A light supplementing device for cordyceps sinensis image shooting

Abstract

The application discloses a light supplementing device for Cordyceps sinensis image shooting, and belongs to the technical field of Cordyceps sinensis detection. The device comprises a top outer ring lamp, a top inner ring lamp, a right side lamp, a left side lamp, a camera and a shooting bin. The top outer ring lamp and the top inner ring lamp are both annular array lamp groups, coaxially installed at the top of the inside of the shooting bin, and surround the clamping device, and form outer ring and inner ring light supplementing layers respectively. The camera is arranged on the side of the shooting bin, the right side lamp and the left side lamp are symmetrically arranged on the same side of the camera, and the camera is located between the right side lamp and the left side lamp. Each group of lamps is connected with a main control system, and can realize independent switching and brightness adjustment. Through the cooperative matching of the multiple layers of annular light sources and the double side light lamps, the problem of uneven illumination and heavy shadow in the existing shooting is solved, combined with the hanging sample fixing mode, uniform and dead angle free illumination on the surface of Cordyceps sinensis is realized, and the image quality and the accuracy of subsequent AI recognition are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of Cordyceps sinensis detection technology, and in particular to a supplementary lighting device for capturing images of Cordyceps sinensis. Background Technology

[0002] As a precious traditional Chinese medicine, image acquisition is a crucial step in identifying authenticity and assessing quality for Cordyceps sinensis. High-quality images require uniform and undisturbed lighting conditions to clearly reveal the microscopic features of the Cordyceps, such as the stroma, perithecia, and annular rings. However, existing Cordyceps sinensis image acquisition equipment still has many shortcomings in supplementary lighting technology, resulting in image quality that fails to meet the high standards required for subsequent AI intelligent recognition.

[0003] Currently, traditional supplemental lighting solutions mainly employ a single top light source or a single side light source. This simple light source layout has obvious blind spots, easily creating bright reflection areas or heavy shadows on the surface of the cordyceps, especially in the wrinkles and textures of the cordyceps, where uneven lighting easily leads to the loss of detail. Furthermore, existing imaging equipment often lacks multi-dimensional lighting design for three-dimensional samples, particularly the absence of a top-ring array light source, resulting in significant brightness differences between the top edge and the center of the sample. Simultaneously, the light sources typically only switch on and off synchronously, lacking independent brightness adjustment mechanisms, making it impossible to flexibly adjust the light ratio according to different cordyceps shapes, leading to poor imaging results. In addition, existing equipment often uses a bottom-mounted platform to fix the sample, which not only blocks bottom light but also easily causes projection interference. Moreover, the lack of coordinated design between the supplemental lighting equipment and the clamping mechanism often results in a mismatch between the lighting coverage and the actual position of the sample. Therefore, a new type of supplemental lighting equipment that can solve the above problems is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a supplementary lighting device for capturing images of Cordyceps sinensis, aiming to overcome the problems of uneven lighting, severe shadows, and poor flexibility of supplementary lighting in the prior art.

[0005] This invention is achieved using the following technical solution: a supplementary lighting device for capturing images of Cordyceps sinensis, characterized in that it includes an outer top ring light, an inner top ring light, a right side light, a left side light, a camera, and a shooting chamber; the outer top ring light is an outer ring light group in a circular array, installed at the top inside the shooting chamber, surrounding the clamping device; the inner top ring light is an inner ring light group in a circular array, coaxially arranged with the outer top ring light, installed at the top inside the shooting chamber, surrounding the clamping device; the right side light and the left side light are installed inside the shooting chamber and located on the same side of the camera; the camera is located on the side of the shooting chamber, with its lens facing the sample on the clamping device for shooting; the brightness of the outer top ring light, the inner top ring light, the right side light, and the left side light can all be independently controlled.

[0006] Furthermore, the annular diameter of the outer top ring lamp is larger than the annular diameter of the inner top ring lamp, forming a combined structure of an outer ring supplementary light layer and an inner ring supplementary light layer.

[0007] Furthermore, the right and left lights are symmetrically arranged with respect to the camera, and the brightness of the right and left lights can be adjusted independently of each other.

[0008] Furthermore, a clamping device is provided on the top of the shooting chamber. The clamping device includes a clamping base, a drive mechanism, and clamping claws. The clamping base is fixed to the inner side of the top of the shooting chamber, and the drive mechanism is installed on the clamping base to drive the clamping claws to perform opening and closing actions.

[0009] Furthermore, the clamping claws are configured as a pair of symmetrical clamping fingers, which close together to clamp the sample, so that the sample is suspended in the air.

[0010] Furthermore, the camera is located between the right light and the left light, and the camera has automatic focus, automatic exposure and automatic white balance functions, and the camera's exposure parameters are adjusted in conjunction with the brightness of the light source.

[0011] Furthermore, the inner wall of the shooting chamber is treated with a matte finish, and the shooting chamber is equipped with a light-blocking door structure.

[0012] Furthermore, the lamp beads of the outer lamp in the top ring project light obliquely outward, while the lamp beads of the inner lamp in the top ring project light inward or vertically downward, and the lamp beads of the inner lamp in the top ring adopt a diffuse reflection structure.

[0013] Furthermore, it also includes a main control system, which establishes signal connections with the outer top ring light, the inner top ring light, the right side light, the left side light, and the camera, respectively, to coordinate the brightness and switching sequence of each group of light sources and control the camera's shooting trigger.

[0014] The supplementary lighting device for capturing images of Cordyceps sinensis as described in this invention has the following beneficial effects: The double-layer array structure consisting of an outer and inner ring light and a top ring inner light, combined with a diffuse reflection LED design, can cover the clamping device from multiple angles, effectively eliminating top shadows and dark corners at the edges, making the light on the surface of the cordyceps softer and more realistic.

[0015] Shadowless side imaging: By setting the right and left lights on the same side as the camera, symmetrical side lighting is formed, which effectively fills the shadow area in the camera's field of view and solves the problem of uneven lighting when shooting the side of a stereoscopic sample.

[0016] High control flexibility: Each light source group supports independent addressing and brightness adjustment. Users can preset multiple supplementary lighting modes according to different specifications and colors of Cordyceps sinensis samples, and switch them with one click, which greatly improves shooting efficiency and adaptability.

[0017] Enclosed anti-interference environment: The imaging chamber adopts an enclosed structure with an inner wall treated with light-absorbing material, which effectively absorbs stray light and avoids interference from changes in external ambient light on image quality, ensuring the standardization of data acquisition.

[0018] Sample fixation without obstruction: The cordyceps is suspended and fixed using a clamping device. There is no placement platform in the imaging chamber, which allows light to illuminate the sample from 360 degrees without blind spots. Combined with the rotation function of the clamping device, complete feature images without blind spots can be obtained. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the side light layout; Figure 3 This is a schematic diagram of the ceiling light layout; In the diagram, 1-top ring outer light, 2-top ring inner light, 3-right side light, 4-left side light, 5-camera, 6-shooting chamber, 7-clamping device. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] Example 1: like Figure 1-3As shown, this embodiment provides a supplementary lighting device for capturing images of Cordyceps sinensis, mainly composed of an outer top ring light 1, an inner top ring light 2, a right side light 3, a left side light 4, a camera 5, a shooting chamber 6, and a clamping device 7. The shooting chamber 6 is a rectangular box structure, forming a closed shooting space inside. It is made of black light-absorbing material, and the inner wall is treated with a matte finish to prevent stray light interference from random reflections. The shooting chamber 6 has a light-shielding door structure for easy insertion and removal of the sample. A clamping device 7 is fixed to the inner top of the shooting chamber 6. The clamping device 7 includes a clamping base, a drive mechanism, and clamping claws. The clamping base is fixed to the inner top of the shooting chamber 6, and the drive mechanism is mounted on the clamping base, driving the clamping claws to perform opening and closing actions. When clamping, the claws close to hold the sample, causing the Cordyceps sinensis to hang in mid-air.

[0024] The top-ring outer light 1 is a ring array of lights installed at the top of the imaging chamber 6, surrounding the clamping device 7. The top-ring outer light 1 consists of multiple LED beads evenly arranged to form a ring structure, with a ring diameter larger than that of the inner top-ring light 2, forming an outer ring supplementary lighting layer. The LED beads of the top-ring outer light 1 project light obliquely outwards, directly illuminating the sample area around the clamping device 7. Its installation height and tilt angle have been optimized through optical calculations to ensure that the light effectively covers the three-dimensional area around the clamping device 7, eliminating top edge shadows. Each LED bead of the top-ring outer light 1 can be independently addressed and controlled, connected to the main control system, and supports independent switching and brightness adjustment functions.

[0025] The inner ring light 2 is an inner ring array of lights, coaxially arranged with the outer ring light 1, and also installed at the top of the shooting chamber 6, surrounding the clamping device 7. The inner ring light 2 consists of multiple LED beads evenly arranged to form a ring structure, with a smaller ring diameter than the outer ring light 1, forming an inner ring supplementary lighting layer. The LED beads of the inner ring light 2 project light inwards or vertically downwards to supplement the illumination intensity of the central area at the top, and its color temperature is consistent with that of the outer ring light 1. The LED beads of the inner ring light 2 adopt a diffuse reflection structure, producing soft and non-glaring light. Its brightness can be adjusted independently of the outer ring light 1, and it is connected to the main control system, supporting independent on / off and brightness adjustment functions.

[0026] The camera 5 is mounted on the side of the shooting chamber 6, with its lens pointing towards the Cordyceps sinensis sample on the clamping device 7 to capture images. The camera 5 uses a high-definition industrial camera module, featuring autofocus, auto exposure, and auto white balance. Its resolution and color reproduction capabilities meet the requirements for Cordyceps sinensis feature recognition. The camera 5's field of view covers the clamping area of ​​the clamping device 7 and is equipped with a protective lens. The camera 5 is connected to the main control system, receiving trigger signals and transmitting the acquired image data. Its exposure parameters are adjusted in conjunction with the light source brightness.

[0027] The right-side light 3 is installed inside the shooting chamber 6, located to the right of the camera 5; the left-side light 4 is installed inside the shooting chamber 6, located to the left of the camera 5. The right-side light 3 and left-side light 4 are positioned on the same side as the camera 5, with the camera 5 located between them. The right-side light 3 and left-side light 4 form a symmetrical configuration, both employing strip LED lights or dot-matrix LED structures, with the illumination coverage matching the field of view of the camera 5. The light from both the right-side light 3 and left-side light 4 is directed towards the clamping device 7, and their brightness can be adjusted independently of each other. They are each connected to the main control system, supporting independent on / off and brightness adjustment functions.

[0028] The device also includes a main control system and a power supply system. The main control system uses a high-performance microcontroller as its core processor. Through internal circuit boards, it establishes signal connections with the drive mechanisms of the outer top ring light 1, inner top ring light 2, right side light 3, left side light 4, camera 5, and clamping device 7. The main control system has independent brightness adjustment modules for each light group, capable of independently setting and saving the brightness parameters of the outer top ring light 1, inner top ring light 2, right side light 3, and left side light 4. It controls the timing of the clamping device 7's actions, controls the camera 5's shooting trigger and data transmission, and communicates with the host computer. The power supply system includes an external power input interface and an internal power management module. External power is input through the power interface at the rear of the device. After voltage conversion and filtering by the power management module, it supplies power to the aforementioned electrical components. The power management module has overvoltage, overcurrent, and short-circuit protection functions.

[0029] During operation, first open the light-shielding door of the imaging chamber 6 and place the Cordyceps sinensis sample to be photographed within the clamping area of ​​the clamping device 7. The drive mechanism controls the clamping claws to close, clamping one end of the sample and suspending it securely at the top. After closing the light-shielding door, start the supplementary lighting program. The main control system sequentially activates each group of light sources according to the preset supplementary lighting scheme: the inner light 2 of the top ring is lit first, providing vertical downward main illumination; then the outer light 1 of the top ring is lit, supplementing the illumination of the top edge area and eliminating top shadows; the right light 3 and the left light 4 are selectively activated as needed, providing lateral supplementary lighting to the left and right sides of the sample and eliminating side shadows. The brightness of each group of lights is independently adjusted by the main control system according to the characteristics of the sample until a uniform, shadow-free lighting effect is achieved.

[0030] Under stable lighting conditions, camera 5 begins its shooting operation, capturing images of the suspended sample from a side view. The drive mechanism of clamping device 7 rotates the sample, and camera 5 automatically triggers exposure at a preset angle, capturing sample images from multiple angles. The exposure parameters of camera 5 are linked to the brightness of each light source group to ensure consistent lighting across different angles. The main control system includes an exposure parameter and light source brightness linkage adjustment module, which automatically calculates and adjusts the exposure time, gain, and white balance parameters of camera 5 based on the current brightness value of each light group, ensuring accurate exposure under various lighting conditions. After shooting, each light group is turned off sequentially according to the program, and the main control system saves the parameter configuration for this shooting. Subsequently, the drive mechanism controls the clamping claws to open, releasing the sample and completing the acquisition operation. Users can preset multiple lighting schemes for different types and sizes of Cordyceps sinensis samples through the main control system, such as soft light mode, strong light mode, and side light mode, enabling one-click switching.

[0031] Through the above structural design, this supplementary lighting device exhibits significant technical effects. First, the outer lamp 1 and inner lamp 2 of the top ring form an inner and outer ring array structure, surrounding the clamping device 7, providing uniform top and surrounding illumination from multiple angles, effectively eliminating top and edge shadows. Second, the right lamp 3 and left lamp 4 are positioned on the same side as the camera 5, forming symmetrical supplementary lighting, working in conjunction with the camera 5 to eliminate shadows on the sides of the sample, achieving uniform illumination during side shooting. Third, each light source supports independent switching and brightness adjustment, and in conjunction with the linkage adjustment of the camera 5's exposure parameters, the supplementary lighting scheme can be flexibly configured according to different cordyceps characteristics and shooting needs, exhibiting strong adaptability and flexibility. Finally, the enclosed shooting chamber 6 with matte inner walls provides a stable and controllable lighting environment. Combined with the suspended sample fixing method, it avoids interference from the placement platform and the influence of ambient light, allowing light to directly illuminate the entire surface of the sample, greatly improving image quality and the accuracy of subsequent AI recognition.

[0032] The above embodiments describe the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Modifications and variations made by those skilled in the art without departing from the spirit and scope of the invention should be within the protection scope of the appended claims.

Claims

1. A supplementary lighting device for capturing images of Cordyceps sinensis, characterized in that, The system includes an outer top ring light (1), an inner top ring light (2), a right side light (3), a left side light (4), a camera (5), and a shooting chamber (6). The outer top ring light (1) is an outer ring light group in a circular array, installed at the top inside the shooting chamber (6), surrounding the clamping device (7). The inner top ring light (2) is an inner ring light group in a circular array, coaxially arranged with the outer top ring light (1), installed at the top inside the shooting chamber (6), surrounding the clamping device (7). The right side light (3) and the left side light (4) are installed inside the shooting chamber (6) and are symmetrically arranged relative to the camera (5), with the camera (5) located between the right side light (3) and the left side light (4). The camera (5) is located in the shooting chamber (6). From the side, the lens is directed toward the sample on the clamping device (7) to take pictures; the ring diameter of the outer top ring lamp (1) is larger than the ring diameter of the inner top ring lamp (2), forming a combined structure of outer ring supplementary light layer and inner ring supplementary light layer; the brightness of the outer top ring lamp (1), inner top ring lamp (2), right side lamp (3) and left side lamp (4) can be controlled independently; the lamp beads of the outer top ring lamp (1) obliquely project light outward, and the lamp beads of the inner top ring lamp (2) project light inward or vertically downward, and the lamp beads of the inner top ring lamp (2) adopt a diffuse reflection structure; the inner wall of the shooting chamber (6) is treated with matte finish, and the shooting chamber (6) is equipped with a light shielding door structure; the top of the shooting chamber (6) is equipped with a clamping device (7), so that the sample is suspended in the air.

2. The supplementary lighting device for capturing images of Cordyceps sinensis according to claim 1, characterized in that, The clamping device (7) includes a clamping base, a driving mechanism and a clamping claw. The clamping base is fixed to the top inner side of the shooting chamber (6), and the driving mechanism is installed on the clamping base to drive the clamping claw to perform opening and closing actions.

3. The supplementary lighting device for capturing images of Cordyceps sinensis according to claim 2, characterized in that, The gripping claws are configured as a pair of symmetrical gripping fingers, which close together to clamp the sample when gripping.

4. The supplementary lighting device for capturing images of Cordyceps sinensis according to claim 1, characterized in that, The camera (5) is located between the right light (3) and the left light (4). The camera (5) has automatic focus, automatic exposure and automatic white balance functions, and the exposure parameters of the camera (5) are adjusted in conjunction with the brightness of the light source.

5. The supplementary lighting device for capturing images of Cordyceps sinensis according to claim 1, characterized in that, It also includes a main control system, which establishes signal connections with the outer top ring light (1), the inner top ring light (2), the right side light (3), the left side light (4) and the camera (5) respectively, to coordinate the brightness and switching sequence of each group of light sources and control the shooting trigger of the camera (5).

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