CN112068791B - Storage method, addressing method and equipment for display data of rotary display equipment - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
- G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
- G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
Abstract
One or more embodiments of the present disclosure provide a method for storing display data of a rotary display device, an addressing method and a device thereof, where the display data is stored in a register in an "address+data" manner, and a conventional sequential point-by-point scan transmission is abandoned during display; the display data stored in the register marks the position information of the voxels, discards useless vacancy points, realizes accurate addressing, transmits the display data according to the address, and compresses the scanning time; in addition, by clipping the address, the occupation of communication bandwidth is reduced, the data volume of the form is ensured to be minimized, and the scanning rate is maximized.
Description
Technical Field
One or more embodiments of the present disclosure relate to the field of display technologies, and in particular, to a method for storing display data of a rotary display device, an addressing method and a device.
Background
The rotary display device can realize three-dimensional display, which is also called true three-dimensional display, wherein a display image is a three-dimensional picture which is positioned in a true three-dimensional space and is close to a real object, so that multiple people can watch the object image by naked eyes at multiple angles at the same time, and no auxiliary device is needed. However, the rotating display device in the related art refreshes the preprocessed picture at a high speed when displaying, and has complex operation, huge transmission data volume, and insufficient scanning speed.
Disclosure of Invention
In view of this, it is an object of one or more embodiments of the present disclosure to provide a method for storing display data of a rotary display device, an addressing method and a device.
In view of the above object, one or more embodiments of the present specification provide a method of storing display data of a rotary display device, the display data including: a plurality of slice images corresponding to a display phase of the rotary display device; each slice image comprises a number of voxels;
the method comprises the following steps:
setting a head address for the voxel; the head address represents a start storage address of the slice image to which the voxel belongs and represents a display phase corresponding to the slice image to which the voxel belongs;
determining an original offset address of the voxel according to the head address; the original offset address represents a relative storage address between the voxel and a start address of the slice image to which it belongs;
cutting the address bit width of the original offset address to obtain the offset address of the voxel;
constructing and obtaining a slice array by taking the voxels and the corresponding head address and offset address as elements; each row of the slice array corresponds to one slice image, and elements in each row correspond to voxels included in the corresponding slice image in a one-to-one sequence;
and storing the slice array into a register of a rotary display device.
Based on the same inventive concept, one or more embodiments of the present specification further provide an addressing method of display data of a rotary display device, including:
accessing a register; the register stores the slice array stored by the storage method of any one of claims 1 to 4;
extracting a head address of the voxel, and determining a display phase corresponding to the slice image to which the voxel belongs according to the head address;
extracting an offset address of the voxel, and carrying out address bit width complementation on the offset address to obtain an original offset address of the voxel;
and determining the storage position of the voxel in a register according to the head address and the original offset address.
Based on the same inventive concept, one or more embodiments of the present specification also provide a rotary display device including:
a register configured to store the slice array stored by the storage method according to any one of the above;
a processor configured to perform the addressing method of any of the above to obtain the head address and the original offset address; reading the voxels from the register according to the head address and the original offset address, and obtaining a plurality of slice images corresponding to each display phase according to the voxels;
a display panel connected to a rotation shaft and rotatable about the rotation shaft; the display panel is configured to display according to a number of the slice images.
As can be seen from the foregoing, the method for storing, the method for addressing and the device for storing display data of a rotary display device according to one or more embodiments of the present disclosure store the display data in a register in an "address+data" manner, and discard the conventional sequential point-by-point scan transmission during display; the display data stored in the register marks the position information of the voxels, discards useless vacancy points, realizes accurate addressing, transmits the display data according to the address, and compresses the scanning time; in addition, by clipping the address, the occupation of communication bandwidth is reduced, the data volume of the form is ensured to be minimized, and the scanning rate is maximized.
Drawings
For a clearer description of one or more embodiments of the present description or of the solutions of the prior art, the drawings that are necessary for the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only one or more embodiments of the present description, from which other drawings can be obtained, without inventive effort, for a person skilled in the art.
Fig. 1 is a schematic diagram of a display principle of a rotary display device;
FIG. 2 is a schematic diagram of a display phase of a rotary display device;
FIG. 3 is a flow diagram of a storage method in accordance with one or more embodiments of the present disclosure;
FIG. 4 is a schematic diagram of a first address and offset address construction process in one or more embodiments of the present disclosure;
FIG. 5 is a schematic diagram illustrating a slice array building process in one or more embodiments of the present disclosure;
FIG. 6 is a flow diagram of an addressing method of one or more embodiments of the present disclosure;
fig. 7 is a schematic structural diagram of a rotary display device according to one or more embodiments of the present disclosure.
Detailed Description
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
It is noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present disclosure should be taken in a general sense as understood by one of ordinary skill in the art to which the present disclosure pertains. The use of the terms "first," "second," and the like in one or more embodiments of the present description does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
As described in the background art, the rotating display device in the related art refreshes the preprocessed picture at a high speed during display, and has the problems of complex operation, huge transmission data volume, and unsatisfactory scanning speed. The applicant has found in the course of implementing the present disclosure that the rotary display device in the related art has the above problems because: the refresh rate of the rotary display device is high, the scanning speed is high, but the response time is short, and under the condition of high resolution, the single-point time is too short in the point-by-point scanning process, so that the charging cannot be completed. In addition, for 2D slice images, there are empty points without display data, which do not require data filling, and the scan time occupied by the empty points in the conventional progressive scan mode is a waste, which substantially affects the scan speed.
In view of the foregoing, one or more embodiments of the present disclosure provide a method for storing and addressing display data of a rotary display device and a corresponding rotary display device, where the display data is stored in a register in an "address+data" manner, and conventional sequential point-by-point scan transmission is abandoned during display; the display data stored in the register marks the position information of the voxels, discards useless vacancy points, realizes accurate addressing, transmits the display data according to the address, and compresses the scanning time; in addition, by clipping the address, the occupation of communication bandwidth is reduced, the data volume of the form is ensured to be minimized, and the scanning rate is maximized.
One or more embodiments of the present description relate to a rotary display device. Fig. 1 shows a definition of the display principle and the relevant quantities of a rotary display device. In a three-dimensional stereoscopic display, the smallest constituent element is a voxel. The rotary display device comprises a rotary shaft connected with a power source, a display panel is arranged on the rotary shaft, and the rotary shaft can drive the display panel to rotate under the driving of the power source. The display panels are symmetrically arranged by taking the rotation axis as a symmetry center, and correspondingly, each display phase displays two images on the opposite side of the rotation axis. Within one circle, a fixed angle position displays a specific 2D image, called a slice image. Fig. 2 is a schematic diagram of display phases of a rotary display device, which takes eight display phases, namely 2-2', 5-5' and the like, as an example, disposed within one circumference.
The following describes in detail, by way of specific embodiments, aspects of one or more embodiments of the present description.
First, one or more embodiments of the present specification provide a method of storing display data of a rotary display device. Referring to fig. 3, the method for storing display data of the rotary display device includes the steps of:
step S301, setting a head address for the voxels; the head address represents a start storage address of the slice image to which the voxel belongs and represents a display phase corresponding to the slice image to which the voxel belongs;
step S302, determining an original offset address of the voxel; the original offset address represents a relative storage address between the voxel and a start address of the slice image to which it belongs;
step S303, cutting the address bit width of the original offset address to obtain the offset address of the voxel;
step S304, constructing and obtaining a slice array by taking the voxels and the corresponding head address and offset address as elements; each row of the slice array corresponds to one slice image, and elements in each row correspond to voxels included in the corresponding slice image in a one-to-one sequence;
step S305, storing the slice array in a register of a rotary display device.
In the storage method of the embodiment, each slice image is abstracted into a row array, which is called as a slice array in the embodiment; the 3D scan may be equivalently a 2D progressive scan, accordingly. After 3D stereo display data are divided into 2D slice images, each slice image is not full data, and is used for displaying only part of the pixel number of the resolution characteristic, so that an empty site occupying clock resources exists; therefore, the empty points are discarded, the data structure is changed from single display data to address plus data, and the storage positions of the voxels are represented by the addresses, so that point-to-point operation is realized. However, the introduction of addressing enlarges the data volume, thus optimizing the addressing mode, and ensuring that the time consumption is less than that of the traditional progressive scanning with empty sites.
Specifically, according to the characteristics of the display data of the rotary display device and the rule of the data stored in the register, when the display data of the rotary display device is stored in the register, for any voxel, the theoretical format of the pixel should be: phase + head + offset + voxel are displayed. In this embodiment, for convenience of description, the voxels refer to the display data of the voxel pair.
In this embodiment, the theoretical address format is further optimized to realize a high-speed and efficient communication process. A simplified process of address format is shown with reference to fig. 4.
In this embodiment, since the storage space of the slice array is opened up for the user, and the initial storage address can be read in advance, the initial storage address can simultaneously represent the display phase, so in this embodiment, the data portion corresponding to the display phase is omitted, that is, the display phase corresponding to the slice image to which the voxel belongs is represented by the initial address set for the voxel. At the same time, it acts as the head address itself, which still represents the starting memory address of the slice image to which the voxel belongs. That is, the present embodiment will simplify the display phase+the head address in the theoretical format to use only the head address.
In this embodiment, the original offset address is first determined according to the first address of the voxel. The original offset address is obtained according to a rule of storing data by a register and is used for representing a relative storage address between the voxel and a start address of a slice image to which the voxel belongs. In this embodiment, the address bit width of the original offset address is cut to further reduce the data size.
In particular, during the display of the rotary display device, the distance from the rotation axis differs for different voxels within one slice image, which causes a difference in the linear velocity at which the different voxels rotate. If voxels of different line speeds are displayed with the same brightness, the display effect is poor. Aiming at the situation, in the display process, the same slice image is usually divided into areas, and different brightness compensation is carried out on voxels in different areas so as to make up for the display problem caused by different linear speeds. In the related art, for the original offset address of a voxel, its upper address generally represents the aforementioned partition, and its lower address generally represents the actual storage location of the voxel. In this embodiment, to further reduce the amount of data, the higher-order addresses are cut out of the data, and only the lower-order addresses representing the actual storage locations are reserved. Accordingly, in the addressing process, the high-order address is copied from a predetermined position by means of software processing, or generated by means of a predetermined algorithm rule. That is, the present embodiment uses the original offset address in the theoretical format, and uses the remaining low-order address as the offset address of the voxel by clipping off the high-order address.
In this embodiment, the format for storing in the register is obtained for each voxel in the manner described above. And constructing and obtaining a slice array by taking the data in the format as elements. Each row of the slice array corresponds to one slice image, and elements in each row correspond to voxels included in the corresponding slice image in a one-to-one order. The construction process of the slice array is shown with reference to fig. 5. The total number of the slice images is p, and each data is the format of the head address, the offset address and the voxel. Each slice image is a matrix of m x n, and after being constructed as a slice array, it corresponds to one row of the slice array.
And finally, storing the constructed slice array into a register of the rotary display device, namely finishing the storage of the display data of the embodiment.
Specifically, the slice array is stored in a register in units of rows. The continuous storage or the discontinuous storage may be selected corresponding to the line data corresponding to each slice image.
When continuously storing, continuously storing the slice array into a register in a row unit; correspondingly, only the first address is allocated to the voxels in the data corresponding to the first slice image, and the first addresses of the voxels in the data corresponding to the other slice images can be calculated according to the number of the voxels included in each slice image.
When the slice array is discontinuously stored, storing the slice array into a register in a row unit according to the sequence of display phases; correspondingly, for the row data corresponding to each slice image, the head addresses of the voxels in the row data are respectively set. For different slice images, if the number of voxels included in the slice images is different, if the uniform opening of the space with the same size is unfavorable for improving the resource utilization rate, and meanwhile, in order to fully utilize scattered storage space, a discontinuous storage mode is selected under the condition that the number of voxels included in each slice image is different.
According to the storage method, the display data is stored in the register in the mode of address and data, the display data is transmitted according to the address, the scanning time is shortened, the occupation of communication bandwidth is reduced through clipping the address, the data volume in the form is ensured to be minimized, and the scanning speed is maximized.
Based on the same inventive concept, one or more embodiments of the present specification also provide an addressing method of display data of a rotary display device. Referring to fig. 6, the method for addressing display data of a rotary display device includes the steps of:
step S601, accessing a register; the register stores the slice array stored by the storage method according to any one of the above embodiments;
step S602, extracting a head address of the voxel, and determining a display phase corresponding to the slice image to which the voxel belongs according to the head address;
step S603, extracting an offset address of the voxel, and carrying out address bit width complementation on the offset address to obtain an original offset address of the voxel;
step S604, determining a storage location of the voxel in a register according to the first address and the original offset address.
In this embodiment, the register is accessed and the slice array stored in the register is read by the addressing method. For each voxel, determining the display phase corresponding to the slice image to which the voxel belongs through the head address and the offset address, and obtaining the original offset address based on the offset address complement, thereby determining the storage position of the voxel in the register.
In this embodiment, the performing address bit width complementation on the offset address to obtain the original offset address of the voxel specifically includes: determining a low-order address according to the offset address; generating a high-order address corresponding to the low-order address according to a preset rule; and combining the high-order address and the low-order address to obtain an original offset address of the voxel. The predetermined rule is implemented by software processing, and can be copied from a predetermined position or generated by a predetermined algorithm rule.
In this embodiment, for two ways of continuous storage and discontinuous storage of slice arrays in units of rows, corresponding extraction and acquisition ways with different head addresses are provided.
Extracting a first address of the voxel corresponding to the first display phase from the slice array when the slice array is continuously stored in a register in units of a row; and calculating the head addresses of the voxels corresponding to the other display phases according to the extracted head addresses. The first address is calculated specifically including: determining a number of slice images and a number of the voxels included in each of the slice images; and sequentially obtaining the head addresses of the voxels corresponding to other display phases according to the display phase sequence from the head addresses obtained by extraction according to the number of the slice images and the number of the voxels included in the slice images. For example, if the first address of the voxel corresponding to the first display phase extracted from the register is a, and the first voxel included in the slice image corresponding to the first display phase is x, the first address of the voxel corresponding to the second display phase is an address obtained by x address bits backward in the order of a from the beginning, and so on.
When the slice arrays are respectively stored in the register in a row unit, the head addresses of the slice arrays are respectively extracted from the slice arrays.
The addressing method in the above embodiment can be compatible with the sizes of the slice arrays, different storage forms of corresponding data of slice images in the slice arrays, different situations of partition or not of offset addresses, and the like, and the data processing process is realized by software, so that the storage architecture of a register is not affected, and the application value is higher.
Based on the same inventive concept, one or more embodiments of the present specification also provide a rotary display device. Referring to fig. 7, the rotary display device includes:
a register 701 configured to store the slice array stored by the storage method according to any one of the above embodiments;
a processor 702 configured to perform the addressing method of any of the embodiments above to obtain the first address and the original offset address; reading the voxels from the register according to the head address and the original offset address, and obtaining a plurality of slice images corresponding to each display phase according to the voxels;
a display panel 703 connected to a rotation shaft and rotatable about the rotation shaft; the display panel is configured to display according to a number of the slice images.
The rotary display device of the present embodiment stores the slice array stored by the storage method described in the foregoing embodiment through the register 701. The addressing method described in the previous embodiments is performed by the processor 702, reads the slice array from the register 701 and determines the storage location of each voxel in the register, and thus obtains the slice image. The processor 702 transmits the slice image to the display panel 703 and displays it through the display panel 703 to realize three-dimensional stereoscopic display.
The rotary display device of the embodiment applies the storage method and the addressing method of the foregoing embodiments, and can realize accurate addressing of voxels, transmit display data according to addresses, compress scanning time, reduce occupation of communication bandwidth by clipping addresses, ensure that the data volume of the form is minimized, and maximize scanning rate.
It should be noted that, although the above device only shows the register 701, the processor 702, and the display panel 703, in the specific implementation, the device may further include other components necessary for realizing normal operation.
It should be noted that the foregoing describes specific embodiments of the present invention. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; combinations of features of the above embodiments or in different embodiments are also possible within the spirit of the present disclosure, steps may be implemented in any order, and there are many other variations of the different aspects of one or more embodiments described above which are not provided in detail for the sake of brevity.
Additionally, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures, in order to simplify the illustration and discussion, and so as not to obscure one or more embodiments of the present description. Furthermore, the apparatus may be shown in block diagram form in order to avoid obscuring the one or more embodiments of the present description, and also in view of the fact that specifics with respect to implementation of such block diagram apparatus are highly dependent upon the platform within which the one or more embodiments of the present description are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that one or more embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.
The present disclosure is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the one or more embodiments of the disclosure, are therefore intended to be included within the scope of the disclosure.
Claims (10)
1. A method of storing display data for a rotary display device, the display data comprising: a plurality of slice images corresponding to a display phase of the rotary display device; each slice image comprises a number of voxels;
the method comprises the following steps:
setting a head address for the voxel; the head address represents a start storage address of the slice image to which the voxel belongs and represents a display phase corresponding to the slice image to which the voxel belongs;
determining an original offset address of the voxel according to the head address; the original offset address represents a relative storage address between the voxel and a start address of the slice image to which it belongs;
cutting the address bit width of the original offset address to obtain the offset address of the voxel;
constructing and obtaining a slice array by taking the voxels and the corresponding head address and offset address as elements; each row of the slice array corresponds to one slice image, and elements in each row correspond to voxels included in the corresponding slice image in a one-to-one sequence;
and storing the slice array into a register of a rotary display device.
2. The method according to claim 1, wherein said clipping the address bit width of said original offset address to obtain the offset address of said voxel, comprises:
dividing the original offset address into a high-order address and a low-order address; the high-order address represents the partition of the voxel in the slice image to which the voxel belongs, and the low-order address represents the actual storage position of the voxel;
and cutting off the high-order address, and taking the low-order address as the offset address.
3. The method according to claim 1, wherein storing the slice array to a register of a rotary display device, in particular comprises:
storing the slice arrays to a register of a rotary display device in a row unit according to the display phase sequence; or, the slice array is continuously stored in a row unit to a register of the rotary display device.
4. A method according to claim 3, wherein when the slice array is stored in a register of a rotary display device continuously in units of a row, the head addresses of the voxels corresponding to the first display phase are allocated, and the head addresses of the voxels corresponding to the other display phases are calculated from the allocated head addresses.
5. A method of addressing display data of a rotary display device, comprising:
accessing a register; the register stores the slice array stored by the storage method of any one of claims 1 to 4;
extracting a head address of the voxel, and determining a display phase corresponding to the slice image to which the voxel belongs according to the head address;
extracting an offset address of the voxel, and carrying out address bit width complementation on the offset address to obtain an original offset address of the voxel;
and determining the storage position of the voxel in a register according to the head address and the original offset address.
6. The method according to claim 5, wherein said performing address bit width complementation on said offset address to obtain an original offset address of said voxel comprises:
determining a low-order address according to the offset address;
generating a high-order address corresponding to the low-order address according to a preset rule;
and combining the high-order address and the low-order address to obtain an original offset address of the voxel.
7. The method according to claim 5, wherein the extracting the head address of the voxel, when the slice array is stored in a register consecutively in units of a row, specifically comprises:
extracting a first address of the voxel corresponding to the first display phase from the slice array;
and calculating the head addresses of the voxels corresponding to the other display phases according to the extracted head addresses.
8. The method according to claim 7, wherein the calculating the head address according to the extracted head address specifically includes:
determining a number of slice images and a number of the voxels included in each of the slice images;
and sequentially obtaining the head addresses of the voxels corresponding to other display phases according to the display phase sequence from the head addresses obtained by extraction according to the number of the slice images and the number of the voxels included in the slice images.
9. The method according to claim 5, wherein the extracting the head address of the voxel, when the slice arrays are stored in the registers, respectively, in units of rows, specifically comprises:
for the voxels corresponding to different display phases, their head addresses are extracted from the slice array, respectively.
10. A rotary display device, comprising:
a register configured to store the slice array stored by the storage method of any one of claims 1 to 4;
a processor configured to perform the addressing method of any of claims 5 to 9 to obtain the head address and the original offset address; reading the voxels from the register according to the head address and the original offset address, and obtaining a plurality of slice images corresponding to each display phase according to the voxels;
a display panel connected to a rotation shaft and rotatable about the rotation shaft; the display panel is configured to display according to a number of the slice images.
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| US7598960B2 (en) * | 2004-07-21 | 2009-10-06 | Siemens Medical Solutions Usa, Inc. | System and method for cache-friendly volumetric image memory storage |
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