WO2017015688A1

WO2017015688A1 - Image capturing booth

Info

Publication number: WO2017015688A1
Application number: PCT/AT2016/060016
Authority: WO
Inventors: Georg HOFHERR; Manuel BÜRGLER
Original assignee: 3D Elements Gmbh
Priority date: 2015-07-27
Filing date: 2016-07-25
Publication date: 2017-02-02
Also published as: EP3329328A1; AT517565A1; AT517565B1

Abstract

The invention relates to an image capturing booth for generating three-dimensional images (6a) of persons (6) or objects, comprising an interior (1a), which is surrounded by lateral walls (2), multiple lighting units (20), which are arranged in the region of the lateral walls (2), and camera units (8), which are connected to an electronic analysis and supply device (9). The image capturing booth (1) can be erected on a support surface (5), preferably a flat support surface, in particular according to one of the claims 1 to 21. At least one auxiliary support (18) is provided which is mounted in a pivotal manner about a first axis (z), preferably a vertical axis, and on which two or more mountings (28) for the optical components (8a) of the camera units (8) are mounted at a distance from one another in a pivotal manner about a second axis (x), preferably a horizontal axis, oriented transversely to the first axis (z).

Description

recording booth

The invention relates to a receiving cabin for generating three-dimensional images of persons or objects with an interior space surrounded by side walls and a plurality of illumination units and camera units arranged in the region of the side walls, which are connected to an electronic evaluation and supply device, wherein the receiving cabin is supported on a - preferably level - Contact area is erectable.

Such receiving cabins are already known. They are used in particular as a photo studio for 3D photography. It is possible, for example, to photograph persons or objects photographically and then to produce a 3D miniature figure via a 3D printer.

In the context of a digital photogrammetry, two-dimensional images, which are combined in an electronic evaluation and supply device into a three-dimensional volume model, take place via a multiplicity of cameras which are arranged distributed in the receiving cabin. This can still be edited by hand before finally printing on a 3D printer. The figures that are ultimately made, for example, may consist of a polymer-gypsum composite material. When it comes to depicting people, it's called "3D Selfie."

In the present invention, it is mainly about the formation of a suitable receiving cabin.

The object of the invention is to provide a compact and robust receiving cabin, which is preferably mobile erectable, the setting should also be easily possible from numerous cameras.

According to the invention, this is achieved by providing at least one auxiliary carrier pivotally mounted about a first - preferably vertical - axis, at which two or more holders for the optical components of the camera units are spaced from each other are each pivotally mounted about a transversely oriented to the first axis - preferably horizontal - second axis.

By arranging a plurality of cameras on a common subcarrier, the same can be aligned about a first axis. From there, it is easier and more well-defined to align the cameras in the other direction (axis transverse to the first axis). Ultimately, it is about capturing the interior of the receiving cabin or its central receiving area imagewise completely. The construction according to the invention will be carried out essentially along the side walls and preferably arrange a plurality of such auxiliary carriers. Also in the area of the ceiling, it is possible to arrange some such subcarriers, each carrying one or more cameras.

In the area of the floor, it is better to set the cameras individually, since other considerations are more important here, namely the protection of the cameras on the ground from accidental entry. Here it is better to sink the cameras in the floor, which is preferably raised, and to cover the cameras with a transparent cover.

If the receiving cabin is preferably formed from profile tubes, it is advantageous to also form the subcarriers of profile tubes and to arrange parallel to the uprights of the main frame on the inside of the cabin. These rod-shaped or tubular auxiliary carriers can then be connected rotatably about a vertical axis to the uprights and be fixable in the adjustment position by screws or the like.

For holding the individual cameras, it is advantageous if the holders for the optical components of the camera units each have a U-shaped angle, wherein the optical component - preferably a lens and an image sensor - each in the region of - preferably provided with an opening - U-web is arranged, and wherein the subcarrier lies between the two U-legs, which are pivotally mounted on the subcarrier. With such a design can be achieved by simple mechanical means of a U-shaped bent Wnkels a good adjustable mounting small cameras. Further advantages and details of the present invention will be explained in more detail with reference to the following description of the figures. Show: Fig. 1 is a schematic representation of a system for the manufacture of

3D miniature figures with an exemplary embodiment of a highly schematic receiving cabin according to the invention,

Fig. 2, the support framework of an embodiment of an inventive

Recording booth,

Fig. 3. the same framework with inserted raised floor and on the

Interior of the vertical uprights arranged subcarrier for camera units not shown here,

4 shows an embodiment of the floor,

5 shows a schematic vertical section of a further embodiment of a receiving cabin according to the invention,

6 is a detail of FIG. 5 in a likewise vertically guided section,

7 perspective cutouts in the lower region of an embodiment of a receiving cabin according to the invention,

8 is a perspective side view of part of the side wall of a

Embodiment of a side cabin according to the invention,

9 is a schematic perspective view of the ceiling of a

Embodiment of a receiving cabin according to the invention. In the system shown in Figure 1, an embodiment of a receiving cabin according to the invention for generating three-dimensional images of persons or objects is shown schematically. The receiving cabin 1 has side walls 2, a ceiling 3 and a floor 4, which is arranged at a distance d above a footprint 5 (for example, a floor of a shopping center). The male person 6 is thus slightly increased. Below the floor 4, a cavity 6 is formed in which, for example, a distributor 7 is arranged for lines not shown. However, it is also possible for other multiple lines, which lead to a large number of lighting units, not shown in greater detail, or to the camera units 8 shown schematically, to be arranged underneath the floor 4. The camera units 8 are shown here only schematically. However, they are arranged not only in the side walls 2, but also in the ceiling 3 and in the floor 4, in order to allow a good all-round recording of the person to be imaged or an object to be imaged, so that ultimately a three-dimensional volume model with still unprocessed data (raw data ) can be created. The electronic evaluation and supply device 9 is preferably arranged outside the receiving cabin 1. Basically, it would also be integrated with sufficient space. The evaluation and supply device 9 supplies the camera units with power, preferably via a Power-Over-Ethernet cabling, and also receives the data of the recorded photos via the same connection. At the same time, the evaluation and supply device 9 can control the lighting units not shown in detail in FIG. 1 and supply them with power.

The three-dimensional raw data can then be outsourced via the Internet, for example, to an external workstation 10, where they are then reworked, for example, by means of suitable image processing programs, before they are finally printed out via a 3D printer 11. In the illustrated embodiment in Figure 1 is obtained as a result, a miniature figure 6a of the person shown 6, for example, 10 to 20 cm tall and numerous details including colors of the original figure reflects. Depending on the 3D printer of course, larger and smaller figures can be produced.

In the embodiment according to FIG. 1, all cameras 8 at the same time record their images, so that even moving or restless motifs can be safely picked up. This was not the case with previous laser scanning methods. Here, the person had to stand still until the complete scanning (scanning) in the interior 1a.

FIG. 2 shows the support frame of an exemplary embodiment of a receiving cabin according to the invention. This support frame has a plurality of vertically spaced uprights 12, which are connected to each other via a ceiling ring 13, a bottom ring and a center ring 15 to a stable construction. The connection may preferably be made detachable, for example, the uprights and said rings may be formed of profile tubes having undercut grooves into which sliding blocks can be inserted, via which then finally the connection takes place. A generally designated 16 door element allows access to the interior 1 a of the receiving cabin. 1

Ceiling elements 17 supplement the cabin in the ceiling area. FIG. 3 now shows the primary support structure of FIG. 2, supplemented by the raised floor 4 with its upper side 4a. In addition, Figure 3 shows parallel to the profiles or uprights of the support frame arranged, the interior facing subcarrier 18, the Serve recording of parts of the camera units and which are arranged relative to the primary construction of Figure 2 adjustable. This will be explained in more detail with reference to the following figure. First, the bottom structure will be described with reference to FIG.

In the embodiment shown in Figure 4, the floor 4 is laterally fixed to each other via a plurality of plates together to form a flat floor. This facilitates the construction and transport when it comes to a mobile receiving cabin. The floor 4 or its upper side 4a is held at a distance d above the footprint 5. For this purpose, visible, height-adjustable feet 19 can be provided in FIG.

One of the connected for example via a tongue and groove connection plates is designed as a ramp 4b, which leads from the level of the footprint 5 obliquely upwards to the top 4a of the otherwise flat floor 4. Below the floor 4, a cavity 6 is formed, which is particularly well visible in the figures 1 and 5.

This cavity allows on the one hand to accommodate lines 7a or 7 distribution. It also makes it possible to accommodate camera units 8 (smaller circles in Figure 4) and lighting units 20 (larger circles in Figure 4) in the area of the floor 4, and thus those objects that are in the central area 4c, to illuminate from below and via the camera units 8. The camera units 8 and the lighting units 20 can extend into the cavity 6 both in the region of the plate thickness of the floor 4 and even below it. In any case, it is favorable if both the camera units 8 and the lighting units 20 are provided at the top with a transparent cover 21 which is substantially flush with the top 4a of the floor 4. As a result, both the camera units 8 and the lighting units 20 can be arranged protected. In a reinforced version, they can even be accessible. This is particularly important when the receiving cabin according to the invention is free, for example, in a shopping center, and no operator is present. Even against vandalism offer such covers 21 good protection.

For assembly and maintenance purposes, the floor 4 has a maintenance hatch 4c, which at the same time marks the middle area of the floor in which the person to be picked up or the object to be picked up is to be arranged. The maintenance hatch 4c is - as shown in FIG. 5 - pivotable about a horizontal axis 22 in the direction of the arrow 23 and can be held in the raised position by a gas spring 24. About the maintenance hatch then the cavity 6 below the floor 4 is accessible. The maintenance hatch is advantageously arranged in the middle region of the floor 4 and designed to be accessible. It can - as mentioned - also mark the recording area.

The camera units 8 and illumination units 20 shown in FIG. 4 are arranged in particular in the vicinity of the edge of the maintenance hatch 4c in order to be able to easily come in for maintenance work.

As FIG. 5 shows, the camera units 8 are arranged not only in the region of the side walls 2 and the bottom 4, but also in the area of the ceiling 3 in order to achieve an overall reception of the person 6 or an object to be imaged.

In Figures 5 and 6, further details, in particular with regard to the adjustability of the orientation of the camera units 8, as well as the bivalve structure of the receiving cabin will now be described. In the exemplary embodiment illustrated in FIGS. 5 and 6, the side walls and the top wall are double-shelled, with at least parts of the lighting units 20 and / or at least parts of the camera units 8 between the outer shell 25 and the inner shell 26 (later on with reference to FIG ) are arranged. The wiring with the electronic evaluation and supply device 9 can run between outer shell 2 and inner shell 26 (the wiring is not shown for clarity).

The accommodation of parts of the camera units (see later Figure 7), and the lighting units 20 (see Figure 5 and 6) between outer shell 25 and inner shell 26 provides a space-saving and visually appealing way to accommodate these components. They are also protected against vandalism and damage.

Particularly preferred is an embodiment in which the outer shell 25 consists of an opaque fabric fabric. This allows the inner cabin completely separate from the outside world, so that the male person 6 can move freely and unobserved. Differently formed is the inner shell. It has a translucent Fabric covering on. This makes it possible for the lighting devices 20 to illuminate the interior in the sense of the larger arrows in FIGS. 5 and 6, without themselves being perceptible as lights. Together with the formation of the lighting units as a plate-shaped surface radiator (preferably with LED light sources), this results in a bright, yet glare-free illumination of the entire interior 1 a.

Structurally, the vertical uprights 12, as well as the ceiling joists 17 may be formed of profile tubes having undercut grooves, in which not shown but known sliding blocks can be used for connecting. The aforementioned fabric coverings 25 and 26 for the outer and inner shell can be inserted and held in these grooves via suitable Kederverbindungen. Such Nutkederverbindungen are known per se and therefore need not be described in detail here. About the above construction, the receiving cabin can be easily mobilized and disassemble if necessary.

If particularly stable embodiments are required, the fabric coverings can also be replaced by dimensionally stable plates.

The setting of the cameras will now be described in more detail with reference to FIGS. 5, 6 and in particular FIG. For the adjustable movable mounting of the cameras is on the vertical uprights 12 of the support frame on the inner side 1 a side facing each support 12 an auxiliary support 18 is provided, which is preferably arranged parallel to the uprights. This subcarrier 18 is advantageously also made of profile tubes, which have suitable for receiving sliding blocks, undercut grooves 27.

The subcarriers 18 are - as in particular the figure 7 shows - about a vertical axis Z pivotally mounted on the uprights 12, for example via suitable mounting bracket 31, which in turn are arranged for example on sliding blocks or the like in suitable receptacles of the vertical uprights. For example, six superimposed camera units 8 are fastened to one and the same auxiliary carrier 18 and thus can be adjusted together in their alignment about the Z axis. Once the adjustment has been made, the adjustment can be fixed for example via clamping screws or the like. Regardless of this adjustment about the Z-axis, the individual camera units 8, or more precisely their optical components 8a and 8b (8a lens, 8b photosensor / CCD chip), via a holder 28 relative to the subcarrier 18 by a transverse to Z Axis extending X- Axis pivoted and in the pivot position, for example, by tightening suitable screws or nuts adjustable and fixable.

The holders 28 for the optical components 8a and 8b of the camera units 8 each consist of U-shaped bent angles 29 (see FIG. 7). In which the two U-legs 29b connecting U-web 29a, an opening is provided, in which the lens 8a can be fastened. At the rear of the U-bridge of the image sensor 8b is arranged. These components are very small and thus space-saving housings. The construction is particularly compact if you use a fixed lens with a fixed focal length and fixed focus. In contrast to the use of more complicated cameras, such as autofocus SLR cameras, one can achieve here a lightweight and compact design, which makes it possible to record the object to be recorded 6 from various positions and thus to achieve a complete 3D volume model of the data. Also in terms of cost, such simple cameras are cheap. This is especially important, considering that a total of 50 to more than 100 cameras can be used in the order of magnitude.

The camera units 8 then also have a conditioning circuit 8c which is connected to the optical components 8a and 8b via a ribbon cable 32. This conditioning circuit 8c may be housed between the outer and inner shells 25, 26. The ribbon cable 32 may be guided through small recesses of the inner shell 26.

Particularly favorable as far as the wiring is concerned (especially considering the high number of cameras) is a cabling that simultaneously allows power and data transport. Such may be, for example, a POE (Power-Over-Ethernet) cabling 30. Via a POE splitter 33, both the power supply 34 and the data transport 35 can be made with the processing unit 8c of the camera units.

In particular, camera modules of the type "Raspberry PI" can be used as camera units, which are available at low cost and whose sensor, for example with 5 megapixels, is easily enough to achieve the required quality.

FIG. 8 once again shows a section of the side wall (without outer and inner shell 25, 26) in the region of the door. The lighting units 20 are LED surface spotlights. The electronic components (conditioning circuit 8c) of the camera units 8, as well as the POE splitter 33 are shown schematically. They lie in the installed state between the outer and inner shell. The ceiling shown in Figure 9 is substantially the same structure as the side walls. Only everything is rotated by 90 °. There are again main carrier 17, which correspond to the uprights 12 of the side wall. On these main beams 17 are rotatable about a longitudinal axis, adjustable and fixable subcarrier 18 which carry one to three camera units 8 (more precisely, their optical components 8a and 8b), in each case again via U-shaped angle 29, as shown in FIG are shown.

The illustrated embodiment of the cabin according to the invention has in plan view on a deviating from the circular plan, wherein preferably two opposite, planar side wall sections are each assembled over curved side wall portions to a total closed side wall.

The overall non-circular shape makes it possible to have the camera distances to the mostly central object 6 variable. This has advantages in terms of the fullest possible recording of all details.

Claims

claims

Recording cabin for generating three-dimensional images (6a) of persons (6) or objects with an interior (1a) surrounded by side walls (2) and a plurality of illumination units (20) arranged in the region of the side walls (2) and camera units (8) an electronic evaluation and supply device (9) are connected, wherein the receiving cabin (1) on a - preferably flat - contact surface (5) can be set up, in particular according to one of claims 1 to 21, characterized in that at least one by a first - preferably vertical axis (z) pivotally mounted subcarrier (18) is provided, on which two or more holders (28) for the optical components (8a) of the camera units (8) spaced from each other by a transverse to the first axis (z) aligned - preferably horizontal - second axis (x) are pivotally mounted.

Receiving cabin according to claim 1, characterized in that the at least one auxiliary carrier (18) and the holders (28) after adjustment in their pivotal position - for example by clamping screws - are fixable.

Receiving cabin according to claim 1 or 2, characterized in that the auxiliary carrier (28) are formed from profile tubes, which preferably have for receiving of sliding blocks, undercut grooves.

Receiving cabin one of claims 1 to 3, characterized in that the auxiliary carrier (28) are arranged parallel to stanchions (12) on the inside of the cabin.

Receiving cabin according to one of claims 1 to 4, characterized in that the holders (28) for the optical components (8a) of the camera units (8) each have a U-shaped angle (29), wherein the optical component (8a, 8b ) - preferably a lens (8a) and an image sensor (8b) - each in the region of - preferably provided with an opening - U-web (29a) is arranged, and wherein the auxiliary carrier (18) between the two U-legs (29b ), which are pivotally mounted on the auxiliary carrier (18).

Recording cabin according to one of claims 1 to 5, characterized in that the camera units (8) for power supply and data exchange via a power-over-Ethernet cabling (30) with an evaluation and supply device (9) are connected.

Recording cabin according to one of claims 1 to 6, characterized in that the receiving cabin (1) has a deviating from the circular plan in plan view, wherein preferably two opposite planar side wall sections each have curved side wall sections to one - except for an access door - a total closed side wall are composed.

Recording cabin (1) for generating three-dimensional images (6a) of persons (6) or objects with an interior (1a) surrounded by side walls (2) and a plurality of illumination units (20) and camera units (8) arranged in the region of the side walls (2) , which are connected to an electronic evaluation and supply device (9), wherein the receiving cabin (1) on a - preferably flat - contact surface (5) can be set up, in particular according to one of claims 1 to 7, characterized in that the receiving cabin ( 1) has a floor (4) which is held at a distance (d) from the footprint (5).

9. receiving cabin according to claim 8, characterized in that between the floor (4) and the footprint (5) has a cavity (6) for receiving with the camera units (8) and lighting units (20) connected electrical lines (7a) is formed ,

10. receiving cabin according to claim 8 or 9, characterized in that in the floor

(4) or an underlying cavity (6) camera units (8) and / or lighting units (20) are arranged.

1 1. receiving booth according to claim 10, characterized in that the camera units (8) and / or lighting units (20) to the top (4a) of the floor (4) out with - preferably with the top (4a) of the floor (4) in Substantially flush final - transparent covers (21) are covered.

12. receiving cabin according to one of claims 8 to 1 1, characterized in that the floor (4) consists of one or more - preferably multi-layered - plates, which - preferably height adjustable feet (19) - on the footprint

(5) are supported.

13. receiving cabin according to claim 12, characterized in that a plurality of plates are laterally fixed to each other to a flat floor (4), preferably a plate as one of the level of the footprint (5) obliquely upward to the top (4a) of the other flat floor (4) hinführführende ramp (4b) is formed.

14. receiving cabin according to one of claims 8 to 13, characterized in that in the floor (4) one - preferably swung up about a horizontal axis -

Maintenance hatch (4c) is arranged, via which a cavity (6) below the floor (4) is accessible.

15. receiving cabin according to claim 14, characterized in that the maintenance hatch (4c) in a - seen from above - middle portion of the floor is arranged and is formed accessible.

16. receiving cabin according to claim 14 or 15, characterized in that arranged in the region of the floor (4) camera units (8) and / or lighting units (20) in the vicinity of the edge of the maintenance hatch (4c) receiving bottom opening are arranged.

17 receiving cabin according to one of claims 1 to 16, characterized in that the receiving cabin (1) comprises a ceiling (3), are arranged on the camera units (8) and / or lighting units (20).

18. receiving cabin (1) for generating three-dimensional images (6a) of persons (6) or objects with an interior wall (1 a) surrounded by side walls (2) and a plurality of lighting units (20) and camera units arranged in the region of the side walls (2) 8), with an electronic evaluation and supply device

(9) are connected, wherein the receiving cabin (1) on a - preferably flat - contact surface (5) can be set up, in particular according to one of claims 1 to 17, characterized in that the side walls (2) and preferably an optionally existing ceiling wall (3 ) are formed bivalves, wherein between the outer shell (25) and the inner shell (26) at least parts of the lighting units (20) and / or at least parts (8a) of the camera units (8) and their wiring to the electronic evaluation and supply device (9) are arranged.

19 receiving cabin according to claim 18, characterized in that the camera units (8) are designed at least in two parts, wherein a first part (8a, 8b) is an optical lens

(8a), preferably having a fixed focal length and focus lens, and an image sensor, and wherein a second part (8c) comprises an electronic circuit for providing electronic image data.

20. receiving cabin according to claim 19, characterized in that the second part (8c) of the camera units (8) between each of the outer (25) and inner (26) shell is arranged, while the first part (8a, 8b) of the shells, preferably in the interior (1 a) of the receiving cabin (1) is arranged.

21 receiving cabin according to one of claims 1 to 20, characterized in that the receiving cabin (1) has a support frame with a plurality of vertically spaced - preferably vertical - Stehern (12), preferably between the outer (25) and inner (26) shell arranged are.

22 receiving cabin according to claim 21, characterized in that the uprights (12) below and above with - preferably horizontal - profiles (13, 14, 15) to a stable support frame - are connected. 23 receiving cabin according to claim 21 or 22, characterized in that the support frame of profile tubes (12, 13, 14, 15) is formed, which - preferably several - suitable for receiving sliding blocks or piping, undercut grooves (27). 24. receiving cabin according to one of claims 21 to 23, characterized in that the support frame at least one, preferably all, the following components is attached, preferably via Nutenstein- or Kederverbindungen:

the outer shells (25) of the side walls (2),

the inner shells (26) of the side walls (2),

- Electronic components (8c), preferably boards, the camera units

- holders (18) for optical components of the camera units (8),

- Lighting units (20).

Receiving cabin according to one of claims 18 to 24, characterized in that the outer shell (25) has a - preferably opaque - fabric covering.

26 receiving cabin according to one of claims 18 to 25, characterized in that the inner shell (26) has a - preferably translucent - fabric covering.

27 receiving cabin according to one of claims 18 to 24, characterized in that the outer and / or inner shell is formed from dimensionally stable plates. Receiving cabin according to one of claims 1 to 27, characterized in that at least a part of the lighting units (20) of a total plate-shaped surface radiators - preferably with LED light sources - is formed, preferably between inner and outer shells of the side walls (2), in Area of the ceiling (3) and / or below the upper edge (4a) of the floor (4) are arranged.