CN211785087U - 4D camera device and electronic equipment - Google Patents
4D camera device and electronic equipment Download PDFInfo
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- CN211785087U CN211785087U CN201922073441.5U CN201922073441U CN211785087U CN 211785087 U CN211785087 U CN 211785087U CN 201922073441 U CN201922073441 U CN 201922073441U CN 211785087 U CN211785087 U CN 211785087U
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Abstract
The utility model provides a 4D camera device and an electronic device, which comprises a spectrometer and a 3D camera; the 3D camera comprises a light projector, a first imaging module and a second imaging module; a light projector for projecting light toward a target object; the first imaging module is used for receiving the reflected light of the target object and obtaining a depth image of the surface of the target object according to the reflected light; the second imaging module is used for acquiring a 2D image of the target object; and the spectrometer is used for receiving the target object reflected light and generating spectral information of the target object reflected light. The utility model discloses a be in the same place spectrum appearance and 3D camera integration for the user can be convenient to spectrum appearance and 3D camera simultaneously or call respectively, enlarged the utility model discloses an use the scene, if call the spectrum appearance alone and carry out each composition content in food safety monitoring, the detection of fruit composition, the milk, protein content is human fat content etc. even in the body-building beverage.
Description
Technical Field
The utility model relates to a degree of depth sensing equipment technical field specifically relates to a 4D camera device and electronic equipment.
Background
In recent years, with the development of the consumer electronics industry, the 3D camera having the depth sensing function is receiving increasing attention from the consumer electronics world. The current well-established depth measurement method is a structured light scheme, i.e. a specific structured light pattern is projected on an object, and then the depths of different positions of the object are calculated through the deformation or displacement of the pattern.
Structured light three-dimensional vision is based on the principle of optical triangulation. The optical projector projects the structured light with a certain mode on the surface of the object to form a light bar three-dimensional image modulated by the surface shape of the object to be measured on the surface. The three-dimensional image is detected by a camera at another location to obtain a two-dimensional distorted image of the light bar. The degree of distortion of the light bar depends on the relative position between the optical projector and the camera and the object surface profile (height). Intuitively, the displacement or offset displayed along the bar is proportional to the height of the object surface, and the kink indicates a change in plane, and the discontinuity indicates a physical gap in the surface. When the relative position between the optical projector and the camera is fixed, the three-dimensional profile of the object surface can be reproduced by the distorted two-dimensional light bar image coordinates.
The tof (time of flight) technique is a 3D imaging technique that emits measurement light from a projector and reflects the measurement light back to a receiver through a target object, thereby obtaining a spatial distance from the object to a sensor from a propagation time of the measurement light in the propagation path. Common ToF techniques include single point scanning projection methods and area light projection methods.
The spectrometer is a scientific instrument which decomposes light with complex components into spectral lines and is composed of a prism or a diffraction grating and the like, and the spectrometer can be used for measuring light rays reflected by the surface of an object. The seven colors of sunlight are visible light, but if the sunlight is decomposed by a spectrometer and arranged according to wavelength, the visible light occupies a small range in the spectrum, and the rest is a spectrum which cannot be distinguished by naked eyes, such as infrared rays, microwaves, ultraviolet rays, X rays and the like. The optical information is captured by a spectrometer, developed by a photographic negative film, or displayed and analyzed by a computerized automatic display numerical instrument, so that the element contained in the article can be detected. This technique is widely used in the detection of air pollution, water pollution, food hygiene, metal industry, and the like.
However, after searching the prior art, the prior art has no device for combining the spectrometer and the 3D camera.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a 4D camera device and electronic equipment.
According to the utility model provides a 4D camera device, which comprises a spectrometer and a 3D camera;
the 3D camera comprises a light projector, a first imaging module and a second imaging module;
the light projector is used for projecting light to a target object;
the first imaging module is used for receiving the reflected light of the target object and obtaining a depth image of the surface of the target object according to the reflected light;
the second imaging module is used for acquiring a 2D image of the target object;
the spectrometer is used for receiving the target object reflected light and generating spectral information of the target object reflected light.
Preferably, the first imaging module comprises a first filter and a first image sensor;
the spectrometer comprises a dispersion element, wherein the dispersion element is used for carrying out dispersion and light splitting on the reflected light so as to form dispersion stripes with sequentially arranged wavelengths on the first image sensor;
the dispersion element is arranged on the light-in side face, the light-out side face or the light-sensitive surface of the first optical filter.
Preferably, the second imaging module comprises a second filter and a second image sensor;
the spectrometer comprises a dispersion element, wherein the dispersion element is used for carrying out dispersion and light splitting on the reflected light of the target object so as to form dispersion stripes with sequentially arranged wavelengths on the second image sensor;
the dispersion element is arranged on the light-in side face, the light-out side face or the light-sensitive surface of the second optical filter.
Preferably, the dispersive element employs a planar diffraction grating, a prism or an optical waveguide device.
Preferably, the first image sensor is provided with a first dispersion detector; the first dispersion detector is used for detecting the dispersion fringes;
the first dispersion detector is a partial area of the first image sensor or an independent detector;
preferably, the second image sensor is provided with a second dispersion detector; the second dispersion detector is used for detecting the dispersion fringes;
the second dispersion detector is a partial area of the second image sensor or a separate detector.
Preferably, the spectrometer is arranged inside the 3D camera;
or the spectrometer is arranged at one end or one side face of the 3D camera, and the light inlet of the spectrometer is the same as the light inlet of the first imaging module and the light inlet of the second imaging module in direction.
Preferably, the light projector employs a discrete light beam projector for projecting a plurality of discrete collimated light beams towards the target object;
the first imaging module is used for receiving the scattered and collimated light beams reflected by the target object and obtaining the depth image of the surface of the target object according to a light spot pattern formed by a plurality of the scattered and collimated light beams.
Preferably, the light projector employs a surface light source projector for projecting floodlight towards the target object;
and the first imaging module is used for receiving floodlight reflected by the target object and obtaining a depth image of the surface of the target object according to the propagation time of the floodlight.
Preferably, the discrete beam projector comprises an edge-emitting laser and a beam projector disposed on an optical path;
the edge-emitting laser is used for projecting laser to the beam projector;
the beam projector is used for projecting the incident laser light into a plurality of discrete collimated light beams.
Preferably, the discrete beam projector comprises a laser array, a collimating lens and a beam splitting device arranged on an optical path;
the laser array is used for projecting laser of a first order of magnitude to the collimating lens;
the collimating lens is used for collimating the incident multiple laser beams and then emitting collimated light beams with a first order of magnitude;
the beam splitting device is used for splitting the incident collimated light beam with the first order of magnitude to emit a collimated light beam with a second order of magnitude;
the second order of magnitude is greater than the first order of magnitude.
Preferably, the 3D camera comprises a driving circuit connected to the light projector and the second imaging module;
the driving circuit is used for controlling the light projector and the second imaging module to be simultaneously turned on or off and controlling the output light power of the light projector by controlling the driving current of the light projector.
According to the utility model provides an electronic equipment, include 4D camera device.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model integrates the spectrometer and the 3D camera together, so that the user can conveniently and rapidly call the spectrometer and the 3D camera simultaneously or respectively, and the application scene of the utility model is enlarged; the utility model realizes the integration of the spectrograph and the 3D camera by arranging the dispersion element on the light-in side surface, the light-out side surface or the light-sensitive surface of the image sensor, thereby reducing the integration cost of the utility model; when using the utility model discloses the time, can with the utility model discloses on spectrometer and 3D camera loaded the electronic equipment, reduced electronic equipment's manufacturing cost. The utility model discloses in not only can carry out the combination application of spectrum appearance and 3D camera, can also call spectrum appearance and 3D camera alone, if call spectrum appearance alone and carry out each composition content in food safety monitoring, the detection of fruit composition, the milk, protein content in the body-building beverage even human fat content etc..
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts. Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a 4D camera device in an embodiment of the present invention;
fig. 2 is a schematic structural view of a 4D imaging device according to a first modification of the present invention;
fig. 3 is a working schematic diagram of a spectrometer in a modification of the present invention;
fig. 4 is a schematic structural view of a 4D imaging device according to a second modification of the present invention;
fig. 5 is a schematic structural view of a 4D imaging device according to a third modification of the present invention;
fig. 6 is a schematic structural view of a 4D imaging device according to a fourth modification of the present invention;
fig. 7 is a schematic structural view of a 4D imaging device according to a fifth modification of the present invention;
fig. 8 is a schematic structural view of a 4D imaging device according to a sixth modification of the present invention;
fig. 9 is a schematic structural diagram of an image sensor according to an embodiment of the present invention.
In the figure:
1 is a lens of a 3D camera; 101 is a light projector; 102 is a second imaging module; 103 is a first imaging module; 104 is a driving circuit; 105 is a processor module; 1031 is a first filter; 1032 is the first image sensor; 1033 is a dispersion detector; 2 is a spectrometer; 201 is a dispersive element; 3 is a lens of the RGB camera; 301 is a second filter segment; 302 is a second image sensor.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The connection may be for fixation or for circuit connection.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiment of the utility model, the 4D camera device provided by the utility model comprises a spectrometer and a 3D camera;
the 3D camera comprises a light projector 101, a first imaging module 103 and a second imaging module 102;
the light projector 101 for projecting light to a target object;
the first imaging module 103 is configured to receive reflected light of the target object, and obtain a depth image of the surface of the target object according to the reflected light;
the second imaging module 102 is configured to acquire a 2D image of the target object;
the spectrometer 2 is configured to receive the target object reflected light and generate spectral information of the target object reflected light.
In the embodiment of the utility model, the utility model provides an in, the utility model discloses a be in the same place spectrum appearance and 3D camera are integrated for the user can be convenient to spectrum appearance and 3D camera simultaneously or call respectively, enlarged the utility model discloses an use the scene.
Above is the core thought of the utility model, for making the above-mentioned purpose, characteristic and advantage of the utility model can be more obvious understandable, will combine below in the embodiment of the utility model the drawing, to technical scheme in the embodiment of the utility model is clear, completely describe, obviously, the embodiment that describes is only a partial embodiment of the utility model, rather than whole embodiment. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a 4D camera device in an embodiment of the present invention, as shown in fig. 1, the 4D camera device provided by the present invention includes a spectrometer 2, a 3D camera 1 and a processor module 105;
the 3D camera 1 comprises a light projector 101, a first imaging module 103 and a second imaging module 102;
the light projector 101 for projecting light to a target object;
the first imaging module 103 is configured to receive reflected light of the target object, and obtain a depth image of the surface of the target object according to the reflected light;
the second imaging module 102 is configured to acquire a 2D image of the target object;
the spectrometer 2 is used for receiving the target object reflected light and generating spectral information of the target object reflected light;
the processor module 105 is configured to generate a 3D image of the target object according to the depth image of the surface of the target object and the 2D image, and further perform color processing on the 3D image according to the spectral information.
The spectrometer 2 is arranged at one end or one side surface of the 3D camera 1;
the light inlets of the spectrometer 2 and the first imaging module 103 and the second imaging module 102 are in the same direction.
In the embodiment of the present invention, the spectrometer 2 is disposed at the lower end of the 3D camera 1, and the spectrometer 2 and the 3D camera 1 are an integrated structure. The spectrometer 2 may be an active spectrometer, for example, the spectrometer has a light projector, and receives the light reflected by the target object after projecting light to the target object to generate spectrum information, or a passive spectrometer, which receives the light reflected by the target object after being irradiated by ambient light to generate spectrum information. The target object reflected light includes reflection of ambient light by the target object and/or reflection of projected light by the light projector 101 by the target object.
In an embodiment of the present invention, the light projector 101 employs a discrete light beam projector for projecting a plurality of discrete collimated light beams toward the target object;
the first imaging module 103 is configured to receive the divergent beams reflected by the target object and obtain the depth image of the target object surface according to a spot pattern formed by a plurality of the divergent beams.
The first imaging module 103 adopts an infrared camera, when the light projector 101 divides the laser emitted by the edge emitting laser into a plurality of discrete collimated light beams, and the plurality of discrete collimated light beams irradiate on the target object, a light spot image is formed, when the plurality of discrete collimated light beams irradiate on the surface of the target object, the light spot image is deformed or displaced, and after the first imaging module 103 acquires the light spot pattern on the surface of the target object, a depth image of the surface of the target object is obtained according to the deformation or displacement of the light spot pattern, so that the depth information of the surface of the target object, which is uneven, is obtained.
In one embodiment of the present invention, the discrete beam projector includes an edge-emitting laser and a beam projector disposed on an optical path;
the edge-emitting laser is used for projecting laser to the beam projector;
the beam projector is used for projecting the incident laser light into a plurality of discrete collimated light beams.
The number of discrete collimated light beams is between two and tens of thousands of beams, such as 2 to 10 thousands of beams.
In an embodiment of the present invention, the discrete light beam projector includes a laser array, a collimating lens and a beam splitter disposed on a light path;
the laser array is used for projecting laser of a first order of magnitude to the collimating lens;
the collimating lens is used for collimating the incident multiple laser beams and then emitting collimated light beams with a first order of magnitude;
the beam splitting device is used for splitting the incident collimated light beam with the first order of magnitude to emit a collimated light beam with a second order of magnitude;
the second order of magnitude is greater than the first order of magnitude.
In an embodiment of the invention, the second order of magnitude is one to two times the first order of magnitude.
In the embodiment of the present invention, the Laser array may be formed by a plurality of Vertical Cavity Surface Emitting Lasers (VCSEL) or a plurality of Edge Emitting Lasers (EEL). A plurality of laser beams can become highly parallel collimated beams after passing through the collimating lens. According to the requirement of practical application, the beam splitting device can be adopted to realize more collimated beams according to the quantity of the discrete beams. The beam splitting device may employ a diffraction grating (DOE), a Spatial Light Modulator (SLM), and the like.
In an embodiment of the present invention, the light projector 101 is a surface light source projector for projecting floodlight to the target object; the surface light source projector adopts an LED light source. In a variant, other light sources, such as infrared light sources, may also be used.
The first imaging module 103 is configured to receive floodlight reflected by the target object, and obtain a depth image of the surface of the target object according to a propagation time of the floodlight.
In an embodiment of the present invention, the floodlight projected by the surface light source projector is reflected by the target object, and is received by the first imaging module 103 after being partially reflected, and each optical detector in the first imaging module 103 can obtain the time of flight t from the emission to the reception of the corresponding light beam, so as to obtain the flight distance s ═ ct of the collimated light beam through the light speed c, thereby being capable of measuring the depth information of the surface position of the target object. The depth data points of these locations construct point cloud data that can replicate the 3D morphology of the object, enabling 3D imaging of the target object.
In the embodiment of the present invention, the 3D camera 1 includes a driving circuit 104 connected to the light projector 101 and the second imaging module 102;
the driving circuit 104 is configured to control the light projector 101 and the second imaging module 102 to be turned on or off simultaneously, and can control the output optical power of the light projector 101 by controlling the driving current of the light projector 101.
The driving circuit 104 may be a separate dedicated circuit, such as a dedicated SOC chip, an FPGA chip, an ASIC chip, etc., or may include a general-purpose processor, for example, when the depth camera is integrated into an intelligent terminal, such as a mobile phone, a television, a computer, etc., a processor in the terminal may be at least a part of the processing circuit.
In the present modification, the spectrometer 2 may be further disposed inside the 3D camera 1, as shown in fig. 2, fig. 2 is a schematic structural diagram of a 4D imaging device in a first modification of the present invention, and those skilled in the art can understand the first modification as a variation of the embodiment shown in fig. 1, where the first imaging module 103 includes a first optical filter 1031 and a first image sensor 1032;
the spectrometer 2 comprises a dispersion element 201, wherein the dispersion element 201 is used for carrying out dispersion and light splitting on the reflected light so as to form dispersion stripes with sequentially arranged wavelengths on the first image sensor;
the dispersive element 201 is disposed on the light incident side of the first filter 1031.
The dispersive element 201 adopts a planar diffraction grating, a prism or an optical waveguide device.
Fig. 3 is a schematic diagram of the spectrometer in the variation of the present invention, as shown in fig. 3, the incident light passes through the dispersive element 201 and then is dispersed to form the dispersion fringes with sequentially arranged wavelengths, the partial region of the image sensor 1032 detects the dispersion fringes, and then the processor module 105 draws a spectrum curve according to the optical signal detected by the partial region of the image sensor 1032.
Fig. 4 is a schematic structural view of a 4D imaging device according to a second modification of the present invention; a person skilled in the art can understand this second variation as a variation of the embodiment shown in fig. 2, and as shown in fig. 4, the first imaging module 103 includes a first optical filter 1031 and a first image sensor 1032;
the spectrometer 2 comprises a dispersion element 201, wherein the dispersion element 201 is used for carrying out dispersion and light splitting on the reflected light so as to form dispersion stripes with sequentially arranged wavelengths on the first image sensor;
the dispersive element 201 is arranged on the light exit side of the first filter 1031.
Fig. 5 is a schematic structural diagram of a 4D imaging apparatus according to a third modification of the present invention, and those skilled in the art can understand this third modification as a modification of the embodiment shown in fig. 2, and as shown in fig. 5, the first imaging module 103 includes a first optical filter 1031 and a first image sensor 1032;
the spectrometer 2 comprises a dispersion element 201, wherein the dispersion element 201 is used for carrying out dispersion and light splitting on the reflected light so as to form dispersion stripes with sequentially arranged wavelengths on the first image sensor;
the dispersive element 201 is disposed on the light entrance side of the first image sensor 1032.
Fig. 6 is a schematic structural view of a 4D imaging device according to a fourth modification of the present invention; a person skilled in the art can understand this fourth modification as a variation of the embodiment shown in fig. 2, and as shown in fig. 6, the second imaging module 102 includes a second filter 301 and a second image sensor 302;
the spectrometer 2 includes a dispersion element 201, and the dispersion element 201 is configured to perform dispersion splitting on the target object reflected light to form dispersion fringes with sequentially arranged wavelengths on the second image sensor;
the dispersion element 201 is disposed on the light incident side of the second filter 301.
In a fourth modification of the present invention, the second imaging module 102 employs an RGB camera.
Fig. 7 is a schematic structural view of a 4D imaging device according to a fifth modification of the present invention; a person skilled in the art can understand this fourth modification as a variation of the embodiment shown in fig. 2, and as shown in fig. 7, the second imaging module 102 includes a second filter 301 and a second image sensor 302;
the spectrometer 2 includes a dispersion element 201, and the dispersion element 201 is configured to perform dispersion splitting on the target object reflected light to form dispersion fringes with sequentially arranged wavelengths on the second image sensor;
the dispersive element 201 is arranged on the light exit side of the second filter 301.
In a fifth modification of the present invention, the second imaging module 102 employs an RGB camera.
Fig. 8 is a schematic structural view of a 4D imaging device according to a sixth modification of the present invention; a person skilled in the art can understand this fourth modification as a variation of the embodiment shown in fig. 8, and as shown in fig. 6, the second imaging module 102 includes a second filter 301 and a second image sensor 302;
the spectrometer 2 includes a dispersion element 201, and the dispersion element 201 is configured to perform dispersion splitting on the target object reflected light to form dispersion fringes with sequentially arranged wavelengths on the second image sensor;
the dispersive element 201 is arranged on a light sensitive surface of the second image sensor 302.
In a sixth modification of the present invention, the second imaging module 102 employs an RGB camera.
Fig. 9 is a schematic structural diagram of an image sensor according to an embodiment of the present invention, and as shown in fig. 9, the first image sensor 1032 is provided with a dispersion detector 1033; the dispersion detector 1033 is configured to detect the dispersion fringes. The dispersion detector 1033 may be a part of the first image sensor 1032 or may be a separate detector disposed on the second image sensor 302 of the first image sensor 1032. In the embodiment of the present invention, the first image sensor 1032 is a contact image sensor, and may also be a CDD or CMOS image sensor. The second image sensor 302 has the same structure as the first image sensor 1032.
When the 4D camera device provided by the utility model is used, the spectrometer and the 3D camera can be used together, so that the 3D image collected by the 3D camera can be subjected to color processing according to the spectral information acquired by the spectrometer, and the color of the 3D image is more real; the utility model discloses in not only can carry out the combination application of spectrum appearance and 3D camera, can also call spectrum appearance and 3D camera alone, if call spectrum appearance alone and carry out each composition content in food safety monitoring, the detection of fruit composition, the milk, protein content in the body-building beverage even human fat content etc.. The utility model discloses a set up dispersion element on the income light side of light filter, on the light-emitting side or image sensor's light is sensitive on the surface, realize the integration of spectrum appearance and 3D camera, reduced the utility model discloses an integration cost.
In an embodiment of the present invention, the utility model provides an electronic device, include 4D camera device. Namely, the 4D camera device can be attached to an electronic device, which may be a mobile phone, a tablet computer, a digital camera, and the like.
In the embodiment of the utility model, the utility model discloses an integrate spectrometer and 3D camera together, make the user can be convenient call spectrometer and 3D camera simultaneously or respectively, enlarged the utility model discloses an application scene; the utility model realizes the integration of the spectrometer and the 3D camera by arranging the dispersion element on the light incident side surface, the light emergent side surface or the light incident side surface of the optical filter, thereby reducing the integration cost of the utility model; when using the utility model discloses the time, can with the utility model discloses on spectrometer and 3D camera loaded the electronic equipment, reduced electronic equipment's manufacturing cost.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A4D camera device is characterized by comprising a spectrometer and a 3D camera;
the 3D camera comprises a light projector, a first imaging module and a second imaging module;
the light projector is used for projecting light to a target object;
the first imaging module is used for receiving the reflected light of the target object and obtaining a depth image of the surface of the target object according to the reflected light;
the second imaging module is used for acquiring a 2D image of the target object;
the spectrometer is used for receiving the target object reflected light and generating spectral information of the target object reflected light.
2. The 4D imaging apparatus according to claim 1, wherein the first imaging module includes a first filter and a first image sensor;
the spectrometer comprises a dispersion element, wherein the dispersion element is used for carrying out dispersion and light splitting on the reflected light so as to form dispersion stripes with sequentially arranged wavelengths on the first image sensor;
the dispersion element is arranged on the light-in side face, the light-out side face or the light-sensitive surface of the first optical filter.
3. The 4D image capturing apparatus according to claim 1, wherein the second imaging module includes a second filter and a second image sensor;
the spectrometer comprises a dispersion element, wherein the dispersion element is used for carrying out dispersion and light splitting on the reflected light of the target object so as to form dispersion stripes with sequentially arranged wavelengths on the second image sensor;
the dispersion element is arranged on the light-in side face, the light-out side face or the light-sensitive surface of the second optical filter.
4. The 4D imaging apparatus according to claim 2 or 3, wherein the dispersion element employs a planar diffraction grating, a prism, or an optical waveguide device.
5. 4D camera device according to claim 2, characterized in that the first image sensor is provided with a first dispersion detector; the first dispersion detector is used for detecting the dispersion fringes;
the first dispersion detector is a partial area of the first image sensor or a separate detector.
6. The 4D camera device according to claim 1, wherein the spectrometer is disposed inside the 3D camera;
or the spectrometer is arranged at one end or one side face of the 3D camera, and the light inlet of the spectrometer is the same as the light inlet of the first imaging module and the light inlet of the second imaging module in direction.
7. The 4D camera device of claim 1, wherein the light projector employs a discrete light beam projector for projecting a plurality of discrete collimated light beams toward a target object;
the first imaging module is used for receiving the scattered and collimated light beams reflected by the target object and obtaining the depth image of the surface of the target object according to a light spot pattern formed by a plurality of the scattered and collimated light beams.
8. The 4D camera device of claim 1, wherein the light projector employs a surface light source projector for projecting floodlight toward the target object;
and the first imaging module is used for receiving floodlight reflected by the target object and obtaining a depth image of the surface of the target object according to the propagation time of the floodlight.
9. The 4D camera device of claim 7, wherein the discrete beam projector includes an edge-emitting laser and a beam projector disposed on an optical path;
the edge-emitting laser is used for projecting laser to the beam projector;
the beam projector is used for projecting the incident laser light into a plurality of discrete collimated light beams.
10. An electronic apparatus characterized by comprising the 4D image pickup device according to any one of claims 1 to 9.
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| CN201922073441.5U CN211785087U (en) | 2019-11-22 | 2019-11-22 | 4D camera device and electronic equipment |
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| CN201922073441.5U CN211785087U (en) | 2019-11-22 | 2019-11-22 | 4D camera device and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422796A (en) * | 2020-11-17 | 2021-02-26 | 维沃移动通信有限公司 | Camera structure, camera control method and device and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112422796A (en) * | 2020-11-17 | 2021-02-26 | 维沃移动通信有限公司 | Camera structure, camera control method and device and electronic equipment |
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