CN104819991A - Radiation imaging method, system and device capable of changing resolution ratio - Google Patents
Radiation imaging method, system and device capable of changing resolution ratio Download PDFInfo
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Abstract
The invention provides a radiation imaging method, system and device capable of changing a resolution ratio. The radiation imaging method comprises the steps: acquiring a radiation sampling value of each pixel point and radiation image information corresponding to all radiation sampling information; classifying all pixel points according to the radiation image information, and merging the radiation sampling values of the pixel points in a same pixel unit; displaying a radiation image of a to-be-detected object according to a merging result, thereby completing the radiation imaging process. By adopting the technical scheme, the resolution ratio can be adjusted according to the imaging characteristics of the detected object, so that the radiation imaging effect can be improved, and the technical problem of the contradiction between the dynamic range (or the penetrating capability) and the resolution ratio of the radiation imaging system can be solved.
Description
Technical field
The present invention relates to technical field of imaging, in particular to radiation image-forming system and a kind of radiation imaging apparatus of a kind of radiation imaging method of variable-resolution, a kind of variable-resolution.
Background technology
In correlation technique, along with the development of radiography and the raising of image processing techniques, increasing radiography is devoted to improve constantly resolution, also namely in identical imaging region, obtain more pixel information, and have ignored the contradictory problems in radiography between dynamic imaging scope and resolution.
Particularly, in radiation imaging procedure, usual employing reduces pixel dimension or improves sweep frequency, the minimizing of the photon number that its essence all can cause radiation detector to receive, the dynamic range of radiation image-forming system is caused to reduce thus, and the resolution of radiant image determines primarily of hardware pixel, is unmodifiable, this reduces the dirigibility of radiant image.
Therefore, the radiant image scheme how designing a kind of variable-resolution becomes technical matters urgently to be resolved hurrily with the contradiction solved between dynamic imaging scope and resolution.
Summary of the invention
The present invention just based on above-mentioned technical matters one of at least, proposes a kind of radiant image scheme solving the variable-resolution of contradiction between dynamic imaging scope and resolution.
In view of this, the present invention proposes a kind of radiation imaging method of variable-resolution, comprising: obtain the X-radiation of each pixel and radiation image information corresponding to whole described radiation samples information; According to described radiation image information, whole described pixel is divided, and merge the X-radiation being divided in the described pixel of same pixel cell; According to the radiation image of amalgamation result display object under test, to complete radiation imaging procedure.
In this technical scheme, by radiation image information, whole pixel is divided, and merge the X-radiation being divided in all pixels of same pixel cell, achieve the adjustable effect of resolution, enhance the dirigibility of radiant image effect, improve the experience of user.
Particularly, after radiation imaging apparatus measuring targets carries out first detection imaging, directly do not export image, but obtain all pixels and all generate corresponding X-radiation, also namely the X-radiation of each pixel parameters such as () such as gray-scale value, brightness value and contrasts might not be shown as single picture signal.According to the average determination resolution of the X-radiation of appointed area, wherein, appointed area can divide size by predetermined image or specification is determined, or the difference according to X-radiation is determined, the image such as difference of the gray-scale value between adjacent pixel being less than or equal to designated value is divided into the modes such as an appointed area.
In addition, due to the diversity of detection array, the dividing mode of pixel cell has a variety of embodiment, such as detection array comprises M × 2 pixel, wherein, M is more than or equal to 2, the size being then divided into pixel cell comprises: 1 × 1 and 2 × 2 two kinds, and the pixel cell of each appointed area is in the same size, and for example detection array comprises M × 3 pixel, wherein, M aliquot 3, the size being then divided into pixel cell comprises: 1 × 1, 2 × 2 and 3 × 3 three kinds, and the pixel cell of each appointed area is in the same size, when obtaining output radiation imaging instruction, the X-radiation of all pixels in pixel cell is carried out merging and shows as a picture signal.
In technique scheme, preferably, according to described radiation image information, whole described pixel is divided, and merge the X-radiation being divided in the described pixel of same pixel cell, comprise following concrete steps: be divided into multiple image-region according to the image of described object under test; When described radiation image information is gray-scale value, calculate the gray average of the described image-region that user selectes; According to described gray average, described pixel is divided and merging treatment.
In this technical scheme, by carrying out the partitioning standards of pixel cell according to gray-scale value, improve reliability and the efficiency of radiation imaging procedure, particularly, radiant image generates gray level image usually, wherein, the average gray value of the radiant image of the interior zone of unloaded object is higher, in order to improve the precision of inspection, need to improve resolution, so the size of pixel cell is reduced, and for unloaded object body, its average gray value is lower, in order to improve the transmissivity of detection, need to reduce resolution, so the size of pixel cell is increased to increase to image signal, in addition, after completing pixel cell division, resolution corresponding for above-mentioned pixel cell is prompted to user by radiation imaging apparatus, and be provided as picture preview effect, the resolution of the radiant image of object under test is determined according to the instruction of user, and the division of pixel cell is completed according to the resolution that user determines.
In technique scheme, preferably, according to described gray average, described pixel is divided and merging treatment, comprise following concrete steps: judge whether described gray average is less than or equal to predetermined gray-scale value; When judging that described gray average is less than or equal to predetermined gray-scale value, each described pixel cell after division comprises N1 × N1 pixel, and merges the X-radiation of described N1 × N1 pixel, to generate the output signal of described pixel cell, wherein, N1 is positive integer.
In this technical scheme, by judging that gray average determines the division of pixel cell, further increasing reliability and the efficiency of radiation imaging procedure, for the images of interior regions of unloaded object and the images of interior regions of heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of counterweight object carrier divides, the length of side N1 of pixel cell is greater than the length of side of the pixel cell of unloaded object, now, the resolution of radiant image is low, but radiation signal value obtains to merge and improves, be equivalent to the transmission effects that improve radiant image, improve detectability.
In technique scheme, preferably, according to described gray average, described pixel is divided and merging treatment, comprise following concrete steps: when judging that described gray average is greater than predetermined gray-scale value, each described pixel cell after division comprises N2 × N2 pixel, and merges the X-radiation of described N2 × N2 pixel, to generate the output signal of described pixel cell, wherein, N2 is positive integer, and N1 is greater than N2.
In this technical scheme, equally for the images of interior regions of the images of interior regions of unloaded object and heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of unloaded object being divided, the length of side N2 of pixel cell is less than the length of side N1 of the pixel cell of heavily loaded object, now, the resolution of radiant image is high, but radiation signal value reduces, be equivalent to carry and high-resolutionly reduce transmissivity simultaneously, more meet the detection demand of user to unloaded object.
In technique scheme, preferably, according to the radiation image of amalgamation result display object under test, also comprise: resolution corresponding for described pixel cell is prompted to user; When obtaining user and confirming to adopt described resolution, described image-region is shown using described pixel cell as new pixel.
In this technical scheme, by resolution corresponding for pixel cell is prompted to user, improve the intelligent of radiation image-forming system, although the scheme that the pixel cell that radiation imaging apparatus possesses optimization divides, to realize the automatic generation of resolution, but due to the difference of user's visual capacity, be applicable to different resolution carry out detecting and observing, therefore, by pointing out optimum resolution (one or more) to user, improve the visual experience of user, in addition, user can select to carry out certain specified resolution observation to appointed area, now, radiation imaging apparatus generates the resolution to above-mentioned appointed area, and adopt the optimal resolution of acquiescence to show to other regions, thus further increasing efficiency and the visual experience of imaging.
According to a further aspect in the invention, also proposed a kind of radiation image-forming system of variable-resolution, comprising: acquiring unit, the radiation image information that X-radiation and whole described radiation samples information for obtaining each pixel are corresponding; Dividing merge cells, for dividing whole described pixel according to described radiation image information, and merging the X-radiation being divided in the described pixel of same pixel cell; Display unit, for the radiation image according to amalgamation result display object under test, to complete radiation imaging procedure.
In this technical scheme, by radiation image information, whole pixel is divided, and merge the X-radiation being divided in all pixels of same pixel cell, achieve the adjustable effect of resolution, enhance the dirigibility of radiant image effect, improve the experience of user.
Particularly, after radiation imaging apparatus measuring targets carries out first detection imaging, directly do not export image, but obtain all pixels and all generate corresponding X-radiation, also namely the X-radiation of each pixel parameters such as () such as gray-scale value, brightness value and contrasts might not be shown as single picture signal.According to the average determination resolution of the X-radiation of appointed area, wherein, appointed area can divide size by predetermined image or specification is determined, or the difference according to X-radiation is determined, the image such as difference of the gray-scale value between adjacent pixel being less than or equal to designated value is divided into the modes such as an appointed area.
In addition, due to the diversity of detection array, the dividing mode of pixel cell has a variety of embodiment, such as detection array comprises M × 2 pixel, wherein, M is more than or equal to 2, the size being then divided into pixel cell comprises: 1 × 1 and 2 × 2 two kinds, and the pixel cell of each appointed area is in the same size, and for example detection array comprises M × 3 pixel, wherein, M aliquot 3, the size being then divided into pixel cell comprises: 1 × 1, 2 × 2 and 3 × 3 three kinds, and the pixel cell of each appointed area is in the same size, when obtaining output radiation imaging instruction, the X-radiation of all pixels in pixel cell is carried out merging and shows as a picture signal.
In technique scheme, preferably, described division merge cells, also for being divided into multiple image-region according to the image of described object under test;
The radiation image-forming system of described variable-resolution, also comprises: computing unit, for when described radiation image information is gray-scale value, calculates the gray average of the described image-region that user selectes; Described merging division unit also for, according to described gray average, described pixel is divided and merging treatment.
In this technical scheme, by carrying out the partitioning standards of pixel cell according to gray-scale value, improve reliability and the efficiency of radiation imaging procedure, particularly, radiant image generates gray level image usually, wherein, the average gray value of the radiant image of the interior zone of unloaded object is higher, in order to improve the precision of inspection, need to improve resolution, so the size of pixel cell is reduced, and for unloaded object body, its average gray value is lower, in order to improve the transmissivity of detection, need to reduce resolution, so the size of pixel cell is increased to increase to image signal, in addition, after completing pixel cell division, resolution corresponding for above-mentioned pixel cell is prompted to user by radiation imaging apparatus, and be provided as picture preview effect, the resolution of the radiant image of object under test is determined according to the instruction of user, and the division of pixel cell is completed according to the resolution that user determines.
In technique scheme, preferably, also comprise: judging unit, for judging whether described gray average is less than or equal to predetermined gray-scale value; Described merging division unit also for, when judging that described gray average is less than or equal to predetermined gray-scale value, each described pixel cell after division comprises N1 × N1 pixel, and merge the X-radiation of described N1 × N1 pixel, to generate the output signal of described pixel cell, wherein, N1 is positive integer.
In this technical scheme, by judging that gray average determines the division of pixel cell, further increasing reliability and the efficiency of radiation imaging procedure, for the images of interior regions of unloaded object and the images of interior regions of heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of counterweight object carrier divides, the length of side N1 of pixel cell is greater than the length of side of the pixel cell of unloaded object, now, the resolution of radiant image is low, but radiation signal value obtains to merge and improves, be equivalent to the transmission effects that improve radiant image, improve detectability.
In technique scheme, preferably, described merging division unit also for, when judging that described gray average is greater than predetermined gray-scale value, each described pixel cell after division comprises N2 × N2 pixel, and merges the X-radiation of described N2 × N2 pixel, to generate the output signal of described pixel cell, wherein, N2 is positive integer, and N1 is greater than N2.
In this technical scheme, equally for the images of interior regions of the images of interior regions of unloaded object and heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of unloaded object being divided, the length of side N2 of pixel cell is less than the length of side N1 of the pixel cell of heavily loaded object, now, the resolution of radiant image is high, but radiation signal value reduces, be equivalent to carry and high-resolutionly reduce transmissivity simultaneously, more meet the detection demand of user to unloaded object.
In technique scheme, preferably, also comprise: Tip element, for resolution corresponding for described pixel cell is prompted to user; Described display unit also for, obtain user confirm to adopt described resolution time, described image-region is shown using described pixel cell as new pixel.
In this technical scheme, by resolution corresponding for pixel cell is prompted to user, improve the intelligent of radiation image-forming system, although the scheme that the pixel cell that radiation imaging apparatus possesses optimization divides, to realize the automatic generation of resolution, but due to the difference of user's visual capacity, be applicable to different resolution carry out detecting and observing, therefore, by pointing out optimum resolution (one or more) to user, improve the visual experience of user, in addition, user can select to carry out certain specified resolution observation to appointed area, now, radiation imaging apparatus generates the resolution to above-mentioned appointed area, and adopt the optimal resolution of acquiescence to show to other regions, thus further increasing efficiency and the visual experience of imaging.
According to a third aspect of the invention we, also proposed a kind of radiation imaging apparatus, comprise the radiation image-forming system of the variable-resolution as described in above-mentioned any one technical scheme.
By above technical scheme, the adjustment of resolution can be carried out according to the imaging characteristics of testee, to improve radiant image effect, solve the technical matters of the contradiction between dynamic imaging scope and resolution.
Accompanying drawing explanation
Fig. 1 shows the schematic flow diagram of the radiation imaging method of variable-resolution according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of the radiation image-forming system of variable-resolution according to an embodiment of the invention;
Fig. 3 shows the schematic block diagram of radiation imaging apparatus according to an embodiment of the invention;
Fig. 4 shows the schematic diagram of the radiation image-forming system of variable-resolution according to an embodiment of the invention;
Fig. 5 shows the schematic diagram of the radiation imaging procedure of variable-resolution according to an embodiment of the invention;
Fig. 6 shows the schematic diagram of the radiation imaging procedure of variable-resolution according to another embodiment of the invention;
Fig. 7 shows the schematic diagram of the radiation imaging procedure of variable-resolution according to still a further embodiment.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic flow diagram of the radiation imaging method of variable-resolution according to an embodiment of the invention.
As shown in Figure 1, the radiation imaging method of variable-resolution, comprising: step 102 according to an embodiment of the invention, obtains the X-radiation of each pixel and radiation image information corresponding to whole described radiation samples information; Step 104, divides whole described pixel according to described radiation image information, and merges the X-radiation being divided in the described pixel of same pixel cell; Step 106, according to the radiation image of amalgamation result display object under test, to complete radiation imaging procedure.
In this technical scheme, by radiation image information, whole pixel is divided, and merge the X-radiation being divided in all pixels of same pixel cell, achieve the adjustable effect of resolution, enhance the dirigibility of radiant image effect, improve the experience of user.
Particularly, after radiation imaging apparatus measuring targets carries out first detection imaging, directly do not export image, but obtain all pixels and all generate corresponding X-radiation, also namely the X-radiation of each pixel parameters such as () such as gray-scale value, brightness value and contrasts might not be shown as single picture signal.According to the average determination resolution of the X-radiation of appointed area, wherein, appointed area can divide size by predetermined image or specification is determined, or the difference according to X-radiation is determined, the image such as difference of the gray-scale value between adjacent pixel being less than or equal to designated value is divided into the modes such as an appointed area.
In addition, due to the diversity of detection array, the dividing mode of pixel cell has a variety of embodiment, such as detection array comprises M × 2 pixel, wherein, M is more than or equal to 2, the size being then divided into pixel cell comprises: 1 × 1 and 2 × 2 two kinds, and the pixel cell of each appointed area is in the same size, and for example detection array comprises M × 3 pixel, wherein, M aliquot 3, the size being then divided into pixel cell comprises: 1 × 1, 2 × 2 and 3 × 3 three kinds, and the pixel cell of each appointed area is in the same size, when obtaining output radiation imaging instruction, the X-radiation of all pixels in pixel cell is carried out merging and shows as a picture signal.
In technique scheme, preferably, according to described radiation image information, whole described pixel is divided, and merge the X-radiation being divided in the described pixel of same pixel cell, comprise following concrete steps: be divided into multiple image-region according to the image of described object under test; When described radiation image information is gray-scale value, calculate the gray average of the described image-region that user selectes; According to described gray average, described pixel is divided and merging treatment.
In this technical scheme, by carrying out the partitioning standards of pixel cell according to gray-scale value, improve reliability and the efficiency of radiation imaging procedure, particularly, radiant image generates gray level image usually, wherein, the average gray value of the radiant image of the interior zone of unloaded object is higher, in order to improve the precision of inspection, need to improve resolution, so the size of pixel cell is reduced, and for unloaded object body, its average gray value is lower, in order to improve the transmissivity of detection, need to reduce resolution, so the size of pixel cell is increased to increase to image signal, in addition, after completing pixel cell division, resolution corresponding for above-mentioned pixel cell is prompted to user by radiation imaging apparatus, and be provided as picture preview effect, the resolution of the radiant image of object under test is determined according to the instruction of user, and the division of pixel cell is completed according to the resolution that user determines.
In technique scheme, preferably, according to described gray average, described pixel is divided and merging treatment, comprise following concrete steps: judge whether described gray average is less than or equal to predetermined gray-scale value; When judging that described gray average is less than or equal to predetermined gray-scale value, each described pixel cell after division comprises N1 × N1 pixel, and merges the X-radiation of described N1 × N1 pixel, to generate the output signal of described pixel cell, wherein, N1 is positive integer.
In this technical scheme, by judging that gray average determines the division of pixel cell, further increasing reliability and the efficiency of radiation imaging procedure, for the images of interior regions of unloaded object and the images of interior regions of heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of counterweight object carrier divides, the length of side N1 of pixel cell is greater than the length of side of the pixel cell of unloaded object, now, the resolution of radiant image is low, but radiation signal value obtains to merge and improves, be equivalent to the transmission effects that improve radiant image, improve detectability.
In technique scheme, preferably, according to described gray average, described pixel is divided and merging treatment, comprise following concrete steps: when judging that described gray average is greater than predetermined gray-scale value, each described pixel cell after division comprises N2 × N2 pixel, and merges the X-radiation of described N2 × N2 pixel, to generate the output signal of described pixel cell, wherein, N2 is positive integer, and N1 is greater than N2.
In this technical scheme, equally for the images of interior regions of the images of interior regions of unloaded object and heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of unloaded object being divided, the length of side N2 of pixel cell is less than the length of side N1 of the pixel cell of heavily loaded object, now, the resolution of radiant image is high, but radiation signal value reduces, be equivalent to carry and high-resolutionly reduce transmissivity simultaneously, more meet the detection demand of user to unloaded object.
In technique scheme, preferably, according to the radiation image of amalgamation result display object under test, also comprise: resolution corresponding for described pixel cell is prompted to user; When obtaining user and confirming to adopt described resolution, described image-region is shown using described pixel cell as new pixel.
In this technical scheme, by resolution corresponding for pixel cell is prompted to user, improve the intelligent of radiation image-forming system, although the scheme that the pixel cell that radiation imaging apparatus possesses optimization divides, to realize the automatic generation of resolution, but due to the difference of user's visual capacity, be applicable to different resolution carry out detecting and observing, therefore, by pointing out optimum resolution (one or more) to user, improve the visual experience of user, in addition, user can select to carry out certain specified resolution observation to appointed area, now, radiation imaging apparatus generates the resolution to above-mentioned appointed area, and adopt the optimal resolution of acquiescence to show to other regions, thus further increasing efficiency and the visual experience of imaging.
Fig. 2 shows the schematic block diagram of the radiation image-forming system of variable-resolution according to an embodiment of the invention.
As shown in Figure 2, the radiation image-forming system 200 of variable-resolution according to an embodiment of the invention, comprising: acquiring unit 202, the radiation image information that X-radiation and whole described radiation samples information for obtaining each pixel are corresponding; Dividing merge cells 204, for dividing whole described pixel according to described radiation image information, and merging the X-radiation being divided in the described pixel of same pixel cell; Display unit 206, for the radiation image according to amalgamation result display object under test, to complete radiation imaging procedure.
In this technical scheme, by radiation image information, whole pixel is divided, and merge the X-radiation being divided in all pixels of same pixel cell, achieve the adjustable effect of resolution, enhance the dirigibility of radiant image effect, improve the experience of user.
Particularly, after radiation imaging apparatus measuring targets carries out first detection imaging, directly do not export image, but obtain all pixels and all generate corresponding X-radiation, also namely the X-radiation of each pixel parameters such as () such as gray-scale value, brightness value and contrasts might not be shown as single picture signal.According to the average determination resolution of the X-radiation of appointed area, wherein, appointed area can divide size by predetermined image or specification is determined, or the difference according to X-radiation is determined, the image such as difference of the gray-scale value between adjacent pixel being less than or equal to designated value is divided into the modes such as an appointed area.
In addition, due to the diversity of detection array, the dividing mode of pixel cell has a variety of embodiment, such as detection array comprises M × 2 pixel, wherein, M is more than or equal to 2, the size being then divided into pixel cell comprises: 1 × 1 and 2 × 2 two kinds, and the pixel cell of each appointed area is in the same size, and for example detection array comprises M × 3 pixel, wherein, M aliquot 3, the size being then divided into pixel cell comprises: 1 × 1, 2 × 2 and 3 × 3 three kinds, and the pixel cell of each appointed area is in the same size, when obtaining output radiation imaging instruction, the X-radiation of all pixels in pixel cell is carried out merging and shows as a picture signal.
In technique scheme, preferably, described division merge cells 204, also for being divided into multiple image-region according to the image of described object under test; The radiation image-forming system 200 of described variable-resolution, also comprises: computing unit 208, for when described radiation image information is gray-scale value, calculates the gray average of the described image-region that user selectes; Described merging division unit 204 also for, according to described gray average, described pixel is divided and merging treatment.
In this technical scheme, by carrying out the partitioning standards of pixel cell according to gray-scale value, improve reliability and the efficiency of radiation imaging procedure, particularly, radiant image generates gray level image usually, wherein, the average gray value of the radiant image of the interior zone of unloaded object is higher, in order to improve the precision of inspection, need to improve resolution, so the size of pixel cell is reduced, and for unloaded object body, its average gray value is lower, in order to improve the transmissivity of detection, need to reduce resolution, so the size of pixel cell is increased to increase to image signal, in addition, after completing pixel cell division, resolution corresponding for above-mentioned pixel cell is prompted to user by radiation imaging apparatus, and be provided as picture preview effect, the resolution of the radiant image of object under test is determined according to the instruction of user, and the division of pixel cell is completed according to the resolution that user determines.
In technique scheme, preferably, also comprise: judging unit 210, for judging whether described gray average is less than or equal to predetermined gray-scale value; Described merging division unit 204 also for, when judging that described gray average is less than or equal to predetermined gray-scale value, each described pixel cell after division comprises N1 × N1 pixel, and merge the X-radiation of described N1 × N1 pixel, to generate the output signal of described pixel cell, wherein, N1 is positive integer.
In this technical scheme, by judging that gray average determines the division of pixel cell, further increasing reliability and the efficiency of radiation imaging procedure, for the images of interior regions of unloaded object and the images of interior regions of heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of counterweight object carrier divides, the length of side N1 of pixel cell is greater than the length of side of the pixel cell of unloaded object, now, the resolution of radiant image is low, but radiation signal value obtains to merge and improves, be equivalent to the transmission effects that improve radiant image, improve detectability.
In technique scheme, preferably, described merging division unit 204 also for, when judging that described gray average is greater than predetermined gray-scale value, each described pixel cell after division comprises N2 × N2 pixel, and merges the X-radiation of described N2 × N2 pixel, to generate the output signal of described pixel cell, wherein, N2 is positive integer, and N1 is greater than N2.
In this technical scheme, equally for the images of interior regions of the images of interior regions of unloaded object and heavily loaded object, default gray-scale value is 100, the gray-scale value of the images of interior regions of unloaded object is 220, the gray-scale value of the images of interior regions of heavy duty object is 20, after then the images of interior regions of unloaded object being divided, the length of side N2 of pixel cell is less than the length of side N1 of the pixel cell of heavily loaded object, now, the resolution of radiant image is high, but radiation signal value reduces, be equivalent to carry and high-resolutionly reduce transmissivity simultaneously, more meet the detection demand of user to unloaded object.
In technique scheme, preferably, also comprise: Tip element 212, for resolution corresponding for described pixel cell is prompted to user; Described display unit also 206 for, obtain user confirm to adopt described resolution time, described image-region is shown using described pixel cell as new pixel.
In this technical scheme, by resolution corresponding for pixel cell is prompted to user, improve the intelligent of radiation image-forming system, although the scheme that the pixel cell that radiation imaging apparatus possesses optimization divides, to realize the automatic generation of resolution, but due to the difference of user's visual capacity, be applicable to different resolution carry out detecting and observing, therefore, by pointing out optimum resolution (one or more) to user, improve the visual experience of user, in addition, user can select to carry out certain specified resolution observation to appointed area, now, radiation imaging apparatus generates the resolution to above-mentioned appointed area, and adopt the optimal resolution of acquiescence to show to other regions, thus further increasing efficiency and the visual experience of imaging.
Fig. 3 shows the schematic block diagram of radiation imaging apparatus according to an embodiment of the invention.
As shown in Figure 3, radiation imaging apparatus 300 according to an embodiment of the invention, comprises the radiation image-forming system 200 of the variable-resolution as described in above-mentioned any one technical scheme.
Be specifically described the radiation imaging procedure of variable-resolution according to an embodiment of the invention below in conjunction with Fig. 4 to Fig. 7, also namely pixel (Pixel point) merges into the process of Pixel unit1 and Pixelunit2.
As shown in Figure 4, object is in radiation imaging procedure, object is divided into S1 and S2, object and detection source generation relative motion, wherein, what S marked is same detection source, and the object of three mark S1 and S2 in figure is the object of same linear running, in order to the imaging process being presented at different detector position describes as Fig. 4.
As shown in Figure 5, in radiation imaging procedure, do not carry out potting gum, also namely resolution is K × K, and after normalized, now the length of side of the image of radiant image is K.
As shown in Figure 6, in radiation imaging procedure, divide pixel cell is 2 × 2 (Pixelunit1), and also namely resolution is (K/2) × (K/2), and now the length of side of the image of radiant image is 1/2K.
As shown in Figure 7, in radiation imaging procedure, divide pixel cell is 3 × 3 (Pixelunit2), and also namely resolution is (K/3) × (K/3), and now the length of side of the image of radiant image is 1/3K.
Although be worth feature it is noted that carried out different divisions to pixel cell, radiation imaging procedure is change not, by obtaining the imaging effect of controlled resolution to the merging treatment of X-radiation value.
In addition, be described with the radiation imaging apparatus in the radiation imaging apparatus in the radiation imaging apparatus in 5mm × 5mm single array source, 5mm × 5mm double array source and the single array source of 10mm × 10mm, the signal value of pixel cell is as shown in table 1, wherein, the numerical value of signal value, noise and dynamic range is all through the numerical value of normalized.
Table 1
| Signal value | Noise | Dynamic range | |
| The single array source of 5mm × 5mm | 1 | 1 | 1 |
| The double array source of 5mm × 5mm | 2 | 1.414 | 1.414 |
| The single array source of 10mm × 10mm | 8 | 2.828 | 2.828 |
More than be described with reference to the accompanying drawings technical scheme of the present invention, considered in correlation technique, how to design a kind of radiant image scheme of variable-resolution to solve the technical matters of the contradiction between dynamic imaging scope and resolution.Therefore, the present invention proposes a kind of radiation imaging method of variable-resolution, a kind of radiation image-forming system of variable-resolution and a kind of radiation imaging apparatus, by adjusting resolution for object type to be imaged, improve the dirigibility of radiation imaging procedure, solve the technical matters of the contradiction between dynamic imaging scope and resolution, meet the diversified imaging demand of user easily.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a radiation imaging method for variable-resolution, is characterized in that, comprising:
Obtain the X-radiation of each pixel and radiation image information corresponding to whole described radiation samples information;
According to described radiation image information, whole described pixel is divided, and merge the X-radiation being divided in the described pixel of same pixel cell;
According to the radiation image of amalgamation result display object under test, to complete radiation imaging procedure.
2. the radiation imaging method of variable-resolution according to claim 1, it is characterized in that, according to described radiation image information, whole described pixel is divided, and merges the X-radiation being divided in the described pixel of same pixel cell, comprise following concrete steps:
Multiple image-region is divided into according to the image of described object under test;
When described radiation image information is gray-scale value, calculate the gray average of the described image-region that user selectes;
According to described gray average, described pixel is divided and merging treatment.
3. the radiation imaging method of variable-resolution according to claim 2, is characterized in that, divides and merging treatment described pixel according to described gray average, comprises following concrete steps:
Judge whether described gray average is less than or equal to predetermined gray-scale value;
When judging that described gray average is less than or equal to predetermined gray-scale value, each described pixel cell after division comprises N1 × N1 pixel, and merges the X-radiation of described N1 × N1 pixel, to generate the output signal of described pixel cell, wherein, N1 is positive integer.
4. the radiation imaging method of variable-resolution according to claim 3, is characterized in that, divides and merging treatment described pixel according to described gray average, comprises following concrete steps:
When judging that described gray average is greater than predetermined gray-scale value, each described pixel cell after division comprises N2 × N2 pixel, and merges the X-radiation of described N2 × N2 pixel, to generate the output signal of described pixel cell, wherein, N2 is positive integer, and N1 is greater than N2.
5. the radiation imaging method of the variable-resolution according to claim 3 or 4, is characterized in that, according to the radiation image of amalgamation result display object under test, also comprises:
Resolution corresponding for described pixel cell is prompted to user;
When obtaining user and confirming to adopt described resolution, described image-region is shown using described pixel cell as new pixel.
6. a radiation image-forming system for variable-resolution, is characterized in that, comprising:
Acquiring unit, the radiation image information that X-radiation and whole described radiation samples information for obtaining each pixel are corresponding;
Dividing merge cells, for dividing whole described pixel according to described radiation image information, and merging the X-radiation being divided in the described pixel of same pixel cell;
Display unit, for the radiation image according to amalgamation result display object under test, to complete radiation imaging procedure.
7. the radiation image-forming system of variable-resolution according to claim 6, is characterized in that, described division merge cells, also for being divided into multiple image-region according to the image of described object under test;
The radiation image-forming system of described variable-resolution, also comprises:
Computing unit, for when described radiation image information is gray-scale value, calculates the gray average of the described image-region that user selectes;
Described merging division unit also for, according to described gray average, described pixel is divided and merging treatment.
8. the radiation image-forming system of variable-resolution according to claim 7, is characterized in that, also comprises:
Judging unit, for judging whether described gray average is less than or equal to predetermined gray-scale value;
Described merging division unit also for, when judging that described gray average is less than or equal to predetermined gray-scale value, each described pixel cell after division comprises N1 × N1 pixel, and merge the X-radiation of described N1 × N1 pixel, to generate the output signal of described pixel cell, wherein, N1 is positive integer.
9. the radiation image-forming system of variable-resolution according to claim 8, it is characterized in that, described merging division unit also for, when judging that described gray average is greater than predetermined gray-scale value, each described pixel cell after division comprises N2 × N2 pixel, and merges the X-radiation of described N2 × N2 pixel, to generate the output signal of described pixel cell, wherein, N2 is positive integer, and N1 is greater than N2.
10. the radiation image-forming system of variable-resolution according to claim 8 or claim 9, is characterized in that, also comprise:
Tip element, for being prompted to user by resolution corresponding for described pixel cell;
Described display unit also for, obtain user confirm to adopt described resolution time, described image-region is shown using described pixel cell as new pixel.
11. 1 kinds of radiation imaging apparatus, is characterized in that, comprising: the radiation image-forming system of the variable-resolution according to any one of claim 6 to 10.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107016353A (en) * | 2017-03-13 | 2017-08-04 | 北京理工大学 | A kind of method and system of variable resolution target detection and identification integration |
| CN111184528A (en) * | 2020-03-12 | 2020-05-22 | 上海交通大学 | Vertical type computed tomography device based on X-ray source array |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0712235A2 (en) * | 1994-11-08 | 1996-05-15 | Xerox Corporation | Pixel pair grid halftoning for a hyperacuity printer |
| US6094509A (en) * | 1994-06-07 | 2000-07-25 | United Parcel Service Of America, Inc. | Method and apparatus for decoding two-dimensional symbols in the spatial domain |
| CN1509464A (en) * | 2001-03-14 | 2004-06-30 | 格伦迪希公司 | Method and device for improving grey scale reslution controlled by pulse width modulated |
| CN1578389A (en) * | 2003-07-14 | 2005-02-09 | 戴洛格半导体公司 | Pixel with variable resolution during exposure |
| CN101980534A (en) * | 2009-12-15 | 2011-02-23 | 铜陵市维新投资咨询有限公司 | Area-based resolution-adjustable method |
| US8306362B2 (en) * | 2005-07-20 | 2012-11-06 | Omnivision Technologies, Inc. | Selective pixel binning and averaging based on scene illuminant |
-
2015
- 2015-05-15 CN CN201510250519.XA patent/CN104819991A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094509A (en) * | 1994-06-07 | 2000-07-25 | United Parcel Service Of America, Inc. | Method and apparatus for decoding two-dimensional symbols in the spatial domain |
| EP0712235A2 (en) * | 1994-11-08 | 1996-05-15 | Xerox Corporation | Pixel pair grid halftoning for a hyperacuity printer |
| CN1509464A (en) * | 2001-03-14 | 2004-06-30 | 格伦迪希公司 | Method and device for improving grey scale reslution controlled by pulse width modulated |
| CN1578389A (en) * | 2003-07-14 | 2005-02-09 | 戴洛格半导体公司 | Pixel with variable resolution during exposure |
| US8306362B2 (en) * | 2005-07-20 | 2012-11-06 | Omnivision Technologies, Inc. | Selective pixel binning and averaging based on scene illuminant |
| CN101980534A (en) * | 2009-12-15 | 2011-02-23 | 铜陵市维新投资咨询有限公司 | Area-based resolution-adjustable method |
Non-Patent Citations (1)
| Title |
|---|
| 王耀南等编著: "《计算机图像处理与识别技术》", 30 June 2001 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107016353A (en) * | 2017-03-13 | 2017-08-04 | 北京理工大学 | A kind of method and system of variable resolution target detection and identification integration |
| CN107016353B (en) * | 2017-03-13 | 2019-08-23 | 北京理工大学 | A kind of integrated method and system of variable resolution target detection and identification |
| CN111184528A (en) * | 2020-03-12 | 2020-05-22 | 上海交通大学 | Vertical type computed tomography device based on X-ray source array |
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