CN109283785B - Safety portable imager - Google Patents
Safety portable imager Download PDFInfo
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- CN109283785B CN109283785B CN201811479307.9A CN201811479307A CN109283785B CN 109283785 B CN109283785 B CN 109283785B CN 201811479307 A CN201811479307 A CN 201811479307A CN 109283785 B CN109283785 B CN 109283785B
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- 230000005855 radiation Effects 0.000 claims abstract description 20
- 238000004846 x-ray emission Methods 0.000 claims abstract description 17
- 230000007547 defect Effects 0.000 claims abstract description 8
- 238000012795 verification Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims description 61
- 230000002159 abnormal effect Effects 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 24
- 230000005856 abnormality Effects 0.000 claims description 15
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000011218 segmentation Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000012163 sequencing technique Methods 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
- G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/70—Denoising; Smoothing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
-
- 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
- G06T2207/10116—X-ray image
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Image Processing (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention relates to a safe portable imager, comprising: the main structure of the portable imager comprises an X-ray emission source, a power supply, a U-shaped shell, a switch button, a current adjusting knob, a voltage adjusting knob and a handle, wherein the power supply is used for supplying power to the X-ray emission source; and the numerical verification device is connected with the frequency sorting device and is used for sending a radiation bearing command when the representative gray value is within a preset gray value range, and otherwise, sending a radiation defect command. The invention effectively improves the safety of the portable imager.
Description
Technical Field
The invention relates to the field of portable imagers, in particular to a safe portable imager.
Background
The portable imager has compact structure and is light and portable; high-quality images and accurate non-contact temperature measurement; the product is firm and durable, and meets the ergonomic design; the portable imager can automatically capture the highest temperature point/the lowest temperature point, can define the capture range by user, has an intelligent power management system and humanized professional infrared image processing software, and can quickly obtain patient scanning imaging data with certain accuracy.
Disclosure of Invention
In order to solve the technical problem that the safety of a portable imager in the prior art cannot be effectively guaranteed, the invention provides a safe portable imager, which firstly utilizes the characteristic that the larger the gray value is and the larger the radiation quantity is in an X-ray imaging graph to carry out numerical judgment on the radiation quantity on site so as to avoid the accident that the radiation quantity does not meet the requirement on site; secondly, in the specific image processing, whether the processed image is processed again in the same way or not is determined based on the parameter comparison of the image before and after the mean value denoising processing, so that the image processing efficiency and precision are improved.
According to an aspect of the present invention, there is provided a secure hand-held imager, comprising:
the main structure of the portable imager comprises an X-ray emission source, a power supply, a U-shaped shell, a switch button, a current adjusting knob, a voltage adjusting knob and a handle, wherein the power supply is used for supplying power to the X-ray emission source; the numerical verification equipment is connected with the frequency sorting equipment and used for sending a radiation bearing command when the representative gray value is within a preset gray value range, and otherwise, sending a radiation defect command; the emergency control switch is respectively connected with the numerical verification device and the X-ray emission source, and is used for maintaining the current emission action of the X-ray emission source when receiving the radiation bearing command and also used for emergently stopping the current emission action of the X-ray emission source when receiving the radiation defect command; the mean de-noising device is connected with the main structure of the portable imager and is used for receiving the X-ray image and executing mean de-noising processing on the X-ray image so as to obtain and output a corresponding mean de-noised image; the double-image processing device is connected with the mean de-noising device and used for receiving the mean de-noised image, identifying the number of targets in the mean de-noised image, and performing uniform region segmentation on the mean de-noised image based on the number of the targets to obtain each first image region, wherein the more the number of the targets is, the less the number of pixel points occupied by each obtained first image region is; the double-image processing equipment is also used for receiving the X-ray image and performing uniform region segmentation on the X-ray image, wherein the uniform region segmentation has the same size as the mean de-noising image, so as to obtain each second image region; the intensity identification device is connected with the dual-image processing device, obtains the Gaussian noise intensity of each first image area, obtains the Gaussian noise intensity of each second image area, determines the overall Gaussian noise intensity of the mean de-noised image based on the Gaussian noise intensities of the first image areas, and determines the overall Gaussian noise intensity of the X-ray image based on the Gaussian noise intensities of the second image areas; the subsequent processing equipment is respectively connected with the mean denoising equipment and the intensity identification equipment and is used for performing mean denoising processing on the mean denoising image again when the absolute value of the difference between the overall Gaussian noise intensity of the mean denoising image and the overall Gaussian noise intensity of the X-ray image is less than or equal to a limited amount so as to obtain a subsequent processing image; and the frequency sorting equipment is connected with the subsequent processing equipment and used for receiving the subsequent processing image, acquiring each gray value of each pixel point in the subsequent processing image and outputting the gray value with the highest occurrence frequency in each gray value as a representative gray value.
More specifically, in the secure hand-held imager: and the subsequent processing equipment is also used for outputting the mean de-noised image as a subsequent processed image when the difference between the overall Gaussian noise intensity of the mean de-noised image and the overall Gaussian noise intensity of the X-ray image is greater than a limit amount.
More specifically, in the secure type handy-type imager, further comprising:
the device comprises a clear processing device, a noise measuring device, an abnormality detecting device, a region analyzing device and a state collecting device which are arranged between the subsequent processing device and the frequency sequencing device.
More specifically, in the secure hand-held imager: and the clear processing equipment is connected with the subsequent processing equipment and is used for executing contrast enhancement processing on the subsequent processed image so as to obtain and output a corresponding clear content image.
More specifically, in the secure hand-held imager: the noise measuring device is connected with the clear processing device and used for performing noise type analysis on the content clear image to obtain a noise type with the maximum amplitude as main noise, and when the maximum amplitude of the main noise in the content clear image exceeds a limited amount, performing image enhancement processing on the content clear image to obtain a corresponding content enhanced image.
More specifically, in the secure hand-held imager: the abnormal detection equipment is connected with the noise measurement equipment and is used for receiving the content enhanced image, judging whether the brightness value of each pixel point in the content enhanced image is an abnormal value or not, and determining the corresponding pixel point as an abnormal pixel point when the brightness value is the abnormal value so as to obtain each abnormal pixel point in the content enhanced image; wherein, the judging whether the brightness value of each pixel point in the content enhanced image is an abnormal value comprises: calculating the average value of the brightness values of all the pixel points in the content enhanced image, and determining the pixel points as abnormal pixel points when the brightness values of the pixel points deviate from the average value and exceed a preset absolute value threshold.
More specifically, in the secure hand-held imager: the region analysis device is respectively connected with the frequency sorting device and the abnormality detection device, and is configured to acquire a region where each abnormal pixel in the content enhanced image is most concentrated, use the most concentrated region as a representative region, and send the representative region to the frequency sorting device in place of the subsequent processed image.
More specifically, in the secure hand-held imager: the state acquisition equipment is connected with the abnormity detection equipment and is used for detecting the real-time state of the abnormity detection equipment, and the real-time state of the abnormity detection equipment is a dormant state or a working state.
More specifically, in the secure hand-held imager: the noise measurement device comprises a type analysis unit, an amplitude extraction unit and an image enhancement unit; wherein, in the noise measuring apparatus, the amplitude extracting unit is connected to the type analyzing unit and the image enhancing unit, respectively.
More specifically, in the secure type handy-type imager, further comprising:
the SDRAM storage device is respectively connected with the state acquisition device and the abnormality detection device and is used for storing the preset absolute value threshold, and the preset absolute value threshold is a positive value; and the SDRAM storage equipment sends the preset absolute value threshold to the abnormality detection equipment when the real-time state of the abnormality detection equipment is a working state.
Detailed Description
The embodiments of the secure hand-held imager of the present invention will be described in detail below.
The handheld imager has small overall dimension and convenient use, can finish the measurement of a target area like operating a mobile phone to take a picture, and can obtain color image information and a plurality of information of a patient at one time. The handheld imager is a unique instant imaging fast imager, is different from a traditional push-and-scan imager, adopts a single image fast capturing method, removes a scanning process, and reduces complex operations of traditional data acquisition. Therefore, the handheld high-speed imager can avoid motion artifacts, thereby simplifying image operation, reducing image processing time and improving high data signal-to-noise ratio.
In order to overcome the defects, the invention builds a safe portable imager, and can effectively solve the corresponding technical problem.
A secure hand-held imager is shown according to an embodiment of the invention comprising:
the main structure of the portable imager comprises an X-ray emission source, a power supply, a U-shaped shell, a switch button, a current adjusting knob, a voltage adjusting knob and a handle, wherein the power supply is used for supplying power to the X-ray emission source;
the numerical verification equipment is connected with the frequency sorting equipment and used for sending a radiation bearing command when the representative gray value is within a preset gray value range, and otherwise, sending a radiation defect command;
the emergency control switch is respectively connected with the numerical verification device and the X-ray emission source, and is used for maintaining the current emission action of the X-ray emission source when receiving the radiation bearing command and also used for emergently stopping the current emission action of the X-ray emission source when receiving the radiation defect command;
the mean de-noising device is connected with the main structure of the portable imager and is used for receiving the X-ray image and executing mean de-noising processing on the X-ray image so as to obtain and output a corresponding mean de-noised image;
the double-image processing device is connected with the mean de-noising device and used for receiving the mean de-noised image, identifying the number of targets in the mean de-noised image, and performing uniform region segmentation on the mean de-noised image based on the number of the targets to obtain each first image region, wherein the more the number of the targets is, the less the number of pixel points occupied by each obtained first image region is;
the double-image processing equipment is also used for receiving the X-ray image and performing uniform region segmentation on the X-ray image, wherein the uniform region segmentation has the same size as the mean de-noising image, so as to obtain each second image region;
the intensity identification device is connected with the dual-image processing device, obtains the Gaussian noise intensity of each first image area, obtains the Gaussian noise intensity of each second image area, determines the overall Gaussian noise intensity of the mean de-noised image based on the Gaussian noise intensities of the first image areas, and determines the overall Gaussian noise intensity of the X-ray image based on the Gaussian noise intensities of the second image areas;
the subsequent processing equipment is respectively connected with the mean denoising equipment and the intensity identification equipment and is used for performing mean denoising processing on the mean denoising image again when the absolute value of the difference between the overall Gaussian noise intensity of the mean denoising image and the overall Gaussian noise intensity of the X-ray image is less than or equal to a limited amount so as to obtain a subsequent processing image;
and the frequency sorting equipment is connected with the subsequent processing equipment and used for receiving the subsequent processing image, acquiring each gray value of each pixel point in the subsequent processing image and outputting the gray value with the highest occurrence frequency in each gray value as a representative gray value.
Next, the detailed structure of the secure hand-held imager of the present invention will be further described.
In the secure hand-held imager: and the subsequent processing equipment is also used for outputting the mean de-noised image as a subsequent processed image when the difference between the overall Gaussian noise intensity of the mean de-noised image and the overall Gaussian noise intensity of the X-ray image is greater than a limit amount.
In the secure hand-held imager, further comprising:
the device comprises a clear processing device, a noise measuring device, an abnormality detecting device, a region analyzing device and a state collecting device which are arranged between the subsequent processing device and the frequency sequencing device.
In the secure hand-held imager: and the clear processing equipment is connected with the subsequent processing equipment and is used for executing contrast enhancement processing on the subsequent processed image so as to obtain and output a corresponding clear content image.
In the secure hand-held imager: the noise measuring device is connected with the clear processing device and used for performing noise type analysis on the content clear image to obtain a noise type with the maximum amplitude as main noise, and when the maximum amplitude of the main noise in the content clear image exceeds a limited amount, performing image enhancement processing on the content clear image to obtain a corresponding content enhanced image.
In the secure hand-held imager: the abnormal detection equipment is connected with the noise measurement equipment and is used for receiving the content enhanced image, judging whether the brightness value of each pixel point in the content enhanced image is an abnormal value or not, and determining the corresponding pixel point as an abnormal pixel point when the brightness value is the abnormal value so as to obtain each abnormal pixel point in the content enhanced image; wherein, the judging whether the brightness value of each pixel point in the content enhanced image is an abnormal value comprises: calculating the average value of the brightness values of all the pixel points in the content enhanced image, and determining the pixel points as abnormal pixel points when the brightness values of the pixel points deviate from the average value and exceed a preset absolute value threshold.
In the secure hand-held imager: the region analysis device is respectively connected with the frequency sorting device and the abnormality detection device, and is configured to acquire a region where each abnormal pixel in the content enhanced image is most concentrated, use the most concentrated region as a representative region, and send the representative region to the frequency sorting device in place of the subsequent processed image.
In the secure hand-held imager: the state acquisition equipment is connected with the abnormity detection equipment and is used for detecting the real-time state of the abnormity detection equipment, and the real-time state of the abnormity detection equipment is a dormant state or a working state.
In the secure hand-held imager: the noise measurement device comprises a type analysis unit, an amplitude extraction unit and an image enhancement unit; wherein, in the noise measuring apparatus, the amplitude extracting unit is connected to the type analyzing unit and the image enhancing unit, respectively.
In the secure hand-held imager, further comprising:
the SDRAM storage device is respectively connected with the state acquisition device and the abnormality detection device and is used for storing the preset absolute value threshold, and the preset absolute value threshold is a positive value;
and the SDRAM storage equipment sends the preset absolute value threshold to the abnormality detection equipment when the real-time state of the abnormality detection equipment is a working state.
In addition, the SDRAM: synchronous Dynamic random access Memory, wherein synchronization refers to that a Synchronous clock is required for Memory work, and internal command sending and data transmission are based on the Synchronous clock; dynamic means that the memory array needs to be refreshed continuously to ensure that data is not lost; random means that data are not stored linearly and sequentially, but data are read and written by freely appointing addresses. The clock frequency of the SDR SDRAM is the frequency of data storage. The operating voltage of the SDRAM is 3.3V.
The safe portable imager provided by the invention is used for solving the technical problem that the safety of the portable imager in the prior art cannot be effectively guaranteed, and firstly, numerical judgment is carried out on the field radiation quantity by utilizing the characteristic that the larger the gray value is in an X-ray imaging picture, the larger the radiation quantity is, so as to avoid the accident that the radiation quantity does not meet the field requirement; secondly, in the specific image processing, whether the processed image is processed again in the same way or not is determined based on the parameter comparison of the image before and after the mean value denoising processing, so that the image processing efficiency and precision are improved.
It is to be understood that while the present invention has been described in conjunction with the preferred embodiments thereof, it is not intended to limit the invention to those embodiments. It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (9)
1. A secure hand-held imager, comprising:
the main structure of the portable imager comprises an X-ray emission source, a power supply, a U-shaped shell, a switch button, a current adjusting knob, a voltage adjusting knob and a handle, wherein the power supply is used for supplying power to the X-ray emission source;
the numerical verification equipment is connected with the frequency sorting equipment and used for sending a radiation bearing command when the representative gray value is within a preset gray value range, and otherwise, sending a radiation defect command;
the emergency control switch is respectively connected with the numerical verification device and the X-ray emission source, and is used for maintaining the current emission action of the X-ray emission source when receiving the radiation bearing command and also used for emergently stopping the current emission action of the X-ray emission source when receiving the radiation defect command;
the mean de-noising device is connected with the main structure of the portable imager and is used for receiving the X-ray image and executing mean de-noising processing on the X-ray image so as to obtain and output a corresponding mean de-noised image;
the double-image processing device is connected with the mean de-noising device and used for receiving the mean de-noised image, identifying the number of targets in the mean de-noised image, and performing uniform region segmentation on the mean de-noised image based on the number of the targets to obtain each first image region, wherein the more the number of the targets is, the less the number of pixel points occupied by each obtained first image region is;
the double-image processing equipment is also used for receiving the X-ray image and performing uniform region segmentation on the X-ray image, wherein the uniform region segmentation has the same size as the mean de-noising image, so as to obtain each second image region;
the intensity identification device is connected with the dual-image processing device, obtains the Gaussian noise intensity of each first image area, obtains the Gaussian noise intensity of each second image area, determines the overall Gaussian noise intensity of the mean de-noised image based on the Gaussian noise intensities of the first image areas, and determines the overall Gaussian noise intensity of the X-ray image based on the Gaussian noise intensities of the second image areas;
the subsequent processing equipment is respectively connected with the mean denoising equipment and the intensity identification equipment and is used for performing mean denoising processing on the mean denoising image again when the absolute value of the difference between the overall Gaussian noise intensity of the mean denoising image and the overall Gaussian noise intensity of the X-ray image is less than or equal to a limited amount so as to obtain a subsequent processing image;
the subsequent processing equipment is also used for outputting the mean de-noised image as a subsequent processed image when the difference between the overall Gaussian noise intensity of the mean de-noised image and the overall Gaussian noise intensity of the X-ray image is greater than a limit amount;
and the frequency sorting equipment is connected with the subsequent processing equipment and used for receiving the subsequent processing image, acquiring each gray value of each pixel point in the subsequent processing image and outputting the gray value with the highest occurrence frequency in each gray value as a representative gray value.
2. The secure hand-held imager of claim 1, further comprising:
the device comprises a clear processing device, a noise measuring device, an abnormality detecting device, a region analyzing device and a state collecting device which are arranged between the subsequent processing device and the frequency sequencing device.
3. The secure hand-held imager of claim 2, wherein:
and the clear processing equipment is connected with the subsequent processing equipment and is used for executing contrast enhancement processing on the subsequent processed image so as to obtain and output a corresponding clear content image.
4. The secure hand-held imager of claim 3, wherein:
the noise measuring device is connected with the clear processing device and used for performing noise type analysis on the content clear image to obtain a noise type with the maximum amplitude as main noise, and when the maximum amplitude of the main noise in the content clear image exceeds a limited amount, performing image enhancement processing on the content clear image to obtain a corresponding content enhanced image.
5. The secure hand-held imager of claim 4, wherein:
the abnormal detection equipment is connected with the noise measurement equipment and is used for receiving the content enhanced image, judging whether the brightness value of each pixel point in the content enhanced image is an abnormal value or not, and determining the corresponding pixel point as an abnormal pixel point when the brightness value is the abnormal value so as to obtain each abnormal pixel point in the content enhanced image; wherein, the judging whether the brightness value of each pixel point in the content enhanced image is an abnormal value comprises: calculating the average value of the brightness values of all the pixel points in the content enhanced image, and determining the pixel points as abnormal pixel points when the brightness values of the pixel points deviate from the average value and exceed a preset absolute value threshold.
6. The secure hand-held imager of claim 5, wherein:
the region analysis device is respectively connected with the frequency sorting device and the abnormality detection device, and is configured to acquire a region where each abnormal pixel in the content enhanced image is most concentrated, use the most concentrated region as a representative region, and send the representative region to the frequency sorting device in place of the subsequent processed image.
7. The secure hand-held imager of claim 6, wherein:
the state acquisition equipment is connected with the abnormity detection equipment and is used for detecting the real-time state of the abnormity detection equipment, and the real-time state of the abnormity detection equipment is a dormant state or a working state.
8. The secure hand-held imager of claim 7, wherein:
the noise measurement device comprises a type analysis unit, an amplitude extraction unit and an image enhancement unit;
wherein, in the noise measuring apparatus, the amplitude extracting unit is connected to the type analyzing unit and the image enhancing unit, respectively.
9. The secure hand-held imager of claim 8, wherein the hand-held imager further comprises:
the SDRAM storage device is respectively connected with the state acquisition device and the abnormality detection device and is used for storing the preset absolute value threshold, and the preset absolute value threshold is a positive value;
and the SDRAM storage equipment sends the preset absolute value threshold to the abnormality detection equipment when the real-time state of the abnormality detection equipment is a working state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811479307.9A CN109283785B (en) | 2018-12-05 | 2018-12-05 | Safety portable imager |
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| CN201811479307.9A CN109283785B (en) | 2018-12-05 | 2018-12-05 | Safety portable imager |
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| CN109283785B true CN109283785B (en) | 2022-04-08 |
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