CN113759640A

CN113759640A - Matrix photographing equipment applied to 3D forming processing and 3D forming modeling method

Info

Publication number: CN113759640A
Application number: CN202110934333.1A
Authority: CN
Inventors: 潘杰; 孙丽虹; 尹伟聪
Original assignee: Xingdong Zhineng Shanghai Information Technology Co ltd
Current assignee: Xingdong Zhineng Shanghai Information Technology Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2021-12-07

Abstract

The invention provides a matrix photographing device applied to 3D forming and processing and a 3D forming and modeling method, wherein the matrix photographing device comprises a plurality of L-shaped multi-angle photographing rods, the multi-angle photographing rods sequentially comprise a vertical photographing rod, an inclined photographing rod and a horizontal adjusting rod which is horizontally arranged from bottom to top, the horizontal adjusting rod is connected with a radial adjusting disc through a radial adjusting mechanism, the radial adjusting disc comprises an installation disc, and the installation disc is movably connected with an adjusting disc on the top surface through a rotating mechanism; the radial adjusting mechanism comprises a telescopic groove formed in the side wall of the mounting disc, a transverse adjusting rod is mounted in the telescopic groove, a transmission gear is sleeved on the outer side of the transverse adjusting rod in a threaded manner, an adjusting toothed ring is fixedly mounted on the bottom surface of the adjusting disc, and the transmission helical gear is meshed with the adjusting helical toothed ring. The invention can acquire the omnidirectional multi-angle photo information of animals or people at a certain moment and improve the modeling precision.

Description

Matrix photographing equipment applied to 3D forming processing and 3D forming modeling method

Technical Field

The invention relates to the technical field of matrix photographing modeling of 3D forming processing, in particular to matrix photographing equipment applied to 3D forming processing and a 3D forming modeling method.

Background

In the prior art, when modeling is performed on a small moving animal or a person with a large size, a user needs to shoot photos of multiple angles of the animal or the person manually, 3D modeling is performed according to the shot photos, but the animal can move around, the person can hardly keep the same action for a long time, and the user can hardly control the shot angles at different positions, so that the modeling time is long, and the model precision is low.

Disclosure of Invention

In view of this, the present invention provides a matrix photographing apparatus and a 3D modeling method applied to 3D modeling, which can acquire omnidirectional multi-angle photo information of an animal or a human at a certain time and improve modeling accuracy.

In order to solve the technical problems, the invention adopts the technical scheme that:

a matrix photographing device applied to 3D forming processing and a 3D forming modeling method comprise a plurality of L-shaped multi-angle photographing rods, wherein the multi-angle photographing rods sequentially comprise a vertical photographing rod, an inclined photographing rod and a horizontal adjusting rod horizontally arranged from bottom to top, the horizontal adjusting rod is connected with a radial adjusting disc through a radial adjusting mechanism, the radial adjusting disc comprises an installation disc, and the installation disc is movably connected with an adjusting disc on the top surface through a rotating mechanism;

the radial adjusting mechanism comprises a telescopic groove formed in the side wall of the mounting disc, a transverse adjusting rod is mounted in the telescopic groove, a transmission gear is sleeved on the outer side of the transverse adjusting rod in a threaded manner, an adjusting toothed ring is fixedly mounted on the bottom surface of the adjusting disc, and the transmission helical gear is meshed with the adjusting helical toothed ring.

Furthermore, slewing mechanism is including first bearing, first bearing inner bore fixed mounting has back shaft one end, the other end and regulation disc fixed connection, first bearing outer wall and installation disc fixed connection.

Furthermore, a plurality of photographic fixing mechanisms are arranged on the multi-angle photographic rod, and each photographic fixing mechanism comprises a supporting plate for mounting photographic equipment and a placing frame for mounting the supporting plate;

the utility model discloses a frame, including the frame, the backup pad is placed the frame, backup pad horizontal installation is in placing the frame, the backup pad including with place the angle pole of frame inner wall circular arc joint, angle pole one end is connected with the inclination adjustment mechanism who is used for adjusting backup pad inclination.

Furthermore, the inclination angle adjusting mechanism comprises a first transmission rod, one end of the first transmission rod is in transmission connection with the angle rod, the other end of the first transmission rod is fixedly connected with a first worm and gear mechanism capable of being reversely self-locked, and an output end of the first worm and gear mechanism is fixedly connected with an adjusting cap.

Furthermore, one end of the vertical photographing rod is fixedly connected with a rolling mechanism, and the other end of the vertical photographing rod is fixedly connected with the inclined photographing rod through threads.

Furthermore, the bottom end of the vertical photographing rod is fixedly connected with a rolling mechanism, the vertical photographing rod comprises an upper sleeve and a lower sleeve, one end of the upper sleeve is open, and the top end and the bottom end of the placing frame are fixedly provided with an upper scale rod and a lower scale rod;

the upper scale rod and the lower scale rod are respectively sleeved in the upper sleeve and the lower sleeve, the opening parts of the upper sleeve and the lower sleeve are respectively and movably provided with a lifting knob, and the upper scale rod and the lower scale rod are both in threaded connection with the lifting knob.

Furthermore, the supporting plate comprises a bottom plate fixedly connected with the angle rod, a top plate is fixedly installed on the top surface of the bottom plate, and an installation cavity is formed between the bottom plate and the top plate;

the movable mounting has the mounting in the installation cavity, the mounting is used for stretching out the roof setting with photographic equipment fixed connection's link, the transmission end external gearing of mounting has the regulation tooth, it stretches out the installation cavity setting to adjust the tooth part.

Furthermore, the inclined photographing rod is of an arc structure, and a photographing fixing mechanism with an inclined fixed angle is installed on the inclined photographing rod.

Further, the side wall of the adjusting disc is provided with a vertical scale for indicating the position of the photographic fixing mechanism, and the surface of the angle rod is provided with a horizontal scale for indicating the inclination angle of the photographic equipment.

Further, the method comprises the following steps: after the shooting positions and angles of all the photographic equipment are adjusted, all the image photos simultaneously acquired by all the photographic equipment are correspondingly acquired, and a track image packet is generated;

step two: extracting image features of the photos in the track image packet, generating a track feature packet, generating 3D point clouds by the plurality of track feature packets according to an SFM algorithm, and generating a three-dimensional model according to the 3D point clouds;

the track characteristic package comprises camera shooting information, the 3D forming modeling method is provided with a track checking strategy, the track checking strategy comprises the steps that the rotation centers of the plurality of photographic equipment are connected to generate a checking curve, the camera shooting information is checked according to the checking curve, and if the coincidence degree of the checking curve and the shooting track is larger than a first threshold value, the checking is successful.

The invention has the advantages and positive effects that:

through the multi-angle pole of installing a plurality of L shape at installation disc side wall mounting, install a plurality of adjustable inclination's camera on the multi-angle pole, can obtain the picture information of the different angles of object on same direction, the horizontal adjusting rod is installed to the top video of multi-angle pole, the lateral wall swing joint of horizontal adjusting rod and installation disc, make multi-angle pole and installation disc form a birdcage shape, can acquire animal or human at the omnidirectional multi-angle photo information of a certain moment, improve the accuracy of modelling.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall structure diagram of a matrix photographing apparatus and a 3D modeling method applied to 3D modeling according to the present invention;

FIG. 2 is a front sectional view of a matrix photographing apparatus and a 3D modeling method applied to 3D modeling according to the present invention;

FIG. 3 is an enlarged structural diagram of a radial adjusting mechanism of the matrix photographing device and the 3D modeling method applied to 3D modeling processing according to the present invention;

FIG. 4 is an enlarged schematic view of a rotational mechanism of a 3D modeling method and a matrix photographing apparatus applied to 3D modeling according to the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 6 is a left side view of a 3D modeling method and a matrix camera apparatus for 3D modeling according to the present invention;

FIG. 7 is an enlarged schematic view of the structure at B in FIG. 6;

in the figure: 1. adjusting the disc; 101. adjusting the gear ring; 2. installing a disc; 3. a multi-angle photographing pole; 301. A transverse adjusting rod; 302. tilting the photographing rod; 303. a vertical photographing pole; 3031. sleeving a sleeve; 3032. Setting a sleeve; 304. a lifting knob; 4. a photographic fixing mechanism; 401. placing the frame; 4011. an upper scale rod; 4012. a lower scale rod; 402. a support plate; 4021. an angle lever; 4022. a base plate; 4023. A top plate; 4024. a fixing member; 4025. adjusting teeth; 5. a rolling mechanism; 6. a radial adjustment mechanism; 601. a transmission gear; 602. a second bearing; 7. a rotating mechanism; 701. a first bearing; 702. a support shaft; 8. an inclination angle adjusting mechanism; 801. a first drive lever; 802. a first worm gear mechanism; 803. And adjusting the cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention provides a matrix photographing device applied to 3D forming and processing and a 3D forming and modeling method, as shown in figures 1 and 2, the matrix photographing device comprises a plurality of L-shaped multi-angle photographing rods 3, each multi-angle photographing rod 3 sequentially comprises a vertical photographing rod 303, an inclined photographing rod 302 and a horizontal adjusting rod 301 which is horizontally arranged from bottom to top, a photographing fixing mechanism 4 for fixedly mounting photographing equipment is mounted on each vertical photographing rod 303, and the photographing equipment comprises a camera. The camera is fixedly arranged on the vertical camera rod 303 through the camera fixing mechanism 4, so that the camera can conveniently shoot objects in the horizontal direction. The inclined photographing rod 302 has a ninety-degree circular arc structure, and the photographic fixing mechanism 4 is fixedly installed at a middle position of the inclined photographing rod 302, and the photographic fixing mechanism 4 on the inclined photographing rod 302 is arranged obliquely, preferably at an angle of forty-five degrees downward. The camera mounted on the oblique photographing rod 302 is also placed obliquely, and this angle on the oblique photographing rod 302 is suitable for modeling of photographing an object having a large number of complex structures on the top surface of the object.

As shown in fig. 5 and 7, the camera fixing mechanism 4 includes a support plate 402 for fixing the camera device, and the support plate 402 is movably mounted in the placement frame 401. The top end and the bottom end of the placing frame 401 are fixedly provided with an upper graduated rod 4011 and a lower graduated rod 4012, and the vertical photographing rod 303 comprises an upper sleeve 3031 and a lower sleeve 3032 with one end open. When the camera fixing mechanism is installed on the vertical photographing rod 303, only the upper graduated rod 4011 and the lower graduated rod 4012 need to be sleeved in the upper sleeve 3031 and the lower sleeve 3032 respectively.

The openings of the upper sleeve 3031 and the lower sleeve 3032 are movably provided with a lifting knob 304, the upper graduated rod 4011 and the lower graduated rod 4012 are in threaded connection with the lifting knob 304, and the position of the photographic fixing mechanism 4 can be adjusted by the lifting knob 304. If the height of the camera fixing mechanism 4 on the vertical camera rod 303 is adjusted, the lifting knob 304 on the lower sleeve 3032 can be rotated; if the height of the camera fixing mechanism 4 on the tilt camera lever 302 is adjusted, the lifting screw on the upper sleeve 3031 is rotated.

Go up the length direction of scale bar 4011 and lower scale bar 4012 and all be provided with the extension scale, the extension scale is used for representing the extension length of last scale bar 4011 and lower scale bar 4012, can confirm the height of taking a picture fixed establishment 4 according to the numerical value of last scale bar 4011 and lower scale bar 4012, and then predict the height of camera.

The transverse adjusting rod 301 is connected with the radial adjusting disc 1 through the radial adjusting mechanism 86, a plurality of multi-angle photographing rods 3 are circularly arranged below the radial adjusting disc 1, the radial adjusting disc 1 and the multi-angle photographing rods 3 form a birdcage shape, the radial adjusting disc 1 is connected with the matching length used for adjusting the transverse adjusting rod 301, the diameter of the birdcage is controlled, and objects with different sizes can be conveniently shot in the matrix photographing equipment.

As shown in fig. 4, the radial adjusting disk 1 includes a mounting disk 2, and the mounting disk 2 is movably connected with the adjusting disk 1 on the top surface through a rotating mechanism 7. The rotating mechanism 7 comprises a first bearing 701 fixedly installed on the top surface of the installation disc 2, one end of a support shaft 702 is fixedly installed in an inner hole of the first bearing 701, and the other end of the support shaft 702 is fixedly connected with the adjusting disc 1. So that the mounting disc 2 and the adjusting disc 1 can freely rotate relatively. Preferably, the support shaft 702 is selected from tapered roller bearings capable of withstanding large axial forces.

As shown in fig. 3, the radial adjusting mechanism 6 includes a plurality of telescopic slots formed on the side wall of the mounting disc 2, the telescopic slots are formed along the radial direction of the mounting disc 2, and a transverse adjusting rod 301 is movably mounted in the telescopic slots, so as to circularly arrange the multi-angle photographing rods 3 outside the mounting disc 2 and form a birdcage shape. Meanwhile, a transmission gear 601 is sleeved on the outer side of the transverse adjusting rod 301 in a threaded manner, and the transmission gear 601 is movably connected with the side wall of the telescopic groove through a second bearing 602, so that the transmission gear 601 can freely rotate on the transverse adjusting rod 301; the bottom surface of the adjusting disk 1 is coaxially and fixedly provided with an adjusting toothed ring 101, the transmission gear 601 is meshed with the adjusting toothed ring 101, the adjusting disk 1 can be rotated by rotating the adjusting disk 1, the transmission gear 601 is rotated by the adjusting toothed ring 101, the rotating length of the transmission gear 601 and the length of the transverse adjusting rod 301 are changed, and the diameter of the matrix photographing equipment is further changed. The matrix photographing equipment can photograph objects with different sizes on the premise of not influencing the photographing definition, and the modeling precision is guaranteed.

The side wall of the adjusting disc 1 is provided with vertical scales, and the vertical scales comprise two groups of numerical values, and the two groups of numerical values respectively represent the positions of the vertical photographing rod 303 and the inclined photographing rod 302 from the axis of the matrix photographing device of the photographing fixing mechanism 4, namely the radius of a circle surrounded by the photographing fixing mechanism 4.

The bottom end of the vertical photographing pole 303 is fixedly connected with a rolling mechanism 5, and preferably, the rolling mechanism 5 can be a universal wheel. When adjusting the radius of matrix equipment of shooing, make things convenient for a plurality of multi-angle photographing rod 3 radial movement simultaneously, also make things convenient for the transport and the bulk movement of matrix equipment of shooing simultaneously. The top end screw thread fixedly connected with slope camera pole 302 of vertical camera pole 303, and the thread groove is at the top of vertical camera pole 303 for slope camera pole 302 can directly revolve with lift knob 304 and sum, increase the change span of matrix camera equipment inner space.

As shown in fig. 5, the supporting plate 402 is horizontally installed in the placing frame 401, the supporting plate 402 includes an angle rod 4021 clamped with an arc of the inner wall of the placing frame 401, the angle rod 4021 is fixedly connected with a bottom plate 4022, a top plate 4023 is fixedly installed on the top surface of the bottom plate 4022, and an installation cavity is formed between the bottom plate 4022 and the top plate 4023; the fixing piece 4024 is movably installed in the installation cavity, the connecting end of the fixing piece 4024 extends out of the top plate 4023, and the connecting end of the fixing piece 4024 is fixedly connected with the photographic equipment. The transmission end of the fixing member 4024 is externally engaged with the adjusting teeth 4025, the adjusting teeth 4025 are movably clamped in the mounting cavity, the adjusting teeth 4025 partially extend out of the mounting cavity, the adjusting teeth 4025 are conveniently rotated outside the supporting plate 402, the connecting end of the fixing member 4024 is rotated, the connecting end is rotatably combined with the photographing device, and the photographing device is further fixed on the top surface of the top plate 4023.

The transmission of angle pole 4021 one end is connected with inclination adjustment mechanism 8, and inclination adjustment mechanism 8 is used for adjusting backup pad 402 inclination, and then adjusts camera shooting mechanism's shooting angle, and angle pole 4021 surface is provided with the horizontal scale, and the horizontal scale is used for showing camera device inclination.

As shown in fig. 6 and 7, the adjusting mechanism 8 includes a first transmission rod 801, one end of the first transmission rod 801 is in transmission connection with an angle rod 4021, the other end of the first transmission rod 801 is fixedly connected with a first worm and gear mechanism 802 capable of reverse self-locking, and an output end of the first worm and gear mechanism 802 is fixedly connected with an adjusting cap 803. When the angle of the photographing mechanism is adjusted, the adjusting cap 803 is rotated, the adjusting cap 803 rotates the first transmission rod 801 through the first worm gear 802, the first transmission rod 801 drives the angle rod 4021 to rotate, the inclination angle of the supporting plate 402 is changed, and the angle of the photographing device is adjusted.

The reverse self-locking of the first worm gear mechanism 802 is: the first worm gear mechanism 802 can be driven by the adjusting cap 803 to change the angle of the photographic apparatus, but when the angle of the photographic apparatus is determined, because the first worm gear mechanism 802 has the reverse self-locking performance, the angle rod 4021 cannot drive the first worm gear mechanism 802, so that the inclination angle of the photographic apparatus is fixed.

3D modeling method using a matrix camera (the following matrix camera is represented by a birdcage), taking modeling of dogs as an example: forward rotation adjusts disc 1, adjust tooth 4025 ring 101 and make drive gear 601 rotate, horizontal adjusting rod 301 stretches out the flexible groove, multi-angle photographing rod 3 removes along the direction of radius who adjusts disc 1, increase the distance between the multi-angle photographing rod 3, make things convenient for the dog to enter into the birdcage between the multi-angle photographing rod 3, after the dog entered into the birdcage, reverse rotation adjusts disc 1, adjust the distance of multi-angle photographing rod 3 to the dog, comprehensive clear picture of the different angles of shooting dog.

After the position of the multi-angle photographing pole 3 is determined, the upper sleeve 3031 and the lower sleeve 3032 are rotated to adjust the height of the camera fixing mechanism 4 on the vertical photographing pole 303 and the inclined photographing pole 302 (or roughly coarsely adjusted before the dog enters the birdcage, or finely adjusted according to the image on the display screen of the camera after the dog enters the birdcage). After the size of the birdcage is determined, the adjusting cap 803 is rotated to adjust the inclination angle of the camera on the photographic fixing mechanism 4, so that the camera can shoot more details of the dog, and the modeling precision is improved. After the inclination angle of the camera is determined, the adjusting cap 803 is released, and the camera cabinet is fixed at the position and does not act. After the birdcage is used for acquiring multi-angle picture information of the dog in the birdcage at a certain moment, the SFM algorithm is used for generating the 3D model, and the 3D model can be used for manufacturing dog dolls or pendants.

The 3D modeling process comprises the following steps: after the shooting positions and angles of all the photographic equipment are adjusted, all the image photos simultaneously acquired by all the photographic equipment are correspondingly acquired, and a track image packet is generated; the track image comprises camera shooting information which comprises the shooting height of the camera (estimated according to the height of the camera fixing mechanism 4), the inclination angle (the corresponding horizontal scale value on the angle rod 4021) when the camera shoots and the position of the camera (the position of the camera comprises the angle of the camera and the radius of a circle surrounded by the distance matrix shooting equipment, the radius of the circle surrounded by the distance matrix shooting equipment is determined by the vertical scale value corresponding to the side wall of the adjusting disc 1, the angle of the camera is determined by people, the 3-bit zero-angle end of a certain multi-angle shooting rod is determined, and the angles of the other angle rods 4021 are determined in sequence)

Step two: and extracting image features of the photos in the track image packet and generating a track feature packet. Specifically, focal length information in a plurality of images is extracted respectively, then image features are extracted by using an SIFT feature extraction algorithm, Euclidean distance between feature points of the two images is calculated by using a kd-tree model to match the feature points, so that image pairs with the feature point matching number meeting requirements are found, then an image track is formed for each image matching pair, epipolar geometry is calculated, and the intrinsic projective relation between the two images on the track is determined according to the epipolar geometry forming camera shooting information.

The method comprises the steps that 3D point clouds are generated by a plurality of track feature packages according to an SFM algorithm, a track verification strategy is configured in a 3D forming modeling method, the track verification strategy comprises the steps that a verification curve is generated according to the shooting height, the inclination angle and the position of shooting information of a plurality of cameras, the track verification strategy verifies the 3D point clouds according to the verification curve, if the coincidence degree of the verification curve and the shooting track is larger than a first threshold value, verification is successful, and a three-dimensional model is generated according to the generated 3D point clouds. If the contact ratio is smaller than the first threshold value, the position with the largest shooting track error is locally replaced by using a calibration curve, the calibration is carried out again after the replacement is completed until the calibration is successful, a three-dimensional model is generated according to the newly generated 3D point cloud, and the modeling time is shortened on the premise of improving the accuracy of the three-dimensional model.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The matrix photographing equipment applied to 3D forming processing is characterized by comprising a plurality of L-shaped multi-angle photographing rods (3), wherein each multi-angle photographing rod (3) sequentially comprises a vertical photographing rod (303), an inclined photographing rod (302) and a horizontally arranged transverse adjusting rod (301) from bottom to top, each transverse adjusting rod (301) is connected with a radial adjusting disc through a radial adjusting mechanism (6), each radial adjusting disc comprises a mounting disc (2), and each mounting disc (2) is movably connected with an adjusting disc (1) on the top surface through a rotating mechanism (7);

radial adjustment mechanism (6) are including offering the flexible groove on installation disc (2) lateral wall, install transverse adjusting rod (301) in the flexible inslot, drive gear (601) have been cup jointed to transverse adjusting rod (301) outside screw thread, adjust disc (1) bottom surface fixed mounting and have regulation ring gear (101), drive gear (601) and regulation ring gear (101) meshing.

2. The device for photographing the matrix applied to 3D forming processing is characterized in that the rotating mechanism (7) comprises a first bearing (701) fixedly installed on the top surface of the installation disc (2), one end of a supporting shaft (702) is fixedly installed in an inner hole of the first bearing (701), and the other end of the supporting shaft is fixedly connected with the adjusting disc (1).

3. The device for photographing the matrix applied to 3D forming processing is characterized in that a plurality of photographing fixing mechanisms (4) are installed on the multi-angle photographing rod (3), and each photographing fixing mechanism (4) comprises a supporting plate (402) for fixing the photographing device and a placing frame (401) for installing the supporting plate (402);

backup pad (402) horizontal installation is in placing frame (401), backup pad (402) including with angle pole (4021) of placing frame (401) inner wall circular arc joint, angle pole (4021) one end is connected with adjustment mechanism (8) that are used for adjusting backup pad (402) inclination.

4. The device for photographing the matrix applied to 3D forming machining is characterized in that the inclination angle adjusting mechanism (8) comprises a first transmission rod (801), one end of the first transmission rod (801) is in transmission connection with an angle rod (4021), the other end of the first transmission rod is fixedly connected with an input end of a first worm gear mechanism (802) capable of being reversely self-locked, and an output end of the first worm gear mechanism (802) is fixedly connected with an adjusting cap (803).

5. The device for taking pictures of a matrix applied to 3D forming processing and the 3D forming modeling method according to claim 1, wherein one end of the vertical photographing rod (303) is fixedly connected with the rolling mechanism (5), and the other end is fixedly connected with the inclined photographing rod (302) through screw threads.

6. The device for taking pictures of a matrix applied to 3D forming processing is characterized in that the vertical photographing rod (303) comprises an upper sleeve (3031) and a lower sleeve (3032) which are opened at one end, and an upper graduated rod (4011) and a lower graduated rod (4012) are fixedly arranged at the top end and the bottom end of the placing frame (401);

go up scale bar (4011) and lower scale bar (4012) and cup joint respectively in last sleeve pipe (3031) and lower sleeve pipe (3032), go up sleeve pipe (3031) and lower sleeve pipe (3032) opening part all movable mounting have lift knob (304), go up scale bar (4011) and lower scale bar (4012) all with lift knob (304) threaded connection.

7. The device for photographing the matrix applied to 3D forming processing is characterized in that the supporting plate (402) comprises a bottom plate (4022) fixedly connected with an angle rod (4021), a top plate (4023) is fixedly arranged on the top surface of the bottom plate (4022), and a mounting cavity is formed between the bottom plate (4022) and the top plate (4023);

the mounting cavity is internally and movably provided with a fixing piece (4024), one end of the fixing piece (4024) used for being connected with the photographic equipment extends out of the top plate (4023) and is provided with a regulating tooth (4025) in a meshed mode, and the part of the regulating tooth (4025) extends out of the mounting cavity.

8. The apparatus for taking pictures of matrix applied to 3D forming process according to claim 1, characterized in that the tilted photographing rod (302) is in a ninety-degree arc structure, and the tilted photographing rod (302) is mounted with a fixed-angle tilted photographing mechanism (4).

9. The device for photographing the matrix applied to 3D forming processing is characterized in that the side wall of the adjusting disc (1) is provided with a vertical scale for indicating the position of the camera fixing mechanism (4), and the surface of the angle rod (4021) is provided with a horizontal scale for indicating the inclination angle of the camera device.

10. A 3D modeling method for modeling based on the device for taking a picture of any one of the matrices of claims 1 to 9, comprising the steps of: after the shooting positions and angles of all the photographic equipment are adjusted, all the image photos simultaneously acquired by all the photographic equipment are correspondingly acquired, and a track image packet is generated;