JP2019032226A - Photogrammetry-purpose imaging device, and photogrammetry generation device - Google Patents

Abstract

To provide a photogrammetry-purpose imaging device and photogrammetry generation device that can properly adjust a plurality of entire digital cameras to a proper height of a subject according to the height thereof by a simple operation when the height thereof changes.SOLUTION: A photogrammetry-purpose imaging device comprises: a device frame 10 that has a plurality of pillars 10a arranged around a subject M; a plurality of extension/contraction link mechanisms 20 provided corresponding to each of the pillars 10a; a plurality of lifting frames 30 that connects couple shafts 22 themselves of adjacent two X-shape open leg links 21 at the same height position; a plurality of digital cameras 41, 42 and 43 that photographs the subject M supported by the lifting frame 30; a plurality of suspension wires 60 that hoists each X-shape open leg link 21; a balance weight 62 that is attached to each suspension wire 60; and an adjustment-purpose wire 64 that conducts extension/contraction adjustment of the X-shape open leg link 21 connected to an upper end of each X-shape open leg link 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a photogrammetry photographing apparatus for photographing a three-dimensional object by changing a photographing point in a circumferential direction and a height direction with a digital camera in various ways and a plurality of two-dimensional photographs having different photographing points. The present invention also relates to a photogrammetry generation apparatus that generates a three-dimensional photograph by performing photogrammetry for analyzing dimensions and shapes by analyzing parallax information.

  2. Description of the Related Art Conventionally, there has been known a method of photographing a subject with a plurality of cameras arranged around the subject in order to acquire a three-dimensional image of the subject such as a person (see, for example, Patent Document 1). It is possible to acquire a three-dimensional image by simultaneously photographing a subject with each camera and performing image processing on each obtained image data.

  Patent Document 1 discloses a studio as a photogrammetry photographing apparatus that photographs a two-dimensional photograph by changing various photographing points in a circumferential direction and a height direction with a digital camera for a three-dimensional subject. This studio is provided with a plurality of columns that are erected from the floor around the subject, and a plurality of digital cameras that are detachably fixed to the columns.

Japanese Patent No. 5738504

  However, the studio disclosed in Patent Document 1 needs to adjust the height of all the digital cameras one by one each time the subject changes.

  Specifically, if you adjust the height of all digital cameras for an adult and take a picture with each digital camera, then if the subject is replaced by a short child, If you do not adjust the height one by one according to your height, multiple digital cameras that photographed the upper part from the adult torso will result in the image of the child not being photographed. The whole body of the child will be photographed with a plurality of digital cameras that have photographed the lower part from the part. In this case, a photograph that analyzes the parallax information from a plurality of two-dimensional photographs to obtain the size and shape The three-dimensional photograph that is synthesized by surveying becomes a very rough spliced image because the number of two-dimensional photographs is insufficient.

  Therefore, in order to obtain highly accurate three-dimensional photographs when performing photogrammetry, if the subject's height changes slightly, all digital cameras must be matched to the subject's height. There was a problem that it was necessary to adjust the height of each camera, and it took a lot of time to adjust the height of each camera.

  The present invention has been made to solve the above-described problems. By performing a simple operation when the subject's height changes, all of the plurality of digital cameras are adjusted to an appropriate height according to the subject's height. It is an object of the present invention to provide a photogrammetry photographing device and a photogrammetry generation device that can be adjusted to each other.

  In order to achieve the above object, a photogrammetry photographing apparatus according to the present invention is provided with a plurality of support columns arranged around a subject and corresponding to each of the support columns. The X-shaped leg link that is connected in the direction is fixed to the lower part of the column so that the lowermost X-shaped leg link can be opened, and at least the uppermost X-shaped leg link can be opened. The X-shaped opening at the same height position of a plurality of telescopic link mechanisms that are engaged with the struts and movable vertically along the struts and two telescopic link mechanisms that are adjacent to each other at both ends. A plurality of elevating frames horizontally mounted to connect the connecting shafts of the rotation centers of the leg links; a plurality of digital cameras supported by the elevating frames to image the subject; X-shaped open leg link A plurality of suspension wires each having a middle portion wound around a first pulley provided at an upper end portion of the column, and the other end depending on a required length from the first pulley, A weight that is attached to the lower end of the suspension wire and is smaller than the load applied to the suspension wire in the direction of reducing the link length of the expansion / contraction link mechanism due to the gravity action of the expansion / contraction link mechanism, the lifting frame, and the digital camera. A plurality of balance weights, one end of which is locked so that each uppermost X-shaped spread leg link can be opened, and a midway portion is wound around a second pulley provided at the upper end portion of the column. A plurality of height adjustment wires that are wound around a third pulley that is bundled together so that the other end side can be pulled together, the direction is changed so as to be pulled downward, and the fixed portion is hooked. Configuration with A.

  With this configuration, the photogrammetry photographing apparatus according to the present invention adjusts all of the plurality of digital cameras to an appropriate height according to the height of the subject by performing a simple operation when the height of the subject changes. can do. Specifically, the photogrammetry photographing apparatus according to the present invention unfastens the fixed portion of the bundle of height adjustment wires and moves the bundled portion upward or under load. With a simple operation of pulling down against it, it is possible to position each of the multiple digital cameras arranged around the subject at the optimum height that matches the height of the subject, and to have multiple digital cameras with different observation points Thus, it is possible to quickly take a two-dimensional photograph of a subject to obtain photogrammetry, which is a highly accurate three-dimensional composite photograph.

  The photogrammetry photographing apparatus according to the present invention is preferably configured such that the fixed portion is any one of a hand-wound winch, an electric winch, and a pinion rack mechanism.

  With this configuration, the photogrammetry imaging device according to the present invention can loosen or lower the height adjustment wire with a smaller force without removing the bundle of height adjustment wires from the fixed portion. Once the height to be adjusted is determined, the height adjustment wire can be fixed.

  The photogrammetry photographing apparatus according to the present invention may be configured such that the uppermost plurality of digital cameras are zoom lens cameras, and the digital camera that is the zoom lens camera includes the subject. It is preferable that the camera is positioned so as to photograph a portion above the neck.

  With this configuration, the photographing apparatus for photogrammetry according to the present invention can obtain a high-precision photograph each time the focus of each zoom lens camera is focused on the head of the subject requiring the most accurate information. You can focus.

  In the photogrammetry photographing apparatus according to the present invention, it is preferable that the plurality of lowermost digital cameras are positioned so as to photograph the lower end portion of the subject.

  With this configuration, the photogrammetry photographing apparatus according to the present invention can photograph the lower end portion of the subject in a certain height range regardless of the height of the subject.

  In the photogrammetry photographing apparatus according to the present invention, the plurality of digital cameras having respective heights other than the uppermost and lowermost portions overlap each other with the upper and lower digital cameras. It is preferable that the subject is positioned so as to be photographed.

  With this configuration, the photogrammetry photographing apparatus according to the present invention can photograph all the plurality of digital cameras arranged in the height direction by overlapping appropriate divided regions with respect to the entire length of the subject, When photogrammetry is performed, the image is not interrupted.

  In the photogrammetry imaging device according to the present invention, between the two columns of the plurality of columns, the column does not have the lifting frame, or the lifting frame moves like a door. It is good to set it as the structure made into the entrance / exit by providing in this way.

  With this configuration, the photogrammetry photographing apparatus according to the present invention allows the subject to enter and exit through the entrance.

  In order to solve the above-described problems, a photogrammetry generation apparatus according to the present invention is photographed by the above-described photogrammetry photographing apparatus according to the present invention and the plurality of digital cameras of the photogrammetry photographing apparatus. A storage unit for storing a plurality of two-dimensional images of the subject and a plurality of two-dimensional images stored in the storage unit, and performing a photogrammetry operation for analyzing the parallax information to obtain a size / shape and performing a tertiary An arithmetic unit that generates original image data, and an image generator that generates a three-dimensional image of the subject based on the three-dimensional image data generated by the arithmetic unit.

  With this configuration, the photogrammetry generation apparatus according to the present invention has a plurality of observation points that are appropriately distributed in the circumferential direction of the subject and distributed at appropriate intervals in the height direction by the photogrammetry photographing apparatus. Each of the digital cameras can quickly take a two-dimensional photograph of the subject, store a plurality of two-dimensional images of the subject in the storage unit, read out the plurality of two-dimensional images stored in the storage unit, and calculate 3D image data is calculated by analyzing the parallax information to determine the size and shape, and 3D image data is generated. The image generation unit 3D of the subject is highly accurate based on the generated 3D image data. An original image can be generated.

  According to the present invention, by performing a simple operation when the height of a subject is changed, a photogrammetry photographing apparatus capable of adjusting all of a plurality of digital cameras to an appropriate height according to the height of the subject. And a photogrammetry generator.

It is a perspective view which shows the imaging device for photogrammetry which concerns on this Embodiment. It is a front view which shows the imaging device for photogrammetry which concerns on this Embodiment. It is a top view which shows the imaging device for photogrammetry which concerns on this Embodiment. The telescopic link mechanism, which is the main part of the photogrammetry photographing apparatus according to the present embodiment, is in an extended state in accordance with a subject having a large height, and shows a state in which the interval between digital cameras arranged in the vertical direction is large. (A) is a view seen from the inside of the apparatus, and (B) is a side view. The telescopic link mechanism, which is a main part of the photogrammetry photographing apparatus according to the present embodiment, is in an extended state in accordance with a subject having a small height and shows a state in which the interval between the digital cameras arranged in the vertical direction is small. (A) is a view seen from the inside of the apparatus, and (B) is a side view. It is a block diagram of the photogrammetry production | generation apparatus which concerns on this Embodiment.

  Embodiments of a photogrammetry photographing apparatus and a photogrammetry generation apparatus according to the present invention will be described below with reference to the drawings.

[Embodiment of photogrammetry photographing apparatus]
As shown in FIGS. 1 to 5, the photogrammetry photographing apparatus 1 includes a device frame 10 having a plurality of support columns 10a arranged around a subject M, and a plurality of support frames 10a provided corresponding to the support columns 10a. A telescopic link mechanism 20, a plurality of elevating frames 30 that are horizontally mounted so as to connect the X-shaped spread leg links 21 at the same height of the adjacent telescopic link mechanisms 20, and a subject M supported by each elevating frame 30. A plurality of digital cameras 41, 42, 43, a plurality of balance weights 62 attached to each suspension wire 60 that lifts the top X-shaped leg link 21 of each telescopic link mechanism 20, and each telescopic link A plurality of height adjusting wires 64 that are bundled and latched so that the top X-shaped leg link 21 of the mechanism 20 can be lifted and pulled downward at a required position. Eteiru.

  As shown in FIGS. 1 and 3, the device frame 10 has ten support columns 10 a in this embodiment. Each column 10a is erected on the grounding leg 10b. The ten struts 10a are provided in an elliptical annular arrangement in plan view. The subject M is positioned so as to ride on the center B1 of the table B placed on the elliptical center floor. Accordingly, ten columns 10a are arranged around the subject M.

  The ten struts 10a are arranged opposite to each other in the major axis direction of the ellipse, the distance thereof is, for example, about 5.5 to 6.5 m, and the remaining eight are arranged opposed to each other in the minor axis direction. The facing distance is, for example, about 4 to 4.5 m. By having such a distance, the projection distance with respect to the subject M of the plurality of digital cameras 41, 42, 43 arranged around the subject M can be appropriately taken in any direction.

  Each ground leg 10b fixes the column 10a at the upper surface of one end, and the other end extends toward the center in the apparatus. Adjacent grounding legs 10b are connected by a lower connection frame 10c. Moreover, the upper part of the adjacent support | pillar 10a is connected by the upper connection flame | frame 10d. Extruded shapes are used for the columns 10a, the grounding legs 10b, the lower connecting frame 10c, and the upper connecting frame 10d.

  The telescopic link mechanism 20 is provided corresponding to the inside of each column 10a. In the telescopic link mechanism 20, for example, eight X-shaped leg links 21 are connected in a chain in the vertical direction.

  As shown in FIGS. 4 and 5, the connecting shaft 22 at the center of rotation of each X-shaped leg link 21 is supported by an elevating slider 25 engaged with the column 10a. The lowest lift slider 25 is fixed to the support column 10a. The raising / lowering slider 25 engaged with each column 10a other than the bottom is provided so as to be engaged with the column 10a and movable in the vertical direction along the column 10a, and the rotation center of the corresponding X-shaped leg link 21 is provided. The connecting shaft 22 is supported. Therefore, all the X-shaped leg links 21 are provided so that the legs can be opened, and the rotation center of the leg-opening operation of the lowermost X-shaped leg link 21 is fixed. The X-shaped spread leg link 21 is movable in the vertical direction along the support column 10a by lifting the uppermost X-shaped spread leg link 21.

  Two upper ends of the uppermost X-shaped leg link 21 are engaged with left and right lateral slits 23 a of the lifting bar 23.

  The bottom and top lift sliders 25 are necessary components, and the other connecting shafts 22 of the X-shaped leg links 21 may not be supported by the lift sliders 25. It is sufficient that at least the connecting shaft 22 of the uppermost X-shaped leg link 21 is configured to move by being engaged with the column 10a.

  The elevating frame 30 is horizontally mounted so as to connect the connecting shafts 22 at the rotation center of the X-shaped spread leg link 21 at the same height of the two telescopic link mechanisms 20 adjacent to each other at both ends. Specifically, each connection shaft 22 is provided with an angle bracket 24, and both end portions of the lifting frame 30 are placed and fixed on the upper surface of the adjacent bracket 24. The elevating frame 30 is made of, for example, a metal plate or a plastic plate, and may be bridged so that the middle of the span has rigidity that does not bend, distort, or vibrate with the weight of the digital camera 41, 42, 43. .

  As shown in FIGS. 1 to 3, the digital cameras 41, 42, and 43 are provided so as to photograph the subject M while being supported so that the angle can be adjusted at a position near or in the middle of the telescopic link mechanism 20 of each lifting frame 30. . The arrangement of the digital cameras 41, 42, and 43 in plan view is set so as to give a substantially uniform sensation around the subject M. The digital cameras 41, 42, and 43 are configured to input an external signal by wire or wireless. When the external signal is input, the digital camera 41, 42, and 43 captures the subject M and transmits the captured two-dimensional image to an external PC. It has become. In the digital cameras 41, 42, and 43 shown in FIG. 3, the azimuth angle and distance with respect to the center B1 of the table B are constant regardless of the elevation of the elevating frame 30, and the numerical values of the azimuth angle and distance are stored in the PC in advance. It is used when performing photogrammetry calculations.

  The digital cameras 41, 42, and 43 are supported by the elevating frame 30 with the shooting direction adjusted in the horizontal direction toward the subject M.

  The plurality of uppermost digital cameras 41 are supported by the uppermost lifting frame 30 and are zoom lens cameras, and are positioned so as to shoot at the same height as the center of the head of the subject M.

  The plurality of bottom digital cameras 42 are supported by the bottom lifting frame 30 and are positioned so as to photograph the lower part including the lower end of the subject M. The height from the floor surface of the plurality of digital cameras 42 at the bottom is adjusted to be the height of the base B +10 to 20 cm.

  The plurality of digital cameras 43 at the respective heights other than the top and bottom are arranged at positions that divide the height dimension between the top digital camera 41 and the bottom digital camera 42 into seven equal parts. The subject M is photographed so as to be overlapped with the upper and lower digital cameras 41, 42, and 43 and supported by the lifting frame 30 other than the lowermost top and bottom. To be positioned.

  The suspension wire 60 has one end locked to the central portion of the lifting bar 23 so that the uppermost X-shaped leg link 21 can be opened, and a middle portion is provided at the upper end of the column 10a. One pulley 51 is wound around and the other end hangs down from the first pulley 51 for a required length. For the suspension wire 60, an appropriate material having a single wire shape or a stranded wire shape that is flexible and corrosive and has no contraction is selected. In this embodiment, two first pulleys 51 are provided side by side.

  The balance weight 62 is attached to the lower end of each suspension wire 60, and is suspended in a direction to reduce the link length of the expansion / contraction link mechanism by the gravity action of the corresponding expansion / contraction link mechanism 20, the lifting frame 30, and the digital cameras 41, 42, 43. It has a slightly smaller weight than the load on the wire 60.

  One end of the height adjusting wire 64 is locked to the central portion of the lifting bar 23 so that the uppermost X-shaped leg link 21 can be opened, and a midway portion is provided at the upper end of the column 10a. The second pulley 52 is wound around, and the other end is wound around a third pulley 53 provided at the upper end portion of the support column 10a so as to be pulled downward in a bundle that can be pulled together. The direction is changed and the hook is fixed to the fixing portion 66. In this configuration, there are two entrances E and are provided on both sides of a line connecting the two entrances E respectively. That is, the lifting frame 30 and the digital cameras 41 and 43 can be lifted and lowered independently in units of half a circle. For the height adjusting wire 64, an appropriate material of a single wire shape or a stranded wire shape is selected that does not extend and contract and has flexibility, corrosiveness, and durability.

  The fixing portion 66 may be any means that can lock the height adjusting wire 64 in the vertical direction. In this embodiment, a short bar-like projection capable of winding and fixing the height adjusting wire 64 is applied.

  Of the ten columns 10a having an elliptical arrangement, the two columns 10a in both the elliptical long axis directions do not have the lifting frame 30 or the lifting frame 30 has a door shape. Thus, two doorways E are provided.

  Next, the operation of the photogrammetry photographing apparatus will be described.

  When the height adjusting wire 64 is operated and the height adjusting wire 64 is loosened and traveled upward by the action of gravity, all the telescopic link mechanisms 20 are simultaneously reduced, and the lifting frame 30 is arranged in the vertical direction. And the interval between the digital cameras arranged in the vertical direction is reduced. Further, when the height adjusting wire 64 is caused to travel downward by pulling, all the telescopic link mechanisms 20 are extended at the same time, the interval between the vertically arranged lifting frames 30 is widened, and the vertically arranged digital is arranged. The distance between the cameras 41, 42, and 43 is increased.

  The balance weight 62 is slightly smaller than the load applied to the suspension wire 60 in the direction of reducing the length of the telescopic link mechanism 20 due to the gravitational action of the telescopic link mechanism 20, the lifting frame 30, and the digital cameras 41, 42, 43. Since it has weight, the force for loosening or pulling the height adjusting wire 64 can be small, and manpower operation is possible.

  Therefore, when the subject M is positioned in the center of the photogrammetry photographing device through the entrance E and the body side direction is oriented in the long axis direction of the elliptical annular array of the support columns 10a, the height adjusting wire is fixed. 64 is operated to adjust the height so that the top digital camera 41 matches the height of the subject M's head, specifically the eye position, according to the height of the subject M.

  Next, the distance of the zoom lens of the top digital camera 41 is adjusted so that the head of the subject M fits in the frame. The zoom lens need not be readjusted even if the subject M has a different height. If the distance of the zoom lens is adjusted for an adult, the subject M may be adjusted even if the subject M is replaced by a child with a small face, but this is not necessary. When the subject M is an adult and two children, the top digital camera 41 is made to correspond to the adult.

  As a result, the top digital cameras 41 are configured so that the area of the head of the subject M is adjusted to the shooting area by the zoom function, and the plurality of digital cameras 42 other than the top digital camera 42 are configured to shoot. , 43 are the shooting areas such that the shooting areas with the upper and lower digital cameras 41, 42, 43 overlap with the height of the subject M, for example, one third to one fifth. Will be adjusted.

  Next, effects of the photogrammetry photographing apparatus 1 according to the present embodiment will be described.

  The photogrammetry photographing apparatus 1 simply removes the bundled portion of the height adjusting wire 64 from the fixing portion 66 and moves the bundled portion upward where the load is applied or pulls it downward against the load. By the operation, each of the plurality of digital cameras 41, 42, 43 arranged around the subject M can be positioned at the optimum height according to the height of the subject M, and the plurality of digital cameras 41 having different observation points. , 42 and 43, a two-dimensional photograph of the subject M can be quickly taken to obtain photogrammetry which is a highly accurate three-dimensional composite photograph.

  Since the plurality of digital cameras 41 at the top are positioned so as to photograph a portion above the neck of the subject M as a zoom lens camera, the digital camera 41 of the subject M requiring the most accurate information is used. Each zoom lens camera can be focused on the head so that a high-precision photograph can be obtained each time.

  Since the plurality of digital cameras 42 at the bottom are positioned so as to photograph the lower end of the subject M, the subject M within a certain height range regardless of the height of the subject M. The lower end of can be photographed.

  The plurality of digital cameras 43 at each height other than the top and bottom are positioned so as to photograph the subject M so as to overlap the digital cameras 41, 42, 43 one above and one below. Therefore, all of the plurality of digital cameras 41, 42, 43 arranged in the height direction can be photographed by overlapping an appropriate divided area with respect to the entire length of the subject M. When gramming is performed, the image is not interrupted.

  Since there is no elevating frame between two columns among the plurality of columns, it is configured as an entrance / exit E, so that the subject M can enter / exit through the entrance / exit E. The entrance / exit E may also be provided with an elevating frame in the shape of a door and provided in accordance with the entry / exit of the subject.

  The photogrammetry imaging apparatus according to the present invention is not limited to the configuration of the above embodiment. For example, in the embodiment, the fixing portion 66 that fixes the bundling wire 65 that is a bundling portion of the height adjusting wire is a bar-like body protruding horizontally, and the bundling wire 65 is wound around this. Alternatively, the fixed portion may be configured by any of a hand-wound winch, an electric winch, or a pinion rack mechanism, and the collective wire 65 may be configured to move in the wire direction. This makes it possible to loosen or lower the height adjustment wire with a smaller force without removing the bundle of height adjustment wires from the fixed part. The adjustment wire can be fixed.

  The use of the zoom camera is not limited to the top digital camera 41. In addition to the digital cameras 41, 42, and 43, a digital camera that photographs the lower end portion of the subject from obliquely below is provided on the lower connection frame 10 c so that the angle can be adjusted. The connecting frame 10d may be provided so that the angle can be adjusted. Further, the ceiling frame may be provided with a plurality of ceiling frames that connect the upper ends of a plurality of sets of struts in pairs that face each other across the subject, and photograph the head of the subject from obliquely above.

  As a structure with multiple ceiling cameras (digital cameras) that shoot subjects from obliquely above multiple different positions, each subject is captured from the top by each ceiling camera, and image data is also added, resulting in more accurate three-dimensional It is good also as a structure which can acquire an image.

  In the above embodiment, there are two entrances E, but one may be used. When there is only one doorway E, when one doorway E is provided on both sides of the line connecting all the doorways E, the arrangement of the third pulley 53 is different, but the collective wire 65 provided at one place is different. , The height of the lifting frame 30 and the digital cameras 41 and 43 other than the most suitable one can be adjusted according to the height of the subject M.

[Embodiment of Photogrammetry Generation Device]
FIG. 6 is a block diagram showing the photogrammetry generation apparatus 100 according to the present embodiment. The photogrammetry generation apparatus 100 includes a plurality of digital units of the photogrammetry imaging apparatus 1 according to the embodiment shown in FIG. 5 described in any of FIGS. 1 to 3 and the photogrammetry imaging apparatus 1. A storage unit 71 that stores a plurality of two-dimensional images of the subject M photographed by the cameras 41, 42, and 43, and a plurality of two-dimensional images stored in the storage unit 71 are read out, and parallax information is analyzed to determine the size and shape A calculation unit 72 for calculating photogrammetry to generate three-dimensional image data; an image generation unit 73 for generating a three-dimensional image of the subject based on the three-dimensional image data generated by the calculation unit 72; And a display unit 74.

  The photogrammetry photographing apparatus 1 photographs the subject M simultaneously with the plurality of digital cameras 41, 42, and 43 as described above.

  The storage unit 71 stores two-dimensional image data obtained by photographing. As the storage unit 71, a data storage device such as a semiconductor memory or a hard disk is used.

  The computing unit 72 calculates the three-dimensional coordinates of the target point by obtaining the point where the line of sight or light rays from each camera position to the common point intersect based on the two-dimensional image data, and generates three-dimensional data. The calculation unit 72 includes a processing device such as a CPU and a recording device such as a memory and a hard disk. The calculation unit 72 can perform high-precision photogrammetry calculations by using the azimuth angles of the digital cameras 41, 42, and 43 stored in advance and the distance to the center B1 of the table B.

  The image generation unit 73 performs texture synthesis or the like based on the obtained three-dimensional data D2, and generates a three-dimensional image having an appearance that is substantially the same as the appearance of the subject recognized visually. Similar to the calculation unit 72, the image generation unit 73 generates a three-dimensional image by executing an image processing program read by the CPU.

  The memory | storage part 71, the calculating part 72, and the image generation part 73 can be comprised by reading an image processing program in ROM of PC. The CPU of the PC reads the image processing program recorded in the ROM and executes this program, thereby executing the processing of the arithmetic unit 72 and the image generating unit 73 described above to generate three-dimensional data. Commercially available photogrammetry software can be used as the image processing program.

  The display unit 74 is composed of a liquid crystal display of a PC and displays a three-dimensional image.

  As described above, the photogrammetry photographing apparatus and the photogrammetry generation apparatus according to the present invention can change all of a plurality of digital cameras to the subject height by performing a simple operation when the subject height changes. It has the effect of being able to be adjusted to an appropriate height in combination, and is useful for general photogrammetry imaging devices and photogrammetry generation devices.

DESCRIPTION OF SYMBOLS 1 Photogrammetry imaging device 10 Device frame 10a Strut 20 Telescopic link mechanism 21 X-shaped leg link 22 Connecting shaft 30 Lifting frame 41, 42, 43 Digital camera 51 First pulley 52 Second pulley 53 Third pulley Reference Signs List 60 suspension wire 62 balance weight 64 height adjustment wire 66 fixed unit 71 storage unit 72 calculation unit 73 image generation unit 74 display unit 100 photogrammetry generation device E entrance / exit M subject

Claims (8)

A plurality of supports arranged around the subject,
A plurality of X-shaped leg links are provided in correspondence with each of the columns, and are fixed to the lower part of the column so that the lowermost X-shaped link can be opened. A plurality of telescopic link mechanisms that are engaged with the support column and movable in the vertical direction along the support column so that at least the uppermost X-shaped opening link can be opened;
A plurality of elevating frames horizontally mounted to connect the connecting shafts of the rotation centers of the X-shaped spread leg links at the same height position of the two telescopic link mechanisms adjacent to each other at both ends;
A plurality of digital cameras supported by each of the elevating frames to image the subject;
One end is locked so that each uppermost X-shaped leg link can be opened, and a midway part is wound around a first pulley provided at an upper end part of the column, and the other end side is A plurality of hanging wires depending on the required length from one pulley;
A weight that is attached to the lower end of each suspension wire and is smaller than the load applied to the suspension wire in the direction of reducing the link length of the expansion / contraction link mechanism due to the gravity action of the expansion / contraction link mechanism, the lifting frame, and the digital camera. A plurality of balance weights,
One end is locked so that each uppermost X-shaped leg link can be opened, the middle part is wound around a second pulley provided at the upper end part of the column, and the other end side is gathered together A plurality of height adjustment wires that are wound around a third pulley that is bundled so as to be towable, changed in direction so as to be pulled downward, and hooked to a fixed portion;
An apparatus for photogrammetry, comprising:   The photogrammetry photographing apparatus according to claim 1, wherein the fixing unit is one of a hand-wound winch, an electric winch, and a pinion rack mechanism.   The photogrammetry photographing apparatus according to claim 1, wherein the plurality of digital cameras at the top are zoom lens cameras.   4. The photogrammetry photographing apparatus according to claim 3, wherein the digital camera which is the zoom lens camera is positioned so as to photograph a portion above the neck of the subject.   The photogrammetry photographing apparatus according to any one of claims 1 to 4, wherein a plurality of the lowest digital cameras are positioned so as to photograph a lower end portion of the subject.   A plurality of the digital cameras at respective heights other than the top and bottom are positioned so as to photograph the subject so as to overlap with the digital camera one level above and one level below. The photogrammetry imaging apparatus according to claim 5, wherein the apparatus is a photogrammetry imaging apparatus.   Of the plurality of pillars, between the two pillars, the elevator frame is not provided, or the elevator frame is provided so as to move like a door. The photogrammetry photographing apparatus according to claim 1, wherein the photographing apparatus is a photogrammetry photographing apparatus. The photogrammetry imaging device according to any one of claims 1 to 7,
A storage unit for storing a plurality of two-dimensional images of the subject photographed by each of the plurality of digital cameras of the photogrammetry photographing device;
A calculation unit that reads out a plurality of two-dimensional images stored in the storage unit, analyzes the parallax information, obtains a size / shape, and performs a photogrammetric calculation to generate three-dimensional image data;
An image generation unit, comprising: an image generation unit configured to generate a three-dimensional image of the subject based on the three-dimensional image data generated by the arithmetic unit.

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