CN116614615A - Parallax image acquisition method, device, equipment and storage medium - Google Patents
Parallax image acquisition method, device, equipment and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000004590 computer program Methods 0.000 claims description 17
- 238000003491 array Methods 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 210000004556 brain Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- 238000003384 imaging method Methods 0.000 description 2
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- 238000013473 artificial intelligence Methods 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/271—Image signal generators wherein the generated image signals comprise depth maps or disparity maps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/128—Adjusting depth or disparity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/246—Calibration of cameras
Abstract
The invention discloses a parallax image acquisition method, a parallax image acquisition device, parallax image acquisition equipment and a storage medium. The method comprises the steps of carrying out image acquisition on an object to be acquired by utilizing a camera array which is pre-constructed and arranged to be a spherical surface and the optical axis of each camera points to the spherical center; and acquiring a parallax image matched with the object to be acquired. The technical scheme of the embodiment of the invention can realize the acquisition of the parallax images in a large angle range and improve the parallax image quality.
Description
Technical Field
The present invention relates to the field of three-dimensional holographic display technologies, and in particular, to a parallax image acquisition method, apparatus, device, and storage medium.
Background
The three-dimensional holographic display technology can completely record and reconstruct the wave front of a three-dimensional object, and is essentially to use discrete two-dimensional parallax images to infinitely approximate a continuous real three-dimensional object, and form a three-dimensional effect through the binocular parallax principle. The quality and the number of the obtained parallax images directly determine the viewing effect of the hologram, and the parallax image obtaining method is particularly critical. The image source applied to hologram production needs to provide image information having all parallax positions of the three-dimensional object. The existing parallax image acquisition methods that can be used for holographic printing at present can be summarized mainly into two types: a general camera model and a rotational camera model.
As shown in fig. 1a, a general camera model is a large-view-field camera with a fixed view-field angle, wherein the camera faces an object and keeps an optical axis perpendicular to the plane of the object, and the camera moves on a horizontal or vertical guide rail at equal intervals to obtain parallax images of a scene at different positions; as shown in fig. 1b, the parallax image array is acquired by rotating the camera model while the camera moves on the guide rail at equal intervals, so that the optical axis of the camera always passes through the center of the object to be sampled.
The inventors have found that the following drawbacks exist in the prior art in the process of implementing the present invention:
the general camera model adopts a camera with a fixed large angle of view, so that the distortion is larger, and secondly, the occupied part of an object in an obtained parallax image (particularly at the edge position) is smaller, the black background area is larger, which is equivalent to reducing the resolution of the parallax image; the object plane collected by the rotary camera model is not parallel to a CCD (Charge-coupled Device) of the camera, and the problems of trapezoidal distortion and near-large-far-small distortion of image information exist.
Disclosure of Invention
The invention provides a parallax image acquisition method, a parallax image acquisition device, parallax image acquisition equipment and a storage medium, so that the acquisition of a parallax image in a large angle range is realized, and the parallax image quality is improved.
According to an aspect of the present invention, there is provided a parallax image acquisition method including:
image acquisition is carried out on the object to be acquired by utilizing a camera array constructed in advance;
the camera arrays are arranged on a spherical surface, and the optical axis of each camera in the camera arrays points to the sphere center of the sphere;
and acquiring a parallax image matched with the object to be acquired.
According to another aspect of the present invention, there is provided an acquisition apparatus of parallax images, the apparatus including:
the image acquisition module is used for acquiring images of objects to be acquired by utilizing a camera array constructed in advance;
the camera arrays are arranged on a spherical surface, and the optical axis of each camera in the camera arrays points to the sphere center of the sphere;
and the parallax image acquisition module is used for acquiring a parallax image matched with the object to be acquired.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform the parallax image acquiring method according to any one of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a processor to execute the parallax image acquiring method according to any one of the embodiments of the present invention.
According to the technical scheme, the image acquisition is carried out on the object to be acquired by utilizing the camera array which is pre-constructed and arranged to be the spherical surface and the optical axis of each camera points to the spherical center; the technical means for acquiring the parallax images matched with the object to be acquired solves the problems of large distortion, low pixel utilization rate and low resolution of the acquired parallax images caused by the fact that a large-view-field camera is fixed or an object acquisition plane is not parallel to a CCD of the camera at present, can acquire the parallax images in a large angle range, and improves the parallax image quality.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1a is a schematic diagram of a typical camera model sampling of the prior art;
FIG. 1b is a prior art sample schematic of a rotational camera model;
fig. 1c is a flowchart of a parallax image obtaining method according to a first embodiment of the present invention;
fig. 1d is a schematic layout diagram of a camera array according to a first embodiment of the present invention;
fig. 1e is a schematic diagram of a relationship between a focal length of a camera and a pixel utilization ratio of an object to be collected according to a first embodiment of the present invention;
FIG. 1f is a position of a holographic film corresponding to a three-dimensional image center of a hologram with zero parallax according to an embodiment of the present invention;
FIG. 1g is a schematic illustration showing a position of a holographic film corresponding to a positive parallax provided in the first embodiment of the present invention;
FIG. 1h is a position of a hologram three-dimensional image center at a holographic film corresponding to negative parallax provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a parallax image acquiring apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device implementing a parallax image acquiring method according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1c is a flowchart of a parallax image acquisition method provided in the first embodiment of the present invention, where the method may be applied to a case of acquiring a parallax image of an object, and the method may be performed by a parallax image acquisition device, where the parallax image acquisition device may be implemented in hardware and/or software, and the parallax image acquisition device may be configured in smart devices and servers such as a mobile phone, a tablet, and a computer. As shown in fig. 1c, the method comprises:
s110, image acquisition is carried out on the object to be acquired by utilizing a camera array constructed in advance.
Wherein the camera array is arranged as a spherical surface, the optical axis of each camera in the camera array is directed towards the center of the sphere, and the arrangement of the camera array can be exemplified as shown in fig. 1 d.
Optionally, the field angle of each camera in the camera array is 2ω, and the size of the object to be collected is a; the focal length f of each camera may satisfy:
in order to obtain a high-quality parallax image, the camera can select a camera with high resolution and long focal length as much as possible. The corresponding relation among the camera view field angle, the focal length and the size (maximum size) of the object to be acquired can be as satisfied as possible:therefore, the object to be collected occupies the pixels of the camera as much as possible, and the utilization rate of the pixels of the camera is improved. On the premise of the same camera chip and resolution, the relation between the focal length f and the pixel utilization ratio of the object to be acquired can be shown as a figure 1e, wherein the figure 1e (a) is +.>When the object information to be collected occupies part of pixels; FIG. 1e (b) is +.>When the object information to be collected basically occupies the pixel number; FIG. 1e (c) is +.>When the information of the object to be acquired is larger than the number of pixels, the information of the object to be acquired is lost.
Alternatively, the radius R of the sphere may satisfy: r > 100f.
To obtain a better imaging effect, the distance between the lens and the object to be acquired, i.e. the radius R of the ball array, should be much larger than 100f according to an empirical value.
Optionally, the angular interval γ of the camera array arrangement satisfies: gamma is more than or equal to 1 '< 20'; the horizontal view field alpha of the camera array layout angle meets the requirement: alpha is more than or equal to 90 degrees and less than or equal to 180 degrees; the vertical field of view β of the camera array deployment angle satisfies: beta is more than or equal to 90 degrees and less than or equal to 180 degrees; the number of columns P of the camera array satisfies:the number of rows H of the camera array satisfies: />
The number and the precision of the camera arrays determine the precision and the range of parallax image acquisition, and influence the continuity and the observable angle of holographic image observation, which are key to the information sampling capacity. The higher the sampling precision of the information is, the smaller the interval is, the more accurate the sampled information can reflect the original continuous signal, but the higher requirements are put forward on the reconstruction, storage and transmission of the later information. In order to solve the two mutually opposite constraint factors, the nyquist sampling theorem (Nyquist Sampling Theorem) is taken as a guiding idea, the parallax resolution sampling theorem of the human eye light field is taken, and the angular interval of the camera array is 1 '. Ltoreq.gamma.ltoreq.20'. To obtain larger object information, the horizontal field of view of the camera array arrangement angle is 90 DEG-180 DEG, and the vertical field of view is 90 DEG-180 deg. The camera array column number is P, the row number is H, and the corresponding relation is:and->
S120, acquiring a parallax image matched with the object to be acquired.
Optionally, after acquiring the parallax image matched with the object to be acquired, the method may further include: utilizing the parallax image to manufacture a holographic image matched with the object to be acquired; wherein the holographic image is viewed through the holographic film.
Under the condition, when the center of the object to be acquired is coincident with the spherical center, the parallax image is a zero parallax image; correspondingly, the method for manufacturing the holographic image matched with the object to be acquired by utilizing the parallax image can comprise the following steps: utilizing the zero parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located on the holographic film.
In another case, when the center of the object to be collected is located behind the spherical center, the parallax image is a positive parallax image; correspondingly, the method for manufacturing the holographic image matched with the object to be acquired by utilizing the parallax image comprises the following steps: utilizing the positive parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located behind the holographic film.
In another case, when the center of the object to be collected is positioned in front of the spherical center, the parallax image is a negative parallax image; correspondingly, the method for manufacturing the holographic image matched with the object to be acquired by utilizing the parallax image comprises the following steps: utilizing the negative parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located in front of the holographic film.
The position relationship between the object to be acquired and the sphere center of the camera array determines positive parallax, negative parallax and zero parallax of the acquired parallax images. Fig. 1f, fig. 1g and fig. 1h show the positional relationship between the object to be collected and the center of the camera array and the correspondence relationship between the three-dimensional effect map synthesized by the two parallax maps. As shown in fig. 1f (a), when the center of the object a to be collected is coincident with the center C of the camera spherical array, the parallax is zero, and at this time, the three-dimensional image center of the three-dimensional hologram is at the position of the holographic film, as shown in fig. 1f (b). As shown in fig. 1g (a), when the center of the object a to be collected is located behind the center C of the camera spherical array, the object a is a positive parallax, and at this time, the center of the three-dimensional image of the three-dimensional hologram is located behind the holographic film, as shown in fig. 1g (b). As shown in fig. 1h (a), when the center of the object a to be collected is located in front of the center C of the camera spherical array, the object a is in negative parallax, and at this time, the center of the three-dimensional image of the three-dimensional hologram is in front of the holographic film, as shown in fig. 1h (b).
The three-dimensional image information obtained by the person is obtained by adjusting physiological factors, convergence, focusing and the like of the person, two images of an object with certain parallax are obtained, and a certain three-dimensional image effect with a three-dimensional structure is formed in the brain through the synthesis of the brain. For zero parallax, there is no need to move the eye to focus the object, as the object is on the surface of the display. However, for positive and negative parallax, the eyes must be moved to focus. If the two images are too far apart, focusing is difficult and will affect the viewing of the three-dimensional image. Too large a pupil distance makes focusing by human eyes difficult to reduce the stereoscopic effect, and only a specific range can generate a stereoscopic image with visual comfort. It is important to keep a proper interval between the positive and negative parallax images because a larger interval makes human eyes fatigued easily. Therefore, the adjustment range of eyes is not excessively large, and when the imaging interval of left and right eyes is larger than the interpupillary distance of human eyes, the brain is difficult to distinguish, and ghost images can be generated. The specific point 1, point 2 should not exceed the human eye distance (e.g. 60 mm).
According to the technical scheme, the image acquisition is carried out on the object to be acquired by utilizing the camera array which is pre-constructed and arranged to be the spherical surface and the optical axis of each camera points to the spherical center; the technical means for acquiring the parallax images matched with the object to be acquired solves the problems of large distortion, low pixel utilization rate and low resolution of the acquired parallax images caused by the fact that a large-view-field camera is fixed or an object acquisition plane is not parallel to a CCD of the camera at present, can acquire the parallax images in a large angle range, and improves the parallax image quality.
Example two
Fig. 2 is a schematic structural diagram of a parallax image acquiring apparatus according to a second embodiment of the present invention. As shown in fig. 2, the apparatus includes: an image acquisition module 210 and a parallax image acquisition module 220, wherein:
the image acquisition module 210 is configured to perform image acquisition on an object to be acquired by using a camera array constructed in advance;
the camera arrays are arranged on a spherical surface, and the optical axis of each camera in the camera arrays points to the sphere center of the sphere;
the parallax image obtaining module 220 is configured to obtain a parallax image matched with the object to be acquired.
According to the technical scheme, the image acquisition is carried out on the object to be acquired by utilizing the camera array which is pre-constructed and arranged to be the spherical surface and the optical axis of each camera points to the spherical center; the technical means for acquiring the parallax images matched with the object to be acquired solves the problems of large distortion, low pixel utilization rate and low resolution of the acquired parallax images caused by the fact that a large-view-field camera is fixed or an object acquisition plane is not parallel to a CCD of the camera at present, can acquire the parallax images in a large angle range, and improves the parallax image quality.
Optionally, the field angle of each camera in the camera array is 2ω, and the size of the object to be collected is a;
the focal length f of each camera satisfies:
the radius R of the sphere satisfies: r > 100f.
Optionally, the angular interval γ of the camera array arrangement satisfies: gamma is more than or equal to 1 '< 20';
the horizontal field of view alpha of the camera array deployment angle satisfies: alpha is more than or equal to 90 degrees and less than or equal to 180 degrees;
the vertical field of view beta of the camera array deployment angle satisfies: beta is more than or equal to 90 degrees and less than or equal to 180 degrees;
the number of columns P of the camera array satisfies:
the number of rows H of the camera array satisfies:
optionally, the parallax image acquiring device further includes a holographic image making module, configured to, after acquiring the parallax image matched with the object to be acquired:
utilizing the parallax image to manufacture a holographic image matched with the object to be acquired;
wherein the holographic image is viewed through a holographic film.
Optionally, when the center of the object to be collected is coincident with the center of the sphere, the parallax image is a zero parallax image;
correspondingly, the holographic image making module can be specifically used for:
utilizing the zero parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located on the holographic film.
Optionally, when the center of the object to be collected is located behind the spherical center, the parallax image is a positive parallax image;
correspondingly, the holographic image making module can be specifically used for:
utilizing the positive parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located behind the holographic film.
Optionally, when the center of the object to be collected is located in front of the spherical center, the parallax image is a negative parallax image;
correspondingly, the holographic image making module can be specifically used for:
utilizing the negative parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located in front of the holographic film.
The parallax image acquisition device provided by the embodiment of the invention can execute the parallax image acquisition method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example III
Fig. 3 shows a schematic diagram of an electronic device 300 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers and various forms of mobile devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 3, the electronic device 300 includes at least one processor 301, and a memory communicatively connected to the at least one processor 301, such as a Read Only Memory (ROM) 302, a Random Access Memory (RAM) 303, etc., in which the memory stores computer programs executable by the at least one processor, and the processor 301 may perform various suitable actions and processes according to the computer programs stored in the Read Only Memory (ROM) 302 or the computer programs loaded from the storage unit 308 into the Random Access Memory (RAM) 303. In the RAM 303, various programs and data required for the operation of the electronic device 300 may also be stored. The processor 301, the ROM 302, and the RAM 303 are connected to each other via a bus 304. An input/output (I/O) interface 305 is also connected to bus 304.
Various components in the electronic device 300 are connected to the I/O interface 305, including: an input unit 306 such as a keyboard, a mouse, etc.; an output unit 307 such as various types of displays, speakers, and the like; a storage unit 308 such as a magnetic disk, an optical disk, or the like; and a communication unit 309 such as a network card, modem, wireless communication transceiver, etc. The communication unit 309 allows the electronic device 300 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunication networks.
Processor 301 can be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 301 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 301 executes the respective methods and processes described above, for example, the parallax image acquisition method.
In some embodiments, the parallax image acquisition method may be implemented as a computer program, which is tangibly embodied on a computer-readable storage medium, such as the storage unit 308. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 300 via the ROM 302 and/or the communication unit 309. When the computer program is loaded into the RAM 303 and executed by the processor 301, one or more steps of the parallax image acquisition method described above may be performed. Alternatively, in other embodiments, the processor 301 may be configured to perform the parallax image acquisition method by any other suitable means (e.g. by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. A parallax image acquisition method, characterized by comprising:
image acquisition is carried out on the object to be acquired by utilizing a camera array constructed in advance;
the camera arrays are arranged on a spherical surface, and the optical axis of each camera in the camera arrays points to the sphere center of the sphere;
and acquiring a parallax image matched with the object to be acquired.
2. The method of claim 1, wherein the field angle of each camera in the array of cameras is 2 ω and the size of the object to be acquired is a;
the focal length f of each camera satisfies:
the radius R of the sphere satisfies: r > 100f.
3. The method of claim 1, wherein the angular spacing γ of the camera array arrangement satisfies: gamma is more than or equal to 1 '< 20';
the horizontal field of view alpha of the camera array deployment angle satisfies: alpha is more than or equal to 90 degrees and less than or equal to 180 degrees;
the vertical field of view beta of the camera array deployment angle satisfies: beta is more than or equal to 90 degrees and less than or equal to 180 degrees;
the number of columns P of the camera array satisfies:
the number of rows H of the camera array satisfies:
4. the method according to claim 1, further comprising, after acquiring the parallax image matching the object to be acquired:
utilizing the parallax image to manufacture a holographic image matched with the object to be acquired;
wherein the holographic image is viewed through a holographic film.
5. The method according to claim 4, wherein the parallax image is a zero parallax image when the center of the object to be collected coincides with the center of the sphere;
and utilizing the parallax image to manufacture a holographic image matched with the object to be acquired, comprising the following steps:
utilizing the zero parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located on the holographic film.
6. The method according to claim 4, wherein the parallax image is a positive parallax image when the center of the object to be collected is located behind the center of the sphere;
and utilizing the parallax image to manufacture a holographic image matched with the object to be acquired, comprising the following steps:
utilizing the positive parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located behind the holographic film.
7. The method according to claim 4, wherein the parallax image is a negative parallax image when the center of the object to be collected is located in front of the center of the sphere;
and utilizing the parallax image to manufacture a holographic image matched with the object to be acquired, comprising the following steps:
utilizing the negative parallax image to manufacture a holographic image matched with the object to be acquired; wherein the center of the holographic image is located in front of the holographic film.
8. An acquisition apparatus of a parallax image, characterized by comprising:
the image acquisition module is used for acquiring images of objects to be acquired by utilizing a camera array constructed in advance;
the camera arrays are arranged on a spherical surface, and the optical axis of each camera in the camera arrays points to the sphere center of the sphere;
and the parallax image acquisition module is used for acquiring a parallax image matched with the object to be acquired.
9. An electronic device, the electronic device comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the parallax image acquiring method according to any one of claims 1 to 7.
10. A computer-readable storage medium storing computer instructions for causing a processor to execute the parallax image acquiring method according to any one of claims 1 to 7.
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