CN109602429A - Low emissivity amount digital contrast instrument - Google Patents
Low emissivity amount digital contrast instrument Download PDFInfo
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- CN109602429A CN109602429A CN201811479769.0A CN201811479769A CN109602429A CN 109602429 A CN109602429 A CN 109602429A CN 201811479769 A CN201811479769 A CN 201811479769A CN 109602429 A CN109602429 A CN 109602429A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/48—Diagnostic techniques
- A61B6/481—Diagnostic techniques involving the use of contrast agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
Abstract
The present invention relates to a kind of Low emissivity amount digital contrast instrument, comprising: control equipment, intervention ray contrast structure, real-time controlling unit and real-time display unit occur for digital contrast instrument body frame structure, including radiography head, auto iris control equipment, high pressure;The radiography head is connect with auto iris control equipment, and the high pressure occurs control equipment and connect with auto iris control equipment;The real-time controlling unit is connect with the intervention ray contrast structure, is controlled for the intervention ray contrast mode to the intervention ray contrast structure;Number configures equipment, identifies that equipment and radiography head are connect with position respectively, determines the radiography head following unitary time radiography number for receiving identification types, and based on the identification types.Through the invention, the automatization level of digital contrast instrument is improved.
Description
Technical field
The present invention relates to digital contrast instrument field more particularly to a kind of Low emissivity amount digital contrast instrument.
Background technique
Digital contrast instrument is made of electronic cassette, scanning monitor, system controller, image display monitor central monitoring system etc., is straight
It connects and x-ray photon is converted into digitized image by electronic cassette, be a kind of sensu lato direct digital mammography.And it is narrow
Direct Digital Radiography, that is, DDR in justice is often referred to take the photograph using the digital radiation of the direct switch technology of image of flat panel detector
Shadow is direct digital radiograph system truly.Amorphous silicon flat panel DR is broadly divided into according to type photodetector
(mainstream), amorphous selenium flat-bed DR and CCD DR (mainstream);It is divided into suspention DR and column (UC arm) DR according to rack construction.
Summary of the invention
It is needed manually to solve Contemporary Digital angiographic instrument for the radiography number of the unit time of different human body component
The technical issues of setting, the present invention provides a kind of Low emissivity amount digital contrast instrument.
For this purpose, the present invention needs to have at following two crucial inventive point: (1) image bipolar pulse noise width after treatment
When degree is greater than default bipolar pulse noise amplitude, circulating median filter process is executed to image, after the processing of acquisition
The bipolar pulse noise amplitude of image be no more than default bipolar pulse noise amplitude;(2) on the basis of high-precision image processing
On, the human body of current radiography is identified, it is true with the distance based on the human body apart from human heart or brain
The radiography number of following unitary time is determined, to reduce the damage to human body key position.
According to an aspect of the present invention, a kind of Low emissivity amount digital contrast instrument is provided, the angiographic instrument includes:
Control equipment, intervention occur for digital contrast instrument body frame structure, including radiography head, auto iris control equipment, high pressure
Ray contrast structure, real-time controlling unit and real-time display unit;The radiography head is connect with auto iris control equipment,
The high pressure occurs control equipment and connect with auto iris control equipment;The real-time controlling unit and the intervention ray
The connection of radiography structure is controlled for the intervention ray contrast mode to the intervention ray contrast structure;Number, which is matched, to be installed
It is standby, it identifies that equipment and radiography head are connect with position respectively, is determined for receiving identification types, and based on the identification types
The radiography head following unitary time radiography number;Median filtering equipment connect with the digital contrast instrument body frame structure, is used for
It receives the real-time of digital contrast instrument body frame structure output and shines shadow image, the real-time shadow image that shines is executed at median filtering
Reason, to obtain and export corresponding median filtering image;Subgraph extract equipment connect with the median filtering equipment, is used for
Real-time photograph shadow image and the median filtering image are received, and the real-time shadow image that shines is held based on default division size
Row subgraph dividing processing executes the median filtering image based on default division size with obtaining multiple first subgraphs
Subgraph dividing processing, to obtain multiple second subgraphs;Representative processing equipment is connect with the subgraph extract equipment,
It is flat for carrying out real-time multiple bipolar pulse noise amplitudes according to multiple first subgraphs of predeterminated position in shadow image
Homogenizing processing, with obtain handle before bipolar pulse noise amplitude, be also used to by the median filtering image predeterminated position it is more
Multiple bipolar pulse noise amplitudes of a second subgraph average processing, with bipolar pulse noise width after being handled
Degree;Noise eliminating equipment is connect, for the bipolar pulse noise after the processing received with the representative processing equipment
When amplitude is greater than default bipolar pulse noise amplitude, circulating median filter process is executed to the median filtering image, directly
Bipolar pulse noise amplitude to acquisition treated image is less than default bipolar pulse noise amplitude, and the place that will acquire
Image after reason eliminates image output as noise;Position identifies equipment, connect with the noise eliminating equipment, for receiving
It states noise and eliminates image, and image is eliminated to the noise using different human body position profile and executes silhouette contrast, will compare
The corresponding position type of highest human body profile is spent to export as identification types;Wherein, based on the identification types
Determine that the radiography head following unitary time radiography number includes: that the position of the identification types is got over apart from human heart position
Closely, the radiography head following unitary time radiography number determined is fewer.
More specifically, in the Low emissivity amount digital contrast instrument: determining the radiography based on the identification types
Head following unitary time radiography number includes: the position of the identification types institute closer apart from human body brain localization, determining
It is fewer to state radiography head following unitary time radiography number.
More specifically, in the Low emissivity amount digital contrast instrument: the noise eliminating equipment is also used to receiving
The processing after bipolar pulse noise amplitude when being less than or equal to default bipolar pulse noise amplitude, by the median filtering image
Image is eliminated as noise, and exports the noise and eliminates image.
More specifically, in the Low emissivity amount digital contrast instrument: the noise eliminating equipment further includes that amplitude receives
The sub- equipment of sub- equipment, circular treatment and image export sub- equipment, and the sub- equipment of circular treatment receives son with the amplitude respectively
Equipment exports sub- equipment with described image and connects.
More specifically, in the Low emissivity amount digital contrast instrument: the sub- equipment of circular treatment is for receiving
The processing after bipolar pulse noise amplitude when being greater than default bipolar pulse noise amplitude, the median filtering image is executed
Circulating median filter process, until the bipolar pulse noise amplitude of acquisition treated image is more than default bipolar pulse
Noise amplitude
More specifically, in the Low emissivity amount digital contrast instrument: described default in the representative processing equipment
Position is the central location for handling image, that is, is directed to the median filtering image or described real-time according to shadow image, the default position
It is set to the median filtering image or the real-time central location according to shadow image.
More specifically, in the Low emissivity amount digital contrast instrument, further includes:
Histogram equalization equipment, region segmentation equipment, mean square deviation extract equipment and data enhancement device are located at the noise
It eliminates between equipment and position identification equipment.
More specifically, in the Low emissivity amount digital contrast instrument: the histogram equalization equipment disappears with the noise
Except equipment connects, image is eliminated for receiving the noise, is eliminated for the noise and executes following movement in image, to described
Noise eliminates image and executes histogram equalization processing, to obtain corresponding balanced image;The region segmentation equipment is for detecting
The area of the maximum target of the equilibrium image, the area based on the maximum target carry out average formula to the balanced image
Region segmentation, to obtain corresponding multiple images region.
More specifically, in the Low emissivity amount digital contrast instrument: the mean square deviation extract equipment and the region point
Equipment connection is cut, is calculated for carrying out the mean square deviation of each pixel value of each pixel in it to each image-region,
To obtain corresponding region mean square deviation, and using region mean square deviation be more than mean deviation threshold each image-region as each wait hold
The output of row region;The data enhancement device is connect with the mean square deviation extract equipment, is set for receiving the mean square deviation extraction
Each pending region of standby output, executes image enhancement processing to each pending region, to obtain each number respectively
According to enhancing region, and each data enhancing region entirety is replaced into the noise elimination image and is sent to the position identification
Equipment.
More specifically, in the Low emissivity amount digital contrast instrument: power line communications interface, with the histogram equalization
Equipment connection eliminates image for receiving and sending the noise;Wherein, in the region segmentation equipment, based on described in most
The region segmentation that the area of big target carries out average formula to the balanced image includes: that the area of the maximum target is bigger, right
The area for the image-region obtained that the equilibrium image carries out region segmentation is bigger.
Specific embodiment
The embodiment of Low emissivity amount digital contrast instrument of the invention will be described in detail below.
X-ray image information is converted digital image information by digital contrast instrument, and exposure latitude is relative to common
Intensifying screen-film system embodies certain advantages: CR and DR is since using digital technology, dynamic range is wide, there is very wide exposure
Light tolerance, thus allow the technical error in photograph that can also obtain very even if being difficult to the position grasped in some conditions of exposures
Good image;CR and DR can need to carry out various post processing of image according to clinic, such as various image filterings, window width and window level tune
The function abundant such as section, amplification roaming, image mosaic and distance, area, density measure is that the details in diagnostic imaging is seen
It examines, front and back comparison, quantitative analysis offer technical support.
In order to overcome above-mentioned deficiency, the present invention has built a kind of Low emissivity amount digital contrast instrument, can effectively solve the problem that phase
The technical issues of answering.
The Low emissivity amount digital contrast instrument shown according to an embodiment of the present invention includes:
Control equipment, intervention occur for digital contrast instrument body frame structure, including radiography head, auto iris control equipment, high pressure
Ray contrast structure, real-time controlling unit and real-time display unit;
The radiography head is connect with auto iris control equipment, and control equipment and the automatic light occur for the high pressure
Circle control equipment connection;
The real-time controlling unit is connect with the intervention ray contrast structure, for the intervention ray contrast structure
Intervention ray contrast mode controlled;
Number configures equipment, identifies that equipment and radiography head are connect with position respectively, for receiving identification types, and is based on
The identification types determine the radiography head following unitary time radiography number;
Median filtering equipment is connect, for receiving the digital contrast instrument master with the digital contrast instrument body frame structure
The real-time of framework output shines shadow image, executes median filter process to the real-time shadow image that shines, corresponding to obtain and export
Median filtering image;
Subgraph extract equipment is connect with the median filtering equipment, described real-time according to shadow image and described for receiving
Median filtering image, and subgraph dividing processing is executed to the real-time shadow image that shines based on default division size, it is more to obtain
A first subgraph executes subgraph dividing processing to the median filtering image based on default division size, multiple to obtain
Second subgraph;
Representative processing equipment is connect with the subgraph extract equipment, for presetting real-time shine in shadow image
Multiple bipolar pulse noise amplitudes of multiple first subgraphs of position average processing, handle preceding bipolar pulse to obtain
Noise amplitude is also used to multiple bipolar pulse noises of multiple second subgraphs of predeterminated position in the median filtering image
Amplitude averages processing, with bipolar pulse noise amplitude after being handled;
Noise eliminating equipment is connect, for the bipolar arteries and veins after the processing received with the representative processing equipment
When rushing noise amplitude greater than default bipolar pulse noise amplitude, the median filtering image is executed at circulating median filtering
Reason until the bipolar pulse noise amplitude of acquisition treated image is less than default bipolar pulse noise amplitude, and will obtain
The image that takes that treated eliminates image output as noise;
Position identifies equipment, connect with the noise eliminating equipment, eliminates image for receiving the noise, and using not
Image is eliminated to the noise with human body profile and executes silhouette contrast, the highest human body profile of contrast is corresponding
Position type exported as identification types;
Wherein, based on the identification types determine the radiography head following unitary time radiography number include: it is described
The position of identification types is closer apart from human heart position, and the radiography head following unitary time radiography number determined is fewer.
Then, continue that the specific structure of Low emissivity amount digital contrast instrument of the invention is further detailed.
In the Low emissivity amount digital contrast instrument: determining the radiography head following unitary based on the identification types
Time radiography number includes: that the position of the identification types is closer apart from human body brain localization, after the radiography head determined
Continuous unit time radiography number is fewer.
In the Low emissivity amount digital contrast instrument: the noise eliminating equipment is also used in the processing received
When bipolar pulse noise amplitude is less than or equal to default bipolar pulse noise amplitude afterwards, disappear using the median filtering image as noise
Except image, and exports the noise and eliminate image.
In the Low emissivity amount digital contrast instrument: the noise eliminating equipment further includes that amplitude receives sub- equipment, follows
The ring equipment of processing and image export sub- equipment, and the sub- equipment of circular treatment receives sub- equipment and described with the amplitude respectively
Image exports sub- equipment connection.
In the Low emissivity amount digital contrast instrument: the sub- equipment of circular treatment is used in the processing received
When bipolar pulse noise amplitude is greater than default bipolar pulse noise amplitude afterwards, the median filtering image is executed in circulating
Value filtering processing, until the bipolar pulse noise amplitude of acquisition treated image is more than default bipolar pulse noise amplitude.
In the Low emissivity amount digital contrast instrument: in the representative processing equipment, the predeterminated position is place
The central location of image is managed, that is, is directed to the median filtering image or described real-time according to shadow image, the predeterminated position is described
Median filtering image or the real-time central location according to shadow image.
In the Low emissivity amount digital contrast instrument, further includes:
Histogram equalization equipment, region segmentation equipment, mean square deviation extract equipment and data enhancement device are located at the noise
It eliminates between equipment and position identification equipment.
In the Low emissivity amount digital contrast instrument: the histogram equalization equipment and the noise eliminating equipment connect
It connects, eliminates image for receiving the noise, eliminated for the noise and execute following movement in image, the noise is eliminated
Image executes histogram equalization processing, to obtain corresponding balanced image;
The region segmentation equipment is used to detect the area of the maximum target of the balanced image, is based on the maximum target
Area the region segmentation of average formula is carried out to the balanced image, to obtain corresponding multiple images region.
In the Low emissivity amount digital contrast instrument: the mean square deviation extract equipment and the region segmentation equipment connect
It connects, is calculated for carrying out the mean square deviation of each pixel value of each pixel in it to each image-region, with acquisition pair
The region mean square deviation answered, and each image-region for being more than mean deviation threshold for region mean square deviation is defeated as each pending region
Out;
The data enhancement device is connect with the mean square deviation extract equipment, defeated for receiving the mean square deviation extract equipment
Each pending region out executes image enhancement processing to each pending region respectively, is increased with obtaining each data
Strong region, and each data enhancing region entirety replacement noise elimination image is sent to the position identification and is set
It is standby.
In the Low emissivity amount digital contrast instrument: power line communications interface is connect with the histogram equalization equipment,
Image is eliminated for receiving and sending the noise;
Wherein, in the region segmentation equipment, the area based on the maximum target carries out the balanced image flat
The region segmentation of equal formula includes: that the area of the maximum target is bigger, carries out being obtained for region segmentation to the balanced image
Image-region area it is bigger.
In addition, power line carrier communication is to carry out the one of voice or data transmission as information transmitting medium using power line
Kind specific communication mode.Power line is generally divided into high, normal, basic 3 class in power carrier field, usual high-voltage power line refer to 35kV and with
Upper voltage class, medium voltage power line refer to that 10kV voltage class, low-voltage distribution wire refer to 380/220V user's line.Power line carrier
(PLC, i.e. Power Line Carrier) is the distinctive communication mode of electric system, and electric line carrier communication refers to using existing
Analog or digital signal is carried out the technology of high-speed transfer by carrier system by power line.Maximum feature is not need frame again
If network, as long as live wire, data transmitting can be carried out.Power line carrier technology breaches the limit for being only limitted to single chip application
System has come into digital times, and with the needs of the continuous development of power line carrier technology and society, medium/low pressure
Also there is situation in the ascendant in the technological development and application of power line carrier, PLC.This seat of power line carrier communication is by state's unofficial biography
Kingsoft that matchmaker is likened to not be mined is increasingly becoming a popular speciality of field of power communication.
Using Low emissivity amount digital contrast instrument of the invention, different people is directed to for digital contrast instrument in the prior art
The radiography number of the unit time of body component needs the technical issues of artificial setting, passes through image bipolar pulse noise after treatment
When amplitude is greater than default bipolar pulse noise amplitude, circulating median filter process is executed to image, until the processing of acquisition
The bipolar pulse noise amplitude of image afterwards is no more than default bipolar pulse noise amplitude;Importantly, in high precision image
On the basis of processing, the human body of current radiography is identified, to be based on the human body apart from human heart or brain
The distance in portion determines the radiography number of following unitary time, to reduce the damage to human body key position.
It is understood that although the present invention has been disclosed in the preferred embodiments as above, above-described embodiment not to
Limit the present invention.For any person skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications all are made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of variation.Therefore, anything that does not depart from the technical scheme of the invention are right according to the technical essence of the invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments still fall within the range of technical solution of the present invention protection
It is interior.
Claims (10)
1. a kind of Low emissivity amount digital contrast instrument, the angiographic instrument include:
Control equipment, intervention ray occur for digital contrast instrument body frame structure, including radiography head, auto iris control equipment, high pressure
Radiography structure, real-time controlling unit and real-time display unit;
The radiography head is connect with auto iris control equipment, and control equipment and the auto iris control occur for the high pressure
Control equipment connection;
The real-time controlling unit is connect with the intervention ray contrast structure, for Jie to the intervention ray contrast structure
Incident ray contrast mode is controlled;
Number configures equipment, identifies that equipment and radiography head are connect with position respectively, for receiving identification types, and based on described
Identification types determine the radiography head following unitary time radiography number;
Median filtering equipment is connect with the digital contrast instrument body frame structure, for receiving the digital contrast instrument body frame structure
The real-time of output shines shadow image, median filter process is executed to the real-time shadow image that shines, to obtain and export corresponding intermediate value
Filtering image;
Subgraph extract equipment is connect with the median filtering equipment, described real-time according to shadow image and the intermediate value for receiving
Filtering image, and based on default division size to it is described it is real-time execute subgraph dividing processing according to shadow image, to obtain multiple the
One subgraph executes subgraph dividing processing to the median filtering image based on default division size, to obtain multiple second
Subgraph;
Representative processing equipment is connect with the subgraph extract equipment, and being used for will be described real-time according to predeterminated position in shadow image
Multiple bipolar pulse noise amplitudes of multiple first subgraphs average processing, with obtain handle before bipolar pulse noise
Amplitude is also used to multiple bipolar pulse noise amplitudes of multiple second subgraphs of predeterminated position in the median filtering image
Processing is averaged, with bipolar pulse noise amplitude after being handled;
Noise eliminating equipment is connect with the representative processing equipment, for after the processing received bipolar pulse make an uproar
When sound amplitude is greater than default bipolar pulse noise amplitude, circulating median filter process is executed to the median filtering image,
Until the bipolar pulse noise amplitude of acquisition treated image is less than default bipolar pulse noise amplitude, and will acquire
Treated, and image is exported as noise elimination image;
Position identifies equipment, connect with the noise eliminating equipment, eliminates image for receiving the noise, and use different people
Body region profile eliminates image to the noise and executes silhouette contrast, by the corresponding portion of the highest human body profile of contrast
Position type is exported as identification types;
Wherein, determine that the radiography head following unitary time radiography number includes: described identified based on the identification types
The position of type is closer apart from human heart position, and the radiography head following unitary time radiography number determined is fewer.
2. Low emissivity amount digital contrast instrument as described in claim 1, it is characterised in that:
Determine that the radiography head following unitary time radiography number includes: the identification types based on the identification types
Position is closer apart from human body brain localization, and the radiography head following unitary time radiography number determined is fewer.
3. Low emissivity amount digital contrast instrument as claimed in claim 2, it is characterised in that:
The noise eliminating equipment is also used to the bipolar pulse noise amplitude after the processing received and is less than or equal to default pair
When the impulsive noise amplitude of pole, image is eliminated using the median filtering image as noise, and exports the noise and eliminates image.
4. Low emissivity amount digital contrast instrument as claimed in claim 3, it is characterised in that:
The noise eliminating equipment further includes that amplitude receives sub- equipment, the sub- equipment of circular treatment and the sub- equipment of image output, described
The sub- equipment of circular treatment receives sub- equipment with the amplitude respectively and described image exports sub- equipment and connect.
5. Low emissivity amount digital contrast instrument as claimed in claim 4, it is characterised in that:
The sub- equipment of circular treatment be used for after the processing received bipolar pulse noise amplitude be greater than preset bipolar arteries and veins
When rushing noise amplitude, circulating median filter process is executed to the median filtering image, until acquisition treated figure
The bipolar pulse noise amplitude of picture is more than default bipolar pulse noise amplitude.
6. Low emissivity amount digital contrast instrument as claimed in claim 5, it is characterised in that:
In the representative processing equipment, the predeterminated position is the central location for handling image, i.e., filters for the intermediate value
Wave image is described real-time according to shadow image, and the predeterminated position is the median filtering image or described real-time according in shadow image
Entreat position.
7. Low emissivity amount digital contrast instrument as claimed in claim 6, which is characterized in that the angiographic instrument further include:
Histogram equalization equipment, region segmentation equipment, mean square deviation extract equipment and data enhancement device are located at the noise and eliminate
Between equipment and position identification equipment.
8. Low emissivity amount digital contrast instrument as claimed in claim 7, it is characterised in that:
The histogram equalization equipment is connect with the noise eliminating equipment, image is eliminated for receiving the noise, for institute
It states noise and eliminates the following movement of execution in image, histogram equalization is executed to noise elimination image and is handled, it is corresponding to obtain
Balanced image;
The region segmentation equipment is used to detect the area of the maximum target of the balanced image, the face based on the maximum target
Product carries out the region segmentation of average formula to the balanced image, to obtain corresponding multiple images region.
9. Low emissivity amount digital contrast instrument as claimed in claim 8, it is characterised in that:
The mean square deviation extract equipment is connect with the region segmentation equipment, each in it for carrying out to each image-region
The mean square deviation of each pixel value of a pixel calculates, and to obtain corresponding region mean square deviation, and is more than equal by region mean square deviation
Each image-region of variance threshold values is exported as each pending region;
The data enhancement device is connect with the mean square deviation extract equipment, for receiving the mean square deviation extract equipment output
Each pending region executes image enhancement processing to each pending region, to obtain each data enhancement region respectively
Domain, and each data enhancing region entirety is replaced into the noise elimination image and is sent to the position identification equipment.
10. Low emissivity amount digital contrast instrument as claimed in claim 9, it is characterised in that:
Power line communications interface is connect with the histogram equalization equipment, eliminates image for receiving and sending the noise;
Wherein, in the region segmentation equipment, the area based on the maximum target carries out average formula to the balanced image
Region segmentation include: the maximum target area it is bigger, the figure obtained of region segmentation is carried out to the balanced image
As the area in region is bigger.
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