Light-controllable 3D image scanning device and system

Abstract

The embodiment of the utility model provides a light-controllable 3D image scanning device and system. The light-controllable 3D image scanning device comprises a spherical shell, a visual sensing device, a lighting device and a driving circuit, wherein the visual sensing device and the lighting device are arranged on the spherical shell; the driving circuit is connected with the lighting device; the control module is connected with the visual sensing device and the driving circuit; a through hole is formed in the bottom of the spherical shell; the control module is used for receiving a 3D scanning instruction and a light control mode corresponding to the 3D scanning instruction, generating a driving signal of the driving circuit according to the light control mode, and generating a 3D scanning signal of the visual sensing device according to the 3D scanning instruction; the lighting device is lightened in response to the driving signal; the visual sensing device is used for responding to the 3D scanning signal and collecting a two-dimensional image of the head of the target human body in the through hole; and the control module is used for synthesizing a 3D scanning result of the head of the target human body according to the plurality of two-dimensional images. According to the technology, optical parameters can be conveniently adjusted in real time to adapt to mixed surfaces of various materials, and the precision of three-dimensional image acquisition is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D scanning technical field especially a kind of light controllable 3D image scanning equipment and system. BACKGROUND

[0002] In recent years, with the development of digital medical treatment, virtual makeup, customized helmet and other fields, the demand for high-precision three-dimensional image acquisition of human head is increasing. The commonly used three-dimensional image acquisition device at present is mainly based on structured light, ToF (Time of Flight) or binocular stereo vision technology. However, in this specific application scenario of human head, there are still the following problems to be solved: first, the hair and skin material have large differences, and the traditional equipment is prone to data loss or noise when processing high-reflective hair and relatively smooth skin. Second, the dynamic capture capability is insufficient, as the head may move slightly, the existing equipment is difficult to realize real-time stable high-precision scanning. In addition, different materials have significant differences in light absorption and scattering characteristics (such as high-frequency reflection of hair and diffuse reflection of skin), but the existing equipment cannot adjust the optical parameters in real time to adapt to the mixed surface of multiple materials, which ultimately leads to the decline of three-dimensional reconstruction accuracy, affecting the reliability of virtual makeup, medical customization and other applications. SUMMARY

[0003] The utility model aims at providing a kind of light controllable 3D image scanning equipment and system, to alleviate the dynamic capture capability of prior art and cannot adjust optical parameters in real time to adapt to the mixed surface of multiple materials, it is difficult to meet the technical problem of high-precision three-dimensional image acquisition demand of human head, improve dynamic capture capability and scanning accuracy.

[0004] In the first aspect, the utility model provides a kind of light controllable 3D image scanning equipment, including: spherical shell, multiple vision sensing devices and multiple lighting devices that are evenly distributed in the circumferential direction of the inner wall of the above-mentioned spherical shell, lighting device driving circuit connected with the above-mentioned lighting device;Control module connected with the above-mentioned vision sensing device and the above-mentioned lighting device driving circuit;The bottom of the above-mentioned spherical shell is provided with a through hole in vertical direction;The above-mentioned control module is configured to receive 3D scanning instruction and the light control mode corresponding to the 3D scanning instruction, according to the light control mode, the driving signal of the above-mentioned lighting device driving circuit and the 3D scanning signal of the above-mentioned vision sensing device according to the 3D scanning instruction are generated;The above-mentioned lighting device is configured to respond to the driving signal of the above-mentioned driving circuit and carry out lighting operation;The above-mentioned vision sensing device is configured to respond to the above-mentioned 3D scanning signal, and the two-dimensional image of the target human head in the above-mentioned through hole is acquired, to obtain multiple two-dimensional images of the above-mentioned target human head;The above-mentioned control module is further configured to synthesize the 3D scanning result of the above-mentioned target human head according to the above-mentioned multiple two-dimensional images.

[0005] In the embodiment of the utility model, the lighting device is an LED lamp.

[0006] In the embodiment of the utility model, the lighting device includes a main lighting device and multiple auxiliary lighting devices; the main lighting device is arranged on the top of the inner wall of the spherical shell; the light control mode includes a light compensation mode of the main lighting device, the control module is configured to generate a light compensation mode driving signal of the lighting device driving circuit according to the light compensation mode; the main lighting device is configured to perform light compensation operation in response to the light compensation mode driving signal of the lighting device driving circuit; the light control mode includes a power saving control mode of the auxiliary lighting device, the control module is configured to generate a power saving mode driving signal of the lighting device driving circuit according to the power saving control mode; the multiple auxiliary lighting devices are configured to perform brightness down operation in response to the power saving mode driving signal of the lighting device driving circuit.

[0007] In the embodiment of the utility model, the size of the main lighting device is 600*600*10mm, the power is 72W, the color temperature is 5600K, the color rendering index is greater than 80, and the power factor is greater than 0.9; the main lighting device is provided with a first light guide plate.

[0008] In the embodiment of the utility model, the size of the auxiliary lighting device is 100*100mm, the power is 6W, and the color rendering index is greater than 80; the auxiliary lighting device is provided with a second light guide plate; the materials of the first light guide plate and the second light guide plate are both acrylic.

[0009] In the embodiment of the utility model, the lighting device driving circuit is also connected with the power supply of the external device; the power supply is used to provide power supply current for the lighting device driving circuit.

[0010] In the embodiment of the utility model, the device further includes a rectifier circuit; the lighting device driving circuit is connected with the power supply through the rectifier circuit; the rectifier circuit is used to rectify the power supply current to obtain a direct current, so as to supply power to the lighting device driving circuit through the direct current.

[0011] In the embodiment of the utility model, the device further includes a connected switch and a router; the multiple visual sensing devices are connected with the switch; the router is in communication connection with the control module.

[0012] In the preferred embodiment of the utility model, the device further comprises a display connected with the control module; the display is configured to display the two-dimensional image and the 3D scanning result.

[0013] In the second aspect, the utility model embodiment further provides a light controllable 3D image scanning system, comprising: the light controllable 3D image scanning device further comprises a lifting device connected with the light controllable 3D image scanning device; the control module is further configured to receive a start-up instruction, generate a lifting signal of the lifting device; the lifting device responds to the lifting signal, drives the light controllable 3D image scanning device to rise to a preset distance, so that the head of the target human body is located directly below the through hole; when the head of the target human body is located directly below the through hole, the control module is further configured to receive a lowering instruction, generate a lowering signal of the lifting device; the lifting device responds to the lowering signal, drives the light controllable 3D image scanning device to descend until the visual sensing device identifies that the feature of the head of the target human body meets the preset position requirement, and then stops descending.

[0014] The utility model embodiment has the following beneficial technical effects:

[0015] The utility model embodiment provides a light controllable 3D image scanning device and system, comprising: spherical shell, a plurality of visual sensing devices and a plurality of lighting devices that are evenly distributed in the circumferential direction of the inner wall of the spherical shell, lighting device drive circuit connected with the lighting device, control module connected with the visual sensing device and the lighting device drive circuit, through hole is arranged at the bottom of the spherical shell in the vertical direction, the control module is configured to receive 3D scanning instruction and the light control mode corresponding to the 3D scanning instruction, according to the light control mode, the drive signal of the lighting device drive circuit is generated and according to the 3D scanning instruction, the 3D scanning signal of the visual sensing device, the lighting device is configured to respond to the drive signal of the drive circuit and carry out lighting operation, the visual sensing device is configured to respond to the 3D scanning signal, and the two-dimensional image of the head of the target human body in the through hole is collected to obtain a plurality of two-dimensional images of the head of the target human body, the control module is further configured to synthesize the 3D scanning result of the head of the target human body according to the plurality of two-dimensional images. The technology is through the setting of a plurality of visual sensing devices, and the principle of generating 3D scanning result by combining two-dimensional image is improved to capture ability, and in the process, the driving signal of the drive circuit can be generated by the light control mode to drive a plurality of lighting devices, so that the optical parameter is adjusted in real time to adapt to a variety of material mixed surfaces, and the precision of three-dimensional image acquisition is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 A structure schematic diagram of a 3D image scanning device with controllable light provided by the embodiment of the present application is shown in the figure.

[0018] Figure 2 A two-dimensional image schematic diagram provided by the embodiment of the present application is shown in the figure.

[0019] Figure 3 A 3D scanning result schematic diagram provided by the embodiment of the present application is shown in the figure.

[0020] Figure 4 A structure schematic diagram of another 3D image scanning device with controllable light provided by the embodiment of the present application is shown in the figure.

[0021] Figure 5 A structure schematic diagram of a 3D image scanning system with controllable light provided by the embodiment of the present application is shown in the figure.

[0022] Icon: 11-vision sensing device; 12-illumination device; 13-illumination device driving circuit; 14-control module; 121-main illumination device; 122- auxiliary illumination device; 40-3D image scanning device with controllable light; 41-lifting device; 42-base; 43-seat. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] In recent years, with the development of digital healthcare, virtual makeup try-on, and customized helmets, the demand for high-precision 3D image acquisition of the human head has been increasing. Currently, commonly used 3D image acquisition devices are mainly based on technologies such as structured light, Time of Flight (ToF), or binocular stereo vision. However, in the specific application scenario of the human head, the following problems still urgently need to be solved: First, hair and skin have significant material differences, and traditional devices are prone to data loss or noise when processing highly reflective hair and relatively smooth skin. Second, dynamic capture capabilities are insufficient; due to the potential for minute head movements, existing devices struggle to achieve real-time, stable, high-precision scanning. Furthermore, different materials exhibit significantly different light absorption and scattering characteristics (e.g., high-frequency reflection from hair versus diffuse reflection from skin), but existing devices cannot adjust optical parameters in real-time to adapt to mixed-material surfaces, ultimately leading to decreased 3D reconstruction accuracy and affecting the reliability of applications such as virtual makeup try-on and customized medical devices.

[0025] Based on this, this utility model provides a light-controllable 3D image scanning device and system. This technology enhances capture capabilities by setting up multiple visual sensing devices and generating 3D scanning results from combined two-dimensional images. Furthermore, during this process, multiple lighting devices can be driven by a driving circuit, facilitating real-time adjustment of optical parameters to adapt to various mixed-material surfaces and improving the accuracy of 3D image acquisition. For ease of understanding, a light-controllable 3D image scanning device will first be described in detail.

[0026] Example 1

[0027] In this embodiment, Figure 1 This is a schematic diagram of the structure of a light-controllable 3D image scanning device provided in an embodiment of the present invention.

[0028] Depend on Figure 1 As seen, this light-controlled 3D image scanning device includes:

[0029] The spherical shell, a plurality of visual sensing devices 11 and a plurality of lighting devices 12 are uniformly distributed on the inner wall of the spherical shell, a lighting device driving circuit 13 connected with the lighting devices 12, a control module 14 connected with the visual sensing devices 11 and the lighting device driving circuit 13, a through hole is arranged at the bottom of the spherical shell in the vertical direction, the control module 14 is configured to receive a 3D scanning instruction and a corresponding light control mode of the 3D scanning instruction, generate a driving signal of the lighting device driving circuit 13 according to the light control mode and a 3D scanning signal of the visual sensing device 11 according to the 3D scanning instruction, the lighting device 12 is configured to perform lighting operation in response to the driving signal of the driving circuit, and the visual sensing device 11 is configured to collect a two-dimensional image of the head of the target human body in the through hole in response to the 3D scanning signal to obtain a plurality of two-dimensional images of the head of the target human body, and the control module 14 is further configured to synthesize a 3D scanning result of the head of the target human body according to the plurality of two-dimensional images.

[0030] The light control mode includes a light supplement mode and a power saving control mode. Specifically, the light supplement mode is used to indicate that the illumination intensity of the lighting device can reach a first preset threshold with high brightness, and the power saving control mode is used to indicate that the illumination intensity of the lighting device is lower than a second preset threshold with low brightness, and the second preset threshold is less than the first preset threshold.

[0031] Here, the 3D scanning result is a 3D model of the head of the target human body.

[0032] In specific implementation, after receiving the two-dimensional images of the head of the target human body shot by the plurality of visual sensing devices 11, the control module 14 analyzes and processes these two-dimensional images by using an image processing algorithm. First, key feature points are extracted on each two-dimensional image by using a feature point detection technology, and the feature points are mapped to a unified spatial coordinate system to ensure that the feature points of all images can be aligned. Then, the specific position of each feature point in the three-dimensional space is calculated by using the multi-view geometry principle (such as the triangulation method) combined with the position and angle information of each visual sensing device, so as to generate a set of dense three-dimensional point cloud data. Next, the point cloud data is preprocessed by smoothing and denoising to form a more accurate and complete three-dimensional model surface. Finally, a surface reconstruction algorithm (such as the Poisson reconstruction or Marching Cubes algorithm) is used to convert the point cloud data into a continuous three-dimensional mesh model, and finally the 3D scanning result of the head of the target human body is output. For example, a feature point extraction method and an image reconstruction method and device are provided in the authorized publication CN113837201B.

[0033] For ease of understanding,Figure 2 A two-dimensional image schematic diagram provided for an embodiment of this utility model; Figure 3 This is a schematic diagram of a 3D scanning result provided for an embodiment of the present utility model.

[0034] The number of the aforementioned visual sensing devices 11 is 78; the visual sensing devices are arranged at 5 preset horizontal positions within the spherical shell; the first horizontal position among the 5 preset horizontal positions is located at the lowest level of the spherical shell, and the first horizontal layer has 2 visual sensing devices; the second horizontal position among the 5 preset horizontal positions is located at a first preset distance from the first horizontal position, and the second horizontal layer is located above the first horizontal layer; the second horizontal layer has 21 visual sensing devices; the third horizontal position among the 5 preset horizontal positions is located at a distance from the second horizontal position. A third horizontal layer is located at a second preset distance; the third horizontal layer is located above the second horizontal layer; the third horizontal layer is equipped with 23 visual sensing devices; the fourth horizontal position among the five preset horizontal positions is located at a third preset distance from the third horizontal position on the fourth horizontal layer; the fourth horizontal layer is located above the third horizontal layer; the fourth horizontal layer is equipped with 20 visual sensing devices; the fifth horizontal position among the five preset horizontal positions is located at a fourth preset distance from the fourth horizontal position on the fifth horizontal layer; the fifth horizontal layer is located above the fourth horizontal layer; the fifth horizontal layer is equipped with 12 visual sensing devices.

[0035] The utility model discloses an embodiment provides a kind of light controllable 3D image scanning equipment, comprising: spherical shell, multiple visual sensing devices and multiple lighting devices that are uniformly distributed in the circumferential direction of the inner wall of above-mentioned spherical shell, lighting device drive circuit connected with above-mentioned lighting device;With above-mentioned visual sensing device and above-mentioned lighting device drive circuit are all connected with control module;Above-mentioned spherical shell is provided with through hole in the bottom of vertical direction;The control module is configured to receive 3D scanning instruction, according to above-mentioned 3D scanning instruction, the driving signal of above-mentioned lighting device drive circuit and the 3D scanning signal of above-mentioned visual sensing device are generated;Above-mentioned lighting device is configured to respond to the driving signal of above-mentioned drive circuit and carry out lighting operation;Above-mentioned visual sensing device is configured to respond to above-mentioned 3D scanning signal, and the two-dimensional image of target human head in above-mentioned through hole is collected, to obtain the multiple two-dimensional images of above-mentioned target human head;Above-mentioned control module is further configured to synthesize the 3D scanning result of above-mentioned target human head according to above-mentioned multiple two-dimensional images.The technology is generated 3D scanning result by two-dimensional image combination principle by setting multiple visual sensing devices, improve capture ability, and in this process, multiple lighting devices can be driven by drive circuit, so as to facilitate real-time adjustment optical parameter adaptation mixed surface of multiple materials, improve the precision of three-dimensional image acquisition.

[0036] Embodiment 2

[0037] On the basis of above-mentioned embodiment, Figure 4 Another light controllable 3D image scanning equipment structure schematic diagram provided by the utility model embodiment.

[0038] As Figure 4 Seen, above-mentioned lighting device 12 is LED lamp.

[0039] Further, above-mentioned multiple lighting devices 12 include: one main lighting device 121 and multiple auxiliary lighting devices 122;Above-mentioned main lighting device 121 is arranged at the top of the inner wall of above-mentioned spherical shell;Above-mentioned light control mode includes the light supplement mode of main lighting device, above-mentioned control module 14 is configured to generate the light supplement mode driving signal of above-mentioned lighting device drive circuit according to above-mentioned light supplement mode;Above-mentioned main lighting device 121 is configured to respond to the light supplement mode driving signal of above-mentioned lighting device drive circuit 13 and carry out light supplement operation;Above-mentioned light control mode includes the power saving control mode of auxiliary lighting device, above-mentioned control module 14 is configured to generate the power saving mode driving signal of above-mentioned lighting device drive circuit 13 according to above-mentioned power saving control mode;Above-mentioned multiple auxiliary lighting devices 122 are configured to respond to the power saving mode driving signal of above-mentioned lighting device drive circuit and carry out brightness down operation.

[0040] Here, the number of the plurality of auxiliary lighting devices 122 is 11. The plurality of auxiliary lighting devices 122 correspond to the periphery of the head of the target human body, and specifically include the face, the lower jaw, the side, and the back of the head of the target human body.

[0041] In one embodiment, the main lighting device 121 has a size of 600*600*10mm, a power of 72W, a color temperature of 5600K, a color rendering index greater than 80, and a power factor greater than 0.9. The main lighting device 121 is provided with a first light guide plate.

[0042] Further, the auxiliary lighting device 122 has a size of 100*100mm, a power of 6W, and a color rendering index greater than 80. The auxiliary lighting device 122 is provided with a second light guide plate. The first light guide plate and the second light guide plate are both made of acrylic.

[0043] In actual operation, the lighting device driving circuit 13 is also connected to an external power supply. The power supply is used to provide a power supply current for the lighting device driving circuit.

[0044] Further, the device further comprises a rectifier circuit. The lighting device driving circuit 13 is connected to the power supply through the rectifier circuit. The rectifier circuit is used to rectify the power supply current to obtain a direct current, so as to supply power to the lighting device driving circuit through the direct current.

[0045] Further, the device further comprises a connected switch and a router. The plurality of visual sensing devices are connected to the switch. The router is in communication connection with the control module.

[0046] Further, the device further comprises a display connected to the control module. The display is configured to display the two-dimensional image and the 3D scanning result.

[0047] Further, the light-controllable 3D image scanning device further comprises a heat dissipation device arranged in the spherical shell. The control module 14 is further configured to receive a 3D scanning instruction, and generate a heat dissipation start signal of the heat dissipation device according to the 3D scanning instruction. The heat dissipation device is configured to perform heat dissipation operation in response to the heat dissipation start signal.

[0048] In actual operation, the heat dissipation device is an air circulation device, which is a fan.

[0049] In the specific implementation, the spherical shell is provided with heat dissipation holes corresponding to the positions of the fans; the number of the fans is 8; the positions of the heat dissipation holes are below the visual sensing devices 11, usually below the spherical shell. Further, the fans are provided with temperature sensors; the temperature sensors are used to obtain real-time temperature; the control module 14 is also used to generate a rotating speed signal of the fans according to the real-time temperature; the fans are configured to perform heat dissipation operation in response to the rotating speed signal.

[0050] The utility model embodiment provides a kind of 3D image scanning equipment of light ray controllable, comprising: spherical shell, a plurality of visual sensing devices and a plurality of lighting devices that are uniformly distributed in the circumferential direction of the inner wall of the spherical shell, lighting device drive circuit connected with the above-mentioned lighting device;With the above-mentioned visual sensing device and the above-mentioned lighting device drive circuit are all connected with control module;The bottom of the vertical direction of the above-mentioned spherical shell is provided with through hole;The control module is configured to receive 3D scanning instruction, according to the above-mentioned 3D scanning instruction, the driving signal of the above-mentioned lighting device drive circuit and the 3D scanning signal of the above-mentioned visual sensing device are generated;The above-mentioned lighting device is configured to respond to the driving signal of the above-mentioned drive circuit and carry out lighting operation;The above-mentioned visual sensing device is configured to respond to the above-mentioned 3D scanning signal, and the two-dimensional image of the head of the target human body in the above-mentioned through hole is collected to obtain a plurality of two-dimensional images of the head of the target human body;The control module is also configured to synthesize the 3D scanning result of the head of the target human body according to the above-mentioned plurality of two-dimensional images;Wherein, the above-mentioned plurality of lighting devices include: one main lighting device and a plurality of auxiliary lighting devices;The above-mentioned main lighting device is arranged at the top of the inner wall of the above-mentioned spherical shell;The control module is configured to the light compensation mode of main lighting device, according to the above-mentioned light compensation mode, the light compensation mode driving signal of the above-mentioned lighting device drive circuit is generated;The above-mentioned main lighting device is configured to respond to the light compensation mode driving signal of the above-mentioned lighting device drive circuit and carry out light compensation operation;The control module is also configured to receive power saving control mode, according to the above-mentioned power saving control mode, the power saving mode driving signal of the above-mentioned lighting device drive circuit is generated;The above-mentioned plurality of auxiliary lighting devices are configured to respond to the power saving mode driving signal of the above-mentioned lighting device drive circuit and carry out brightness down operation.The technology is generated by setting a plurality of visual sensing devices, to generate 3D scanning result by two-dimensional image combination principle, improve capture ability, and in this process, a plurality of lighting devices can be driven by driving circuit, and the lighting device is driven by lighting device drive circuit to respond to a variety of lighting modes, so as to further facilitate real-time adjustment of optical parameters to adapt to a variety of material mixed surfaces, and further improve the accuracy of three-dimensional image acquisition.

[0051] Embodiment 3

[0052] On the basis of the above embodiment, Figure 5The utility model provides a kind of light controllable 3D image scanning system's structural schematic diagram provided by the embodiment of the utility model.

[0053] By Figure 5 As seen, the system includes: the light controllable 3D image scanning device 40 of above-mentioned embodiment further includes lifting device 41 connected with above-mentioned light controllable 3D image scanning device 40;Above-mentioned control module 14 is further configured to receive power-on instruction, generates the lifting signal of above-mentioned lifting device 41;Above-mentioned lifting device 41 responds to above-mentioned lifting signal, drives above-mentioned light controllable 3D image scanning device 40 to rise to preset distance, to make target human head be located in the straight below of through hole;When above-mentioned target human head is located in the straight below of above-mentioned through hole, above-mentioned control module is further configured to receive lowering instruction, generates the lowering signal of above-mentioned lifting device;Above-mentioned lifting device responds to above-mentioned lowering signal, drives above-mentioned light controllable 3D image scanning device to descend, until above-mentioned vision sensing device identifies the feature of above-mentioned target human head to meet preset position requirement, stop descending.

[0054] Further, above-mentioned system further includes the base 42 for setting above-mentioned lifting device 41;And seat 43 located in the straight below of above-mentioned through hole.

[0055] The light controllable 3D image scanning system provided by the embodiment of the utility model has the same technical features with the light controllable 3D image scanning device provided by the above-mentioned embodiment, so it can also solve the same technical problem and achieve the same technical effect.The skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system described above can refer to the operation process of the three-dimensional image acquisition device with heat dissipation function in the foregoing embodiment, which will not be repeated here.

[0056] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0057] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0058] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only configured to distinguish the description and cannot be understood as indicating or implying relative importance.

[0059] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0060] In the description of the utility model, it is also necessary to explain that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0061] Some embodiments of the utility model will be described in detail below in combination with the drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

Claims

1. A light steerable 3D image scanning device, characterized in that, The device comprises: a spherical shell, a plurality of visual sensing devices and a plurality of lighting devices which are evenly distributed on the inner wall of the spherical shell in the circumferential direction, and a lighting device driving circuit connected with the lighting devices; a control module connected with the visual sensing devices and the lighting device driving circuit; the spherical shell is provided with a through hole at the bottom in the vertical direction; the control module is configured to receive a 3D scanning instruction and a light control mode corresponding to the 3D scanning instruction, generate a driving signal of the lighting device driving circuit according to the light control mode, and generate a 3D scanning signal of the visual sensing device according to the 3D scanning instruction; the lighting device is configured to perform lighting operation in response to the driving signal of the driving circuit; the visual sensing device is configured to collect two-dimensional images of the head of a target human body in the through hole in response to the 3D scanning signal, so as to obtain a plurality of two-dimensional images of the head of the target human body; the control module is further configured to synthesize a 3D scanning result of the head of the target human body according to the plurality of two-dimensional images.

2. The light steerable 3D image scanning device of claim 1, wherein, The lighting device is an LED lamp.

3. The light steerable 3D image scanning device of claim 1, wherein, The plurality of lighting devices comprises a main lighting device and a plurality of auxiliary lighting devices; the main lighting device is arranged at the top of the inner wall of the spherical shell; the light control mode comprises a light supplementing mode of the main lighting device, and the control module is configured to generate a light supplementing mode driving signal of the lighting device driving circuit according to the light supplementing mode; the main lighting device is configured to perform light supplementing operation in response to the light supplementing mode driving signal of the lighting device driving circuit; the light control mode comprises a power saving control mode of the auxiliary lighting device, and the control module is configured to generate a power saving mode driving signal of the lighting device driving circuit according to the power saving control mode; the plurality of auxiliary lighting devices are configured to perform brightness down-regulation operation in response to the power saving mode driving signal of the lighting device driving circuit.

4. The light steerable 3D image scanning device of claim 3, wherein, The size of the main lighting device is 600*600*10mm, the power is 72W, the color temperature is 5600K, the color rendering index is greater than 80, and the power factor is greater than 0.9; the main lighting device is provided with a first light guide plate.

5. The light steerable 3D image scanning device of claim 4, wherein, The size of the auxiliary lighting device is 100*100mm, the power is 6W, and the color rendering index is greater than 80; the auxiliary lighting device is provided with a second light guide plate; the materials of the first light guide plate and the second light guide plate are both acrylic.

6. The light steerable 3D image scanning device of claim 1, wherein, The lighting device driving circuit is further connected with an external power supply; the power supply is used to provide power supply current for the lighting device driving circuit.

7. The light steerable 3D image scanning device of claim 6, wherein, The device further comprises a rectifier circuit; the lighting device driving circuit is connected with the power supply through the rectifier circuit; the rectifier circuit is used to rectify the power supply current to obtain a direct current, so as to supply power to the lighting device driving circuit through the direct current.

8. The light steerable 3D image scanning device of claim 1, wherein, The device further comprises a connected switch and a router; the plurality of visual sensing devices are connected with the switch; the router is in communication connection with the control module.

9. The light steerable 3D image scanning device of claim 1, wherein, The device further comprises a display connected to the control module; the display is configured to display the two-dimensional image and the 3D scanning result.

10. A light steerable 3D image scanning system, characterized by, Comprise: The light-controllable 3D image scanning device of any one of claims 1 to 9 further comprises a lifting device connected to the light-controllable 3D image scanning device; The control module is further configured to receive a start-up instruction, and generate a lifting signal of the lifting device; The lifting device drives the light-controllable 3D image scanning device to rise to a preset distance in response to the lifting signal, so that the head of the target human body is located directly below the through hole; When the head of the target human body is located directly below the through hole, the control module is further configured to receive a lowering instruction, and generate a lowering signal of the lifting device; The lifting device drives the light-controllable 3D image scanning device to descend in response to the lowering signal, and stops descending when the visual sensing device identifies that the features of the head of the target human body meet the preset position requirements.

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