Three-dimensional modeling device

Abstract

The utility model provides a three-dimensional modeling device. The three-dimensional modeling device comprises a support; the projector is arranged on the bracket and is used for emitting light rays; the reflecting lens is arranged on the bracket and is used for reflecting the light rays emitted by the projector to a measured object; and the first camera is arranged on the bracket and is used for shooting the measured object. According to the utility model, the projection distance is increased through mirror reflection, so that the purpose of increasing the projection area is achieved, the overall size of equipment is reduced, and the use convenience and flexibility are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to camera technology field, especially relate to a three -dimensional modeling device. BACKGROUND

[0002] In the current human face three -dimensional reconstruction, adopting projector structured light technology is a main means. Its typical practice is to fix the projector on the support, the specific light information is projected to the target (such as human face) and its background by projector, then the change signal that the projected light forms on the target surface is collected by camera. The analysis of these light signal changes can calculate the position and depth of the target, and realize the reconstruction of the spatial three -dimensional structure.

[0003] However, the projector on the market is usually not designed for structured light technology. When the projector is needed to be used for three -dimensional reconstruction of human face, it is often only selected directly from the existing mass-produced projectors. Because these projectors have fixed parameter configurations, the "projection ratio" is a key performance indicator.

[0004] The human face has fixed length and width, to meet the sufficient projection area, under the premise of certain projection ratio, only the distance between the projector and the target can be increased to realize the expansion of the projection area. However, increasing the projection distance inevitably leads to the increase of the overall volume of the equipment, not only makes the system appear cumbersome, but also reduces the portability and flexibility of use. INVENTION CONTENT

[0005] The utility model aims at providing a three -dimensional modeling device, which uses mirror reflection to increase the projection distance, so as to achieve the purpose of increasing the projection area, reduce the overall volume of the equipment, and improve the convenience and flexibility of use.

[0006] The utility model is realized through the following technical solutions:

[0007] A three -dimensional modeling device, comprising:

[0008] A support;

[0009] A projector, which is arranged on the support and is used for emitting light;

[0010] A reflecting lens, which is arranged on the support and is used for reflecting the light emitted by the projector to the measured object;

[0011] A first camera, which is arranged on the support and is used for shooting the measured object.

[0012] Further, a second camera for shooting the measured object is further included, the second camera is arranged on the support, and the shooting angle of the second camera is different from that of the first camera.

[0013] Further, the bracket comprises a horizontal section, an arc section and a vertical section connected in sequence, the projector is arranged on the horizontal section, the reflecting mirror and the first camera are arranged on the vertical section, and the first camera is located above the reflecting mirror, and the second camera is located on the side of the projector away from the arc section and arranged on the horizontal section.

[0014] Further, the bracket is provided with a first inclination mechanism for adjusting the inclination angle of the projector, and the bracket is provided with a second inclination mechanism for adjusting the inclination angle of the reflecting mirror.

[0015] Further, the reflecting mirror is provided with light extinction baffles on both sides.

[0016] Further, the reflecting mirror is provided with a reflecting area and a light extinction area, and the light extinction area is provided with a light extinction layer.

[0017] Further, the bracket is provided with a mounting seat, and the reflecting mirror is arranged on the mounting seat.

[0018] Further, the projector is an infrared projector.

[0019] Compared with the prior art, the projector and the reflecting mirror are fixed on the bracket at a certain angle, the light emitted by the projector reaches the reflecting mirror, and the projection light is fully reflected in the form of total reflection, so that the projection distance is equal to the distance from the light emitted by the projector to the reflecting mirror plus the distance from the reflected light to the measured object. Since the light emitted by the projector has a certain projection ratio, which is the ratio of the projection area to the projection distance, the projection distance is increased due to the reflection of the reflecting mirror, and under the condition that the projection ratio parameter is fixed, the projection area also increases, thereby achieving the purpose of increasing the projection area, and the overall volume of the equipment can be reduced, and the convenience and flexibility of use can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a side view of the three-dimensional modeling device of the utility model;

[0021] Figure 2 It is a structure schematic view of the three-dimensional modeling device of the utility model.

[0022] In the figure, 1 is a bracket, 11 is a horizontal section, 12 is an arc section, 13 is a vertical section, 2 is a projector, 3 is a reflecting mirror, 31 is a reflecting area, 32 is a light extinction layer, 4 is a first camera, 5 is a second camera, 6 is a light extinction baffle, 7 is a mounting seat, and 8 is a measured object. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0024] 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 those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0025] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the utility model, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the utility model, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it should be noted that the terms "upper", "lower", "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, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as limiting the utility model.

[0028] Please refer to Figure 1 , Figure 1The utility model discloses three -dimensional modeling device's side view. A three -dimensional modeling device, including support 1, projector 2, reflecting mirror piece 3 and first camera 4, projector 2 sets up on support 1, for sending light, reflecting mirror piece 3 sets up on support 1, for the light that projector 2 sends is reflected to measured object 8, and first camera 4 sets up on support 1, for shooting measured object 8.

[0029] The utility model discloses three -dimensional modeling device when using, with reflecting mirror piece 3 with certain angle fixed on support 1, the light that projector 2 sends reaches reflecting mirror piece 3, with total reflection's form will project light all reflect, reach the predetermined light spot stripe that forms on measured object 8. Such projector 2's projection distance is equal to the distance of the light that projector 2 sends reaches reflecting mirror piece 3 plus the distance of reflected light reaches measured object 8, because the light that projector 2 sends has certain projection ratio, it is the ratio of projection area and projection distance, now the projection distance of projection light is increased because of reflecting mirror piece 3's reflection, under the condition that this parameter of projection ratio is fixed, projection area also increases along with it, to reach the purpose of increasing projection area, can reduce the overall volume of equipment simultaneously, improve the convenience and flexibility of use.

[0030] In an embodiment, further comprising a second camera 5 for shooting measured object 8, the second camera 5 is arranged on the support 1, and the shooting angle of the second camera 5 is different from that of the first camera 4. The first camera 4 and the second camera 5 constitute a binocular camera, and the depth information of the measured object 8 can be obtained, so that three-dimensional reconstruction and depth perception are realized.

[0031] In an embodiment, the support 1 comprises a horizontal segment 11, an arc segment 12 and a vertical segment 13 connected in sequence, the projector 2 is arranged on the horizontal segment 11, the reflecting mirror piece 3 and the first camera 4 are arranged on the vertical segment 13, and the first camera 4 is located above the reflecting mirror piece 3, and the second camera 5 is located on the side away from the arc segment 12 of the projector 2 and arranged on the horizontal segment 11. The support 1 is in an L shape, and the second camera 5, the projector 2, the reflecting mirror piece 3 and the second camera 5 are arranged on the support 1 in sequence, so that the overall volume of the equipment can be reduced.

[0032] In an embodiment, the support 1 is provided with a first inclination mechanism for adjusting the inclination angle of the projector 2, and the support 1 is provided with a second inclination mechanism for adjusting the inclination angle of the reflecting mirror piece 3. The inclination angles of the projector 2 and the reflecting mirror piece 3 are adjusted through the first inclination mechanism and the second inclination mechanism respectively, so that the projection direction of the projection light is changed, and the flexibility in use is increased.

[0033] Please refer to Figure 2 , Figure 2The utility model discloses a three-dimensional modeling device's structure schematic view (not shown second camera in the drawing). In an embodiment, the reflection lens 3 both sides are equipped with the light absorption baffle 6. Because the light of projector 2 is with certain scattering, therefore increases the light absorption baffle 6 and shields processing on the left and right sides of reflection lens 3, avoids the light spot stripe that gathers to be interfered with stray light. Further, reflection lens 3 is equipped with reflection area 31 and light absorption area, and is equipped with light absorption layer 32 on light absorption area. The light absorption layer 32 is arranged outside the reflection area 31 of reflection mirror surface, carries out certain light absorption processing, can further avoid the light spot stripe that gathers to be interfered with stray light. Simultaneously because the projection proportion of projector 2 and the length-width proportion of human face do not match completely, to improve the imaging efficiency of face area, uses the principle of partial reflection, guides the projection light to cover only the necessary area of face. That is to say, the light of projector 2 is after reflection area 31 processing of reflection lens 3, partial reflection, forms the area light of human face, this can avoid the extra reflection light into first camera 4 and second camera 5, reduces irrelevant information interference, thereby improves the effective collection rate of light spot and stripe data. Light absorption layer 32 is formed by coating light absorption paint on light absorption area. To prevent the light from producing secondary or multiple reflection in glass and forming stray light, reflection lens 3 adopts the front surface reflection design. This design can minimize ghosting or stray light interference, improve projection quality and overall imaging accuracy.

[0034] In an embodiment, the bracket 1 is provided with a mounting seat 7, and the reflection lens 3 is arranged on the mounting seat 7. The arrangement facilitates the installation and replacement of the reflection lens 3.

[0035] In an embodiment, the projector 2 is an infrared projector. An infrared light with a wavelength of about 850 nm can be used as the emission source of the projector 2. This wavelength is not sensitive to the human eye, which can effectively avoid visual irritation and discomfort, and ensure safety and comfort.

[0036] The above description is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, without departing from the technical scheme of the utility model, still belongs to the scope of the technical scheme of the utility model.

Claims

1. A three-dimensional modeling device, characterized by, The utility model relates to a kind of stereoscopic imaging device, including: Supporter; Projector, which is arranged on the support, is used to emit light rays; Reflective lens, which is arranged on the support, is used to reflect the light rays emitted by the projector to the measured object; First camera, which is arranged on the support, is used to take pictures of the measured object.

2. The three-dimensional modeling device of claim 1, wherein, It also includes a second camera for taking pictures of the measured object, which is arranged on the support, and the shooting angle of the second camera is different from that of the first camera.

3. The three-dimensional modeling device of claim 2, wherein, The support includes a horizontal segment, an arc segment and a vertical segment connected in sequence, the projector is arranged on the horizontal segment, the reflective lens and the first camera are arranged on the vertical segment, and the first camera is located above the reflective lens, and the second camera is located on the side away from the arc segment of the projector and is arranged on the horizontal segment.

4. The three-dimensional modeling device of claim 1, wherein, The support is provided with a first tilting mechanism for adjusting the inclination angle of the projector, and the support is provided with a second tilting mechanism for adjusting the inclination angle of the reflective lens.

5. The three-dimensional modeling device of claim 1, wherein, The reflective lens is provided with light-absorbing baffles on both sides.

6. The three-dimensional modeling apparatus according to claim 5, wherein The reflective lens is provided with a reflective area and a light-absorbing area, and the light-absorbing area is provided with a light-absorbing layer.

7. The three-dimensional modeling apparatus of claim 1, wherein The support is provided with a mounting seat, and the reflective lens is arranged on the mounting seat.

8. The three-dimensional modeling device of claim 1, wherein, The projector is an infrared projector.

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