the present invention, when a plurality of position coordinates in which the pixel difference occurs are given, an initial coordinate value for a position coordinate in which an initial pixel difference is generated is given from a reference coordinate, It is preferable that the coordinate value is given by calculating from the initial coordinate value.

According to an aspect of the present invention, the pixel difference image processing unit may further include an extraction value ignore range setting unit that ignores the extracted value when the range of values extracted by the pixel difference value extraction unit is within a predetermined range .

In one aspect of the present invention, it is preferable to further include a compression / storage unit for compressing and storing data of n tomographic images and n-1 difference images generated by the pixel difference image processing unit.

In one aspect of the present invention, the readout display unit receives the reference image and n-1 difference images for the reference image, sequentially integrates the reference image and n-1 difference images, A reconstruction unit configured to reconstruct the reconstructed image; And a readout identification unit for highlighting the reconstructed series of n-1 tomographic images based on the pixel difference values extracted by the pixel difference image processing unit.

In one aspect of the present invention, it is preferable that the readout identification unit emphasizes black or white or a specific color gradient or color with a different chroma according to the magnitude of the pixel difference value.

In one aspect of the present invention, it is preferable that the readout display unit further includes an enlargement executing unit for enlarging a specific restored image or specifying a range of a specific region to enlarge.

According to another aspect of the present invention, there is provided a method of read-processing an image obtained through tomography, comprising: a tomographic image storing step of receiving n tomographic images transmitted tomographed and storing a received tomographic image; A pixel difference image generation step of extracting and generating a pixel difference image having a pixel difference value with respect to a time-series thermal image from a tomographic image stored in the tomographic image storage step; And a reading and displaying step of highlighting a pixel difference based on a value corresponding to a pixel difference of n images transmitted in the pixel difference image generating step.

According to another aspect of the present invention, the tomographic image storing step stores n tomographic images obtained through tomography and stores the tomographic images in the form of an image file, Comparing the image comparing the reference image and the adjacent image with respect to the time-series image based on the meta information of the image including the configuration information and the pixel information of the image; Extracting pixel differences of the reference image and the neighboring image compared in the image comparison; And generating a difference image based on the pixel difference extracted in the pixel difference value extraction.

In another aspect of the present invention, the image comparison is performed for an n-th reference image and an (n + 1) -th neighboring image, the pixel difference value extraction generates a pixel difference value for a comparison image, It is preferable that the pixel difference value is extracted based on the difference value, and the difference image generation is performed to generate only the difference image according to the pixel value.

According to another aspect of the present invention, the image comparison is performed by extracting and comparing cumulative images of a reference image and a neighboring image of a specific section or a reference image and an adjacent image of a specific section, A difference value is generated, and a pixel difference value is extracted based on the generated pixel difference value, and the difference image generation unit is preferably configured to generate a difference image according to the pixel value.

According to another aspect of the present invention, the image comparison partially compares a region of interest (ROI) of a predetermined reference image or a predetermined reference image with an adjacent image, The pixel difference value is generated based on the generated pixel difference value, and the difference image generation unit generates the difference image according to the pixel value.

According to another aspect of the present invention, the pixel difference value extraction is performed by setting a pixel position coordinate, extracting a pixel difference value by comparing the reference image with a pixel of an adjacent image at a set position coordinate, If the coordinates are plural, the initial coordinate values for the position coordinates at which the first pixel difference is generated from the reference coordinates are given, and for the position coordinates at which the pixel difference occurs, the coordinate values are given by calculating from the initial coordinate value desirable.

According to another aspect of the present invention, there is provided a method of compressing and storing data of n received tomographic images and data of n-1 pixel difference images generated in the pixel difference generation step, The difference image is preferably made to have a value for the coordinate and a data size assigned to the pixel difference value.

According to another aspect of the present invention, it is preferable that the pixel difference image processing step is performed to exclude the extracted pixel difference value when the range of the pixel difference value extracted in the pixel difference value extraction step is within a predetermined range.

According to another aspect of the present invention, the reading and displaying step includes receiving a reference image and n-1 difference images of the reference image, sequentially integrating the reference image and n-1 difference images, A restoration step of restoring an image; And a read identification step of highlighting the reconstructed series of n-1 tomographic images based on the pixel difference values extracted in the pixel difference image processing step.

According to another aspect of the present invention, it is preferable that the read identifying step emphasizes black or white or a specific color gradient or color with a different chroma according to the magnitude of the pixel difference value.

According to another aspect of the present invention, it is preferable that the reading and displaying step includes enlarging a specific reconstructed image or enlarging a specific region by specifying the region.

The tomographic image reading processing system and the tomographic image reading processing method according to the present invention are capable of extracting image difference values from a series of tomographic images taken in tomography equipment and quickly and easily read the position of the patient's lesion And setting an ignored range of the extraction value to reduce read processing data and storage capacity of the tomographic image and increase the read processing speed, thereby improving the read processing efficiency of the overall tomographic image.

In addition, the present invention minimizes the data capacity of a tomographic image to reduce processing data and storage capacity of a tomographic image, and enables quick recovery of a tomographic image, thereby increasing the processing speed, And the treatment efficiency can be improved.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 is a view showing a tomographic image obtained through tomography.
2 is a block diagram schematically showing a configuration of a tomographic image reading processing system according to the present invention.
3 is an illustration showing an example of a read identification method by the tomographic image read processing system according to the present invention.
4 is an explanatory view schematically showing an outline of a processing procedure by the tomographic image reading processing system according to the present invention.
FIG. 5 is a conceptual diagram showing the entire process of a tomographic image according to the present invention.
6 is a flowchart showing a method of reading and processing a tomographic image according to the present invention.
FIG. 7 is an example of a factor used in the pixel difference image generation step in the tomographic image data processing method according to the present invention, in which (a) is a color display and a pixel value / bit is an example, Pixel position coordinates.
8 is an explanatory diagram illustrating an extraction process of a pixel difference image executed in the pixel difference image generation step in the tomographic image data processing method according to the present invention.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Further, terms such as " part, "" unit," " module, "and the like described in the specification may mean a unit for processing at least one function or operation.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

BEST MODE FOR CARRYING OUT THE INVENTION A tomographic image reading processing system and a tomographic image reading processing method according to a preferred embodiment of the present invention will now be described with reference to the accompanying drawings. In the tomographic image data processing system and tomographic image data processing method described below, implementation through a hardware configuration such as a computer including software and / or software capable of performing each component and its operation described below It will be understood by those skilled in the art that the subject matter and detailed description thereof will be omitted.

First, a tomographic image reading processing system according to the present invention will be described with reference to Figs. 2 to 4. Fig. Fig. 2 is a block diagram schematically showing a configuration of a tomographic image readout processing system according to the present invention, Fig. 3 is an exemplary view showing an example of a readout identification method by a tomographic image readout processing system according to the present invention FIG. 4 is an explanatory view schematically showing an outline of a processing procedure by the tomographic image reading processing system according to the present invention, and FIG. 5 is a conceptual diagram showing an entire processing procedure of a tomographic image according to the present invention.

The system for reading and processing tomographic images according to the present invention is configured to receive n tomographic images (images), which are tomographically transmitted and transmitted, as shown in Figs. 2 to 4, and transmit the received tomographic images A tomographic image (video) receiving / storing unit 100 for storing the tomographic image; A pixel difference image generating unit 200 for processing to extract and generate a pixel difference image having a pixel difference value with respect to a time-lapse image from a tomographic image stored in the reception / storage unit 100; And a readout display unit 300 for highlighting a pixel difference with respect to a series of tomographic images displayed on a display such as a monitor based on a value corresponding to a pixel difference of n images transmitted from the pixel difference image generator 200, .

The reception / storage unit 100 receives and receives n pieces of tomographic images (images) of n (n is a natural number) obtained through tomography such as CT photographing or MR photographing, (In the form of an image file) in the storage 110 (see FIG. 5).

The pixel difference image processing unit 200 includes an image comparison unit 210 for comparing the reference image and the adjacent image with respect to the time-series image based on the meta information of the image including the image classification value, the image number, (210); A pixel difference value extractor 220 for extracting pixel differences of the reference image and the neighboring image compared in the image comparing unit 210; And a difference image generation unit 230 for generating a difference image based on the pixel difference extracted by the pixel difference value extraction unit 220.

For example, the image comparison unit 210 of the pixel difference image processing unit 200 may compare the reference image (reference image) with the (n + 1) th (or n- 1) th image number (adjacent image), and the pixel difference value extracting unit 220 generates a pixel difference value with respect to the comparison image to be compared in the image comparing unit 210, And the difference image generation unit 230 generates the difference image according to the pixel value.

The pixel difference extraction unit 220 extracts the pixel difference by setting the position coordinates of each pixel and compares the reference image (reference image or reference image) and the comparison image (comparison image or adjacent image) And the difference image generation unit 230 generates a difference image (difference image) according to the pixel difference value.

Here, the extraction of the pixel difference value in the pixel difference value extracting unit 200 can extract the maximum value of the first-extracted pixel difference values by secondary extraction and calculate the data storage unit, and in another example , The extraction of the pixel difference value is performed by using only the positional coordinate at which the pixel difference occurs and the difference value between the minimum value, the intermediate value, and the maximum value (for example, in bit units) given to white, Can be extracted.

Here, when there are a plurality of position coordinates in which pixel differences occur, a value (order coordinate value) for index coordinates (order coordinate values) is given to the position coordinates where the first pixel difference occurs from the reference coordinates, The position coordinate values are calculated based on the order coordinate values to give the order coordinate values. An example of this will be described in detail in the tomographic image reading processing method below.

The image comparison unit 210 of the pixel difference image processing unit 200 basically compares the entire image of the reference image n with the image of the adjacent image n-1, n + 1 However, the image comparison unit 210 of the pixel difference image processing unit 200 may extract and compare the image of the specific region or the cumulative image of the specific region. The image comparison unit 210 of the pixel difference image processing unit 200 may be configured to partially compare a user's selection or a predetermined region of interest (ROI).

Accordingly, the pixel difference value extractor 220 generates a pixel difference value for an image of a specific section, a cumulative image of a specific section, or a specific region compared in the image comparator 210, And the difference image generation unit 230 generates the difference image according to the pixel value.

In the present invention, the pixel difference image processing unit 200 may ignore the extracted value when the range of the extracted value (extracted pixel difference value) from the pixel difference value extractor 220 is within the preset range set by the user (Excluding the extracted values) of the extracted values.

For example, the extraction value ignore range setting unit 240 does not extract the difference value when the difference value is within the range of 0 to +/- 20, so that it is excluded from the highlighted display in the highlighting process described later, The difference value can be extracted and highlighted in black or white or in a certain color gradient or in different colors in the highlighting process to be described later. Accordingly, the present invention disregards (ignores) very fine pixel differences through the extraction value ignore range setting unit 240 because it can not be visually identified, thereby reducing data processing capacity and improving processing speed, The processing efficiency of the highlighting can be increased.

The present invention compresses and stores data (file) of the received image and compresses and stores the data (file) of the difference image generated by the pixel difference image processing unit 200 (difference image generation unit 230) / Storage unit 400, as shown in FIG.

The compression / storage unit 400 compresses and stores the data of the received n pieces of tomographic images and the data of n-1 difference images (image files) generated by the pixel difference image processing unit 200.

Subsequently, the readout display unit 300 receives the reference image (reference image) and n-1 difference images for the reference image, sequentially integrates the reference image and n-1 difference images, A reconstruction unit (310) configured to reconstruct a photographed image; And a series of n-1 tomographic images restored based on the pixel difference values extracted by the pixel difference image processing unit 200 (pixel difference value extraction unit 220) and displayed on the display And a display identification section 320 for displaying the output in a matrix form).

Here, the read identifying unit 320 may display gradations of monochrome or specific colors, that is, step-by-step contrast of monochrome or color, according to the magnitude (change value) of pixel difference values (For example, yellow, blue, and red) having different chromaticities, preferably including a stepwise contrast. As a result, it is possible to clearly read a lesion state or a position through an emphasis display corresponding to a pixel difference value even for an image which has a change in fine pixel difference value and is difficult to be visually recognized easily.

The readout display unit 300 further includes an enlargement executing unit 330 that enlarges a specific reconstructed image or enlarges a designated region (a lesion site, etc.) by designating a range. When the enlargement unit 330 enlarges a specific reconstructed image, the enlarged enlargement unit 330 can be executed by receiving a two-click command. When the enlargement unit 330 enlarges a specific region, the enlargement unit 330 enlarges the corresponding region. At this time, in both cases, it is made possible to be scaled / expanded through the scroll command.

Next, a method of reading and processing a tomographic image according to the present invention will be described with reference to Fig. 6 is a flowchart showing a method of reading and processing a tomographic image according to the present invention.

As shown in Fig. 6, the tomographic image reading processing method according to the present invention is a method for reading n tomographic images (images) transmitted tomographically and transmitting tomographic images (images) Image storage step S100; A pixel difference image generating step (S200) of extracting and generating a pixel difference image having a pixel difference value with respect to a time-series thermal image from a tomographic image stored in the tomographic image storing step; And a readout display step (S300) of highlighting a pixel difference based on a value corresponding to a pixel difference of n images transmitted in the pixel difference image generating step.

The tomographic image storage step (S100) receives and receives n (n is a natural number) tomographic images (images) obtained through tomography such as CT or MR imaging, ) As a file type (image file type).

In the pixel difference image processing step S200, an image comparison is performed to compare the reference image and the adjacent image with respect to the time-series image based on the meta information of the image including the image classification value, the image number, Step S210: A pixel difference value extracting step (S220) of extracting pixel differences of the reference image and the neighboring image compared in the image comparing step; And a difference image generation step (S230) of generating a difference image based on the pixel difference extracted in the pixel difference value extraction step.

The image comparison step S210 of the pixel difference image processing step S200 may include a reference image (reference image) and an (n + 1) -th image number for the n-th image number (reference image number) ).

The pixel difference value extracting step S220 extracts a pixel difference value based on the pixel difference value generated by generating a pixel difference value with respect to the compared image to be compared, and the difference image generating step S230 calculates a difference To generate an image.

That is, in the pixel difference value extraction step S220, the pixel difference extraction is performed by setting the position coordinates for each pixel and setting the pixels of the reference image (reference image or reference image) and the comparison image (comparison image or adjacent image) And extracts the pixel difference value.

A specific example of the pixel difference value extracting step (S220) will be described with reference to FIGS. 7 and 8. FIG. FIG. 7 shows an example of a factor used for extracting pixel difference values in the tomographic image readout processing method according to the present invention, in which (a) shows a color display and a pixel value / bit, The coordinates of the star position are shown. 8 is an explanatory diagram illustrating an extraction process of a pixel difference image executed in the pixel difference image generating step in the tomographic image reading processing method according to the present invention.

7 and 8 below, the pixel value interval of 255 steps implemented with 8 bits will be described. The present invention is also applicable to the pixel value interval of 65536 steps composed of 16 bits Lt; / RTI >

The pixel difference value extraction step S220 extracts a pixel difference with respect to a time series thermal image based on meta information of the image including the image classification value, image number, image configuration information, and pixel information of the image, .

For example, the pixel difference value extracting step S220 may include comparing a reference image (reference image) for the n-th image number (reference image number) and a comparison image for the (n + 1) The difference image generation step S230 generates a difference image by extracting a pixel difference based on the generated pixel difference value.

Here, in extracting the pixel difference value and extracting the pixel difference value, the pixel difference value is set by setting the pixel-by-pixel position coordinate and comparing the reference image or the reference image (reference image) with the comparison image or the adjacent image Comparison image) are compared with each other to extract a pixel difference value in a position coordinate where a pixel difference is generated, and a difference image (difference image) according to the pixel difference value is generated.

At this time, the extraction of the pixel difference value is performed by using a corresponding position coordinate where a pixel difference occurs and a difference between a minimum value, an intermediate value, and a maximum value (for example, a bit unit) given for white, Only the value is extracted.

For example, as shown in FIG. 8, when comparing the reference image (image) and the comparison image (image) based on 8 bit white, the position coordinates (3, 3) (4, 4) or 10th, the pixel difference is 255 and 128 in the position coordinates (3, 3) and (4, 4) based on the value (0) A pixel value difference will occur.

When there are a plurality of position coordinates in which pixel differences occur, a value (sequence coordinate value: +9) for index coordinates (order coordinate value) is given to the position coordinates where the first pixel difference occurs from the reference coordinates, The position coordinate value (+1 in the case of the position coordinates (4, 4)) is calculated based on the order coordinate values.

The size (1Byte = 8Bit) of the stored data is 25 pixels * 8Bit = 25Byte, and the position coordinates (3Bit = 8Bit) , The position index value 1Byte + 1 pixel 8bit = 2Byte * 2 = 4Byte in (3) and (4,4), respectively.

In the present invention, the pixel difference image processing step S200 is a step of processing the pixel difference image when the range of the extracted value (extracted pixel difference value) in the pixel difference value extracting step S220 is within the preset range set by the user (Excluding the extracted value) of ignoring the extracted value. Accordingly, the present invention can reduce the data processing capacity and improve the processing speed by ignoring (excluding) very fine pixel differences through the extraction value ignoring step.

Meanwhile, the present invention compresses and stores the data (file) of the received image, compresses and stores the data (file) of the difference image generated in the pixel difference image processing step S200 (pixel difference image generating step S220) (S400). ≪ / RTI >

The compressing / storing step (S400) compresses and stores the received n tomographic images and n-1 difference images (image files) generated by the pixel difference image processing unit (200).

Next, the reading and displaying step S300 receives the reference image (reference image) and n-1 difference images for the reference image, sequentially integrates the reference image and n-1 difference images, Reconstructing a reconstructed tomographic image (S310); And a series of n-1 tomographic images reconstructed based on the pixel difference values extracted in the pixel difference image processing step S200 (pixel difference value extraction step S220) (output display in the form of a matrix) (step S320).

Here, the read identifying step S320 may be performed in accordance with the magnitude (change value) of the pixel difference value, as shown in the example of FIG. 3, in a gradation of monochrome or a specific color, (For example, yellow, blue, and red) having different chromaticities, preferably, multicolor colors including step-by-step contrast. As a result, it is possible to clearly read a lesion state or a position through an emphasis display corresponding to a pixel difference value even for an image which has a change in fine pixel difference value and is difficult to be visually recognized easily.

In addition, the reading and displaying step S300 may further include an enlargement executing step of enlarging a specific reconstructed image or specifying a range of a specific region (a lesion site, etc.) to enlarge. In the enlargement execution step S330, when a specific restoration image is enlarged, it can be executed by receiving a two-click command. In the case of enlarging a specific region, when a range of a specific region is specified, Programmed. At this time, in both cases, it is made possible to be scaled / expanded through the scroll command.

In the above description, the image comparison step S210 basically compares the entire image of the reference image n with the image of the adjacent image n-1, n + 1. However, And extracting and comparing the cumulative images for each specific section. In addition, the image comparison step S210 may be performed to partially compare a user's selection or a predetermined region of interest (ROI).

The above-described tomographic image read-out processing system and read-out processing method according to the present invention are capable of extracting image difference values from a series of tomographic images taken by tomographic equipment and quickly and easily read out the lesion positions of the patient And setting the range for ignoring extracted values to reduce read processing data and storage capacity of the tomographic image and increase the read processing speed, thereby improving the read processing efficiency of the overall tomographic image.

In addition, the present invention minimizes the data capacity of a tomographic image to reduce processing data and storage capacity of a tomographic image, and enables quick recovery of a tomographic image, thereby increasing the processing speed, The treatment efficiency can be improved.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Accordingly, the embodiments disclosed herein are for the purpose of describing rather than limiting the technical spirit of the present invention, and it is apparent that the scope of the technical idea of the present invention is not limited by these embodiments. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: tomographic image (image) receiving / storing unit
110: Data storage
200: Pixel difference image generating unit
210:
220: pixel difference value extracting unit
230: Difference image generating unit
240: Extraction value ignore range setting unit
300:
310:
320:
330: Enlargement execution unit
400: compression / storage unit
S100: Step of storing tomographic image
S200: Pixel difference image generation step
S210: image comparison step
S220: Pixel difference value extraction step
S230: Difference image generation step
S300: Read display step
S310: Restoration step
S320: Read identification step

Claims (23)

A system for reading and processing an image obtained through tomography,
A tomographic image receiving / storing unit for storing a tomographic image;
A pixel difference image generation unit for processing to extract and generate a pixel difference image having a pixel difference value with respect to a time-series image from a tomographic image stored in the tomographic image receiving / storing unit; And
And a readout display unit for highlighting a pixel difference in a series of tomographic images displayed based on a value corresponding to a pixel difference of n images transmitted from the pixel difference image generating unit
Tomographic image readout processing system.
The method according to claim 1,
The pixel difference image processing unit
An image comparing unit comparing the reference image and the adjacent image with respect to the time-series image based on the image classification value, the image number, the meta information of the image including the image configuration information, and the pixel information of the image;
A pixel difference value extracting unit for extracting pixel differences of the reference image and the neighboring image compared in the image comparing unit; And
And a difference image generation unit for generating a difference image based on the pixel difference extracted by the pixel difference value extraction unit
Tomographic image readout processing system.
3. The method of claim 2,
The image comparing unit compares the n-th reference image with the n + 1-th neighboring image,
The pixel difference value extraction unit may generate a pixel difference value for a comparison image to be compared in the image comparison unit, extract a pixel difference value based on the generated pixel difference value,
The difference image generator may be configured to generate a difference image according to the pixel value
Tomographic image readout processing system.
3. The method of claim 2,
The image comparator extracts and compares an image of a specific section or a cumulative image of a specific section,
The pixel difference value extraction unit generates a pixel difference value for an image of a specific section or a cumulative image of a specific section compared in the image comparison unit, extracts a pixel difference value based on the generated pixel difference value,
The difference image generator may be configured to generate a difference image according to the pixel value
Tomographic image readout processing system.
3. The method of claim 2,
The image comparison unit partially compares a predetermined selected or predetermined region of interest (ROI)
The pixel difference value extraction unit generates a pixel difference value for the image of the specific region, extracts a pixel difference value based on the generated pixel difference value,
The difference image generator may be configured to generate a difference image according to the pixel value
Tomographic image readout processing system.
6. The method according to any one of claims 3 to 5,
The pixel difference value extractor may set the position coordinates for each pixel, compare the pixels of the image at the set position coordinates, extract the pixel difference value,
The difference image generation unit generates a difference image having a value according to the pixel difference
Tomographic image readout processing system.
The method according to claim 6,
If a plurality of position coordinates in which the pixel difference occurs are given, an initial coordinate value for a position coordinate in which a first pixel difference is generated from a reference coordinate is given, and for the position coordinate in which a pixel difference occurs, the initial coordinate value is calculated And a coordinate value
Tomographic image readout processing system.
3. The method of claim 2,
The pixel difference image processing unit
And an extraction value ignore range setting unit for ignoring the extracted value when the range of the value extracted by the pixel difference value extractor is within the preset range
Tomographic image readout processing system.
6. The method according to any one of claims 3 to 5,
and a compression / storage unit for compressing and storing data of n-number of tomographic images and n-1 difference images generated by the pixel difference image processing unit
Tomographic image readout processing system.
The method according to claim 1,
The readout display unit
A reconstruction unit configured to reconstruct n tomographic images by receiving a reference image and n-1 difference images with respect to the reference image, sequentially integrating the reference image and n-1 difference images; And
And a readout identification unit for highlighting the reconstructed series of n-1 tomographic images based on the pixel difference values extracted by the pixel difference image processing unit
Tomographic image readout processing system.
11. The method of claim 10,
The read-
A gradient of a monochrome or a specific color, or a color having a different chromaticity depending on the magnitude of the pixel difference value
Tomographic image readout processing system.
The method according to claim 10 or 11,
The readout display unit
Further comprising an enlargement executing section for enlarging or enlarging a specific restored image or designating a range of a specific region
Tomographic image readout processing system.
1. A method for read-processing an image obtained through tomography,
A tomographic image storage step of receiving n tomographic images transmitted tomographed and transmitted and storing the received tomographic images;
A pixel difference image generation step of extracting and generating a pixel difference image having a pixel difference value with respect to a time-series thermal image from a tomographic image stored in the tomographic image storage step; And
A readout display step of highlighting a pixel difference based on a value corresponding to a pixel difference of n images transmitted in the pixel difference image generation step;
And reading the tomographic image of the tomographic image.
14. The method of claim 13,
The tomographic image storage step stores n tomographic images obtained through tomography and stores the tomographic images in an image file format,
Wherein the pixel difference image processing step compares the reference image and the adjacent image with respect to the time-series image based on the image classification value, the image number, the meta information of the image including the image configuration information, and the pixel information of the image; Extracting pixel differences of the reference image and the neighboring image compared in the image comparison; And generating a difference image based on the pixel difference extracted in the pixel difference value extraction
A tomographic image read processing method.
15. The method of claim 14,
The image comparison is performed for an n-th reference image and an (n + 1) -th adjacent image,
The pixel difference value extraction may include generating a pixel difference value for the comparison image, extracting a pixel difference value based on the generated pixel difference value,
The difference image generation is performed to generate only the difference image according to the pixel value
A tomographic image read processing method.
15. The method of claim 14,
The image comparison is performed by extracting and comparing the reference image of the specific section and the adjacent image or the cumulative image of the reference image of the specific section and the adjacent image,
The pixel difference value extraction may include generating a pixel difference value for the comparison image, extracting a pixel difference value based on the generated pixel difference value,
The difference image generator may be configured to generate a difference image according to the pixel value
A tomographic image read processing method.
15. The method of claim 14,
The image comparison partially compares a region of interest (ROI) of a predetermined selected or preset reference image with an adjacent image,
The pixel difference value extraction unit generates a pixel difference value for the image of the specific area, extracts a pixel difference value based on the generated pixel difference value,
The difference image generator may be configured to generate a difference image according to the pixel value
A tomographic image read processing method.
18. The method according to any one of claims 15 to 17,
The pixel difference value extraction is performed by setting the position coordinates for each pixel, comparing the reference image and the pixels of the adjacent image at the set position coordinates, extracting the pixel difference value,
If a plurality of position coordinates in which the pixel difference occurs are given, an initial coordinate value for a position coordinate in which a first pixel difference is generated from a reference coordinate is given, and for the position coordinate in which a pixel difference occurs, the initial coordinate value is calculated And a coordinate value
A tomographic image read processing method.
18. The method according to any one of claims 15 to 17,
And a compression / storage step of compressing and storing data of the received n tomographic images and data of n-1 pixel difference images generated in the pixel difference generation step,
Wherein the pixel difference image is configured to have a value for the coordinate and a data size assigned to the pixel difference value
A tomographic image read processing method.
15. The method of claim 14,
The pixel difference image processing step
When the range of the pixel difference value extracted in the pixel difference value extraction step is within a predetermined range, the extracted pixel difference value is excluded
A tomographic image read processing method.
14. The method of claim 13,
The reading and displaying step
Reconstructing the n tomographic images by receiving a reference image and n-1 difference images of the reference image, sequentially integrating the reference image and n-1 difference images; And
And a read identification step of highlighting the reconstructed series of n-1 tomographic images based on the pixel difference values extracted in the pixel difference image processing step
A tomographic image read processing method.
22. The method of claim 21,
The read identification step
A gradient of a monochrome or a specific color, or a color having a different chromaticity depending on the magnitude of the pixel difference value
A tomographic image read processing method.
23. The method of claim 21 or 22,
The reading and displaying step
Enlarging a specific reconstructed image or specifying a range of a specific region and enlarging it
A tomographic image read processing method.
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