Human body three-dimensional data acquisition structure
Through the combination of multi-angle cameras and grating structures, the problem of difficult to accurately measure complex shapes in traditional human body measurement methods is solved, and high-precision human body three-dimensional data collection and model construction are achieved.
Patent Information
- Application Number
- CN202422717241.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Traditional anthropometric methods have difficulty accurately measuring complex shapes and subtle body changes, especially curved areas such as the chest and buttocks, resulting in inaccurate measurement results.
It adopts a multi-angle camera combination and grating structure, including parallel cameras, downward-looking cameras, upward-looking cameras and gratings. Through image acquisition and light pattern projection at different angles, combined with the deformation and offset of light, it accurately calculates the depth of each point on the human body surface and constructs a high-precision three-dimensional model.
It realizes the comprehensive collection of data of all parts of the human body, improves the integrity and accuracy of the data, can accurately construct a three-dimensional model of the human body, reduce shadows and dark areas, and provide uniform light to ensure clear image acquisition.
Smart Images
Figure CN223333371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of scanning equipment, in particular to a three-dimensional data acquisition structure for a human body. Background Art
[0002] Traditional anthropometric methods, such as using simple tools like tape measures, primarily capture the body's linear dimensions. They struggle to accurately measure complex shapes, curves, and subtle variations in body shape. For example, measuring curved areas like the chest and hips with a tape measure cannot accurately reflect their true shape and dimensions, resulting in inaccurate measurements. Utility Model Content
[0003] Based on this, the purpose of the present invention is to provide a human body three-dimensional data acquisition structure with high acquisition accuracy.
[0004] The utility model adopts the following technical solutions:
[0005] A three-dimensional data acquisition structure for a human body comprises a mounting frame and an acquisition component arranged on one side of the mounting frame; the acquisition component comprises a plurality of parallel cameras arranged on one side of the mounting frame, a downward-looking camera arranged above the parallel cameras, an upward-looking camera arranged below the parallel cameras, and a plurality of gratings equidistantly arranged on the mounting frame; the downward-looking camera is arranged tilted downward, and the upward-looking camera is arranged tilted upward.
[0006] Furthermore, the acquisition component also includes a light strip, which is arranged on the mounting brackets on both sides of the parallel camera.
[0007] Furthermore, fixing grooves are provided on the mounting frames on both sides of the parallel camera, and the light strips are installed in the fixing grooves.
[0008] Furthermore, the human body three-dimensional data acquisition structure also includes a hinge, a cover plate and a locking assembly. The mounting frame on the side away from the acquisition assembly is provided with an installation slot, and the mounting frame on the side of the installation slot is connected to the cover plate rotating shaft through the hinge; the mounting frame away from the hinge and the cover plate are locked and connected by the locking assembly.
[0009] Furthermore, a down-looking mounting column is provided on the mounting groove opposite to the down-looking camera, and the down-looking camera is installed in the mounting groove through the down-looking mounting column. A down-looking channel is provided on the mounting groove opposite to the down-looking camera, and the down-looking camera is irradiated toward the side away from the cover plate through the down-looking channel.
[0010] Furthermore, an upward-looking mounting column is provided on the mounting groove opposite to the upward-looking camera, and the upward-looking camera is installed in the mounting groove through the upward-looking mounting column. An upward-looking channel is provided on the mounting groove opposite to the upward-looking camera, and the upward-looking camera is irradiated toward the side away from the cover plate through the upward-looking channel.
[0011] Furthermore, the parallel camera is installed in the installation groove, and a parallel channel is provided on the installation groove opposite to the parallel camera, and the parallel camera illuminates toward the side away from the cover plate through the parallel channel.
[0012] Furthermore, the grating is installed in the installation groove, and an irradiation channel is provided on the installation groove opposite to the grating, and the grating is irradiated toward a side away from the cover plate through the irradiation channel.
[0013] Furthermore, there are three parallel cameras, and the three parallel cameras are arranged in a vertical array on the mounting frame.
[0014] Furthermore, there are four gratings, and the gratings are arranged in a vertical array on the mounting frame.
[0015] The beneficial effects of the utility model are:
[0016] The human body three-dimensional data acquisition structure involved in the present utility model has high acquisition accuracy. Through the acquisition component, it can comprehensively acquire data from various parts of the human body, and information on the side, top and bottom of the body can be obtained. Compared with the acquisition method of a single angle, the integrity of the data is greatly improved. By projecting a light pattern onto the surface of the human body through a grating, and combining the images taken by the upward-looking camera, the parallel camera and the downward-looking camera, the deformation and offset of the light can be used to accurately calculate the depth of each point on the surface of the human body. In addition, the data fusion of cameras at different angles can make it possible to more accurately construct a three-dimensional model of the human body during the three-dimensional reconstruction process. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional schematic diagram of a human body three-dimensional data acquisition structure according to an embodiment of the present invention;
[0018] Figure 2 for Figure 1 A three-dimensional schematic diagram of the human body three-dimensional data acquisition structure from another angle;
[0019] Figure 3 for Figure 1 Exploded diagram of the human body 3D data acquisition structure;
[0020] Figure 4 for Figure 1 Schematic diagram of a three-dimensional mounting frame of a human body three-dimensional data acquisition structure. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0024] See also Figures 1 to 4 , which is a human body three-dimensional data acquisition structure of an embodiment of the present invention, includes a mounting frame 10 and an acquisition component 20 arranged on one side of the mounting frame 10; the acquisition component 20 includes a plurality of parallel cameras 21 arranged on one side of the mounting frame 10, a downward-looking camera 22 arranged at the upper end of the parallel camera 21, an upward-looking camera 23 arranged at the lower end of the parallel camera 21, and a plurality of gratings 24 equidistantly arranged on the mounting frame 10; the downward-looking camera 22 is arranged to be tilted downward, and the upward-looking camera 23 is arranged to be tilted upward.
[0025] The working principle of the human body three-dimensional data acquisition structure of the present invention is as follows: multiple parallel cameras 21 are located in the same plane and are parallel to each other, and are used to collect three-dimensional information of the human body in the horizontal direction; obtain data such as the outline and shape of the side of the human body from different angles; the downward-looking camera 22 is set at an angle downward to obtain information from the downward angle of the top and upper body of the human body; for example, when collecting data of the head, shoulders and other parts of the human body, the downward-looking camera 22 can capture details observed from above, such as the distribution of hair, the width of the shoulders and their relative position relationship with other parts of the body; the upward-looking camera 23 is set at an angle upward to obtain information from the upward angle of the lower body and feet and other parts of the human body; for example, it can clearly see details observed from below, such as the shape of the shoes and the connection angle between the legs and feet; multiple equidistantly arranged gratings 24 are used to assist the camera in collecting depth information; by projecting specific light patterns onto the surface of the human body, when these light patterns are captured by the camera, the depth information of each point on the surface of the human body is calculated based on the deformation and offset of the light.
[0026] Compared with the existing technology, the human body three-dimensional data acquisition structure of the present invention has high acquisition accuracy. Through the acquisition component 20, it can comprehensively acquire data from various parts of the human body, and information from the side, top and bottom of the body can be obtained; compared with the single-angle acquisition method, the integrity of the data is greatly improved; the light pattern is projected onto the human body surface through the grating 24, and combined with the images captured by the upward-looking camera 23, the parallel camera 21 and the downward-looking camera 22, the deformation and offset of the light can be used to accurately calculate the depth of each point on the human body surface; coupled with the data fusion of cameras at different angles, a three-dimensional model of the human body can be constructed more accurately during the three-dimensional reconstruction process.
[0027] Please refer to Figure 1 and Figure 3 The acquisition component 20 also includes a light strip 25, which is arranged on the mounting bracket 10 on both sides of the parallel camera 21. When collecting three-dimensional data of the human body, the light emitted by the light strip 25 can illuminate the surface of the human body and reduce shadows and dark areas. When the ambient light is dim or uneven, the light strip 25 can provide uniform and stable light to ensure that the parallel camera 21, the downward-looking camera 22, and the upward-looking camera 23 can all capture clear images of the human body. Just like using lighting equipment to illuminate the subject in a studio, the light strip 25 can make the contours, textures and other details of the human body appear more clearly in the camera's field of view. The presence of the light strip 25 can provide visual guidance for the subject. When the subject enters the acquisition area, the light emitted by the light strip 25 allows the subject to intuitively understand their position in the acquisition area and the approximate acquisition range.
[0028] The mounting frame 10 is provided with fixing grooves 11 on both sides of the parallel camera 21, and the light strip 25 is installed in the fixing grooves 11. The setting of the fixing grooves 11 provides a dedicated installation position for the light strip 25; installing the light strip 25 in the fixing grooves 11 can ensure that the position of the light strip 25 on the mounting frame 10 is relatively fixed; during the use of the data acquisition device, the light strip 25 is protected from vibration, collision, or other external factors; the fixing grooves 11 can enclose the light strip 25, reducing the chance of direct contact between the light strip 25 and external objects.
[0029] Please refer to Figures 2 to 4 The human body three-dimensional data acquisition structure also includes a hinge 30, a cover plate 40 and a locking assembly 50. The mounting frame 10 on the side away from the acquisition assembly 20 is provided with a mounting groove 12, and the mounting frame 10 on the side of the mounting groove 12 is connected to the cover plate 40 through the hinge 30; the mounting frame 10 and the cover plate 40 away from the hinge 30 are locked and connected by the locking assembly 50. The hinge 30 enables the cover 40 to rotate relative to the mounting frame 10. When the human body three-dimensional data acquisition structure is not in use, the cover 40 can cover the mounting slot 12 by rotating the hinge 30; preventing dust, liquid and other foreign matter from entering the mounting slot 12, and protecting the electronic components, circuits and other components in the mounting slot 12; the mounting slot 12 can also be used to store some accessories related to data acquisition; when the components in the mounting slot 12 need to be maintained or inspected, first open the locking assembly 50, and then flip open the cover 40 through the hinge 30; this allows easy access to the components inside the mounting slot 12; the locking assembly 50 is used to tightly connect the cover 40 and the mounting frame 10 together to ensure that the cover 40 will not be accidentally opened during normal use.
[0030] A downward mounting column 13 is provided on the mounting groove 12 opposite to the downward camera 22, and the downward camera 22 is installed in the mounting groove 12 through the downward mounting column 13. A downward channel 110 is provided on the mounting groove 12 opposite to the downward camera 22, and the downward camera 22 is illuminated toward the side away from the cover plate 40 through the downward channel 110. The presence of the overlooking mounting column 13 provides a stable mounting point for the overlooking camera 22; by installing the overlooking camera 22 on the overlooking mounting column 13, the position of the overlooking camera 22 in the mounting groove 12 can be fixed; this fixed installation method can effectively prevent the overlooking camera 22 from being displaced due to vibration or other external factors during the operation of the equipment, thereby ensuring the accuracy and stability of data acquisition; the overlooking mounting column 13 also plays a positioning role, so that the overlooking camera 22 can be installed according to a predetermined angle and position; the overlooking channel 110 is a key structure for the overlooking camera 22 to collect data; it provides a special transmission path for the light emitted by the overlooking camera 22, so that the light can be smoothly irradiated to the side away from the cover plate 40, that is, towards the collection area where the human body is located; the overlooking channel 110 can guide the light to avoid scattering or reflection of the light in the mounting groove 12, thereby ensuring that the light can effectively irradiate the human body.
[0031] An upward-looking mounting column 14 is provided on the mounting groove 12 opposite to the upward-looking camera 23, and the upward-looking camera 23 is installed in the mounting groove 12 through the upward-looking mounting column 14. An upward-looking channel 111 is provided on the mounting groove 12 opposite to the upward-looking camera 23, and the upward-looking camera 23 is illuminated toward the side away from the cover plate 40 through the upward-looking channel 111. The upward-looking mounting column 14 provides a stable mounting base for the upward-looking camera 23; when the upward-looking camera 23 is installed on the upward-looking mounting column 14, it can maintain a stable position in the mounting groove 12; this is because the mounting column can bear the weight of the camera itself and prevent the camera from shifting when the device is vibrated, collided or moved; for example, during the transportation of the data acquisition structure, even if the device is bumped, the camera installed on the upward-looking mounting column 14 can still remain in its original position, thereby ensuring that its performance is not affected; the upward-looking channel 111 provides an effective propagation path for the light emitted by the upward-looking camera 23; it allows the light to pass smoothly through the mounting groove 12 to the side away from the cover 40 (i.e., the collection area where the human body is located); the upward-looking channel 111 can minimize the loss of light during the propagation process and accurately illuminate the lower body area of the human body.
[0032] The parallel camera 21 is installed in the mounting groove 12. A parallel channel 112 is provided on the mounting groove 12 opposite to the parallel camera 21. The parallel camera 21 illuminates the side away from the cover plate 40 through the parallel channel 112. The parallel camera 21 is installed in the mounting groove 12, which provides a stable mounting position for the parallel camera 21. This ensures that the position of the parallel camera 21 is relatively fixed during the use of the device. This effectively prevents the camera position from being offset due to external factors such as device shaking and collision, thereby ensuring the stability and accuracy of data acquisition. The mounting groove 12 also serves as a physical protection. The mounting groove 12 can protect the parallel camera 21 from damage such as dust, moisture, and mechanical collision. For example, in a complex environment such as a factory workshop, there may be dust particles or small metal debris. The mounting groove 12 can prevent these foreign objects from entering the camera, thereby extending the service life of the camera.
[0033] The grating 24 is installed in the mounting groove 12. An illumination channel 113 is provided on the mounting groove 12 opposite to the grating 24. The grating 24 illuminates the side away from the cover plate 40 through the illumination channel 113. The grating 24 is installed in the mounting groove 12, which provides a stable installation environment for the grating 24; ensures that the grating 24 will not be easily displaced during the operation of the equipment; the grating 24 needs to maintain a precise position and angle during the data acquisition process; the structure of the mounting groove 12 can also position the grating 24; the grating 24 has specific position requirements in the human body three-dimensional data acquisition structure, and it needs to cooperate with each camera to accurately project a light pattern onto the human body surface; through the positioning of the mounting groove 12, the grating 24 can be installed according to the predetermined position and angle, so that the light pattern it projects can cover The target area of the human body is covered and matches the viewing angle of each camera, thereby ensuring the accuracy of data collection; the illumination channel 113 is the key channel for the grating 24 to project light; it allows the light emitted by the grating 24 to pass smoothly through the mounting groove 12 and be projected toward the side away from the cover plate 40 (i.e., the collection area where the human body is located); the shape and internal characteristics of the illumination channel 113 will affect the projection effect of the light; for example, the inner wall of the channel may have a high reflectivity material to reduce the loss of light during propagation, and can guide the light to a certain extent so that the light can be projected more concentratedly onto the human body.
[0034] There are three parallel cameras 21, which are arranged in a vertical array on the mounting frame 10. The three parallel cameras 21 are arranged in a vertical array on the mounting frame 10. This layout allows for photographing the side of the human body from different heights. Each parallel camera 21 has its own independent viewing angle. The top parallel camera 21 can capture side information of the higher part of the upper body (such as the part above the shoulders), including the side profile of the hair and the shape of the ears. The middle parallel camera 21 focuses on collecting side details of the human torso (such as the chest to waist), such as the curves of the body and the folds of clothing. The bottom parallel camera 21 is used to obtain side data of the lower part of the human body (such as the hips to the legs), such as the texture of the pants and the muscle contours of the legs. In this way, the three cameras work together to cover most of the side of the human body from the head to the legs, obtaining more comprehensive and rich information such as the side profile, texture, and color, thereby reducing blind spots in data collection.
[0035] Four gratings 24 are arranged in a vertical array on the mounting frame 10. This arrangement allows for layered projection of light patterns onto the human body in the vertical direction. Each grating 24 projects a light pattern (e.g., streak light) covering different height regions of the human body. The top grating 24 projects a light pattern primarily on the upper body, such as the shoulders and neck. The lower gratings 24 sequentially cover the chest, abdomen, buttocks, and upper thighs. Depth calculation is based on the following principles: when these light patterns are projected onto the human body's surface, they are deformed due to the unevenness of the surface. Cameras (e.g., the parallel camera 21, the downward-looking camera 22, and the upward-looking camera 23) capture images of the human body containing this light pattern deformation information. According to the geometric optics of light, the degree of light pattern deformation is related to the depth of the human body's surface. For example, if the stripe spacing in a certain area becomes narrower or the stripe shape becomes distorted under streak light projection, it can be inferred that the human body surface in that area is convex or concave relative to other areas.
[0036] The above merely represents the preferred technical solution of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the concept of the present invention, and the present invention is intended to encompass such modifications and variations.
Claims
1. A three-dimensional human body data acquisition structure, characterized in that: It includes a mounting frame and a collection component arranged on one side of the mounting frame; the collection component includes multiple parallel cameras arranged on one side of the mounting frame, a downward-looking camera arranged at the upper end of the parallel cameras, an upward-looking camera arranged at the lower end of the parallel cameras, and multiple gratings equidistantly arranged on the mounting frame; the downward-looking camera is arranged to tilt downward, and the upward-looking camera is arranged to tilt upward.
2. The human body three-dimensional data acquisition structure according to claim 1, characterized in that: The acquisition component also includes a light strip, which is arranged on the mounting frames on both sides of the parallel camera.
3. The human body three-dimensional data acquisition structure according to claim 2, characterized in that: Fixing grooves are provided on the mounting frames on both sides of the parallel cameras, and the light strips are installed in the fixing grooves.
4. The human body three-dimensional data acquisition structure according to claim 1, characterized in that: The human body three-dimensional data acquisition structure also includes a hinge, a cover plate and a locking assembly. The mounting frame on the side away from the acquisition assembly is provided with an installation slot, and the mounting frame on the side of the installation slot is connected to the cover plate rotating shaft through the hinge; the mounting frame away from the hinge and the cover plate are locked and connected by the locking assembly.
5. The human body three-dimensional data acquisition structure according to claim 4, characterized in that: A down-looking mounting column is provided on the mounting groove opposite to the down-looking camera, and the down-looking camera is installed in the mounting groove through the down-looking mounting column. A down-looking channel is provided on the mounting groove opposite to the down-looking camera, and the down-looking camera illuminates toward the side away from the cover plate through the down-looking channel.
6. The human body three-dimensional data acquisition structure according to claim 4, characterized in that: An upward-looking mounting column is provided on the mounting groove opposite to the upward-looking camera, and the upward-looking camera is installed in the mounting groove through the upward-looking mounting column. An upward-looking channel is provided on the mounting groove opposite to the upward-looking camera, and the upward-looking camera is illuminated toward the side away from the cover plate through the upward-looking channel.
7. The human body three-dimensional data acquisition structure according to claim 4, characterized in that: The parallel camera is installed in the installation groove. A parallel channel is provided on the installation groove opposite to the parallel camera. The parallel camera illuminates toward the side away from the cover plate through the parallel channel.
8. The human body three-dimensional data acquisition structure according to claim 4, characterized in that: The grating is installed in the installation groove, and an irradiation channel is provided on the installation groove opposite to the grating. The grating is irradiated toward a side away from the cover plate through the irradiation channel.
9. The human body three-dimensional data acquisition structure according to claim 1, characterized in that: There are three parallel cameras, and the three parallel cameras are arranged in a vertical array on the mounting frame.
10. The human body three-dimensional data acquisition structure according to claim 1, characterized in that: There are four gratings, and the gratings are arranged in a vertical array on the mounting frame.