CN114813796A - Image acquisition method, controller, image acquisition system and device - Google Patents
Image acquisition method, controller, image acquisition system and device Download PDFInfo
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Abstract
The disclosure provides an image acquisition method, a controller, an image acquisition system and an image acquisition device, wherein the method comprises the following steps: acquiring an initial position of a sample to be collected at each set angle in at least one set angle and a target position at each set angle; judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions under all the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position; the image acquisition device is controlled to acquire the image of the sample to be acquired after the position adjustment, so that the position adjustment of any initial position is automatically performed by controlling the position adjustment device, manual adjustment is not needed, the accuracy of the position adjustment is improved, the sample to be acquired can be located at the best scanning position in the center of the scanning visual field, and the scanning quality is improved to the maximum extent.
Description
Technical Field
The present disclosure relates to the field of rock scanning technologies, and in particular, to an image acquisition method, a controller, an image acquisition system, and an image acquisition device.
Background
The Computed Tomography (CT) technique can obtain high-resolution mineral components and pore structures of an article without destroying a sample to be collected (such as a core sample), and provides a strong technical support for quantitative characterization and three-dimensional reconstruction of the microstructure of the article. When a sample to be acquired is subjected to CT scanning, the position of the sample on the sample table is often required to be adjusted in the height direction and the horizontal direction, so that the sample is just positioned on the central connecting line of the ray source and the flat panel detector, namely the center of a visual window of scanning software, and the optimal global scanning effect can be obtained.
However, in the related art, the position of the sample on the CT scanning sample stage can only be manually adjusted by naked eyes, and the manual adjustment method is to determine whether the position is located at the center of the visualization window, which has a slight deviation from the optimal sample position, and thus it is difficult to present the optimal sample scanning effect.
Disclosure of Invention
The present disclosure is directed to solving, at least to some extent, one of the technical problems in the above-described technology.
Therefore, the present disclosure provides an image collecting method, a controller, an image collecting system and an image collecting device, wherein by determining whether any initial position of initial positions of samples to be collected at various set angles matches with a corresponding target position, and when any initial position does not match with the corresponding target position, a position adjusting device is controlled to automatically perform position adjustment on any initial position, and image collection is performed on the adjusted samples to be collected, so that the position adjusting device is controlled to automatically perform position adjustment on any initial position, manual adjustment is not needed, accuracy of position adjustment is improved, and further, the samples to be collected can be located at an optimal scanning position in the center of a scanning visual field, and scanning quality is improved to the maximum extent.
An embodiment of a first aspect of the present disclosure provides an image acquisition method, including: acquiring an initial position of a sample to be collected at each set angle in at least one set angle and a target position at each set angle; judging whether any initial position is matched with a corresponding target position or not according to any initial position in the initial positions under the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position to obtain a sample to be collected after the position is adjusted; and controlling the image collector to collect the image of the sample to be collected after the position is adjusted.
An embodiment of a second aspect of the present disclosure provides a controller, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect of the present disclosure.
An embodiment of a third aspect of the present disclosure provides an image capturing system, including: the method comprises the following steps: the device comprises a controller, a position adjusting device and an image collector; the controller is used for acquiring an initial position of a sample to be collected at each set angle in at least one set angle and a target position at each set angle; judging whether any initial position is matched with a corresponding target position or not according to any initial position in the initial positions under the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted; controlling an image collector to collect images of the samples to be collected after the positions are adjusted; the position adjusting device is connected with the controller and used for adjusting the position of any initial position under the control of the controller; and the image collector is connected with the controller and is used for collecting the image of the sample to be collected after the position adjustment under the control of the controller when any initial position is matched with the corresponding target position.
An embodiment of a fourth aspect of the present disclosure provides an image capturing apparatus, including: the acquisition module is used for acquiring an initial position of a sample to be acquired at each set angle in at least one set angle and a target position at each set angle; the judging module is used for judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions under the set angles; the processing module is used for responding to an adjusting instruction when any initial position is not matched with a corresponding target position, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted; and the acquisition module is used for controlling the image acquisition device to acquire the image of the sample to be acquired after the position adjustment.
A fifth aspect of the present disclosure is directed to a non-transitory computer readable storage medium, having a computer program stored thereon, the computer program, when executed by a processor, implementing the method according to the first aspect.
A sixth aspect of the present disclosure provides a computer program product, comprising computer instructions stored with a computer program, which when executed by a processor implement the method of the first aspect.
According to the technical scheme, the initial position of a sample to be collected at each set angle and the target position at each set angle are obtained; judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions under all the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted; the method comprises the steps of controlling a position adjusting device to automatically adjust the position of any initial position and collecting the image of the adjusted sample to be collected when the initial position is not matched with the corresponding target position by judging whether the initial position of the sample to be collected in each set angle is matched with the corresponding target position, and controlling the position adjusting device to automatically adjust the position of any initial position and collect the image of the adjusted sample to be collected, so that the sample to be collected is located at the optimal scanning position in the center of the scanning visual field, and the scanning quality is improved to the maximum extent.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart diagram of an image acquisition method provided according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of an image acquisition method according to another embodiment of the present disclosure;
FIG. 3 is a schematic view of a reference line provided according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of an image capturing method according to another embodiment of the disclosure;
fig. 5 is a schematic flow chart of an image acquisition method according to another embodiment of the present disclosure;
FIG. 6 is a schematic illustration of a reference vertical central axis provided in accordance with an embodiment of the present disclosure;
FIG. 7 is a schematic illustration of a reference horizontal mid-axis provided in accordance with an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an image acquisition system provided in accordance with an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of a sample stage provided according to an embodiment of the present disclosure;
FIG. 10 is a schematic structural view of a position adjustment device according to one embodiment of the present disclosure;
FIG. 11 is a schematic structural view of a three-stage axial telescopic tube according to an embodiment of the present disclosure;
FIG. 12 is a schematic view of a sample holding stage according to one embodiment of the present disclosure;
fig. 13 is a schematic structural diagram of an image capturing device according to an embodiment of the present disclosure;
fig. 14 is a block diagram of a controller according to an embodiment of the present disclosure;
description of reference numerals: 6-1: recording windows at the edge and the center; 6-2: an axial position registration line; 6-3: a cross line; 7-1: a horizontal position recording line; 1010: a fixed base; 1020: a position adjustment structure; 1021: a vertical adjustment controller; 1022: a three-stage axial telescopic pipe; 1023: a horizontal adjustment controller; 1024: a horizontal adjusting table; 1025: and a sample fixing table.
Detailed Description
Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present disclosure, and should not be construed as limiting the present disclosure.
In the related art, the sample position on the CT scanning sample table is manually adjusted, and in the process, the radiation source and the electric protection lead door of the scanning chamber need to be frequently opened and closed, so that not only is time consumed, but also the loss of the radiation source and the electric protection lead door is caused, and the failure probability of the CT scanning system is increased.
In order to solve the above problems, the present disclosure provides an image acquisition method, a controller, an image acquisition system and an image acquisition apparatus.
An image capturing method, a controller, an image capturing system, and an apparatus according to embodiments of the present disclosure are described below with reference to the drawings.
Fig. 1 is a schematic flow chart diagram of an image acquisition method according to an embodiment of the present disclosure.
An execution subject of the heating control method in the embodiment of the present disclosure is an image acquisition device, which may be a controller.
As shown in fig. 1, the method may include the steps of:
It should be understood that, in order to scan a sample at each angle to obtain a corresponding scanned image, the sample stage is a table top capable of rotating and placing the sample, and further, based on the sample stage, an initial position of the sample to be collected at least one set angle can be obtained, for example, when the sample stage rotates 0 degree, an initial position of the sample to be collected at the set angle of 0 degree can be obtained; when the sample platform rotates 90 degrees, can acquire the initial position of waiting to gather the sample at the set angle under 90 degrees, and in the same way, when the sample platform rotates 180 degrees, 270 degrees and 360 degrees, can acquire the initial position under the corresponding angle respectively, wherein, the initial position coordinate can be two-dimensional coordinate.
The target position at each set angle is the optimal position of the scanning field of view of the sample stage at the set angle of rotation, and the target position at each set angle may be set in advance.
And 102, judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions under the set angles.
As a possible implementation manner of the embodiment of the present disclosure, it may be determined whether any initial position matches with the corresponding target position for any initial position in the initial positions at the respective set angles. For example, the at least one setting angle includes 0 degree, 90 degrees, 180 degrees, 270 degrees, and 360 degrees, and it can be determined whether the initial position at 0 degree is matched with the target position corresponding to 0 degree, whether the initial position at 90 degrees is matched with the target position corresponding to 90 degrees, whether the initial position at 180 degrees is matched with the target position corresponding to 180 degrees, whether the initial position at 270 degrees is matched with the target position corresponding to 270 degrees, and whether the initial position at 360 degrees is matched with the target position corresponding to 360 degrees, respectively.
As a possible implementation manner of the embodiment of the present disclosure, the at least one set angle may include 0 degree and 90 degrees, and for an initial position at 0 degree and an initial position at 90 degrees, it may be respectively determined whether the initial position at 0 degree matches a target position corresponding to 0 degree, and whether the initial position at 90 degrees matches a target position at 90 degrees, and when the initial position at 0 degree matches a target position corresponding to 0 degree, it may be determined whether the initial position at 180 degrees matches a target position corresponding to 180 degrees, and the matching between the initial position at 0 degree and the target position corresponding to 0 degree is verified; when the initial position at 90 degrees is matched with the target position at 90 degrees, the matching between the initial position at 90 degrees and the target position at 90 degrees can be verified by using whether the initial position at 270 degrees is matched with the target position corresponding to 270 degrees. If the initial position at 180 degrees is not matched with the target position corresponding to 180 degrees, determining that the position of the sample to be collected after the position adjustment at 0 degrees is not matched with the target position corresponding to 0 degrees; and when the initial position at 180 degrees is matched with the target position corresponding to 180 degrees, determining that the position of the sample to be collected after the position adjustment at 0 degrees is matched with the target position corresponding to 0 degrees.
And 103, when any initial position is not matched with the corresponding target position, responding to the adjusting instruction, and controlling the position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain the position-adjusted sample to be collected.
And when any initial position is not matched with the corresponding target position, responding to the adjusting instruction, and controlling the position adjusting device to adjust any initial position to the corresponding target position so that the sample to be collected is located at the optimal position of the scanning visual field. Wherein, the position adjusting device is a device for adjusting the position of the sample to be collected.
And 104, controlling the image collector to collect the image of the sample to be collected after the position is adjusted.
And further, controlling the image collector to collect the image of the sample to be collected after the position adjustment so as to obtain a scanning image of the sample to be collected at the optimal position of the scanning visual field.
In summary, by judging whether any initial position of the initial positions of the at least one set angle at which the sample to be collected is located is matched with the corresponding target position, and when any initial position is not matched with the corresponding target position, the position adjusting device is controlled to automatically adjust the position of any initial position, and the adjusted sample to be collected is subjected to image collection, therefore, the position adjusting device can be controlled to automatically adjust the position of any initial position, manual adjustment is not needed, the accuracy of position adjustment is improved, the sample to be collected can be located at the best scanning position in the center of the scanning visual field, and the scanning quality is improved to the maximum extent.
To clearly illustrate how to determine whether any initial position matches with the corresponding target position, as shown in fig. 2, fig. 2 is a schematic flow chart of an image acquisition method according to another embodiment of the present disclosure, in an embodiment of the present disclosure, at least one central axis of a sample to be acquired may be matched with a reference line of the corresponding target position to determine whether any initial position matches with the corresponding target position, and the embodiment shown in fig. 2 may include the following steps:
It should be understood that, as a possible implementation manner of the embodiment of the present disclosure, in order to accurately determine whether any initial position matches with the corresponding target position, the reference line corresponding to the target position may be preset, and the reference line includes a horizontal reference line and a vertical reference line that intersect vertically, and an intersection point of the horizontal reference line and the vertical reference line is a central coordinate point of the target position.
As an example, from the center coordinate point of any initial position, at least one horizontal central axis of the sample to be collected and a vertical central axis passing through the center coordinate point of the initial position are determined.
Alternatively, a center coordinate point of any initial position may be determined, and from the center coordinate point, a horizontal central axis and a vertical central axis passing through the center coordinate point may be determined, and further, a horizontal central axis parallel to the horizontal central axis may be determined. The at least one horizontal central axis may comprise: a horizontal central axis passing through the central coordinate point and a horizontal central axis parallel to the horizontal central axis.
The method comprises the steps of determining at least one reference positioning line of a sample to be collected according to any coordinate position in any initial position, and determining a central coordinate point of any initial position according to the reference positioning line, wherein the at least one reference positioning line comprises a reference horizontal central axis and a reference vertical central axis of the sample to be collected at any initial position.
And step 204, determining whether any initial position is matched with the corresponding target position according to at least one central axis, the horizontal reference line and the vertical reference line.
Optionally, determining whether the vertical central axis matches the vertical reference line; determining a reference coordinate range corresponding to the horizontal reference line; judging whether a coordinate range corresponding to each horizontal axis in at least one horizontal central axis is in a reference coordinate range or not; and when the vertical central axis is matched with the vertical reference line and the coordinate ranges corresponding to the horizontal central axes are all in the reference coordinate range, determining that any initial position is matched with the corresponding target position.
That is to say, under the angle corresponding to any initial position, the judgment standard of the vertical optimal position is that the vertical central axis of the sample to be collected in the visual window coincides with the vertical reference line (vertical line) of the reference line (cross line), the judgment standard of the horizontal optimal position is that both ends of the sample to be collected in the visual window are within the visual field range and are symmetrically distributed along the horizontal line of the reference line, and further, whether the vertical central axis coincides with the vertical reference line or not can be judged, whether the coordinate range corresponding to each horizontal axis in at least one horizontal central axis is within the reference coordinate range or not is judged, and when the vertical central axis is matched with the vertical reference line and the coordinate range corresponding to each horizontal central axis is within the reference coordinate range, it is determined that any initial position is matched with the corresponding target position.
And step 205, when any initial position is not matched with the corresponding target position, responding to the adjusting instruction, and controlling the position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain the position-adjusted sample to be collected.
And step 206, controlling the image collector to collect the image of the sample to be collected after the position is adjusted.
It should be noted that the execution processes of step 201 and step 205 to step 206 may be implemented by any one of the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit this, and are not described again.
In summary, a reference line of a target position corresponding to any initial position is determined for any initial position in the initial positions at the set angles; wherein the reference lines comprise a horizontal reference line and a vertical reference line which are vertically intersected; determining at least one central axis of a sample to be collected according to the coordinates of any initial position; and determining whether any initial position is matched with the corresponding target position according to the at least one central axis, the horizontal reference line and the vertical reference line, so that whether any initial position is matched with the corresponding target position can be determined by matching the at least one central axis of the sample to be collected with the reference line of the corresponding target position.
To clearly illustrate how to control the position adjustment device to perform position adjustment on any initial position according to a corresponding target position, as shown in fig. 4, fig. 4 is a schematic flow chart of an image acquisition method according to another embodiment of the present disclosure, in an embodiment of the present disclosure, the position adjustment device may be controlled to perform position adjustment on any initial position according to a coordinate difference between a center coordinate point corresponding to any initial position and a center coordinate point corresponding to the target position, and the embodiment shown in fig. 6 may include the following steps:
In step 403, a central coordinate point corresponding to any initial position is determined.
Optionally, at least one reference positioning line of the sample to be collected is determined according to any initial position, where the at least one reference positioning line includes a reference horizontal central axis and a reference vertical central axis of the sample to be collected at any initial position.
That is to say, according to any coordinate point in any initial position, a vertical reference positioning line can be added to the visual window to measure the transverse edge position information of the sample to be collected and automatically output the position information of the vertical center of the sample.
Further, the center coordinate point of the initial position is compared with the center coordinate point corresponding to the target position (intersection of the vertical reference line and the horizontal reference line) to obtain a coordinate difference between the center coordinate point of the initial position and the center coordinate point corresponding to the corresponding target position.
And 405, controlling a position adjusting device to adjust the position of any initial position according to the coordinate difference so as to obtain the position-adjusted sample to be collected.
And then, according to the coordinate difference, controlling the position adjusting device to carry out position adjustment on any initial position so as to minimize the coordinate difference, thereby obtaining the sample to be collected after the position adjustment. Wherein the position adjusting device is a device for adjusting the position.
Wherein, it should be noted that, because steerable position control device can adjust initial position automatically, can avoid the frequent electronic protection lead door that opens and closes the ray source and scan the cavity of staff, the loss and the trouble probability of furthest reduction electronic lead door and ray source can also reduce experiment operating personnel's radiation threat simultaneously.
And 406, controlling the image collector to collect the image of the sample to be collected after the position is adjusted.
It should be noted that the execution processes of steps 401-402 and step 406 may be implemented by any manner in the embodiments of the present disclosure, and the embodiments of the present disclosure do not limit this and are not described again.
To sum up, through the coordinate difference between the central coordinate point that initial position corresponds and the central coordinate point of the target location that corresponds, control position adjusting device treats and gathers the sample and carries out position control, therefore, position adjusting device can treat according to the coordinate difference is automatic to gather the sample and carry out position control, need not manual regulation, position control's accuracy has been improved, and then, can make and wait to gather the sample and be located the best scanning position of scanning field of vision positive center, furthest's improvement scanning quality, and, can avoid the frequent electronic protection plumbous door that opens and close ray source and scanning chamber of staff, furthest's reduction electronic plumbous door and the loss and the trouble of ray source take place the probability, can also reduce experiment operating personnel's radiation threat simultaneously.
In order to more clearly illustrate the above embodiments, the description will now be made by way of example.
For example, as shown in fig. 5, taking a sample to be collected as a core sample and taking a controller as a bluetooth module for control as an example, in the first step, image collection and visualization software at a computer end is turned on, and a sample stage of a CT scanning system is returned to a zero position (i.e., a rotation angle is 0 °). And after the core sample is fixed, closing an electric protective lead door of the CT scanning system and opening a ray source.
The horizontal and vertical positions of the ray source and the flat panel detector are adjusted through the motion control window of the CT scanning system until a scanning sample can completely appear in the visual window in the process of rotating 360 degrees, and the scanning resolution meets the testing requirement. And setting parameters such as voltage, current, exposure time, image merging number and the like required by scanning in a scanning parameter setting window.
Alternatively, the scan resolution is the distance from the core sample to the source (e.g., SOD of window 582.55mm) divided by the distance from the source to the flat panel detector (SDD of window 1283.97mm), so the scan resolution in this embodiment may be 582.55 ÷ 1283.97 ═ 0.4537mm ═ 45.37 um.
In the second step, the core sample is observed using a visualization window and a cross-hair is added as a reference, as shown in fig. 6. Adding axial position recording lines (referring to a vertical central axis), respectively aligning the left edge and the right edge of the core sample, automatically acquiring position parameters into an edge and center position recording window (shown as 6-1 in figure 6) after double-click, and automatically displaying the recording lines and the position parameters of the center of the sample. And judging whether the current position of the core sample is the optimal scanning position or not by comparing the position relationship between the axial position recording line (shown as 6-2 in figure 6) and the cross line (shown as 6-3 in figure 6) of the center of the sample, namely whether the axial center position recording line (vertical central axis) of the sample is superposed with the vertical line of the cross line. Then, as shown in fig. 7, a horizontal position recording line (refer to a horizontal central axis, as shown in fig. 7-1) is added, and after the position information of the upper and lower edges is collected and the central position is obtained, a similar judgment is made. If the current position of the sample is the optimal position, the sample position does not need to be finely adjusted, and the CT scanning of the sample can be carried out after the scanning parameters are set; if not, fine adjustment of the sample position by the bluetooth control module is required.
And thirdly, scanning positions comprise an axial optimal position and a transverse optimal position. The judgment standard of the axial optimal position is that the recording line of the axial central position of the core sample in the visual window is superposed with the vertical line of the cross line, and the superposition is always kept in the process of rotating the scanning sample by 360 degrees without eccentric rotation. The judgment standard of the transverse optimal position is that the two ends of the core sample in the visual window are both in the visual field range and are symmetrically distributed along the transverse line of the cross line, namely the recording line of the transverse central position of the core sample is superposed with the transverse line of the cross line;
and fourthly, establishing communication connection between a vertical adjustment controller (an axial adjustment control motor) and a horizontal adjustment controller (a transverse adjustment control motor) and an operation terminal through a Bluetooth module, receiving a control instruction of the operation terminal through the Bluetooth module by the controller, controlling the motor to perform remote position adjustment on the sample stage, and observing whether the sample is in the optimal scanning position or not in an image acquisition visual software window matched with the CT scanning system. The control interface of the operation terminal is provided with a direction control module and a distance input module, and the purpose of remotely adjusting the position of the sample stage is achieved by inputting the moving distance and clicking a corresponding direction key. The direction control module comprises direction control keys such as a front direction control key, a rear direction control key, a left direction control key, a right direction control key, an upper direction control key and a lower direction control key, and the distance from the input module is the distance relation between a sample vertical or horizontal center position recording line and a cross line vertical line or a cross line in the third step.
And fifthly, when the rotation angle of a sample table of the scanning system is 0 degrees, the rotation angle of the sample table is adjusted to be 90 degrees through scanning software after the core sample is at the optimal scanning position, and the fourth step is repeated to ensure that the sample is also at the optimal scanning position at 90 degrees. Then rotated to 180 °, 270 °, 360 °, etc. to see if the sample is still in the optimal scanning position. After the position of the core sample is adjusted successfully, CT scanning can be performed on the sample after scanning parameters and modes are set.
According to the image acquisition method, the initial position of the sample to be acquired at each set angle in at least one set angle and the target position of the sample at each set angle are acquired; judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions of all the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted; the image acquisition device is controlled to acquire the image of the sample to be acquired after the position adjustment, so that the position adjustment of any initial position is automatically performed by controlling the position adjustment device, manual adjustment is not needed, the accuracy of the position adjustment is improved, the sample to be acquired can be located at the best scanning position in the center of the scanning visual field, and the scanning quality is improved to the maximum extent.
In order to implement the foregoing embodiments, an embodiment of the present disclosure further provides a controller, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of FIGS. 1-7.
In order to implement the above embodiments, the present disclosure further provides an image capturing system.
Fig. 8 is a schematic structural diagram of an image capturing system according to an embodiment of the present disclosure, and as shown in fig. 8, an image capturing system 800 includes: controller 810, position adjustment device 820, and image collector 830.
The controller 810 is configured to obtain an initial position at each set angle and a target position at each set angle in at least one set angle at which a sample to be collected is located; judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions under all the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted; controlling an image collector to collect images of the samples to be collected after the position adjustment; a position adjusting device 820 connected with the controller for adjusting the position of any initial position under the control of the controller; and the image collector 830 is connected with the controller, and is configured to collect an image of the sample to be collected after the position adjustment under the control of the controller when any initial position is matched with the corresponding target position.
The controller can establish communication connection with the operation terminal through the Bluetooth module, receive a control instruction of the operation terminal through the Bluetooth module, and control the vertical adjustment controller and the horizontal adjustment controller to perform remote position adjustment on the rock core sample according to the instruction of the operation terminal.
In addition, it should be noted that the controller may be further connected to the sample stage, the position adjusting device may be placed on the sample stage, and the controller may further control the sample stage to rotate so as to obtain an initial position of the sample to be collected at the at least one set angle and a target position of the sample at each set angle. As shown in fig. 9, three bolt grooves (left side of fig. 9) may be disposed at the center of the sample stage, and the fixing base of the position adjusting device may be fixed on the sample stage of the CT scanning system by bolts (right side of fig. 9).
As a possible implementation manner of the embodiment of the present disclosure, as shown in fig. 10, the position adjusting device includes a fixed base 1010 and a position adjusting structure 1020, where the position adjusting structure 1020 is provided with a vertical adjusting controller 1021, a three-stage axial telescopic tube 1022, a horizontal adjusting controller 1023, a horizontal adjusting stage 1024 and a sample fixing stage 1025 from bottom to top.
Wherein, the fixed base 1010 is connected with the bottom of the position adjusting structure 1020 and is used for fixing the position adjusting structure; and the vertical adjustment controller is connected with the three-stage axial telescopic pipe and is used for controlling the telescopic length of the three-stage axial telescopic pipe and adjusting the position of a sample to be collected in the vertical direction.
The vertical adjustment controller (axial adjustment control motor) is positioned at the upper part of the fixed base, and controls the telescopic length of the three-stage axial telescopic pipe through a circuit to adjust the height of the sample table in the axial direction. The three-stage axial telescopic pipe is made of carbon steel and has the advantages of corrosion resistance, wear resistance, high strength and the like. The left part of fig. 11 is in a fully contracted state of the three-stage axial telescopic tube, and the right part of fig. 11 is in a fully extended state of the three-stage axial telescopic tube.
And a horizontal adjustment controller 1023 connected with the horizontal adjustment table 1024 for controlling the horizontal adjustment table to adjust the position of the sample to be collected in the horizontal direction. The horizontal (transverse) adjusting controller is installed at the top of the three-stage axial telescopic pipe, and the horizontal adjusting platform is controlled by a circuit to move in the transverse front, rear, left and right directions and is used for adjusting the displacement of the sample platform on the horizontal plane;
the sample fixing stage 1025 is used for fixing a sample to be collected, and it should be noted that, as shown in fig. 12, the sample fixing stage may be provided in two types, i.e., a square sample fixing stage (left portion in fig. 11) and a circular sample fixing stage (right portion in fig. 12). The sample fixed station of two kinds of specifications can satisfy the test demand of conventional rock core scanning, and adjustable movable bolt all installs around the sample fixed station, can play the effect of fixed rock core sample according to the elasticity of the size adjustment movable bolt of rock core sample, ensures that the scanning process sample can not appear rocking and influence the scanning effect.
In addition, the material of the sample fixing table can be low-density and high-ray penetrability materials such as high-molecular resin or plastics, and the core sample can be conveniently separated in the scanned image (the density of the core sample is higher, and the contrast with the resin or plastic material is very obvious). The sample fixing table made of metal is avoided, and metal has high attenuation characteristics, so that X-ray hardening can be caused to generate metal artifacts, and the scanning effect of the core sample is influenced.
As a possible implementation manner of the embodiment of the present disclosure, the position adjustment apparatus further includes: and a power supply module.
The power supply module is connected with the vertical adjustment controller and used for supplying electric energy to the vertical adjustment controller; and the power supply module is connected with the horizontal adjustment controller and is used for supplying electric energy to the horizontal adjustment controller.
As an example, the power module may be installed inside the position adjustment device, and may be powered through a power line of the CT scanning system to provide stable operating power for the vertical adjustment controller and the horizontal adjustment controller.
Corresponding to the image capturing method provided in the embodiments of fig. 1 to 7, the present disclosure also provides an image capturing device, and since the image capturing device provided in the embodiments of the present disclosure corresponds to the image capturing method provided in the embodiments of fig. 1 to 7, the implementation manner of the image capturing method is also applicable to the image capturing device provided in the embodiments of the present disclosure, and will not be described in detail in the embodiments of the present disclosure.
Fig. 13 is a schematic structural diagram of an image capturing apparatus according to an embodiment of the present disclosure, and as shown in fig. 13, an image capturing apparatus 1300 includes: an acquisition module 1310, a determination module 1320, a processing module 1330, and an acquisition module 1340.
The acquiring module 1310 is configured to acquire an initial position at each set angle and a target position at each set angle in at least one set angle at which a sample to be acquired is located; a determining module 1320, configured to determine, for any initial position in the initial positions at each set angle, whether any initial position matches with a corresponding target position; a processing module 1330, configured to, when any initial position is not matched with the corresponding target position, respond to the adjustment instruction, and according to the corresponding target position, control the position adjustment device to perform position adjustment on any initial position, so as to obtain a position-adjusted sample to be collected; and the acquisition module is used for controlling the image acquisition device to acquire the image of the sample to be acquired after the position is adjusted.
As a possible implementation manner of the embodiment of the present disclosure, the determining module 1320 is further configured to determine, for any initial position in the initial positions at each set angle, a reference line of a target position corresponding to the any initial position; wherein the reference lines comprise a horizontal reference line and a vertical reference line which are vertically intersected; determining at least one central axis of a sample to be collected according to any initial position; and determining whether any initial position is matched with the corresponding target position according to at least one central axis, the horizontal reference line and the vertical reference line.
As a possible implementation manner of the embodiment of the present disclosure, the determining module 1320 is further configured to determine whether the vertical central axis is matched with the vertical reference line; determining a reference coordinate range corresponding to the horizontal reference line; judging whether a coordinate range corresponding to each horizontal axis in at least one horizontal central axis is in a reference coordinate range or not; and when the vertical central axis is matched with the vertical reference line and the coordinate ranges corresponding to the horizontal central axes are all in the reference coordinate range, determining that any initial position is matched with the corresponding target position.
As a possible implementation manner of the embodiment of the present disclosure, the processing module 1330 is further configured to determine a center coordinate point corresponding to any initial position; acquiring a coordinate difference between the central coordinate point and a central coordinate point corresponding to the corresponding target position; and controlling a position adjusting device to adjust the position of any initial position according to the coordinate difference so as to obtain the sample to be collected after the position is adjusted.
As a possible implementation manner of the embodiment of the present disclosure, the processing module 1330 is further configured to determine at least one reference positioning line of the sample to be collected according to any initial position, where the at least one reference positioning line includes a reference horizontal central axis and a reference vertical central axis of the sample to be collected at any initial position; and determining a central coordinate point of the sample to be collected at any initial position according to the reference horizontal central axis and the reference vertical central axis.
The image acquisition device of the embodiment of the disclosure acquires an initial position under each set angle and a target position under each set angle in at least one set angle in which a sample to be acquired is located; judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions of all the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted; the image acquisition device is controlled to acquire the image of the sample to be acquired after the position adjustment, so that the position adjustment of any initial position is automatically performed by controlling the position adjustment device, manual adjustment is not needed, the accuracy of the position adjustment is improved, the sample to be acquired can be located at the best scanning position in the center of the scanning visual field, and the scanning quality is improved to the maximum extent.
In order to implement the above embodiments, the present disclosure also proposes a non-transitory computer-readable storage medium on which a computer program is stored, which when executed by a processor, implements the image acquisition method as described in the foregoing embodiments.
In order to implement the above embodiments, the present disclosure also proposes a computer program product having a computer program stored thereon, which when executed by a processor implements the image acquisition method according to the foregoing embodiments.
Fig. 14 is a block diagram of a controller according to an embodiment of the present disclosure. The controller shown in fig. 14 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 14, the controller 1400 includes a processor 1401, which can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM) 1402 or a program loaded from a Memory 1406 into a Random Access Memory (RAM) 1403. In the RAM1403, various programs and data necessary for the operation of the controller 1400 are also stored. The processor 1401, the ROM 1402, and the RAM1403 are connected to each other by a bus 1404. An Input/Output (I/O) interface 1405 is also connected to bus 1404.
The following components are connected to the I/O interface 1405: a memory 1406 including a hard disk and the like; and a communication portion 1407 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like, the communication portion 1407 performing communication processing via a Network such as the internet; drivers 1408 are also connected to I/O interface 1405 as needed.
In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program, carried on a computer readable medium, containing program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication portion 1407. The computer program, when executed by the processor 1401, performs the functions defined in the method of the present disclosure.
In an exemplary embodiment, a storage medium comprising instructions, such as memory 1406 comprising instructions, executable by processor 1401 of controller 1400 to perform the above-described method is also provided. Alternatively, the storage medium may be a non-transitory computer readable storage medium, which may be, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present disclosure in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present disclosure may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.
Claims (10)
1. An image acquisition method, comprising:
acquiring an initial position of a sample to be collected at each set angle in at least one set angle and a target position at each set angle;
judging whether any initial position is matched with a corresponding target position or not according to any initial position in the initial positions under the set angles;
when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted;
and controlling the image collector to collect the image of the sample to be collected after the position is adjusted.
2. The method according to claim 1, wherein the determining whether any one of the initial positions at the respective set angles matches the corresponding target position comprises:
determining a reference line of a target position corresponding to any initial position in the initial positions under the set angles; wherein the reference lines comprise a horizontal reference line and a vertical reference line that intersect vertically;
determining at least one central axis of the sample to be collected according to any initial position;
and determining whether any initial position is matched with the corresponding target position according to the at least one central axis, the horizontal reference line and the vertical reference line.
3. The method of claim 2, wherein the at least one central axis comprises a vertical central axis and at least one horizontal central axis, and the determining whether any of the initial positions matches the corresponding target position according to the at least one central axis, the horizontal reference line, and the vertical reference line comprises:
judging whether the vertical central axis is matched with the vertical reference line;
determining a reference coordinate range corresponding to the horizontal reference line;
judging whether the coordinate range corresponding to each horizontal axis in the at least one horizontal central axis is in the reference coordinate range;
and when the vertical central axis is matched with the vertical reference line and the coordinate range corresponding to each horizontal central axis is in the reference coordinate range, determining that any initial position is matched with the corresponding target position.
4. The method according to any one of claims 1 to 3, wherein when any initial position does not match with a corresponding target position, controlling a position adjusting device to perform position adjustment on any initial position according to the corresponding target position in response to an adjusting instruction so as to obtain a position-adjusted sample to be collected comprises:
determining a central coordinate point corresponding to any initial position;
acquiring the coordinate difference between the central coordinate point and a central coordinate point corresponding to the corresponding target position;
and controlling the position adjusting device to adjust the position of any initial position according to the coordinate difference so as to obtain the sample to be collected after the position is adjusted.
5. The method of claim 4, wherein determining the center coordinate point corresponding to any of the initial positions comprises:
determining at least one reference positioning line of the sample to be collected according to any initial position, wherein the at least one reference positioning line comprises a reference horizontal central axis and a reference vertical central axis of the sample to be collected at any initial position;
and determining a central coordinate point of the sample to be collected at any initial position according to the reference horizontal central axis and the reference vertical central axis.
6. A controller, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-5.
7. An image acquisition system, comprising: the device comprises a controller, a position adjusting device and an image collector;
the controller is used for acquiring an initial position of a sample to be collected at each set angle in at least one set angle and a target position at each set angle; judging whether any initial position is matched with a corresponding target position or not according to any initial position in the initial positions under the set angles; when any initial position is not matched with the corresponding target position, responding to an adjusting instruction, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted; controlling an image collector to collect images of the samples to be collected after the positions are adjusted;
the position adjusting device is connected with the controller and used for adjusting the position of any initial position under the control of the controller;
and the image collector is connected with the controller and is used for collecting the image of the sample to be collected after the position adjustment under the control of the controller when any initial position is matched with the corresponding target position.
8. The image acquisition system according to claim 7, wherein the position adjustment device comprises a fixed base and a position adjustment structure, and the position adjustment structure is provided with a vertical adjustment controller, a three-stage axial telescopic pipe, a horizontal adjustment controller, a horizontal adjustment table and a sample fixed table from bottom to top;
the fixed base is connected with the bottom of the position adjusting structure and used for fixing the position adjusting structure;
the vertical adjustment controller is connected with the three-stage axial telescopic pipe and is used for controlling the telescopic length of the three-stage axial telescopic pipe by utilizing a circuit and adjusting the position of the sample to be collected in the vertical direction;
the horizontal adjustment controller is connected with the horizontal adjustment table and used for controlling the horizontal adjustment table and adjusting the position of the sample to be collected in the horizontal direction;
and the sample fixing table is used for fixing the sample to be collected.
9. The image acquisition system of claim 8, wherein the position adjustment device further comprises: a power supply module;
the power supply module is connected with the vertical adjustment controller and used for supplying electric energy to the vertical adjustment controller;
and the power supply module is connected with the horizontal adjustment controller and is used for providing electric energy for the horizontal adjustment controller.
10. An image acquisition apparatus, comprising:
the acquisition module is used for acquiring an initial position of a sample to be acquired at each set angle in at least one set angle and a target position at each set angle;
the judging module is used for judging whether any initial position is matched with the corresponding target position or not according to any initial position in the initial positions under the set angles;
the processing module is used for responding to an adjusting instruction when any initial position is not matched with a corresponding target position, and controlling a position adjusting device to adjust the position of any initial position according to the corresponding target position so as to obtain a sample to be collected after the position is adjusted;
and the acquisition module is used for controlling the image acquisition device to acquire the image of the sample to be acquired after the position adjustment.
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