Mineral slice panoramic image acquisition device, system and method under microscope and scale frame

Abstract

The invention discloses a device, a system and a method for collecting a panoramic image of a mineral slice under a microscope and a scale frame. The device comprises the microscope and the scale frame arranged on an objective table of the microscope, wherein the scale frame comprises a first support frame group and a second support frame group, the first support frame group is arranged in parallel, the second support frame group is arranged in parallel, the first support frame group is provided with a first chute for accommodating a glass slide, the glass slide can slide on the first chute, and the first support frame group is marked with scales of a glass slide moving scale; a second sliding groove is formed in the second supporting frame set, the first supporting frame set can slide on the second sliding groove, and scales for moving the ruler of the first supporting frame set are marked on the second supporting frame set. The scale frame not only can realize stable, accurate and quantitative movement of the glass slide, but also can manually control the quality of a single picture, finally realizes rapid intelligent splicing, fully displays a panoramic image of a mineral slice for researchers, and also has the advantages of low cost, simple operation, convenient carrying and the like.

Description

Technical Field

[0001] This invention relates to the field of petroleum geology, specifically to a device, system, method, and scale frame for acquiring panoramic images of mineral thin sections under a microscope. Background Technology

[0002] When observing microscopic rock features under a microscope, the field of view diameter is inversely proportional to the magnification. Using a low-power microscope to acquire images of rock features results in a relatively large field of view but a low magnification, leading to unclear microscopic features in the acquired images. Using a high-power microscope results in a relatively small field of view but a higher magnification, which is beneficial for acquiring magnified images of localized microscopic features. However, such images cannot fully reflect the overall characteristics of the mineral thin section. Mineral thin section identification personnel generally use high-power microscopes to acquire rock feature images to better illustrate a specific phenomenon. However, researchers often use only the specific microscopic features acquired through magnification, neglecting universal and holistic features, leading to biased, subjective, or even erroneous understandings. Therefore, acquiring panoramic images of mineral thin sections using high-power microscopes is crucial. Summary of the Invention

[0003] In order to achieve stable, precise, and quantitative movement on the stage, while allowing manual control over the quality of individual images and rapid intelligent stitching, so as to fully demonstrate the panoramic image features of mineral thin sections for researchers, this invention provides a panoramic image acquisition device, system, method, and scale frame for mineral thin sections under a microscope.

[0004] In a first aspect, embodiments of the present invention provide a panoramic image acquisition device for mineral thin sections under a microscope, which may include: a microscope and a scale frame disposed on the stage of the microscope;

[0005] The scale holder may include a first support frame group and a second support frame group arranged in parallel. The first support frame group has a first sliding groove for accommodating a glass slide, on which the glass slide can slide. The first support frame group is marked with a scale indicating the movement of the glass slide. The second support frame group has a second sliding groove, on which the first support frame group can slide. The second support frame group is marked with a scale indicating the movement of the first support frame group.

[0006] In one embodiment, the first support frame in the first support frame group is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale, and the second support frame in the first support frame group is marked with a 10x objective lens movement scale and a 20x objective lens movement scale.

[0007] The third support frame in the second support frame group is marked with the scale for 2.5x objective lens movement and the scale for 5x objective lens movement, and the fourth support frame in the second support frame group is marked with the scale for 10x objective lens movement and the scale for 20x objective lens movement.

[0008] In another embodiment, the starting point of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the first support is the edge of the slide away from the third support;

[0009] The starting points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the second support are the edges of the slide away from the third support.

[0010] The starting and ending points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the third support frame are equidistant from the first support frame and the second support frame, respectively.

[0011] The starting and ending points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the fourth support frame are equidistant from the first support frame and the second support frame, respectively.

[0012] In another embodiment, the first groove and / or the second groove is an inner groove.

[0013] In another embodiment, the scale markings on the slide movement scale of the first support frame group and the scale markings on the first support frame group movement scale of the second support frame group are determined based on the field of view diameter of the microscope, the acquisition coefficient of the microscope, and the aspect ratio of the panoramic image display.

[0014] In a second aspect, embodiments of the present invention provide a panoramic image acquisition system for mineral thin sections under a microscope, comprising: an automated moving device and a panoramic image acquisition device for mineral thin sections under a microscope as described in the first aspect.

[0015] The automated moving device includes a controller and a drive motor, wherein the controller stores a moving control program, and the output end of the drive motor is used to connect to a glass slide or a first support frame assembly; the controller controls the drive motor to move the glass slide or the first support frame assembly to a preset position according to the preset moving control program.

[0016] Thirdly, embodiments of the present invention provide a method for acquiring panoramic images of mineral thin sections under a microscope, wherein image acquisition is performed according to the panoramic image acquisition device for mineral thin sections under a microscope described in the first aspect, including:

[0017] Move the glass slide containing the mineral flakes to any apex position of the scale frame in the first support frame group and the second support frame group, adjust the fine adjustment knob of the microscope to focus the image, and then use the image acquisition device in the microscope to acquire the first image, and save and record it.

[0018] Adjust the slide or the first support frame to the adjacent scale in the horizontal or vertical direction, focus, and then use the image acquisition device to perform a second image acquisition, which is then saved and recorded.

[0019] After acquiring images sequentially in the horizontal or vertical direction, stitching software is used to stitch the multiple images together to obtain a panoramic image of the mineral thin section.

[0020] Fourthly, embodiments of the present invention provide a scale holder for acquiring panoramic images of mineral thin sections under a microscope. The scale holder is used to be mounted on the stage of the microscope and may include: a first support frame group and a second support frame group arranged in parallel. The first support frame group has a first sliding groove for accommodating a glass slide, and the glass slide can slide on the first sliding groove. The first support frame group is marked with a scale for moving the glass slide. The second support frame group has a second sliding groove, and the first support frame group can slide on the second sliding groove. The second support frame group is marked with a scale for moving the first support frame group.

[0021] In another embodiment, the first support frame in the first support frame group is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale, and the second support frame in the first support frame group is marked with a 10x objective lens movement scale and a 20x objective lens movement scale.

[0022] The third support frame of the second support frame group is marked with the scale for 2.5x objective lens movement and the scale for 5x objective lens movement. The fourth support frame of the second support frame group is marked with the scale for 10x objective lens movement and the scale for 20x objective lens movement.

[0023] In another embodiment, the starting point of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the first support is the edge of the slide away from the third support;

[0024] The starting points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the second support are the edges of the slide away from the third support.

[0025] The starting and ending points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the third support frame are equidistant from the first support frame and the second support frame, respectively.

[0026] The starting and ending points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the fourth support frame are equidistant from the first support frame and the second support frame, respectively.

[0027] The beneficial effects of the above-mentioned technical solutions provided in the embodiments of the present invention include at least the following:

[0028] This invention provides a device, system, method, and scale holder for acquiring panoramic images of mineral thin sections under a microscope. The scale holder can achieve stable, precise, and quantitative movement of the slide, and also allows for manual control of the quality of individual images, ultimately achieving rapid and intelligent stitching to fully display panoramic images of mineral thin sections for researchers.

[0029] Furthermore, the aforementioned panoramic image acquisition device for mineral thin sections under a microscope can quickly and with high quality acquire panoramic images of mineral thin sections, providing intuitive, comprehensive, and complete information for observing the microscopic characteristics of minerals. The entire process is simple to operate, and the relatively short time consumption for equidistant movement is short. The scale holder can be fixed to the stage during use without complicated disassembly. The scale holder allows for equidistant movement along the X and Y axes and manual focusing along the Z axis, applicable to various magnifications. This acquisition device also has the advantages of low cost, simple operation, and easy portability.

[0030] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0031] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 This is a schematic diagram of the scale holder provided in an embodiment of the present invention;

[0034] Figure 2 This is a diagram of the slide groove structure in the scale holder provided in an embodiment of the present invention;

[0035] Figure 3 This is one example of a high-magnification panoramic image provided in an embodiment of the present invention;

[0036] Figure 4 This is a second example of a high-magnification panoramic image provided in an embodiment of the present invention;

[0037] Among them, 1-scale holder; 2-glass slide;

[0038] 11-First support frame assembly; 12-Second support frame assembly;

[0039] 111-First slide rail; 112-First support frame; 113-Second support frame; 121-Second slide rail; 122-Third support frame; 123-Fourth support frame. Detailed Implementation

[0040] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] The inventors discovered in their practical work that acquiring panoramic images of mineral thin sections using a high-powered microscope is relatively difficult. The traditional method is to obtain a panoramic image by stitching together several locally magnified microscopic photographs of rocks under high power. On the one hand, obtaining a single rock feature image requires rotating the stage or manually adjusting the position of the rock thin section in the field of view. This process involves many uncertainties due to human factors, making subsequent image stitching extremely difficult. On the other hand, it requires a lot of time and effort, resulting in low efficiency.

[0044] Previous researchers have improved the flexibility, stability, and precision of slide movement by modifying the microscope stage. For example, patent CN114114664A discloses a novel, easily adjustable microscope stage that allows arbitrary movement in the X, Y, and Z directions via an adjustable threaded rod; patent CN107272179A discloses a new microscope stage that stabilizes the slide on the stage, reducing instability when manually adjusting its position; and patent CN113126275A discloses a detachable external microscope stage that allows for precise adjustment of the slide's position. While these patents have increased the flexibility, stability, and precision of slide movement, they still cannot achieve continuous, quantitative slide displacement. Therefore, it remains difficult to quickly stitch together a large number of magnified images into a panoramic photograph. Some researchers have also acquired panoramic images by taking photos in motion mode during the movement of the stage. For example, patent CN114463231A discloses a method, device, medium, and equipment for intelligent stitching of microscope images. This method uses an electronic rolling shutter camera to intelligently identify and automatically stitch images during the movement of the stage to scan mineral thin sections. The inventors found that this method has relatively stringent requirements for thin section preparation, requiring standard shape, uniform thickness, and high-quality thin sections to ensure consistent image clarity and high intelligent recognition. However, current thin sections are generally hand-ground by skilled workers, resulting in inconsistent quality. In addition, it also depends on the stability and regularity of the stage movement. For microscopes and mineral thin sections commonly used in industrial production, although this method can quickly achieve panoramic image acquisition, the panoramic image quality may not meet the needs of researchers. In view of the above problems, this invention is proposed to provide a device, system, method, and scale holder for panoramic image acquisition of mineral thin sections under a microscope that overcomes or at least partially solves the above problems.

[0045] This invention provides a device for acquiring panoramic images of mineral thin sections under a microscope, referring to... Figure 1 and Figure 2 As shown, the acquisition device may include: a microscope (not shown) and a scale holder 1 disposed on the stage (not shown) of the microscope; wherein, the scale holder 1 may include a first support frame group 11 and a second support frame group 12 disposed in parallel, wherein the first support frame group 11 has a first sliding groove 111 for accommodating a glass slide 2, the glass slide 2 can slide on the first sliding groove 111, and the first support frame group 11 is marked with a scale for moving the glass slide 2; the second support frame group 12 has a second sliding groove 121, the first support frame group 11 can slide on the second sliding groove 121, and the second support frame group 12 is marked with a scale for moving the first support frame group 11.

[0046] In this embodiment of the invention, the first and second support frame groups are support frame groups with sliding grooves, allowing the slide to move within the range of the scale frame. The microscope in this embodiment can be a commonly used mid-to-low-end microscope, which can be paired with a photographic system. After regularly acquiring individual photographs, they can be stitched together using common image processing software. The scale frame allows for stable, precise, and quantitative movement of the slide, while also enabling manual control of the quality of individual photographs, ultimately achieving rapid and intelligent stitching and providing researchers with a comprehensive panoramic image of mineral thin sections.

[0047] The panoramic image acquisition device for mineral thin sections under a microscope provided in this embodiment of the invention can quickly and with high quality acquire panoramic images of mineral thin sections, providing intuitive, comprehensive, and complete information for observing the microscopic characteristics of minerals. The entire process is simple to operate, with relatively short time consumption for equidistant movement. The scale holder can be fixed on the stage during use, without the need for complex disassembly. The scale holder enables equidistant movement along the X and Y axes and manual focusing along the Z axis, applicable to various magnifications. Furthermore, this acquisition device also has the advantages of low cost, simple operation, and easy portability.

[0048] In an optional embodiment, refer to Figure 1 and Figure 2 As shown, the first support frame 112 in the first support frame group 11 is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale; the second support frame 113 in the first support frame group 11 is marked with a 10x objective lens movement scale and a 20x objective lens movement scale; the third support frame 122 in the second support frame group 12 is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale; and the fourth support frame 123 in the second support frame group 12 is marked with a 10x objective lens movement scale and a 20x objective lens movement scale.

[0049] In this embodiment, the first support frame assembly is... Figure 1 The two support frames on the left and right, the second support frame group is Figure 1 The microscope consists of two upper and lower support frames. In practice, these upper and lower support frames are fixed to the microscope's slide frame, while the left and right support frames can move along the grooves of the upper and lower support frames. The thin slide (glass slide) can also move along the grooves of the left and right support frames. (See reference...) Figure 1 As shown, the red markings on the left support frame (first support frame) and the upper support frame (third support frame) correspond to the movement standard of the 2.5x objective lens, and the blue markings correspond to the movement standard of the 5x objective lens; the red markings on the right support frame (second support frame) and the lower support frame (fourth support frame) correspond to the movement standard of the 10x objective lens, and the blue markings correspond to the movement standard of the 20x objective lens.

[0050] In specific implementation, refer to Figure 1 and Figure 2 As shown, the scale markings on the slide movement scale of the first support frame group 11 and the scale markings on the first support frame group 12 are determined based on the microscope's field of view diameter, the microscope's acquisition coefficient, and the aspect ratio of the panoramic image display.

[0051] In this embodiment, the determination of the scale values ​​on the first support frame group and the second support frame group is calculated using the following formulas (1) to (3):

[0052] Field of view diameter = eyepiece field of view number / objective lens magnification (1)

[0053] Acquisition size (height) = Field of view diameter * Acquisition coefficient (2)

[0054] Data acquisition size (width) = Data acquisition size (height) * aspect ratio (3)

[0055] Different microscope models have different eyepiece field of view numbers, usually marked on the side of the eyepiece. For example, the Zeiss 44036-9000 microscope has PI 10× / 23, indicating a field of view number of 23. A higher field of view number results in a larger field of view diameter; conversely, a higher objective magnification results in a smaller field of view diameter. Different image acquisition software (photography systems or image acquisition devices) have different acquisition coefficients, generally constants (configurable), or they can be calculated from actual captured images. For example, the acquisition coefficient of the aforementioned microscope model is 0.0435. Different image display ratios have different aspect ratios, generally constants, such as a 4:3 image display with an aspect ratio of 1.33.

[0056] Table 1 Image acquisition parameters for Zeiss 44036-9000 microscope

[0057]

[0058]

[0059] Therefore, the calibration is based on the following (taking a 2.5x objective lens as an example): According to DZ / T 0275.2-2015 Technical Specification for Rock and Mineral Identification, Part 2: the slide size is 26*76*1mm, the mineral section is 25*25*0.03mm, and the cover plate is 25*25*0.15mm (some mineral sections do not have cover plates). The panoramic image size is the circular mineral section with a diameter of 25mm. Under a 2.5x objective lens, a clear 4:3 photograph has a horizontal width of 5.32mm and a vertical width of 4mm; therefore, during acquisition, the panoramic image needs to be moved horizontally 5 times and vertically 7 times, requiring 35 shots. Under a 20x objective lens, it needs to be moved horizontally 38 times and vertically 50 times, requiring 1900 shots.

[0060] In another alternative embodiment, refer to Figure 1 As shown, the starting points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the first support frame 112 are the edges of the slide 2 away from the third support frame 122; the starting points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the second support frame 113 are the edges of the slide 2 away from the third support frame 122; the starting and ending points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the third support frame 122 are equidistant from the first support frame 112 and the second support frame 113, respectively; the starting and ending points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the fourth support frame 123 are equidistant from the first support frame 112 and the second support frame 113, respectively.

[0061] In this embodiment of the invention, taking the Zeiss 44036-9000 microscope as an example, the upper support frame has 5 red graduations (2.5x objective lens), each 5.32mm; the left support frame has 7 red graduations (2.5x objective lens), each 4mm; the lower support frame has 38 blue graduations (20x objective lens), each 0.665mm; and the right support frame has 50 blue graduations, each 0.5mm. In this embodiment, to save space and ensure the graduation frame is appropriately sized, 2 / 3 of the slide length is reserved on each side of the graduated sections on the upper and lower supports, and one full slide width is reserved on each side of the graduated sections on the left and right supports. Therefore, a length of 140mm and a width of 80mm are sufficient for the graduation frame. Since the diameter of a typical microscope stage is 150-200mm, the graduation frame, as an external auxiliary device, does not affect the normal rotation of the microscope.

[0062] In another alternative embodiment, refer to Figure 1 and Figure 2 As shown, the first slide groove 111 and / or the second slide groove 121 are recessed grooves. In this embodiment, the first slide groove 111 can be a slide rail, and preferably the first slide groove 111 and the second slide groove 121 are recessed grooves, which facilitates the installation of the first support frame assembly 11 on the second support frame assembly 12 and facilitates the embedding of the glass slide 2 into the first slide groove 111.

[0063] While the panoramic image acquisition device for mineral thin sections under a microscope described in this embodiment of the invention solves the problem of maintaining stability when manually moving the slide, thus facilitating subsequent image acquisition and processing, manual movement remains inefficient. For example, under a 20x objective lens, up to 1900 slide movements and image acquisitions are required, which is time-consuming. The above data assumes the acquisition of a panoramic image of a 25mm diameter mineral section (of course, under a 20x objective lens, one-quarter of the area is sufficient to represent the entire mineral thin section, so only 35 movements and acquisitions are needed to illustrate the point). To address this technical problem, the inventors have further improved the device by adding an automated movement mechanism, using a controller to achieve rapid and precise movement.

[0064] Based on the same inventive concept, this embodiment of the invention also provides a panoramic image acquisition system for mineral thin sections under a microscope. The system may include: an automated moving device (not shown in the figure) and the above-mentioned panoramic image acquisition device for mineral thin sections under a microscope; wherein, the automated moving device may include: a controller and a drive motor, wherein the controller stores a moving control program, and the output end of the drive motor is used to connect to a glass slide or a first support frame group; the controller controls the drive motor to move the glass slide or the first support frame group to a preset position according to the preset moving control program.

[0065] It should be noted that the controller used in this embodiment of the invention can be a programmable logic controller (PLC), and the drive motor can be a stepper motor. Only simple logic control editing is needed to move the stepper motor by a preset step size (matching the scale) to achieve precise movement of the glass slide or the first support frame assembly. Furthermore, the use of a PLC controller and stepper motor in this embodiment of the invention has a low-cost advantage compared to existing automated devices, and can be combined with manual adjustments to achieve high-magnification panoramic image acquisition.

[0066] Based on the same inventive concept, this invention also provides a method for acquiring panoramic images of mineral thin sections under a microscope. This method can acquire images using the aforementioned panoramic image acquisition device for mineral thin sections under a microscope, and specifically includes the following steps:

[0067] Step (1): Move the glass slide containing the mineral slices to any apex position of the scale frame in the first support frame group and the second support frame group, adjust the fine adjustment knob of the microscope to focus the image, and then use the image acquisition device in the microscope to acquire the first image, and save and record it.

[0068] In this embodiment, when using the aforementioned panoramic image acquisition device for mineral thin sections under a microscope, the final acquired image is rectangular. Therefore, when moving the slide or the first support frame based on the scale on the scale holder, the movement is sequential. The initial position is one end point (vertical corner) of the rectangle, such as... Figure 1 As shown, after moving the slide to a apex position (position 1), manually adjust the mineral section to a position where it is clear to be photographed using the coarse and fine adjustment knobs (adjusted in the direction of the stage) on the microscope. Then take the first photograph using the image acquisition device in the microscope, save and record it.

[0069] Step (2): Adjust the slide or the first support frame to the adjacent scale in the horizontal or vertical direction, focus, and then use the image acquisition device to acquire the image a second time, and save and record it.

[0070] In this step, horizontal or vertical image acquisition can be performed first. For example, vertical image acquisition can be performed first as follows: With the horizontal position unchanged, manually adjust the mineral section to the second vertical position according to the scale on the microscope. Then, manually adjust it again using the microscope's built-in fine-tuning knob to a position where the image is clear for photographing. Take a second photograph, save and record it. Repeat the above steps to perform multiple vertical acquisitions at the first horizontal position. Then, perform multiple vertical acquisitions at the second horizontal position, specifically as follows: Manually adjust the mineral section to the first vertical and second horizontal positions according to the scale on the microscope. Then, manually adjust it again using the microscope's built-in fine-tuning knob to a position where the image is clear for photographing. Take a photograph, save and record it. Repeat the above steps until the second horizontal position is acquired at the very bottom of the vertical position. Repeat the above steps until the final image acquisition is completed. In this embodiment, the slide movement rule is from top to bottom (based on the carrier slide boundary), from left to right (based on the cover slide boundary or the tangent of the mineral section), then from right to left, and so on, moving one unit at a time. Adjust the carrier plate according to the corresponding scale of the support frame based on the actual magnification. For example, for panoramic image acquisition with a 2.5x objective lens, move the carrier plate by referring to the red scale on the upper and right support frames.

[0071] After acquiring images sequentially in the horizontal or vertical direction in step (3), stitching software is used to stitch multiple images together to obtain a panoramic image of the mineral thin section. In this step, the n ordered photos are stitched together using intelligent image stitching software to complete the image acquisition of a high-magnification panoramic image of the mineral thin section.

[0072] Reference Figure 3 The high-magnification panoramic image of a mineral thin section shown (panoramic photograph of a fracture-porosity reservoir) objectively and clearly displays the overall characteristics of fracture development and the location of matrix pores, avoiding the selective use of cast photographs from a single lens to reflect reservoir characteristics. (See also...) Figure 4 The high-magnification panoramic image of another mineral section (panoramic photograph of a fracture-porosity reservoir) shows that matrix pores of different sizes are distributed sporadically in a patchy pattern, and a large number of granular fractures are also visible, with an overall porosity of about 6%.

[0073] Based on the same inventive concept, this embodiment of the invention also provides a scale holder for acquiring panoramic images of mineral thin sections under a microscope. The scale holder 1 is used to be mounted on the stage of the microscope, as shown in the reference. Figure 1 and Figure 2 As shown, the scale holder 1 may include: a first support frame group 11 arranged in parallel and a second support frame group 12 arranged in parallel. The first support frame group 11 has a first sliding groove 111 for accommodating a glass slide, and the glass slide 2 can slide on the first sliding groove 111. The first support frame group 11 is marked with the scale of the glass slide movement scale. The second support frame group 12 has a second sliding groove 121, and the first support frame group 11 can slide on the second sliding groove 121. The second support frame group 12 is marked with the scale of the first support frame group 11 movement scale.

[0074] In another alternative embodiment, refer to Figure 1 and Figure 2 As shown, the first support frame 112 in the first support frame group 11 is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale; the second support frame 113 in the first support frame group 11 is marked with a 10x objective lens movement scale and a 20x objective lens movement scale; the third support frame 122 in the second support frame group 12 is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale; and the fourth support frame 123 in the second support frame group 12 is marked with a 10x objective lens movement scale and a 20x objective lens movement scale.

[0075] In another alternative embodiment, refer to Figure 1 and Figure 2 As shown, the starting points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the first support frame 11 are the edges of the slide 2 away from the third support frame 122; the starting points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the second support frame 12 are the edges of the slide 2 away from the third support frame 122; the starting and ending points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the third support frame 122 are equidistant from the first support frame 112 and the second support frame 113, respectively; the starting and ending points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the fourth support frame 123 are equidistant from the first support frame 112 and the second support frame 123, respectively.

[0076] The detailed description and beneficial effects of the above-mentioned panoramic image acquisition system, method and scale frame for panoramic image acquisition of mineral thin sections under a microscope provided in the embodiments of the present invention can be found in the relevant introduction of the above-mentioned panoramic image acquisition device for mineral thin sections under a microscope. The embodiments of the present invention will not be repeated here.

[0077] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. This disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of the invention fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.

Claims

1. A panoramic image acquisition device for mineral thin sections under a microscope, characterized in that, include: The microscope and the scale holder set on the stage of the microscope; The scale holder includes a first support frame group and a second support frame group arranged in parallel. The first support frame group has a first sliding groove for accommodating a glass slide, on which the glass slide can slide. The first support frame group is marked with a scale indicating the movement of the glass slide. The second support frame group has a second sliding groove, on which the first support frame group can slide. The second support frame group is marked with a scale indicating the movement of the first support frame group.

2. The apparatus according to claim 1, characterized in that, The first support frame in the first support frame group is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale, and the second support frame in the first support frame group is marked with a 10x objective lens movement scale and a 20x objective lens movement scale. The third support frame in the second support frame group is marked with the scale for 2.5x objective lens movement and the scale for 5x objective lens movement, and the fourth support frame in the second support frame group is marked with the scale for 10x objective lens movement and the scale for 20x objective lens movement.

3. The apparatus according to claim 2, characterized in that, The starting points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the first support frame are the edges of the slide away from the third support frame; The starting points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the second support are the edges of the slide away from the third support. The starting and ending points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the third support frame are equidistant from the first support frame and the second support frame, respectively. The starting and ending points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the fourth support frame are equidistant from the first support frame and the second support frame, respectively.

4. The apparatus according to any one of claims 1 to 3, characterized in that, The first groove and / or the second groove are internal grooves.

5. The apparatus according to any one of claims 1 to 3, characterized in that, The scale markings on the slide movement scale of the first support frame group and the scale markings on the first support frame group movement scale of the second support frame group are determined based on the field of view diameter of the microscope, the acquisition coefficient of the microscope, and the aspect ratio of the panoramic image display.

6. A panoramic image acquisition system for mineral thin sections under a microscope, characterized in that, include: Automated mobile device and panoramic image acquisition device for mineral thin sections under a microscope as described in any one of claims 1 to 5; The automated moving device includes a controller and a drive motor, wherein the controller stores a moving control program, and the output end of the drive motor is used to connect to a glass slide or a first support frame assembly; the controller controls the drive motor to move the glass slide or the first support frame assembly to a preset position according to the preset moving control program.

7. A method for acquiring panoramic images of mineral thin sections under a microscope, characterized in that, The image acquisition device for panoramic mineral thin section imaging under a microscope according to any one of claims 1 to 5 includes: Move the glass slide containing the mineral flakes to any apex position of the scale frame in the first support frame group and the second support frame group, adjust the fine adjustment knob of the microscope to focus the image, and then use the image acquisition device in the microscope to acquire the first image, and save and record it. Adjust the slide or the first support frame to the adjacent scale in the horizontal or vertical direction, focus, and then use the image acquisition device to perform a second image acquisition, which is then saved and recorded. After acquiring images sequentially in the horizontal or vertical direction, stitching software is used to stitch the multiple images together to obtain a panoramic image of the mineral thin section.

8. A scale holder for acquiring panoramic images of mineral thin sections under a microscope, characterized in that, The scale holder is used to mount on the stage of the microscope and includes: a first support frame group and a second support frame group arranged in parallel. The first support frame group has a first sliding groove for receiving a glass slide, on which the glass slide can slide, and the first support frame group is marked with a scale for moving the glass slide. The second support frame group has a second sliding groove, on which the first support frame group can slide, and the second support frame group is marked with a scale for moving the first support frame group.

9. The scale holder according to claim 8, characterized in that, The first support frame in the first support frame group is marked with a 2.5x objective lens movement scale and a 5x objective lens movement scale, and the second support frame in the first support frame group is marked with a 10x objective lens movement scale and a 20x objective lens movement scale. The third support frame of the second support frame group is marked with the scale for 2.5x objective lens movement and the scale for 5x objective lens movement. The fourth support frame of the second support frame group is marked with the scale for 10x objective lens movement and the scale for 20x objective lens movement.

10. The scale holder according to claim 9, characterized in that, The starting points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the first support frame are the edges of the slide away from the third support frame; The starting points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the second support are the edges of the slide away from the third support. The starting and ending points of the 2.5x objective lens movement scale and the 5x objective lens movement scale marked on the third support frame are equidistant from the first support frame and the second support frame, respectively. The starting and ending points of the 10x objective lens movement scale and the 20x objective lens movement scale marked on the fourth support frame are equidistant from the first support frame and the second support frame, respectively.

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