Low-light security image lightweight enhancement and face recognition device with preprocessing module

Abstract

The application discloses a low-light security image light-weight enhancement and face recognition device with a preprocessing module, which comprises a support, a mounting seat, a rotating holder, a monitoring device and a telescopic extension piece. The face recognition module and the camera assembly on the monitoring device cooperate with each other to shoot the surrounding environment and people. The collected images are transmitted to the preprocessing module for preprocessing. The preprocessing module can assist the face recognition module and the camera assembly. The images shot by the camera assembly are transmitted to the preprocessing module, which repairs dark details and corrects color deviation, solves the problems of low-light image blur and color deviation, provides high-quality input for subsequent enhancement and recognition, and greatly improves the recognition accuracy.

Description

Technical Field

[0001] This invention relates to the field of security image processing and face recognition technology, specifically to a low-light security image lightweight enhancement and face recognition device with a preprocessing module. Background Technology

[0002] Security video surveillance has been widely used in industrial parks, residential areas, factories, underground parking garages, building corridors, and outdoor perimeters. With the rapid development of deep learning, a large number of deep learning-based algorithms have emerged in the field of low-light enhancement. However, existing low-light image enhancement methods are usually explored in the spatial domain and are mainly divided into two categories. The first type of method learns the distribution and features of normal light images through convolution, while the second type of method is mainly based on Retinex, the theory of the combination of the retina and the cerebral cortex, which decomposes the image to mine brightness information. Areas for improvement are needed when using low-light security image lightweight enhancement and face recognition devices:

[0003] When using lightweight image enhancement and face recognition devices for low-light security, the pre-processing module normally addresses the technical pain point of noise amplification in traditional low-light enhancement. Combined with lightweight enhancement and recognition networks, it achieves real-time processing on the edge, balancing low power consumption, small size, and high recognition accuracy. It is suitable for low-light security scenarios such as nighttime and backlighting, and can be widely used in areas such as park monitoring and smart access control. However, when using these devices, security monitoring is limited to the designated location, allowing only directional rotation for monitoring. It cannot adjust based on the location of people, making it difficult to clearly capture images. This significantly reduces the accuracy of face recognition in subsequent feature extraction and matching. Furthermore, current lighting methods are relatively simple, lacking targeted dimming mechanisms. In low-light and dim-light alternating scenarios, issues such as over-lighting, overexposure, or under-lighting and dim images easily occur, further increasing the difficulty of subsequent processing and making it difficult to achieve a face recognition accuracy of over 80%, thus failing to meet the high security requirements of security scenarios. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention is achieved through the following technical solution: a lightweight security image enhancement and face recognition device with a preprocessing module, the structure of which includes a bracket, a mounting base, a rotating pan-tilt unit, a monitoring device, and a telescopic extension component. The bracket is located at the bottom of the mounting base, and a telescopic extension component is connected through the bracket and the mounting base. The end of the mounting base away from the bracket is fixedly connected to the rotating pan-tilt unit, and a monitoring device connected to the rotating pan-tilt unit is provided on the rotating pan-tilt unit.

[0005] As a further optimization of the invention, the monitoring device includes a preprocessing module, a face recognition module, a main body, a positioning component, and a camera component. The face recognition module, the preprocessing module, and the camera component are installed sequentially from top to bottom inside the main body, and the face recognition module, the preprocessing module, and the camera component are electrically connected through the main body. The main body is installed in the middle position inside the positioning component.

[0006] As a further optimization of the invention, the positioning component includes an outer frame, a limiting pivot, a holding component, a sliding track, a friction pad, and a U-shaped guide. The upper ends of the outer frame are each equipped with a limiting pivot, and the inner sides of the two limiting pivots are connected to the left and right sides of the U-shaped guide. The U-shaped guide is movably connected to the outer frame through the limiting pivot. The left and right sides of the U-shaped guide are each equipped with a sliding track, and the U-shaped guide moves up and down inside the outer frame through the sliding track. The two sides of the U-shaped guide are each equipped with a holding component, and the two holding components are arranged in parallel and symmetrically.

[0007] As a further optimization of the invention, the bracket and the mounting base are connected and installed at the corresponding usage position. The bracket can be extended and adjusted to a certain height by telescopic extension parts, and then adjusted by the cooperation of the rotating pan-tilt head and the monitoring device. The face recognition module and the camera component on the monitoring device cooperate to capture images of the surrounding environment and people. The captured images are then transmitted to the preprocessing module for preprocessing. During the shooting process, the two holding components inside the adjustment component hold the main body. The U-shaped guide can be adjusted up and down and forward and backward inside the outer frame under the action of the moving slide and the limiting pivot, so that the camera component can shoot close-up or far-angle shots.

[0008] As a further optimization of the invention, the rotating gimbal can drive the monitoring device to rotate and adjust by degrees from the top of the mounting base, so that the monitoring device can rotate by degrees to perform monitoring and shooting.

[0009] As a further optimization of the invention, the preprocessing module can assist the face recognition module and the camera component. The image captured by the camera component will be transmitted to the preprocessing module, which will repair dark details and correct color cast, solve the problems of blurry and color cast in low-light images, provide high-quality input for subsequent enhancement and recognition, and greatly improve the recognition accuracy.

[0010] As a further optimization of the invention, the two holding components cooperate with each other to hold the main body inside the U-shaped guide. The U-shaped guide can move up and down with the action of the sliding track, and a friction pad is attached inside the sliding track, which can increase the friction.

[0011] As a further optimization of the invention, the holding assembly includes a chuck, adsorption patches, abutting components, a housing, and spring-loaded fasteners. The chuck has four adsorption patches inside, which are arranged in a cross shape at equal intervals. Spring-loaded fasteners are provided on both the left and right sides of the chuck, and the two spring-loaded fasteners are symmetrically arranged in an "L" shape. The chuck is installed inside the housing and rotates. The housing has a ring of abutting components inside, which are movably connected to the chuck.

[0012] As a further optimization of the invention, the two spring-loaded fasteners cooperate with the chuck to hold the main body on the left and right sides. The chuck will move inside the shell in coordination with the main body, so that the main body can maintain a positive state in real time for shooting under the action of both.

[0013] As a further optimization of the invention, the abutting component is provided with a receiving ball, a resistance pad, and a spring strip. The receiving ball is surrounded by a resistance pad, and a spring strip connects each pair of receiving balls.

[0014] As a further optimization of the invention, the plurality of receiving balls are arranged in a ring at equal intervals inside the outer shell via spring strips, and the outside of the receiving balls is provided with a resistance-increasing pad, which will play a role in increasing resistance and limiting the resistance, so that the receiving balls can limit the chuck to the adjusted position.

[0015] As a further optimization of the invention, the camera assembly includes a slot, a base, a dimming component, a docking component, and a camera. There are two slots, which are symmetrically arranged at the top and bottom ends of the base. The camera is mounted on the top of the base, and the lower end of the camera is provided with a slot that connects to it. The docking component provided inside the slot will fit and connect with the base, and the dimming component is installed at the end of the slot away from the docking component.

[0016] As a further optimization of the invention, the base is fitted inside the main body, and when the camera is monitoring the environment in real time, the dimming component moves and adjusts inside the slot to assist the camera in providing lighting.

[0017] As a further optimization of the invention, the dimming component includes a positioning head, a linkage block, a card plate, a fill light, and an extension. There are two positioning heads, which are symmetrically arranged at the upper and lower ends of the extension. A linkage block is installed in the middle of the extension. The top of the extension is fixedly connected to the card plate through the positioning head, and the card plate is provided with multiple fill lights arranged at equal intervals.

[0018] As a further optimization of the invention, the extension is installed inside the card slot via a positioning head. The extension will extend and retract to adjust the position of the card plate, so that the fill light on the card plate will move accordingly to cooperate with the camera for appropriate fill light processing.

[0019] Beneficial effects

[0020] The present invention provides a lightweight enhancement and face recognition device for low-light security images with a preprocessing module, which has the following beneficial effects:

[0021] 1. This invention uses a face recognition module and a camera component on a monitoring device to capture images of the surrounding environment and people. The captured images are then transmitted to a preprocessing module for preprocessing. The preprocessing module assists the face recognition module and the camera component. The images captured by the camera component are transmitted to the preprocessing module, where dark details are repaired and color casts are corrected, solving the problems of blurry and color casts in low-light images. This provides high-quality input for subsequent enhancement and recognition, significantly improving the recognition accuracy.

[0022] 2. In this invention, during the shooting process, the two holding components inside the positioning component hold the main body in place. The U-shaped guide can be adjusted up and down and forward and backward inside the outer frame under the action of the sliding track and the limiting pivot, so that the camera component can shoot close-up or far-angle shots accordingly. As the U-shaped guide moves up and down under the action of the sliding track, the friction pads inside it can increase the friction and effectively limit the U-shaped guide to the adjusted position. This allows the face recognition module and camera component on the main body to stably shoot and recognize people in the surrounding environment, meeting the needs of real-time security monitoring and real-time alarm.

[0023] 3. This invention utilizes a fill light on the card plate that moves up and down to provide appropriate fill light for the camera. The fill light is adjusted according to the light conditions of the image captured by the camera. In bright light, the card plate moves the fill light inward with the help of the extension component; in dim light, the card plate moves the fill light outward with the help of the extension component. This allows for adjustment based on the captured image, effectively avoiding problems such as over-lighting, overexposure, under-lighting, or dimness. This reduces the difficulty of subsequent processing and enables the face recognition module to quickly and accurately recognize faces, thus adapting to security scenarios with high security requirements. Attached Figure Description

[0024] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of a low-light security image lightweight enhancement and face recognition device with a preprocessing module;

[0026] Figure 2 This is a schematic diagram of the internal structure of an improved monitoring device.

[0027] Figure 3 This is a schematic diagram of the internal structure of an improved positioning component.

[0028] Figure 4 This is a side view diagram of an improved card-holding component.

[0029] Figure 5 This is a schematic diagram of a cross-sectional structure of an improved anti-counterpart component.

[0030] Figure 6 This is a side view diagram of an improved camera component.

[0031] Figure 7 This is a side view of an improved dimming assembly.

[0032] In the diagram: bracket-1, mounting base-2, rotating pan-tilt head-3, monitoring device-4, telescopic extension-5;

[0033] Preprocessing module-41, face recognition module-42, main body-43, positioning component-44, camera component-45;

[0034] Outer frame - 441, limiting hinge - 442, clamping assembly - 443, moving slide - 444, friction pad - 445, U-shaped guide - 446;

[0035] Chuck-4431, Adsorption patch-4432, Anti-blocking component-4433, Housing-4434, Spring-loaded fastener-4435;

[0036] Ball receiving - 4331, resistance pad - 4332, spring pull bar - 4333;

[0037] Card slot-451, base-452, dimming component-453, connector-454, camera-455;

[0038] Positioning head-4531, linkage block-4532, card plate-4533, supplementary light-4534, extension part-4535. Detailed Implementation

[0039] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0040] Example 1

[0041] Please see Figures 1-5 ,

[0042] This invention provides a lightweight image enhancement and face recognition device for low-light security applications with a preprocessing module.

[0043] A lightweight security image enhancement and face recognition device with a preprocessing module includes a bracket 1, a mounting base 2, a rotating pan-tilt unit 3, a monitoring device 4, and a telescopic extension 5. The bracket 1 is located at the bottom of the mounting base 2, and the telescopic extension 5 is internally connected to the bracket 1 and the mounting base 2. The end of the mounting base 2 away from the bracket 1 is fixedly connected to the rotating pan-tilt unit 3, and the monitoring device 4 is connected to the rotating pan-tilt unit 3.

[0044] The monitoring device 4 is equipped with a preprocessing module 41, a face recognition module 42, a main body 43, a positioning component 44, and a camera component 45. The face recognition module 42, the preprocessing module 41, and the camera component 45 are installed inside the main body 43 from top to bottom, and the face recognition module 42, the preprocessing module 41, and the camera component 45 are electrically connected through the main body 43. The main body 43 is installed in the middle position inside the positioning component 44.

[0045] The adjustment component 44 includes an outer frame 441, a limiting pivot 442, a clamping component 443, a sliding track 444, a friction pad 445, and a U-shaped guide 446. The outer frame 441 has limiting pivots 442 installed at both ends of its top, and the inner sides of the two limiting pivots 442 are connected to the left and right sides of the U-shaped guide 446 through the limiting pivots 442. The U-shaped guide 446 is movably connected to the outer frame 441 through the limiting pivots 442. The U-shaped guide 446 has sliding tracks 444 inside its left and right sides, and the U-shaped guide 446 moves up and down inside the outer frame 441 through the sliding tracks 444. The U-shaped guide 446 has clamping components 443 installed on both sides inside its interior, and the two clamping components 443 are arranged in parallel and symmetrical positions.

[0046] The bracket 1 is connected to the mounting base 2 and installed at the corresponding position. The bracket 1 can be extended and adjusted to a certain height by the telescopic extension 5. Then, it can be adjusted by the cooperation of the rotating pan-tilt head 3 and the monitoring device 4. The face recognition module 42 and the camera component 45 on the monitoring device 4 cooperate to take pictures of the surrounding environment and people. The captured images will be transmitted to the preprocessing module 41 for preprocessing. During the shooting process, the two holding components 443 inside the positioning component 44 will hold the main body 43. The U-shaped guide 446 can be adjusted up and down and forward and backward inside the outer frame 441 under the action of the moving slide 444 and the limiting pivot 442, so that the camera component 45 can take close-up or long-range front and back shots.

[0047] The rotating gimbal 3 can drive the monitoring device 4 to rotate 360 ​​degrees from the top of the mounting base 2, so that the monitoring device 4 can rotate 360 ​​degrees to perform monitoring and shooting.

[0048] The preprocessing module 41 can assist the face recognition module 42 and the camera component 45. The image captured by the camera component 45 will be transmitted to the preprocessing module 41. The preprocessing module 41 will repair dark details and correct color cast, solve the problems of blurry and color cast in low light images, provide high-quality input for subsequent enhancement and recognition, and greatly improve the recognition accuracy.

[0049] The two clamping components 443 cooperate with each other to clamp the main body 43 inside the U-shaped guide 446. The U-shaped guide 446 can move up and down with the action of the sliding track 444. The sliding track 444 has a friction pad 445 attached inside, which can increase the friction.

[0050] The holding component 443 includes a chuck 4431, adsorption patches 4432, abutting components 4433, a housing 4434, and spring-loaded fasteners 4435. The chuck 4431 has four adsorption patches 4432 inside, which are arranged in a cross shape at equal intervals. The chuck 4431 has spring-loaded fasteners 4435 on both the left and right sides, and the two spring-loaded fasteners 4435 are symmetrically arranged in an "L" shape. The chuck 4431 is installed inside the housing 4434 and can rotate. The housing 4434 has a ring of abutting components 4433 inside, which are movably connected to the chuck 4431.

[0051] The two spring-loaded fasteners 4435 and the chuck 4431 work together to hold the main body 43 on the left and right sides. The chuck 4431 will move with the main body 43 inside the outer shell 4434, so that the main body 43 can maintain a positive position for shooting in real time under the action of the two.

[0052] The abutment component 4433 is provided with a receiving ball 4331, a resistance pad 4332, and a spring strip 4333. The receiving ball 4331 is provided with a ring of resistance pad 4332 connected to it, and a spring strip 4333 is connected between each pair of receiving balls 4331.

[0053] The plurality of receiving balls 4331 are equidistantly arranged in a ring inside the outer shell 4434 via elastic strips 4333. The receiving balls 4331 are provided with a resistance-increasing pad 4332 on the outside, which will play a role in increasing resistance and limiting, so that the receiving balls 4331 can limit the chuck 4431 to the adjusted position.

[0054] The working principle of the above technical solution is explained below:

[0055] In use, the bracket 1 and the mounting base 2 are connected and installed at the corresponding positions. The bracket 1 can be extended and adjusted to a certain height via the telescopic extension 5. Then, the rotating pan-tilt head 3 and the monitoring device 4 work together for adjustment. The rotating pan-tilt head 3, located on top of the mounting base 2, drives the monitoring device 4 to rotate 360 ​​degrees, allowing it to perform monitoring and image capture. The face recognition module 42 and the camera assembly 45 on the monitoring device 4 work together to capture images of the surrounding environment and people. The captured images are then transmitted to the preprocessing module 41 for preprocessing. The preprocessing module 41 assists the face recognition module 42 and the camera assembly 45. 5. The captured image is then transmitted to the preprocessing module 41, where it repairs dark details, corrects color cast, and resolves issues such as blurriness and color cast in low-light images. This provides high-quality input for subsequent enhancement and recognition, significantly improving recognition accuracy. During the shooting process, the two holding components 443 inside the positioning component 44 hold the subject 43 in place. The U-shaped guide 446, under the action of the sliding track 444 and the limiting pivot 442, can be adjusted up, down, forward, and backward within the outer frame 441, allowing the camera component 45 to capture close-up or distant shots. As the U-shaped guide 446 moves up and down under the action of the sliding track 444, the friction pads 44 inside it... 5 can thus increase friction, effectively confining the U-shaped guide 446 to the adjusted position. While the U-shaped guide 446 moves, its two internal retaining components 443 cooperate to retain it on the left and right sides of the main body 43. The two spring-loaded fasteners 4435 on the retaining components 443 have a spring-loaded function, cooperating with the chuck 4431 to retain it on the left and right sides of the main body 43. The chuck 4431 will move with the main body 43 inside the outer shell 4434. The four adsorption patches 4432 on the chuck 4431 will then adsorb onto the sides of the main body 43, effectively confining it. This allows the chuck 4431 and the spring-loaded fasteners 4435 to stably cooperate within the outer shell 4434 to rotate and adjust the angle of the main body 43. An internal ring of counter-attacking components 4433 is provided. The counter-attacking components 4433 are composed of multiple receiving balls 4331 and multiple elastic strips 4333 connected in series to form a ring structure inside the outer shell 4434. Under the force of gravity, the chuck 4431 will drive the main body 43 to move and adjust in real time, thereby stabilizing the main body 43 to an upright position. This allows the face recognition module 42 and camera component 45 on the main body 43 to stably capture and recognize people in the surrounding environment. The preprocessing module 41 can work with the face recognition module 42 and camera component 45 to perform coarse localization and cropping of the face ROI, and then perform subsequent enhancement and recognition of key facial areas, greatly reducing the amount of computation for redundant backgrounds. Combined with the lightweight model design, it meets the needs of real-time security monitoring and real-time alarm.

[0056] Example 2

[0057] Please see Figures 6-7 ,

[0058] This invention provides a lightweight image enhancement and face recognition device for low-light security applications with a preprocessing module.

[0059] The camera assembly 45 includes a slot 451, a base 452, a dimming assembly 453, a connector 454, and a camera 455. There are two slots 451, which are symmetrically arranged at the upper and lower ends of the base 452. The camera 455 is mounted on the top of the base 452, and the lower end of the camera 455 is provided with a slot 451 to connect with it. The connector 454 provided on the inner side of the slot 451 will fit and connect with the base 452, and the dimming assembly 453 is installed on the end of the slot 451 away from the connector 454.

[0060] The base 452 is fitted inside the main body 43. When the camera 455 is monitoring the environment in real time, the dimming component 453 moves and adjusts inside the slot 451 to assist the camera 455 in providing lighting.

[0061] The dimming assembly 453 includes a positioning head 4531, a linkage block 4532, a card plate 4533, a fill light 4534, and an extension 4535. There are two positioning heads 4531, which are symmetrically arranged at the upper and lower ends of the extension 4535. The linkage block 4532 is installed in the middle of the extension 4535. The top of the extension 4535 is fixedly connected to the card plate 4533 through the positioning head 4531. The card plate 4533 is provided with a plurality of fill lights 4534 arranged at equal intervals.

[0062] The extension 4535 is installed inside the slot 451 via the positioning head 4531. The extension 4535 will extend and retract to adjust the position of the card plate 4533, so that the fill light 4534 on the card plate 4533 will move accordingly to cooperate with the camera 455 to perform appropriate fill light processing.

[0063] The working principle of the above technical solution is explained below:

[0064] In use, the base 452 is fitted inside the main body 43. When the camera 455 monitors the environment in real time, the face recognition module 42 assists in recognizing and capturing faces. During the shooting process, the camera 455 is assisted by the dimming component 453, which is installed inside the card slot 451. The extension 4535 inside the dimming component 453 is installed between the card slot 451 and the card plate 4533 via two positioning heads 4531. The extension 4535 moves and extends under the action of the linkage block 4532 to adjust the position of the card plate 4533, causing the fill light 4534 on the card plate 4533 to move up and down to cooperate with the camera. Appropriate supplementary lighting is applied by the camera 455. The supplementary light 4534 will move and adjust accordingly based on the light conditions of the image captured by the camera 455. In bright light conditions, the card plate 4533 will move the supplementary light 4534 inward under the action of the extension component 4535. In dim light conditions, the card plate 4533 will move the supplementary light 4534 outward under the action of the extension component 4535. This allows for adjustment based on the captured image, effectively avoiding problems such as over-lighting, overexposure, insufficient light, or dimness. This reduces the difficulty of subsequent processing, enabling the face recognition module 42 to quickly and accurately recognize faces, thus adapting to security scenarios with high security requirements.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0066] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lightweight security image enhancement and face recognition device with a preprocessing module, comprising a bracket (1), a mounting base (2), a rotating pan-tilt unit (3), a monitoring device (4), and a telescopic extension (5), wherein the bracket (1) is located at the bottom of the mounting base (2), and the telescopic extension (5) is internally connected to the bracket (1) and the mounting base (2), and the end of the mounting base (2) away from the bracket (1) is fixedly connected to the rotating pan-tilt unit (3), and the monitoring device (4) is connected to the rotating pan-tilt unit (3), characterized in that: The monitoring device (4) is equipped with a preprocessing module (41), a face recognition module (42), a main body (43), a positioning component (44), and a camera component (45). The face recognition module (42), the preprocessing module (41), and the camera component (45) are installed in the main body (43) from top to bottom. The face recognition module (42), the preprocessing module (41), and the camera component (45) are electrically connected through the main body (43). The main body (43) is installed in the middle position inside the positioning component (44). The adjustment component (44) is provided with an outer frame (441), a limiting pivot (442), a clamping component (443), a sliding track (444), a friction pad (445), and a U-shaped guide (446). The outer frame (441) is equipped with limiting pivots (442) at both ends of its top. The inner sides of the two limiting pivots (442) are connected to the left and right sides of the U-shaped guide (446). The U-shaped guide (446) is movably connected to the outer frame (441) through the limiting pivots (442). The U-shaped guide (446) is provided with sliding tracks (444) on both sides of its left and right sides. The U-shaped guide (446) moves up and down inside the outer frame (441) through the sliding tracks (444). The U-shaped guide (446) is equipped with clamping components (443) on both sides of its interior. The two clamping components (443) are set up in parallel and symmetrically. The bracket (1) is connected to the mounting base (2) and installed in the corresponding position. The bracket (1) can be extended and adjusted to a certain height by telescopic extension (5). Then, the rotating gimbal (3) and the monitoring device (4) are used to adjust it. The face recognition module (42) and the camera component (45) on the monitoring device (4) work together to take pictures of the surrounding environment and people. The captured images will be transmitted to the preprocessing module (41) for preprocessing. During the shooting process, the two holding components (443) inside the positioning component (44) will hold the main body (43). The U-shaped guide (446) can be adjusted up and down and forward and backward inside the outer frame (441) under the action of the moving slide (444) and the limiting pivot (442), so that the camera component (45) can take close-up or long-range front and back shots.

2. The low-light security image lightweight enhancement and face recognition device with preprocessing module according to claim 1, characterized in that: The rotating gimbal (3) can drive the monitoring device (4) to rotate 360 ​​degrees from the top of the mounting base (2), so that the monitoring device (4) can rotate 360 ​​degrees to perform monitoring and shooting.

3. The low-light security image lightweight enhancement and face recognition device with preprocessing module according to claim 1, characterized in that: The preprocessing module (41) can assist the face recognition module (42) and the camera component (45). The image captured by the camera component (45) will be transmitted to the preprocessing module (41). The preprocessing module (41) will repair dark details and correct color deviation, solve the problems of blurry and color deviation in low light images, provide high-quality input for subsequent enhancement and recognition, and greatly improve the recognition accuracy.

4. The low-light security image lightweight enhancement and face recognition device with preprocessing module according to claim 1, characterized in that: The two clamping components (443) cooperate with each other to clamp the main body (43) inside the U-shaped guide (446). The U-shaped guide (446) can move up and down under the action of the sliding track (444), and the sliding track (444) has a friction pad (445) attached inside, which can play a role in increasing friction.

5. A lightweight security image enhancement and face recognition device with a preprocessing module according to claim 1, characterized in that: The holding assembly (443) includes a chuck (4431), adsorption patches (4432), abutment components (4433), a housing (4434), and spring fasteners (4435). The chuck (4431) has four adsorption patches (4432) inside, which are connected to it. The four adsorption patches (4432) are arranged in a cross shape at equal intervals. The chuck (4431) has spring fasteners (4435) on both the left and right sides. The two spring fasteners (4435) are symmetrically arranged in an "L" shape. The chuck (4431) is installed inside the housing (4434) and rotates. The housing (4434) has a ring of abutment components (4433) inside, which are movably connected to the chuck (4431). The two spring-loaded fasteners (4435) and the chuck (4431) work together to hold the main body (43) on the left and right sides. The chuck (4431) will move inside the outer shell (4434) in conjunction with the main body (43), so that the main body (43) can maintain a positive state in real time for shooting under the action of the two.

6. A lightweight security image enhancement and face recognition device with a preprocessing module according to claim 5, characterized in that: The abutment component (4433) is provided with a ball receiving (4331), a resistance pad (4332), and a spring strip (4333). The ball receiving (4331) is provided with a ring of resistance pads (4332) connected to it, and a spring strip (4333) is connected between each pair of balls receiving (4331). The plurality of receiving balls (4331) are arranged in a ring at equal intervals inside the outer shell (4434) by spring strips (4333). The receiving balls (4331) are provided with a resistance pad (4332) on the outside, which will play a role in increasing resistance and limiting, so that the receiving balls (4331) can limit the chuck (4431) to the adjusted position.

7. A lightweight security image enhancement and face recognition device with a preprocessing module according to claim 1, characterized in that: The camera assembly (45) includes a slot (451), a base (452), a dimming assembly (453), a connector (454), and a camera (455). There are two slots (451), which are symmetrically arranged at the top and bottom ends of the base (452). The camera (455) is mounted on the top of the base (452), and the lower end of the camera (455) is provided with a slot (451) connected to it. The connector (454) provided inside the slot (451) will fit and connect with the base (452), and the dimming assembly (453) is installed at the end of the slot (451) away from the connector (454). The base (452) is fitted inside the main body (43). When the camera (455) monitors the environment in real time, the dimming component (453) moves and adjusts inside the slot (451) to assist the camera (455) in providing lighting.

8. A lightweight security image enhancement and face recognition device with a preprocessing module according to claim 7, characterized in that: The dimming assembly (453) includes a positioning head (4531), a linkage block (4532), a card plate (4533), a fill light (4534), and an extension (4535). There are two positioning heads (4531), which are symmetrically arranged at the upper and lower ends of the extension (4535). The linkage block (4532) is installed in the middle of the extension (4535). The top of the extension (4535) is fixedly connected to the card plate (4533) through the positioning head (4531). The card plate (4533) is provided with multiple fill lights (4534) arranged at equal intervals. The extension (4535) is installed inside the slot (451) via the positioning head (4531). The extension (4535) will extend and retract to adjust the position of the card plate (4533), so that the fill light (4534) on the card plate (4533) will move accordingly to cooperate with the camera (455) to perform appropriate fill light processing.

Images