High-efficiency portrait snapshot device

Abstract

The application discloses a kind of high-efficiency portrait snapshot device, including: mounting seat, first drive motor is arranged in its interior;First camera module, including shell, first camera and fill light, shell central setting has center tube, connecting joint is inserted into center tube, first camera and fill light are arranged along center tube circumference, and first camera is wide-angle lens;Second camera module, including first stepper motor, horizontal rotating arm, second stepper motor, swing arm, third stepper motor and second camera, first stepper motor is fixedly installed on connecting joint, and second camera is long focus lens.The present application compared with prior art, solve the existing portrait snapshot device's image acquisition range is limited, and the problem of insufficient face sharpness in snapshot image.

Description

Technical Field

[0001] This invention relates to the field of image capture device technology, and in particular to a high-efficiency human portrait capture device. Background Technology

[0002] In smart cities, to achieve public safety and crime prevention, cameras are installed in public places to capture facial images for identification. Smart city facial recognition systems are also integrated with traffic and environmental monitoring systems to improve management efficiency.

[0003] Ordinary portrait capture devices have a fixed camera angle, and the angle can only be changed by physically adjusting the bracket or manually rotating the base. The range of rotation is limited, and the clarity of the captured face is insufficient, which cannot meet the capture requirements. Summary of the Invention

[0004] The purpose of this invention is to provide an efficient portrait capture device to solve the problems of limited image acquisition range and insufficient facial clarity in captured images of existing portrait capture devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency portrait capture device, comprising: The mounting base has a first drive motor inside, and a connecting joint is provided at the bottom of the mounting base. The inner ring of the bearing is fitted onto the connecting joint. The first camera module includes a housing, a first camera, and a fill light. A central tube is provided in the center of the housing, and a connecting connector extends into the central tube. The outer ring of the bearing is fixedly installed on the inner wall of the central tube. A driven gear is sleeved on the central tube. The motor shaft of the first drive motor passes through the mounting base and connects to the driving gear. The driving gear meshes with the driven gear. The first camera and the fill light are arranged around the central tube. The first camera is a wide-angle lens. The second camera module includes a first stepper motor, a horizontal rotating arm, a second stepper motor, a swing arm, a third stepper motor, and a second camera. The first stepper motor is fixedly mounted on the connector, and the motor shaft of the first stepper motor is fixedly connected to the horizontal rotating arm. The swing arm is rotatably connected to the end of the horizontal rotating arm. The second stepper motor is fixedly mounted to the end of the horizontal rotating arm, and the motor shaft of the second stepper motor is fixedly connected to the swing arm. The third stepper motor is fixedly mounted on the swing arm, and the second camera is rotatably connected to the swing arm. The motor shaft of the third stepper motor is fixedly connected to the second camera, which is a telephoto lens.

[0006] As a further description of the above technical solution: The surface of the connector is provided with external threads. The first stepper motor is fixedly installed inside the motor housing, and the motor housing is threadedly connected to the connector.

[0007] As a further description of the above technical solution: The mounting base is equipped with an adapter pipe at the top, which is L-shaped and has a connecting plate 1 at the end.

[0008] As a further description of the above technical solution: The housing is equipped with three supplementary lights arranged circumferentially along the central tube, with the included angle between two adjacent supplementary lights being 90 degrees.

[0009] As a further description of the above technical solution: The fill light can be a white light fill light, a warm light fill light, or an infrared fill light.

[0010] As a further description of the above technical solution: The housing is equipped with a connecting bracket, the rotary motor is fixedly mounted on the connecting bracket, and the supplementary light is fixedly mounted on the motor shaft of the rotary motor.

[0011] As a further description of the above technical solution: A de-energized magnet is installed on the horizontal rotating arm, and the de-energized magnet is elastically connected to the horizontal rotating arm. An annular iron plate corresponding to the position of the de-energized magnet is installed on the bottom surface of the housing.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, when the portrait capture device captures images, the first camera in the first camera module is a wide-angle lens, and can drive the driven gear on the central tube to rotate through the active gear on the motor shaft of the first drive motor. This allows the first camera to quickly capture global scene information, identify and mark the human body position through an AI target detection algorithm, and then use the second camera in the second camera module, which is a telephoto lens, to perform high-precision tracking of the marked human body, thereby ensuring the clarity of the face in the captured image. 2. In this invention, the first camera and the second camera module are integrated together, and multiple cameras work together. During the image acquisition process, supplementary lighting can be provided by a supplementary light, which solves the problems of limited image acquisition range and insufficient facial clarity in the captured images of existing portrait capture devices.

[0013] 3. In this invention, the first stepper motor drives the horizontal rotating arm to rotate horizontally, the second stepper motor drives the swing arm to swing, and the third stepper motor drives the second camera to rotate vertically. This allows the second camera to be flexibly adjusted through multi-axis motion to capture images at different shooting angles, thereby ensuring image acquisition quality and facilitating subsequent face recognition and feature extraction. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a high-efficiency portrait capture device.

[0016] Figure 2 This is a schematic diagram illustrating the state changes of a high-efficiency portrait capture device.

[0017] Figure 3 This is a schematic diagram of the internal structure of a high-efficiency portrait capture device.

[0018] Figure 4 This is a cross-sectional view of a high-efficiency portrait capture device.

[0019] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0020] Legend: 1. Mounting base; 11. Connecting joint; 12. Bearing; 13. First drive motor; 131. Drive gear; 14. Adapter pipe; 2. First camera module; 21. Housing; 211. Central tube; 212. Driven gear; 213. Ring-shaped iron plate; 214. Rotary motor; 22. First camera; 23. Fill light; 3. Second camera module; 31. First stepper motor; 311. Motor housing; 32. Horizontal rotating arm; 321. De-energized magnet; 322. Spring; 33. Second stepper motor; 34. Swing arm; 35. Third stepper motor; 36. Second camera. 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. Example 1

[0023] Please see Figure 1-5 This invention provides a technical solution: a high-efficiency portrait capture device, comprising: Mounting base 1, which is equipped with a first drive motor 13 inside, and a connecting joint 11 is provided at the bottom of mounting base 1, and the inner ring of bearing 12 is fitted onto the connecting joint 11; The first camera module 2 includes a housing 21, a first camera 22, and a fill light 23. A central tube 211 is provided in the center of the housing 21. A connecting joint 11 extends into the central tube 211. The outer ring of the bearing 12 is fixedly installed on the inner wall of the central tube 211. A driven gear 212 is sleeved on the central tube 211. The motor shaft of the first drive motor 13 passes through the mounting seat 1 and is connected to the driving gear 131. The driving gear 131 meshes with the driven gear 212. The first camera 22 and the fill light 23 are arranged circumferentially along the central tube 211. The first camera 22 is a wide-angle lens. The second camera module 3 includes a first stepper motor 31, a horizontal rotating arm 32, a second stepper motor 33, a swing arm 34, a third stepper motor 35, and a second camera 36. The first stepper motor 31 is fixedly mounted on the connecting joint 11. The motor shaft of the first stepper motor 31 is fixedly connected to the horizontal rotating arm 32. The swing arm 34 is rotatably connected to the end of the horizontal rotating arm 32. The second stepper motor 33 is fixedly mounted to the end of the horizontal rotating arm 32. The motor shaft of the second stepper motor 33 is fixedly connected to the swing arm 34. The third stepper motor 35 is fixedly mounted on the swing arm 34. The second camera 36 is rotatably connected to the swing arm 34. The motor shaft of the third stepper motor 35 is fixedly connected to the second camera 36. The second camera 36 is a telephoto lens.

[0024] The first stepper motor 31 drives the horizontal rotating arm 32 to rotate horizontally, the second stepper motor 33 drives the swing arm 34 to swing, and the third stepper motor 35 drives the second camera 36 to rotate vertically. This allows the second camera 36 to be flexibly adjusted through multi-axis motion to capture images at different shooting angles, ensuring image acquisition quality and facilitating subsequent face recognition and feature extraction.

[0025] The surface of the connecting joint 11 is provided with external threads. The first stepper motor 31 is fixedly installed inside the motor housing 311. The motor housing 311 is threadedly connected to the connecting joint 11, thereby realizing the installation of the first stepper motor 31.

[0026] The first camera module 2 hides the first stepper motor 31, simplifying the structure of the portrait capture device.

[0027] Working principle: When the portrait capture device captures images, the first camera 22 in the first camera module 2 is a wide-angle lens. It can drive the driven gear 212 on the central tube 211 to rotate via the active gear 131 on the motor shaft of the first drive motor 13, causing the housing 21 to rotate. This allows the first camera 22 to quickly capture global scene information. The AI ​​target detection algorithm identifies and marks the human body's position. Then, the second camera 36 in the second camera module 3, which is a telephoto lens, performs high-precision tracking of the marked human body to ensure facial clarity in the captured image. The first camera 22 and the second camera module 3 are integrated together, with multiple cameras working in coordination. Furthermore, supplementary lighting can be provided by the supplementary light 23 during image acquisition, solving the problems of limited image acquisition range and insufficient facial clarity in captured images found in existing portrait capture devices. Example 2

[0028] Based on the above embodiments, the following improved technical solutions are further made in this embodiment: the top of the mounting base 1 is provided with a connecting pipe 14, the connecting pipe 14 is "L" shaped, and the end of the connecting pipe 14 is provided with a connecting plate 141.

[0029] Mounting base 1 improves installation flexibility through adapter pipe 14, the interior of which can be used for wiring. Example 3

[0030] This embodiment further improves upon the above embodiment by providing the following technical solution: Three supplementary lights 23 are arranged circumferentially along the central tube 211 on the housing 21, with an included angle of 90 degrees between adjacent supplementary lights 23. The supplementary lights 23 are white light supplementary lights, warm light supplementary lights, or infrared supplementary lights.

[0031] White fill lights have a color temperature of 5000K-6500K and a color rendering index (CRI) of ≥95, while warm fill lights have a color temperature of 2700K-3500K and a CRI of ≥90.

[0032] The three supplementary lights 23 can be white light, warm light, and infrared light respectively. By rotating and adjusting the different supplementary lights 23 to correspond to the second camera 36, ​​the human image capture device can be used to provide supplementary lighting in different application scenarios. For example, white light can be used to ensure high color reproduction, warm light can be used to avoid reducing glare, and infrared light can be used to provide supplementary lighting in places where concealed monitoring is required to meet the image acquisition needs. Example 4

[0033] Based on the above embodiments, this embodiment further improves upon the following technical solution: a connecting bracket is provided on the housing 21, the rotary motor 214 is fixedly mounted on the connecting bracket, and the supplementary light 23 is fixedly mounted on the motor shaft of the rotary motor 214.

[0034] The fill light 23 can be rotated by the rotary motor 214 to adjust the fill light angle, effectively follow the second camera 36, ​​and improve the fill light effect. Example 5

[0035] This embodiment further improves upon the above embodiment by providing the following technical solution: a de-energized magnet 321 is provided on the horizontal rotating arm 32, and the de-energized magnet 321 is elastically connected to the horizontal rotating arm 32. An annular iron plate 213 corresponding to the position of the de-energized magnet 321 is provided on the bottom surface of the housing 21. The de-energized magnet 321 is connected to a power source through a wire, and a spring 322 is provided below the de-energized magnet 321.

[0036] In order to achieve synchronous rotation of the first camera module 2 and the second camera module 3, the power supply of the de-energized magnet 321 can be disconnected, so that the de-energized magnet 321 can be attracted and fixed to the annular iron piece 213, simplifying the state adjustment of the second camera module 3 and better locking the horizontal position of the second camera module 3. Under normal conditions, the de-energized magnet 321 is demagnetized when energized, and the de-energized magnet 321 makes elastic contact with the annular iron plate 213 so that the first camera module 2 and the second camera module 3 can be rotated and adjusted independently.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency portrait capture device, characterized in that, include: The mounting base has a first drive motor installed inside it, and a connecting joint is provided at the bottom of the mounting base. The inner ring of the bearing is fitted onto the connecting joint. The first camera module includes a housing, a first camera, and a fill light. A central tube is provided in the center of the housing. The connecting joint extends into the central tube. The outer ring of the bearing is fixedly installed on the inner wall of the central tube. A driven gear is sleeved on the central tube. The motor shaft of the first drive motor passes through the mounting base and connects to the driving gear. The driving gear meshes with the driven gear. The first camera and the fill light are arranged circumferentially along the central tube. The first camera is a wide-angle lens. The second camera module includes a first stepper motor, a horizontal rotating arm, a second stepper motor, a swing arm, a third stepper motor, and a second camera. The first stepper motor is fixedly mounted on the connecting joint, and the motor shaft of the first stepper motor is fixedly connected to the horizontal rotating arm. The swing arm is rotatably connected to the end of the horizontal rotating arm. The second stepper motor is fixedly mounted to the end of the horizontal rotating arm, and the motor shaft of the second stepper motor is fixedly connected to the swing arm. The third stepper motor is fixedly mounted on the swing arm, and the second camera is rotatably connected to the swing arm. The motor shaft of the third stepper motor is fixedly connected to the second camera, which is a telephoto lens.

2. The high-efficiency portrait capture device according to claim 1, characterized in that, The surface of the connecting joint is provided with external threads, and the first stepper motor is fixedly installed inside the motor housing, which is threadedly connected to the connecting joint.

3. The high-efficiency portrait capture device according to claim 1, characterized in that, The mounting base is provided with an adapter pipe at the top, the adapter pipe is "L" shaped, and the end of the adapter pipe is provided with a connecting plate 1.

4. The high-efficiency portrait capture device according to claim 1, characterized in that, The housing is provided with three supplementary lights arranged circumferentially along the central tube, and the included angle between two adjacent supplementary lights is 90 degrees.

5. The high-efficiency portrait capture device according to claim 4, characterized in that, The supplementary light is a white light supplementary light, a warm light supplementary light, or an infrared supplementary light.

6. The high-efficiency portrait capture device according to claim 1, characterized in that, The housing is provided with a connecting bracket, the rotary motor is fixedly mounted on the connecting bracket, and the supplementary light is fixedly mounted on the motor shaft of the rotary motor.

7. The high-efficiency portrait capture device according to claim 1, characterized in that, A de-energized magnet is provided on the horizontal rotating arm, and the de-energized magnet is elastically connected to the horizontal rotating arm. An annular iron plate corresponding to the position of the de-energized magnet is provided on the bottom surface of the housing.

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