AU2020103932A4 - Virtual-coaxial portable three-dimensional camera with small volume - Google Patents
Virtual-coaxial portable three-dimensional camera with small volume Download PDFInfo
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- AU2020103932A4 AU2020103932A4 AU2020103932A AU2020103932A AU2020103932A4 AU 2020103932 A4 AU2020103932 A4 AU 2020103932A4 AU 2020103932 A AU2020103932 A AU 2020103932A AU 2020103932 A AU2020103932 A AU 2020103932A AU 2020103932 A4 AU2020103932 A4 AU 2020103932A4
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- Australia
- Prior art keywords
- lens
- virtual
- coaxial
- portable
- spectroscope
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1066—Beam splitting or combining systems for enhancing image performance, like resolution, pixel numbers, dual magnifications or dynamic range, by tiling, slicing or overlapping fields of view
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/36—Videogrammetry, i.e. electronic processing of video signals from a single source or from different sources to give parallax or range information
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/106—Beam splitting or combining systems for splitting or combining a plurality of identical beams or images, e.g. image replication
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
- G03B35/08—Stereoscopic photography by simultaneous recording
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Studio Devices (AREA)
Abstract
A virtual-coaxial portable three-dimensional camera with a small volume
includes a first lens and a second lens. The first lens is fixed on a first base, and the
second lens is fixed on a second base. Optical axes of the fixed first lens and second
lens are parallel to each other; the first base and the second base are arranged on a
same vertical line; and the first base is arranged right above the second base. The
virtual-coaxial portable three-dimensional camera with the small volume is small in
volume, simple in structure, low in cost, convenient to carry, and suitable for the
three-dimensional imaging of front targets, short-distance targets and long-distance
targets.
1
Distance between an object and a
first lens at a moment iI
11
7 U0
Object height
Distance Li between the center of
1 a- 50% reflector and an upper lens
Distance L2 between the center of
Sa total reflector and a lower lens
FIG. 1
1
Description
Distance between an object and a first lens at a moment iI
11 U0 7
Object height
Distance Li between the center of 1 a- 50% reflector and an upper lens
Distance L2 between the center of Sa total reflector and a lower lens
FIG. 1
Patents Act 1990
The following statement is a full description of this invention, including the best
method of performing it
known to me:
[0001] The present invention relates to a three-dimensional camera, and more
particularly relates to a virtual-coaxial portable three-dimensional camera with a small
volume.
[0002] Three-dimensional photography is widely used in the fields of industrial
detection, medical treatment, architectural design, aerospace and virtual reality.
[0003] For example, the three-dimensional photography plays an important role in
modeling of cities and towns. Especially when natural disasters occur, rescuers can
make more reasonable deployments through three-dimensional structures. The
protection of cultural relics has always been a historical problem, and good effects
have been achieved in the reconstruction of cultural relics based on the
three-dimensional photography technology. The three-dimensional photography can
rapidly find an injured part of a patient and provide technical support for doctors in
the aspect of the medical rescue. The three-dimensional photography can also
effectively promote the development of the unmanned combat and equipment
navigation.
[0004] However, front and rear lenses shall be arranged for the existing
three-dimensional camera, thereby causing too large volume. Moreover, the front lens
blocks the light ray of the rear lens, so that the rear lens cannot acquire all image
information acquired by the front lens, which leads to that images corresponding to
many areas in front of the front lens cannot be used, resulting in data waste. The three-dimensional reconstruction can only be performed for the non-front areas that can be acquired by both the front and rear lenses, that is, in terms of appearance, what is seen is not photographed, and there is the area that cannot be used for the three-dimensional reconstruction. Therefore, the existing three-dimensional camera is only suitable for a fixed form. A distance between the front lens and the rear lens can be changed in a larger range so as to perform the three-dimensional imaging for a further target object. However, due to large length and large volume, the existing three-dimensional camera is inconvenient for individual users to carry.
[0005] Therefore, the problems in the prior art need to be further overcome and solved.
[0006] (I) Purpose of the invention: to solve the above problems in the prior art, the purpose of the present invention is to provide a three-dimensional camera which is small in volume and convenient to carry.
[0007] (II) Technical solutions: to solve the above technical problems, the technical solution provides a virtual-coaxial portable three-dimensional camera with a small volume, which includes a first lens and a second lens; the first lens is fixed on a first base, and the secondlensis fixed on asecond lens.
[0008] Optical axes of the fixed first lens and second lens are parallel to each other; and the first base and the second base are arranged on a same vertical line, and the first base is arranged right above the second base.
[0009] The virtual-coaxial portable three-dimensional camera with the small volume also includes a spectroscope and a total reflector. The center of the spectroscope is overlapped with the optical axis of the first lens, and an angle between the spectroscope and the optical axis of the first lens is 45 degrees.
[0010] The center of the total reflector is overlapped with the optical axis of the
second lens, and an angle between the total reflector and the optical axis of the second
lens is 45 degrees.
[0011] The spectroscope is arranged oppositely to a reflecting surface of the total
reflector.
[0012] In the virtual-coaxial portable three-dimensional camera with the small
volume, the spectroscope is a 50% spectroscope.
[0013] In the virtual-coaxial portable three-dimensional camera with the small
volume, each of the first lens and the second lens includes a photographing lens and a
sensor.
[0014] In the virtual-coaxial portable three-dimensional camera with the small
volume, a distance between the optical axis of the first lens and the optical axis of the
second lens is h; a distance between the center of the total reflector and the first lens is
LI; and a distance between the center of the total reflector and the second lens is L2.
[0015] In the virtual-coaxial portable three-dimensional camera with the small
volume, all points of a target object are calculated to obtain a distance between all
points and the first lens or the second lens group, a height relative to the central axes
of the first lens or second lens group as well as respective angles, so that the
three-dimensional information of the target object can be obtained, thereby
completing the three-dimensional photography of the object.
[0016] (III) Beneficial effects: the virtual-coaxial portable three-dimensional camera
with the small volume in the present invention is small in volume, simple in structure,
low in cost, convenient to carry, and suitable for the three-dimensional imaging of
front targets, short-distance targets and long-distance targets.
[0017] Fig. 1 is a structural diagram of a specific embodiment of a virtual-coaxial
portable three-dimensional camera with a small volume of the present invention.
[0018] 1-first lens; 2-second lens; 3-spectroscope; 4-total reflector; 5-target object;
6-distance h between an optical axis of the first lens and an optical axis of the second
lens; 7-optical axis of the first lens; 8-optical axis of the second lens.
[0019] The present invention is further described in detail below in conjunction with
preferred embodiments. More details are illustrated in the following description to
fully understand the present invention. However, the present invention can obviously
be implemented in many other ways different from the description. Those skilled in
the art can make similar promotion and deduction according to actual application
conditions without violating the connotation of the present invention. Therefore, the
content of the specific embodiment should not limit the protection scope of the
present invention.
[0020] The accompanying drawing is a schematic diagram of embodiments of the
present invention. It should be noted that the accompanying drawing is only an
example and is not drawn under an isometric condition, and should not be used as a
limitation to the actual protection scope of the present invention.
[0021] A preferred embodiment of a virtual-coaxial portable three-dimensional
camera of the present invention is described below.
[0022] The virtual-coaxial portable three-dimensional camera with the small volume,
as shown in Fig. 1, includes a first lens 1, a second lens 2, a spectroscope 3 and a total
reflector 4.
[0023] Each of the first lens 1 and the second lens 2 includes a photographing lens
and a sensor.
[0024] The first lens 1 is fixed on a first base, and the second lens 2 is fixed on a
second base. The first base and the second base are arranged on a same vertical line,
and the first base is arranged right above the second base. Optical axes of the fixed
first lens 1 and second lens 2 are parallel to each other.
[0025] The center of the spectroscope 3 is overlapped with the optical axis 7 of the
second lens, and the center of the total reflector 4 is overlapped with the optical axis 8
of the second lens. The spectroscope 3 is arranged oppositely to a reflecting surface of
the total reflector 4. The spectroscope 3 is parallel to the total reflector 4. The line
connecting the center of the spectroscope 3 and the center of the total reflector 4 is
perpendicular to the optical axis 7 of the first lens and the optical axis 8 of the second
lens.
[0026] Preferably, an angle between the spectroscope 3 and the optical axis 7 of the
first lens is 45 degrees and inclines downwardly. An angle between the total reflector
4 and the optical axis 8 of the second lens is 45 degrees and inclines upwardly.
[0027] Preferably, the spectroscope 3 is a 50% spectroscope. The spectroscope 3
enables 50% of light ray to advance continuously to enter the first lens 1 and to form
an image I; and the remaining 50% of the light ray is reflected downwardly to enter
the total reflector 4 arranged in front of the second lens 2, and is totally reflected to
enter the second lens 2 and to form an image II.
[0028] Each of the first lens 1 and the second lens 2 includes a photographing lens
and a sensor. The photographing lens is used to photograph a target object. The sensor
is a photoelectric sensor and is used to image the target object.
[0029] The three-dimensional camera also includes a central calculation module.
The central calculation module calculates all points of the target object to obtain
three-dimensional information of the target object, thereby completing the
three-dimensional photography of the object.
[0030] A distance between the optical axis 7 of the first lens and the optical axis 8 of
the second lens is h. The distance between the center of the spectroscope 3 and the
first lens 1 is L. The distance between the center of the total reflector 4 and the
second lens 2 is L2. A height of an image in the first lens is d, and the height of the
image in the second lens is d. A photo of the target object in the image through the
first lens has a height dl. The photo of the object in the image through the second lens has a height d2. The first lens and the second lens exactly have the same focal length and view angle 0:
[0031] A result of an object height His calculated according to H - (L 2 +h-L,)*tgO
(L, h-L1
[0032] Accordingto L1:= +-1 , a distance L'1 between the object and the
) 1
first lens at the moment tl is calculated.
[0033] Specifically as follows:
[0034] The first lens 1 is an upper lens arranged vertically, and the second lens 2 is a
lower lens arranged vertically. The optical axes of the upper and lower lenses are
arranged in parallel, and a distance between the optical axes is h.
[0035] The 50% spectroscope is located in front of the first lens 1, and the center of
the spectroscope is arranged on the optical axis 7 of the first lens. The angle between
the spectroscope and the optical axis is 45 degrees and faces downwards. The distance
from the center of the spectroscope to the upper lens is LI, which can be precisely
adjusted and can be precisely measured.
[0036] The total reflector 4 is arranged in front of the second lens 2, and the center
of the total reflector is arranged on the optical axis 8 of the second lens. The angle
between the total reflector and the optical axis 8 of the second lens is 45 degrees and
faces upwards. The total reflector 4 is parallel to the 50% spectroscope. The distance
from the total reflector to the lower lens is L2, which can be precisely adjusted and
can be precisely measured.
[0037] The line connecting the center of the 50% spectroscope and the center of the
total reflector 4 is perpendicular to the optical axes of the upper and lower lenses.
After the light ray reflected by the target object 5 reaches the 50% spectroscope, 50%
of the full light ray passes through the spectroscope to reach the photographing
camera and sensor of the first lens 1 to form a first image, i.e. image I.
[0038] The remaining 50% of the light ray is reflected to reach the lower total
reflector 4 according to a reflection law. The remaining 50% of the light ray from the
50% spectroscope reaches the total reflector 4 and is all reflected to the photographing
lens and sensor of the second lens 2 according to the reflection law to form a second
image, i.e. image II.
[0039] The central calculation module is respectively connected with the sensor of
the first lens and the sensor of the second lens. The central calculation module can
calculate the height of the target object 5 and the distance from the target object to the
upper lens according to the position or occupation ratio of the photo of the target
object 5 in the image I and image II.
[0040] The height of the image in the first lens is d, and the height of the image in
the second lens is d. The photo of the target object in the image through the first lens
has a height dl. The photo of the object in the image through the second lens has a
height d2. The first lens and the second lens exactly have the same focal length and
view angle 0:
[0041] The height Hof the object in the direction of the central axis: (L 2 +h-L1 )*tg&9
[0042] di d .
[0043] The distance L'l between the object and the first lens at the moment tl:
Li1= (L +h-L 1 )
1
[0044] d2
[0045] The virtual-coaxial portable three-dimensional camera with the small volume
is small in volume, simple in structure, low in cost, convenient to carry, and suitable
for the three-dimensional imaging of front targets, short-distance targets and
long-distance targets.
[0046] The three-dimensional camera provided by the present invention preferably
can also have a special-effect function, such as a hazy photo. Elements of the hazy
photo include haze, halo and the like, which are not limited herein. The present
invention is preferably provided with a first controller. The first controller has
special-effect elements such as three-dimensional haze, three-dimensional halo and
the like. The three-dimensional camera also includes a second controller. The second controller includes three-dimensional movement tracks of the hazy elements. The three-dimensional movement tracks include any tracks such as arc tracks and heart-shaped tracks. The tracks include the three-dimensional tracks or the two-dimensional tracks, which can be preset and may also be set by users, and is not limited herein. A three-dimensional space of the three-dimensional photography can be divided into spatial matrix grids. The spatial matrix grids are 4*4*4 and 6*6*6, which are not limited herein. The present invention can correlate and map the three-dimensional movement tracks to different matrix grids, so that different tracks are matched with different matrix grids, that is, different special-effect elements are displayed in different three-dimensional matrix grids, and the specific positions are not limited herein.
[0047] The present invention preferably can also have a three-dimensional photographing time axis. One or more controllers are correlated to different time points or different time periods of the time axis, so that the special-effect elements can be displayed in a picture of the three-dimensional camera according to the preset time point or time period. The three-dimensional special-effect elements can be realized through the projection of a holographic projection apparatus of the three-dimensional camera. A specific form is not limited herein.
[0048] The above describes preferred embodiments of the present invention, which can help those skilled in the art to more fully understand the technical solutions of the present invention. However, these embodiments are only examples and shall not be appreciated that the specific implementation ways of the present invention are only limited to the description of the embodiments. For those ordinary skilled in the art, several simple deductions or variations may be made without deviating from the inventive concept of the present invention, and shall be regarded to belong to the protection scope of the present invention.
Claims (6)
1. A virtual-coaxial portable three-dimensional camera with a small volume,
comprising a first lens and a second lens, wherein the first lens is fixed on a first base,
and the second lens is fixed on a second lens, wherein
optical axes of the fixed first lens and second lens are parallel to each other; and
the first base is arranged right above the second base.
2. The virtual-coaxial portable three-dimensional camera with the small volume
according to claim 1, also comprising a spectroscope and a total reflector, wherein the
center of the spectroscope is overlapped with the optical axis of the first lens, and the
center of the total reflector is overlapped with the optical axis of the second lens;
the spectroscope is arranged oppositely to a reflecting surface of the total
reflector; the spectroscope is parallel to the total reflector; and a line connecting the
center of the spectroscope and the center of the total reflector is perpendicular to the
optical axis of the first lens and the optical axis of the second lens.
3. The virtual-coaxial portable three-dimensional camera with the small volume
according to claim 2, wherein the spectroscope is a 50% spectroscope.
4. The virtual-coaxial portable three-dimensional camera with the small volume
according to claim 1, wherein the first lens and the second lens exactly have the same
focal length and view angle 0.
5. The virtual-coaxial portable three-dimensional camera with the small volume
according to claim 1, wherein each of the first lens and the second lens comprises a
photographing lens and a sensor.
6. The virtual-coaxial portable three-dimensional camera with the small volume
according to claim 1, also comprising a central calculation module, wherein the central calculation module calculates all points of the target object to obtain three-dimensional information of the target object, thereby completing the three-dimensional photography of the object.
FIG. 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103932A AU2020103932A4 (en) | 2020-12-07 | 2020-12-07 | Virtual-coaxial portable three-dimensional camera with small volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103932A AU2020103932A4 (en) | 2020-12-07 | 2020-12-07 | Virtual-coaxial portable three-dimensional camera with small volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020103932A4 true AU2020103932A4 (en) | 2021-02-11 |
Family
ID=74502280
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020103932A Ceased AU2020103932A4 (en) | 2020-12-07 | 2020-12-07 | Virtual-coaxial portable three-dimensional camera with small volume |
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| Country | Link |
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| AU (1) | AU2020103932A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720300A (en) * | 2021-09-18 | 2021-11-30 | 兰州大学 | Monocular distance measurement method based on target recognition neural network |
-
2020
- 2020-12-07 AU AU2020103932A patent/AU2020103932A4/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720300A (en) * | 2021-09-18 | 2021-11-30 | 兰州大学 | Monocular distance measurement method based on target recognition neural network |
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| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |