CN114189670A - Display method, display device, display apparatus, and storage medium - Google Patents
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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
- H04N13/30—Image reproducers
- H04N13/366—Image reproducers using viewer tracking
- H04N13/383—Image reproducers using viewer tracking for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
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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
- H04N13/30—Image reproducers
- H04N13/324—Colour aspects
Abstract
The application discloses a display method, a display device and a storage medium, wherein the method comprises the following steps: acquiring a plurality of gray scale information of a target pixel point on an image to be displayed, wherein the gray scale information is that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field, and the depths of field are used for representing the distance between a user and the pixel point; determining target gray scale information of the target pixel point corresponding to the current depth of field based on the plurality of gray scale information; and displaying the target pixel point on a screen according to the target gray scale information. According to the method and the device, the plurality of gray scale information of the target pixel points on the image to be displayed serve as references for determining the target gray scale information of the target pixel points, so that more depth of field of the target pixel points can be recorded under the condition of limited screen resolution, information of the hologram is enriched, and the holographic display effect is better restored.
Description
Technical Field
The present application relates generally to the field of display technologies, and in particular, to a display method, a display apparatus, a display device, and a storage medium.
Background
Whether from black and white display to color display or from planar display to stereoscopic display, the effect presented by the display technology gradually approaches the most suitable viewing effect for human eyes, so as to meet the increasing demand of people.
Holographic Display (Holographic Display) records light waves emitted by an object in the form of interference fringes by utilizing the interference principle to obtain a hologram. Then the hologram is irradiated by light waves, and the original light waves are reproduced by utilizing the diffraction principle to form a vivid three-dimensional image. The recording of the hologram has extremely high requirements on the screen resolution, but the screen resolution is limited by process constraints, so that the holographic display effect is influenced.
Disclosure of Invention
In view of the above-mentioned drawbacks or deficiencies in the related art, it is desirable to provide a display method, a display device, a display apparatus, and a storage medium, which can improve the richness of hologram recording information under the condition of limited screen resolution, thereby better restoring the holographic display effect.
In a first aspect, the present application provides a display method, the method comprising:
acquiring a plurality of gray scale information of a target pixel point on an image to be displayed, wherein the gray scale information is that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field, and the depths of field are used for representing the distance between a user and the pixel point;
determining target gray scale information of the target pixel point corresponding to the current depth of field based on the plurality of gray scale information;
and displaying the target pixel point on a screen according to the target gray scale information.
Optionally, in some embodiments of the present application, the gray scale information is gray scale information of the target pixel point corresponding to a plurality of different depths of field and a plurality of different phases, respectively; the determining the target gray scale information of the target pixel point corresponding to the current depth of field based on the plurality of gray scale information includes:
and determining the target gray scale information of the target pixel point corresponding to the current depth of field and the current phase based on the plurality of gray scale information.
Optionally, in some embodiments of the present application, the current phase is determined by:
acquiring the watching angle of a user on the image to be displayed;
and taking the phase corresponding to the gazing angle as the current phase.
Optionally, in some embodiments of the present application, the obtaining of multiple pieces of gray scale information of a target pixel point on an image to be displayed includes:
respectively pre-storing a plurality of corresponding gray scale information aiming at all pixel points on the image to be displayed;
and determining the target pixel point from all the pixel points, and acquiring a plurality of gray scale information of the target pixel point.
Optionally, in some embodiments of the present application, determining the target pixel point from all the pixel points includes:
acquiring a watching area of a user on the image to be displayed;
and determining pixels in the gazing area in all the pixel points as the target pixel points.
In a second aspect, the present application provides a display device, the device comprising:
the display device comprises an acquisition module, a display module and a display module, wherein the acquisition module is configured to acquire a plurality of gray scale information of a target pixel point on an image to be displayed, the gray scale information is that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field, and the depths of field are used for representing distances between users and the pixel points;
the determining module is configured to determine target gray scale information of the target pixel point corresponding to the current depth of field based on the plurality of gray scale information;
and the display module is configured to display the target pixel point on a screen according to the target gray scale information.
Optionally, in some embodiments of the application, when the plurality of gray scale information is that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field and different phases, the determining module is further configured to:
and determining the target gray scale information of the target pixel point corresponding to the current depth of field and the current phase based on the plurality of gray scale information.
Optionally, in some embodiments of the present application, the determining module is further configured to obtain a gazing angle of a user on the image to be displayed;
and taking the phase corresponding to the gazing angle as the current phase.
Optionally, in some embodiments of the present application, the obtaining module is further configured to pre-store a plurality of corresponding pieces of gray scale information for all pixel points on the image to be displayed;
and determining the target pixel point from all the pixel points, and acquiring a plurality of gray scale information of the target pixel point.
Optionally, in some embodiments of the present application, the obtaining module is further configured to obtain a user's gaze region of the image to be displayed;
and determining pixels in the gazing area in all the pixel points as the target pixel points.
In a third aspect, the present application provides a display device comprising a processor and a memory, wherein the memory stores at least one instruction, at least one program, a set of codes, or a set of instructions, which are loaded and executed by the processor to implement the steps of the display method according to any one of the first aspect.
In a fourth aspect, the present application provides a computer readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps of the display method according to any one of the first aspect.
According to the technical scheme, the embodiment of the application has the following advantages:
the embodiment of the application provides a display method, a display device and a storage medium, wherein a plurality of pieces of gray scale information of a target pixel point on an image to be displayed are used as references for determining the target gray scale information of the target pixel point, the plurality of pieces of gray scale information are gray scale information of the target pixel point corresponding to a plurality of different depths of field respectively, and the depths of field are used for representing distances between users and the pixel point. Therefore, the embodiment of the application can record more depth of field of the target pixel point under the condition of limited screen resolution, further enrich the information of the hologram and better restore the holographic display effect.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic basic flowchart of a display method according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a setting of gray scale information according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a pixel sequence according to an embodiment of the present application;
FIG. 4 is a schematic diagram of another pixel sequence provided in the embodiments of the present application;
fig. 5 is an example of an application scenario provided in an embodiment of the present application;
fig. 6 is an example of another application scenario provided in an embodiment of the present application;
fig. 7 is a schematic diagram illustrating a setting of phase information according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of time division multiplexing according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described are capable of operation in sequences other than those illustrated or otherwise described herein.
Moreover, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of understanding and explanation, a display method, a display apparatus, a display device, and a storage medium provided in an embodiment of the present application are described in detail below with reference to fig. 1 to 9.
Please refer to fig. 1, which is a basic flowchart of a display method according to an embodiment of the present disclosure. The method comprises the following steps:
s101, obtaining a plurality of gray scale information of a target pixel point on an image to be displayed, wherein the gray scale information is that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field, and the depths of field are used for representing distances between users and the pixel points.
It should be noted that the image to be displayed in the embodiment of the present application may include, but is not limited to, an image that is taken immediately, or an image that has already been taken. The gray scale information may include, but is not limited to, luminance values and chrominance values of the pixel points. For example, as shown in fig. 2, it is a schematic diagram of setting gray scale information according to an embodiment of the present application. Taking the pixel points in the dotted line frame as the basic unit of a target pixel point, and regarding the target pixel point in the middle area, taking the gray scale information of 9 pixels including the target pixel point and the pixel points around the target pixel point as a plurality of gray scale information of the target pixel point; similarly, for the target pixel point in the four-side area, the gray scale information of 6 pixels including the target pixel point and the surrounding pixel points is used as the plurality of gray scale information of the target pixel point; for the target pixel points in the four corner regions, the gray scale information of 4 pixels including the target pixel point and the surrounding pixel points is used as the plurality of gray scale information of the target pixel point.
Alternatively, the actual resolution of the screen may be reduced after recording the plurality of gray scale information of the target pixel. For example, when the resolution of the screen is m × n (m and n are positive integers), the actual resolution is reduced to (m/3) × (n/3) through the recording of the gray scale information. Therefore, in some embodiments of the present application, the basic unit of the target pixel point can be split and colored, and the visual resolution can be improved by 2-3 times, so that more gray scale information can be recorded, and the holographic display effect is benefited. For example, as shown in fig. 3, when a Pixel point includes a red subpixel R, a green subpixel G, and a blue subpixel B, the embodiment of the present application may color the Pixel point by using a Sub-Pixel Rendering (SPR) algorithm. In the actual coloring process, the coloring sub-pixels need to borrow the surrounding sub-pixels, so as to color the original RGB sequence. The RGB sequence is converted into an RG sequence or a BG sequence, as shown in fig. 4, for example.
Optionally, in some embodiments of the present application, corresponding gray scale information may be respectively pre-stored for all pixel points on an image to be displayed, so as to determine a target pixel point from all the pixel points, and obtain the gray scale information of the target pixel point, thereby increasing processing speed, saving time, and further making subsequent display smoother and avoiding occurrence of jamming. Exemplarily, as shown in fig. 5, in the embodiment of the present application, a gazing area of an image to be displayed by a user is obtained, so as to determine pixels in the gazing area in all pixel points as target pixel points. For example, in the embodiment of the application, the gazing area of the eyes of the user can be determined through the cooperation of image acquisition equipment such as a camera and an eye tracking (eye tracking) model, and then only the image corresponding to the gazing area needs to be updated. The method has the advantages that the fixation point of human eyes is captured, the image of the fixation area is enhanced, high-quality images are presented, the images of the non-fixation areas are weakened, pixel loss of the non-fixation area records can be saved, the data processing speed is increased, the characteristics of human eyes are better met, and user experience is improved.
S102, determining target gray scale information of a target pixel point corresponding to the current depth of field based on the plurality of gray scale information.
For example, the embodiment of the present application calculates an average value of a plurality of gray-scale information as the target gray-scale information of the target pixel. Therefore, under the condition of limited screen resolution, more depth of field of the target pixel point can be recorded, the richness of the information of the hologram is improved, and the holographic display effect can be better restored.
Optionally, in some embodiments of the present application, when the plurality of pieces of gray scale information are pieces of gray scale information in which the target pixel point corresponds to a plurality of different depths of field and a plurality of different phases, respectively, the target gray scale information of the target pixel point corresponding to the current depth of field and the current phase may be determined based on the plurality of pieces of gray scale information. For example, as shown in fig. 6, in the embodiment of the present application, a gaze angle of a user to a to-be-displayed image is obtained, and a phase corresponding to the gaze angle is taken as a current phase. For example, the embodiment of the application can also determine the gaze angle of the human eye of the user through the cooperation of an image acquisition device such as a camera and an eyeball tracking model.
It should be noted that, for each gaze angle, as shown in fig. 7, the three-dimensional object may be divided into three directions, x, y, and z, each of which has a period of 360 °. For example, assuming that 10 nodes are recorded for each direction dimension, i.e., 10 circles, 10 × 10 — 1000 pieces of gray scale information with different phases can be recorded in total. The number of nodes may be set according to the actual storage size, which is not limited in the embodiment of the present application. Alternatively, for recording of different phases under the same gaze angle, the number of phase recording nodes may be increased according to the screen frame rate, for example, the screen frame rate is 120Hz for example, and if the number of the increased phase recording nodes is 4, please refer to fig. 8, where 4 consecutive frames respectively record holograms with 4 different phases, for example, the 1 st frame recording phase 1, the 2 nd frame recording phase 2, the 3 rd frame recording phase 3, and the 4 th frame recording phase 4, which corresponds to a display effect of 30Hz at this time. The 4 phase recording nodes can be set according to actual needs, for example, all the nodes are increased in the x direction, and then 14 × 10 — 1400 gray scale information of different phases can be recorded in total. The advantage of setting up like this is that, this application embodiment reduces frequency through the mode of time division multiplex, can record more information to holographic display effect has further been enriched. Preferably, the down-conversion recording type hologram display effect is more excellent for a static scene.
And S103, displaying the target pixel point on the screen according to the target gray scale information.
Illustratively, in the embodiment of the application, the hologram recorded with the target gray scale information is irradiated by the light wave, and the original object light wave corresponding to the image to be displayed is reproduced by utilizing the diffraction principle, so as to form a vivid three-dimensional image.
The embodiment of the application provides a display method, which comprises the steps of firstly, obtaining a plurality of gray scale information of a target pixel point on an image to be displayed, wherein the plurality of gray scale information are gray scale information of the target pixel point corresponding to a plurality of different depths of field respectively, and the depths of field are used for representing distances between users and the pixel point; then, determining target gray scale information of a target pixel point corresponding to the current depth of field based on the plurality of gray scale information; and then, displaying the target pixel point on the screen according to the target gray scale information. According to the embodiment of the application, the gray scale information of the target pixel point on the image to be displayed is used as the reference for determining the target gray scale information, so that more depth of field of the target pixel point can be recorded under the condition of limited screen resolution, the information of the hologram is enriched, and the holographic display effect is better restored.
Based on the foregoing embodiments, please refer to fig. 9, which is a schematic structural diagram of a display device according to an embodiment of the present application, and the display device can be applied to the display methods provided in the embodiments corresponding to fig. 1 to 8. As shown in fig. 9, the display device 900 includes:
the acquiring module 901 is configured to acquire a plurality of pieces of gray scale information of a target pixel point on an image to be displayed, where the plurality of pieces of gray scale information are gray scale information of the target pixel point corresponding to a plurality of different depths of field respectively, and the depths of field are used to represent distances between users and the pixel points;
a determining module 902, configured to determine target gray scale information of a target pixel point corresponding to a current depth of field based on a plurality of pieces of gray scale information;
and the display module 903 is configured to display the target pixel point on the screen according to the target gray scale information.
Optionally, in some embodiments of the present application, when the plurality of gray scale information indicates that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field and different phases, the determining module 902 is further configured to determine the target gray scale information of the target pixel point corresponding to the current depth of field and the current phase based on the plurality of gray scale information.
Optionally, in some embodiments of the present application, the determining module 902 is further configured to obtain a gazing angle of the user on the image to be displayed;
and taking the phase corresponding to the watching angle as the current phase.
Optionally, in some embodiments of the present application, the obtaining module 901 is further configured to pre-store a plurality of corresponding pieces of gray scale information for all pixel points on the image to be displayed;
and determining a target pixel point from all the pixel points, and acquiring a plurality of gray scale information of the target pixel point.
Optionally, in some embodiments of the present application, the obtaining module 901 is further configured to obtain a gazing area of the image to be displayed by the user;
and determining pixels in the injection area in all the pixel points as target pixel points.
The embodiment of the application provides a display device, which comprises an acquisition module, a display module and a display module, wherein the acquisition module is configured to acquire a plurality of pieces of gray scale information of a target pixel point on an image to be displayed, the plurality of pieces of gray scale information are gray scale information of the target pixel point corresponding to a plurality of different depths of field respectively, and the depths of field are used for representing distances between users and the pixel point; the determining module is configured to determine target gray scale information of a target pixel point corresponding to the current depth of field based on the plurality of gray scale information; and the display module is configured for displaying the target pixel point on the screen according to the target gray scale information. According to the embodiment of the application, the gray scale information of the target pixel point on the image to be displayed is used as the reference for determining the target gray scale information, so that more depth of field of the target pixel point can be recorded under the condition of limited screen resolution, the information of the hologram is enriched, and the holographic display effect is better restored.
Based on the foregoing embodiments, an embodiment of the present application further provides a display device, where the display device includes a processor and a memory, where the memory stores at least one instruction, at least one program, a code set, or an instruction set, and the instruction, the program, the code set, or the instruction set is loaded and executed by the processor to implement the steps of the display method in the embodiment corresponding to fig. 1 to 8.
As another aspect, an embodiment of the present application further provides a computer-readable storage medium for storing program code for executing any one implementation of the foregoing display method of various embodiments.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the module described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form. Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more units are integrated into one module. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented as a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium.
Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the display method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (12)
1. A method of displaying, the method comprising:
acquiring a plurality of gray scale information of a target pixel point on an image to be displayed, wherein the gray scale information is that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field, and the depths of field are used for representing the distance between a user and the pixel point;
determining target gray scale information of the target pixel point corresponding to the current depth of field based on the plurality of gray scale information;
and displaying the target pixel point on a screen according to the target gray scale information.
2. The method of claim 1, wherein the gray scale information is gray scale information corresponding to a plurality of different depths of field and a plurality of different phases respectively at the target pixel; the determining the target gray scale information of the target pixel point corresponding to the current depth of field based on the plurality of gray scale information includes:
and determining the target gray scale information of the target pixel point corresponding to the current depth of field and the current phase based on the plurality of gray scale information.
3. The method of claim 2, wherein the current phase is determined by:
acquiring the watching angle of a user on the image to be displayed;
and taking the phase corresponding to the gazing angle as the current phase.
4. The method of claim 1, wherein the obtaining the plurality of gray scale information of the target pixel point on the image to be displayed comprises:
respectively pre-storing a plurality of corresponding gray scale information aiming at all pixel points on the image to be displayed;
and determining the target pixel point from all the pixel points, and acquiring a plurality of gray scale information of the target pixel point.
5. The method of claim 4, wherein determining the target pixel point from the total number of pixel points comprises:
acquiring a watching area of a user on the image to be displayed;
and determining pixels in the gazing area in all the pixel points as the target pixel points.
6. A display device, characterized in that the device comprises:
the display device comprises an acquisition module, a display module and a display module, wherein the acquisition module is configured to acquire a plurality of gray scale information of a target pixel point on an image to be displayed, the gray scale information is that the target pixel point respectively corresponds to a plurality of gray scale information with different depths of field, and the depths of field are used for representing distances between users and the pixel points;
the determining module is configured to determine target gray scale information of the target pixel point corresponding to the current depth of field based on the plurality of gray scale information;
and the display module is configured to display the target pixel point on a screen according to the target gray scale information.
7. The apparatus of claim 6, wherein when the gray-scale information indicates that the target pixel point corresponds to gray-scale information of different depths of field and different phases, the determining module is further configured to:
and determining the target gray scale information of the target pixel point corresponding to the current depth of field and the current phase based on the plurality of gray scale information.
8. The apparatus of claim 7, wherein the determining module is further configured to obtain a user's gaze angle on the image to be displayed;
and taking the phase corresponding to the gazing angle as the current phase.
9. The apparatus according to claim 6, wherein the obtaining module is further configured to pre-store a plurality of corresponding gray scale information for all pixel points on the image to be displayed;
and determining the target pixel point from all the pixel points, and acquiring a plurality of gray scale information of the target pixel point.
10. The apparatus according to claim 9, wherein the acquiring module is further configured to acquire a user's gaze region of the image to be displayed;
and determining pixels in the gazing area in all the pixel points as the target pixel points.
11. A display device, characterized in that it comprises a processor and a memory in which at least one instruction, at least one program, set of codes or set of instructions is stored, which is loaded and executed by the processor to implement the steps of the display method according to any one of claims 1 to 5.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores one or more programs which are executable by one or more processors to implement the steps of the display method according to any one of claims 1 to 5.
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