CN108022229A - A kind of image processing method and device - Google Patents
A kind of image processing method and device Download PDFInfo
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- CN108022229A CN108022229A CN201610971872.1A CN201610971872A CN108022229A CN 108022229 A CN108022229 A CN 108022229A CN 201610971872 A CN201610971872 A CN 201610971872A CN 108022229 A CN108022229 A CN 108022229A
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- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 238000002591 computed tomography Methods 0.000 claims abstract description 75
- 238000000034 method Methods 0.000 claims abstract description 31
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- 238000012790 confirmation Methods 0.000 claims description 10
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- 230000002123 temporal effect Effects 0.000 description 3
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- 238000002059 diagnostic imaging Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30048—Heart; Cardiac
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Abstract
The invention discloses a kind of image processing method, and for the quality of preview CT reconstruction images, avoiding time waste, this method caused by secondary image is rebuild includes：Obtain electrocardiosignal and CT scan data；Building as the period for user's selection is received, is built as the period is within the period of electrocardiosignal；Determine preview image quantity, built building as determining that preview image quantity is corresponding in the period as time point；To building as time point corresponding CT scan data progress image reconstruction, generate a preview image；Preview image is shown.The invention also discloses a kind of image processing apparatus.
Description
Technical field
The present invention relates to field of computer technology, and in particular to a kind of medical imaging field image processing method and device.
Background technology
Due to the periodic pulses characteristic of heart, carrying out CT to heart, (Computed Tomography, electronics calculate
Machine tomoscan) scanning when, generally continue 5 to 6 heart beat cycles using retrospective scan mode, i.e. scanning process, scanning
After the completion of, by doctor by observing the electrocardiosignal in scanning process, select the period of electrocardiosignal relative smooth, completion pair
The reconstruction of the period corresponding one group of scan image.
But the period for observing by the naked eye electrocardiosignal by doctor in reconstruction image and selecting to build picture carries out figure
As rebuilding, if the quality of reconstruction image is undesirable, it is also necessary to reselect the period for carrying out building picture and re-start image
Rebuild, reselect and secondary image is rebuild and causes temporal obvious waste.
The content of the invention
In view of this, the present invention provides a kind of image processing method and device, to solve according to electrocardio to be believed in the prior art
Number selection build as the period carry out image reconstruction during may cause the time waste technical problem.
To solve the above problems, technical solution provided by the invention is as follows：
A kind of image processing method, the described method includes：
Obtain electrocardiosignal and CT scan data；
Building as the period for user's selection is received, it is described to build as the period is within the period of the electrocardiosignal；
Determine preview image quantity, built in described build as determining that the preview image quantity is corresponding in the period as the time
Point；
Build as time point corresponding CT scan data progress image reconstruction, generate a preview image to described；
The preview image is shown.
Correspondingly, the method further includes：
After user is received to the confirmation message of the preview image, built to described as period corresponding CT scan number
According to image reconstruction is carried out, CT scan image is generated.
Correspondingly, the method further includes：
Plain film scan image is obtained, receives the designated position information on the plain film scan image, the specific bit confidence
The quantity of breath is one or more；
It is described to be built to described as time point corresponding CT scan data progress image reconstruction, generate a preview image, including：
Built to described as time point and the corresponding CT scan data of the designated position information carry out image reconstruction, generation
Preview image.
Correspondingly, the method further includes：
After user is received to the confirmation message of the preview image, built to described as period and the specific bit
Confidence ceases corresponding CT scan data and carries out image reconstruction, generates CT scan image.
Correspondingly, the definite preview image quantity, including：
The preview image quantity of user's setting is received, the preview image quantity that the user sets is determined as preview image
Quantity；
Alternatively, the subregion quantity for showing preview image is determined as preview image quantity.
A kind of image processing apparatus, described device include：
First acquisition unit, for obtaining electrocardiosignal and CT scan data；
First receiving unit, it is described to build as the period believes in the electrocardio for receiving building the picture period for user's selection
Number period in；
First determination unit, for determining preview image quantity；
Second determination unit, for being built in described build as determining that the preview image quantity is corresponding in the period as the time
Point；
Preview unit, for being built to described as time point corresponding CT scan data carries out image reconstruction, generation preview graph
Picture；
Display unit, for being shown to the preview image.
Correspondingly, described device further includes：
First generation unit, for after user is received to the confirmation message of the preview image, to it is described build picture when
Between the corresponding CT scan data of section carry out image reconstruction, generate CT scan image.
Correspondingly, described device further includes：
Second receiving unit, for obtaining plain film scan image, receives the specific bit confidence on the plain film scan image
Breath, the quantity of the designated position information is one or more；
The preview unit is specifically used for：
Built to described as time point and the corresponding CT scan data of the designated position information carry out image reconstruction, generation
Preview image.
Correspondingly, described device further includes：
Second generation unit, for after user is received to the confirmation message of the preview image, to it is described build picture when
Between section and the corresponding CT scan data of the designated position information carry out image reconstruction, generate CT scan image.
Correspondingly, first determination unit includes：
First determination subelement, for receiving the preview image quantity of user's setting, the preview graph that the user is set
As quantity is determined as preview image quantity；
Alternatively,
Second determination subelement, for the subregion quantity for showing preview image to be determined as preview image quantity.
It can be seen from the above that the embodiment of the present invention has the advantages that：
The embodiment of the present invention user to build made choice as the period after not directly to building as period corresponding CT
Scan data carries out image reconstruction, but first determines preview image quantity, is building as determining that several were built as the time in the period
Point, generates a preview image to building as time point corresponding CT scan data carries out image reconstruction, so first to building as in the period
The effect of image reconstruction has carried out preview, in the case where image effect need not preferably be reselected and built as the period, then to building
As the complete image reconstruction of period corresponding CT scan data progress, time waste caused by secondary image is rebuild is avoided,
Differentiate that picture quality provides a convenient efficiently method for user.Furthermore it is also possible to specifying image-region to carry out preview, it is easy to
User checks the building as effect of key area in image.
Brief description of the drawings
Fig. 1 is the flow chart of the image processing method embodiment one provided in the embodiment of the present invention；
Fig. 2 is the schematic diagram of center telecommunications number of the embodiment of the present invention；
Fig. 3 is the flow chart of the image processing method embodiment two provided in the embodiment of the present invention；
Fig. 4 is the schematic diagram of the image processing apparatus embodiment provided in the embodiment of the present invention.
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Mode is applied to be described in further detail the embodiment of the present invention.
In the prior art, after the completion of the retrospective scannings of CT are carried out to heart, by doctor by observing in scanning process
Electrocardiosignal, selects the certain time period in electrocardiosignal to carry out image reconstruction, due to carrying out complete image reconstruction calculation amount
Larger, speed is slower, if it find that the quality of reconstruction image is undesirable after the completion of image reconstruction, it is also necessary to reselects progress
Build the period of picture and re-start image reconstruction, temporal a large amount of wastes will necessarily be caused.
The embodiment of the present invention provides a kind of picture quality rapid preview function, user can be helped to be quickly found out most satisfied
Build as the period, save and attempt to rebuild the image temporal in different time sections.In addition, user can be with embodiments of the present invention
The position range of preview is specified, the picture quality of some position of critical concern, rebuilds image and the display in this region, selected for user
Select optimum quality image and help is provided.
It is shown in Figure 1 based on above-mentioned thought, the image processing method embodiment provided in the embodiment of the present invention is provided
One, it may comprise steps of：
Step 101：Obtain electrocardiosignal and CT scan data.
It is shown in Figure 2 when carrying out CT scan to heart, it is necessary to gather electrocardiosignal at the same time, it is showing for electrocardiosignal
It is intended to, the abscissa of electrocardiosignal is generally time shaft, and the amplitude of ordinate can be magnitude of voltage, more steady in electrocardiosignal
Period in, represent heart and be in opposing stationary state, in the period CT scan data carry out image reconstruction meeting
There is more clearly image effect.CT scan data is the data collected during CT scan.
Step 102：Building as the period for user's selection is received, it is described to build as the period is within the period of electrocardiosignal.
User can check electrocardiosignal, when selecting one section of conduct therein to build picture within the period that electrocardiosignal produces
Between section, built according to the above description, user is selected as the period can determine the quality of reconstruction image.Receive user's choosing
That selects built as the period, such as the period of generation electrocardiosignal is 0s-5s, and user can be within the period of the electrocardiosignal
The scope of selection 10ms-20ms, which is used as, built as the period.
Step 103：Determine preview image quantity, built building as determining that preview image quantity is corresponding in the period as the time
Point.
In order to quickly determine to building the picture quality after image reconstruction is carried out as the CT scan data in the period, the present invention
Need first building as determining that several were built as time point in the period in embodiment, then obtain and build as time point corresponding preview graph
Picture, so that user checks picture quality by preview image.
In some possible implementations of the invention, determining the specific implementation of preview image quantity can include：
The preview image quantity of user's setting is received, the preview image quantity that user sets is determined as preview image number
Amount；Alternatively, the subregion quantity for showing preview image is determined as preview image quantity.
Preview image quantity may be set according to actual conditions in user, such as sets preview image quantity as 10, in user
In the case of not setting preview image quantity, preview image number can also be determined as according to the subregion quantity of preview image
Amount, for example, the grid that the region of display preview image is 3*3, then the subregion quantity of preview image is 9, can show 9 at the same time
Preview image is opened, the subregion quantity for showing preview image is determined as preview image quantity, can be in display preview image
Region shows whole preview images at the same time, and preview image is checked easy to user.
In practical applications, will can build as the period according to preview image quantity is divided into several sections, each section
Interior one point of selection, which is used as, to be built as time point, or was determined that a point is used as at interval of fixed duration according to preview image quantity and built
As time point, built with ensureing to build as time point is evenly distributed on as in the period.
Step 104：To building as time point corresponding CT scan data progress image reconstruction, generate a preview image.
Step 105：Preview image is shown.
In some of the invention possible implementations, the present embodiment can also receive user to preview image really
After recognizing information, to building as period corresponding CT scan data carries out image reconstruction, generation CT scan image.
In the present embodiment, only it can generate to building as time point corresponding CT scan data progress image reconstruction and build picture
Some width preview images in period, if user is unsatisfied with the picture quality of preview image, can reselect and build picture
Period, if user is satisfied with the picture quality of preview image, can trigger to building as period corresponding CT scan number
According to complete image reconstruction is carried out, CT scan image is generated.
In this way, the embodiment of the present invention user to build made choice as the period after not directly to build as the period correspond to
CT scan data carry out image reconstruction, but first determine preview image quantity, building as determining that several build picture in the period
At time point, generate a preview image to building as time point corresponding CT scan data carries out image reconstruction, so first to building as the time
The effect of image reconstruction has carried out preview in section, in the case where image effect need not preferably be reselected and built as the period, then
To building as the complete image reconstruction of period corresponding CT scan data progress, time wave caused by secondary image is rebuild is avoided
Take, differentiate that picture quality provides a convenient efficiently method for user.
It is shown in Figure 3, the image processing method embodiment two provided in the embodiment of the present invention is provided, can include with
Lower step：
Step 301：Obtain plain film scan image, electrocardiosignal and CT scan data.
Before CT scan is carried out, a plain film scanning can also be carried out, the plain film scan image of scanned position is obtained, puts down
Piece scan image can be understood as carrying out the range image of CT scan, can also be to plain film scanning figure after acquisition plain film scan image
As being shown.After CT scan is carried out to heart, electrocardiosignal and CT scan data can be got.
Step 302：The designated position information on plain film scan image is received, the quantity of the designated position information is one
It is or multiple.
In the present embodiment, user can select one or more preview areas, and preview area is that user wishes emphasis
The position checked, that is, input the designated position information of one or more, then can receive the specific bit on plain film scan image
Confidence ceases, and the quantity of designated position information is one or more.User can be referred to by way of input position numerical value to input
Determine positional information, a region can also be selected on plain film scan image, then automatically identify the positional information in the region
As designated position information.Designated position information is determined according to selection region of the user on plain film scan image, for user
For using more convenient, and can be realized more flexible with the multiple designated position information of simultaneous selection.In addition, if user is led to
The mode of input position numerical value is crossed to input designated position information, can also be shown on plain film scan image selected by user
Region, easy to user intuitively determine designated position information whether input correctly.
Step 303：Building as the period for user's selection is received, it is described to build as the period is within the period of electrocardiosignal.
Step 304：Determine preview image quantity, built building as determining that preview image quantity is corresponding in the period as the time
Point.
In some possible implementations of the invention, determining the specific implementation of preview image quantity can include：
The preview image quantity of user's setting is received, the preview image quantity that user sets is determined as preview image number
Amount；Alternatively, the subregion quantity for showing preview image is determined as preview image quantity.
Step 303-304 is similar with step 102-103, and related description may refer to above-described embodiment, and details are not described herein.
Step 305：To building as time point and the corresponding CT scan data of designated position information carry out image reconstruction, generation
Preview image.
Step 306：Preview image is shown.
In some of the invention possible implementations, the present embodiment can also receive user to preview image really
After recognizing information, to building as period and the corresponding CT scan data of designated position information carry out image reconstruction, generation CT scan
Image.
In the present embodiment, only to building as time point and the corresponding CT scan data of designated position information carry out image weight
Build, can generate build as some width in the period to designated position carry out preview preview image, it is this expansion build as interval,
Reduce and build as the image space formula of building of scope is accelerated very much, easy to user to reconstruction image than rebuilding the speed image of full sequence
Quality carries out preview.If user is unsatisfied with the picture quality of preview image, it can reselect and build as the period, if with
Family is satisfied with the picture quality of preview image, then can trigger to building as period corresponding CT scan data is completely schemed
As rebuilding, alternatively, to building as period and the corresponding CT scan data progress image reconstruction of designated position information, generation CT sweep
Trace designs picture.
In this way, the embodiment of the present invention user to build made choice as the period after not directly to build as the period correspond to
CT scan data carry out image reconstruction, but first determine preview image quantity, building as determining that several build picture in the period
At time point, generate a preview image to building as time point corresponding CT scan data carries out image reconstruction, so first to building as the time
The effect of image reconstruction has carried out preview in section, in the case where image effect need not preferably be reselected and built as the period, then
To building as the complete image reconstruction of period corresponding CT scan data progress, time wave caused by secondary image is rebuild is avoided
Take, differentiate that picture quality provides a convenient efficiently method for user.Furthermore it is also possible to specifying image-region to carry out preview,
The building as effect of key area in image is checked easy to user.
It is shown in Figure 4, a kind of image processing apparatus embodiment provided in the embodiment of the present invention is provided, can be wrapped
Include：
First acquisition unit 401, for obtaining electrocardiosignal and CT scan data.
First receiving unit 402, for receiving the building as the period of user's selection, build as the period electrocardiosignal when
Between in section.
First determination unit 403, for determining preview image quantity.
In some possible implementations of the invention, the first determination unit can include：
First determination subelement, for receiving the preview image quantity of user's setting, by the preview image number of user's setting
Amount is determined as preview image quantity；
Alternatively, the second determination subelement, for the subregion quantity for showing preview image to be determined as preview image quantity.
Second determination unit 404, for being built as determining that preview image quantity is corresponding in the period as time point building.
Preview unit 405, for building as time point corresponding CT scan data carries out image reconstruction, generation preview graph
Picture.
Display unit 406, for being shown to preview image.
In some possible implementations of the invention, the image processing apparatus embodiment provided in the embodiment of the present invention is also
It can include：
First generation unit, for after user is received to the confirmation message of preview image, being corresponded to building the picture period
CT scan data carry out image reconstruction, generate CT scan image.
In some possible implementations of the invention, the image processing apparatus embodiment provided in the embodiment of the present invention is also
It can include：
Second receiving unit, for obtaining plain film scan image, receives the designated position information on plain film scan image, refers to
The quantity for determining positional information is one or more；
Then preview unit specifically can be used for：
To building as time point and the corresponding CT scan data of designated position information carry out image reconstruction, generation preview graph
Picture.
In some possible implementations of the invention, the image processing apparatus embodiment provided in the embodiment of the present invention is also
It can include：
Second generation unit, for after user is received to the confirmation message of preview image, to building as the period and
Information corresponding CT scan data in designated position carries out image reconstruction, generates CT scan image.
In this way, the embodiment of the present invention user to build made choice as the period after not directly to build as the period correspond to
CT scan data carry out image reconstruction, but first determine preview image quantity, building as determining that several build picture in the period
At time point, generate a preview image to building as time point corresponding CT scan data carries out image reconstruction, so first to building as the time
The effect of image reconstruction has carried out preview in section, in the case where image effect need not preferably be reselected and built as the period, then
To building as the complete image reconstruction of period corresponding CT scan data progress, time wave caused by secondary image is rebuild is avoided
Take, differentiate that picture quality provides a convenient efficiently method for user.Furthermore it is also possible to specifying image-region to carry out preview,
The building as effect of key area in image is checked easy to user.
It should be noted that each embodiment is described by the way of progressive in this specification, each embodiment emphasis is said
Bright is all the difference with other embodiment, between each embodiment identical similar portion mutually referring to.For reality
For applying system disclosed in example or device, since it is corresponded to the methods disclosed in the examples, so fairly simple, the phase of description
Part is closed referring to method part illustration.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in process, method, article or equipment including the key element.
Can directly it be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (10)
- A kind of 1. image processing method, it is characterised in that the described method includes：Obtain electrocardiosignal and CT scan data；Building as the period for user's selection is received, it is described to build as the period is within the period of the electrocardiosignal；Determine preview image quantity, built in described build as determining that the preview image quantity is corresponding in the period as time point；Build as time point corresponding CT scan data progress image reconstruction, generate a preview image to described；The preview image is shown.
- 2. according to the method described in claim 1, it is characterized in that, the method further includes：After user is received to the confirmation message of the preview image, to it is described build as period corresponding CT scan data into Row image reconstruction, generates CT scan image.
- 3. according to the method described in claim 1, it is characterized in that, the method further includes：Plain film scan image is obtained, receives the designated position information on the plain film scan image, the designated position information Quantity is one or more；It is described to be built to described as time point corresponding CT scan data progress image reconstruction, generate a preview image, including：Built to described as time point and the corresponding CT scan data of the designated position information carry out image reconstruction, generation preview Image.
- 4. according to the method described in claim 3, it is characterized in that, the method further includes：After user is received to the confirmation message of the preview image, built to described as period and the specific bit confidence Cease corresponding CT scan data and carry out image reconstruction, generate CT scan image.
- 5. according to the method described in claim 1, it is characterized in that, the definite preview image quantity, including：The preview image quantity of user's setting is received, the preview image quantity that the user sets is determined as preview image number Amount；Alternatively, the subregion quantity for showing preview image is determined as preview image quantity.
- 6. a kind of image processing apparatus, it is characterised in that described device includes：First acquisition unit, for obtaining electrocardiosignal and CT scan data；First receiving unit, it is described to build as the period is in the electrocardiosignal for receiving building the picture period for user's selection In period；First determination unit, for determining preview image quantity；Second determination unit, for being built in described build as determining that the preview image quantity is corresponding in the period as time point；Preview unit, for being built to described as time point corresponding CT scan data progress image reconstruction, generates a preview image；Display unit, for being shown to the preview image.
- 7. device according to claim 6, it is characterised in that described device further includes：First generation unit, for after user is received to the confirmation message of the preview image, being built to described as the period Corresponding CT scan data carries out image reconstruction, generates CT scan image.
- 8. according to the method described in claim 6, it is characterized in that, described device further includes：Second receiving unit, for obtaining plain film scan image, receives the designated position information on the plain film scan image, institute The quantity for stating designated position information is one or more；The preview unit is specifically used for：Built to described as time point and the corresponding CT scan data of the designated position information carry out image reconstruction, generation preview Image.
- 9. device according to claim 8, it is characterised in that described device further includes：Second generation unit, for after user is received to the confirmation message of the preview image, being built to described as the period And the corresponding CT scan data of the designated position information carries out image reconstruction, generates CT scan image.
- 10. according to the method described in claim 1, it is characterized in that, first determination unit includes：First determination subelement, for receiving the preview image quantity of user's setting, the preview image number that the user is set Amount is determined as preview image quantity；Alternatively,Second determination subelement, for the subregion quantity for showing preview image to be determined as preview image quantity.
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| CN201610971872.1A CN108022229A (en) | 2016-10-31 | 2016-10-31 | A kind of image processing method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265120A (en) * | 2019-05-09 | 2019-09-20 | 上海联影医疗科技有限公司 | Medical image processing method, device, computer equipment and storage medium |
| CN111175701A (en) * | 2019-12-31 | 2020-05-19 | 珠海纳睿达科技有限公司 | Method and device for simultaneously previewing and displaying multi-layer data of meteorological data and readable medium |
| WO2023125095A1 (en) * | 2021-12-31 | 2023-07-06 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for image reconstruction |
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