CN115881001A - Display control method and device of polymorphic display screen and polymorphic display screen - Google Patents

Display control method and device of polymorphic display screen and polymorphic display screen Download PDF

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CN115881001A
CN115881001A CN202211730012.0A CN202211730012A CN115881001A CN 115881001 A CN115881001 A CN 115881001A CN 202211730012 A CN202211730012 A CN 202211730012A CN 115881001 A CN115881001 A CN 115881001A
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display
image
sub
target
display screen
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CN115881001B (en
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龙平芳
毛强军
刘军
顾伟
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Shenzhen Lianchengfa Technology Co ltd
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Shenzhen Lianchengfa Technology Co ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/161—Detection; Localisation; Normalisation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Human Computer Interaction (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The invention relates to the technical field of screen display, in particular to a display control method and device of a polymorphic display screen and the polymorphic display screen. The method of the invention comprises the following steps: acquiring the current combined form and the current stage performance information of a polymorphic display screen, wherein the combined form at least comprises a folding form and a separating form; acquiring an initial image according to the current stage performance information; determining an image display mode according to the current combination form and/or the stage performance information; processing the initial display image according to the image display mode to obtain a target image; and controlling the polymorphic display screen to display the target image according to the image display mode. The invention can dynamically adjust the image display method of the polymorphic display screen according to the form and the performance condition of the stage display screen to improve the stage performance effect.

Description

Display control method and device of polymorphic display screen and polymorphic display screen
Technical Field
The invention relates to the technical field of screen display, in particular to a display control method and device of a polymorphic display screen and the polymorphic display screen.
Background
The LED display screen is widely applied to large stage scenes such as a concert. Because the scene audience of the concert is numerous, the display area of the required LED display screen is large, but the display area of the single LED display screen is limited, and the requirements of large-scale stage scenes such as the concert cannot be met, and the LED display screen with a large area is high in cost, large in manufacturing difficulty and difficult to transport. In the prior art, a plurality of LED display screens with smaller areas are combined into a larger area LED display screen at the use site. For example, patent document No. CN113990211B discloses a display panel and a display device which can display a plurality of display panels together. Although the display area is increased by times after the display screens are spliced together, the display mode is single due to the fixed and static state of the spliced display screens. However, large-scale stage scenes such as concerts and the like need rich and flexible display modes, and the content or the form displayed by the display screen is required to correspond to the performance content of the concerts, so that the display screen in the current splicing form has a single display mode, cannot be matched with the performance content of the stages, and cannot adapt to the large-scale stage scenes with rich performance content.
Disclosure of Invention
In view of this, embodiments of the present invention provide a display control method and apparatus for a polymorphic display screen, and a polymorphic display screen, so as to solve the technical problem that an existing tiled display screen has a single display mode and cannot adapt to changes in the situation of a live stage performance.
The technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a display control method for a polymorphic display screen, where the polymorphic display screen includes a plurality of sub-display screens that can be separated from each other and spliced into a sphere after being folded, and the method includes the following steps:
acquiring the current combined form and the current stage performance information of a polymorphic display screen, wherein the combined form at least comprises a folding form and a separating form;
acquiring an initial image according to the current stage performance information;
determining an image display mode according to the current combination form and/or the stage performance information;
processing the initial display image according to the image display mode to obtain a target image;
and controlling the polymorphic display screen to display the target image according to the image display mode.
Preferably, the determining of the image display mode according to the current combined modality and/or the stage performance information further comprises the steps of:
if the current combined form is the folding form, the image display mode is a screen-on display mode, and the screen-on display mode is that a pair of complete images are displayed on the folded sub-display screens together;
if the current combined form is the separated form, the image display mode is a split screen display mode or an independent display mode, the split screen display mode is that the separated sub-display screens respectively display a part of the original image, and the independent display mode is that at least two sub-display screens display different original images;
preferably, the processing the initial display image according to the image display mode to obtain the target image further includes the following steps:
if the image display mode is the split screen display mode, acquiring the number of the sub display screens for split screen display;
dividing an original image into a plurality of sub-images according to the number of sub-display screens for split-screen display;
and distributing the sub-images to the sub-display screens to serve as target images of the sub-display screens.
Preferably, the step of allocating the sub-images to the sub-display screens as the target images of the sub-display screens further comprises the following steps:
detecting whether a face image exists in the target images of the sub display screens;
if yes, detecting whether the face image is completely displayed on the current corresponding sub display screen;
if not, the target image is adjusted.
Preferably, the adjusting the target image if the face image is incomplete further comprises the following steps:
acquiring the outline of a face image;
judging whether the face image can be completely displayed on a sub-display screen or not according to the outline of the face image;
if so, selecting one sub display screen from all the sub display screens as a target display screen;
and adjusting each sub-displayed target image according to the target display screen and the face image so as to completely display the face image into the target display screen.
Preferably, the step of adjusting the target image of each sub-display screen according to the target display screen and the face image to completely display the face image on the target display screen further comprises the following steps:
acquiring the current position of a face image on a display screen;
determining the position of the face image on the target display screen of the face image when the face image is completely displayed on the target display screen as the adjusted position according to the target display screen and the face image;
determining the pixel position adjustment amount of the target image of each sub-display screen according to the adjusted position after the current position;
and adjusting the position of each pixel in the target images of all the sub-displays according to the pixel position adjustment amount to obtain the adjusted target image.
Preferably, the step of adjusting the target image of each sub-display screen according to the target display screen and the face image to completely display the face image on the target display screen further comprises the following steps:
determining the position of the face image on the target display screen as a reference position when the face image is completely displayed on the target display screen according to the face image and the target display screen;
projecting the original image onto a virtual display screen in a folding state according to the reference position, so that the position of a human face image in the original image is located at the reference position on the virtual display screen, wherein the virtual display screen is formed by folding virtual sub-display screens corresponding to the sub-display screens one by one;
and re-dividing the projected image into sub-images which correspond to the sub-display screens one by one according to the corresponding relation between the sub-display screens and the virtual sub-display screens, and taking the sub-images as the target images of the sub-display screens after adjustment.
Preferably, the scene information includes a position of the target actor in the stage, and the determining of the image display mode according to the current combined modality and/or the stage performance information further includes the steps of:
acquiring a first preset area in a stage;
judging whether the target actor is in a first preset area or not according to the current position of the target actor in the stage;
if so, determining that the image display mode is a tracking display mode;
the processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
when the image display mode is the tracking display mode, acquiring an included angle between a target actor and a preset position of a stage;
acquiring an image of a target actor tracked and displayed from the initial display image;
acquiring an initial display angle of an image of a target actor according to the initial display image;
acquiring a final display angle of an image of a target actor according to an included angle between the target actor and a preset position of a stage;
determining the pixel rotation quantity of the original image according to the final display angle and the initial display angle;
and rotating each pixel of the initial image according to the pixel rotation quantity to obtain a target image.
In a second aspect, the present invention provides a display control apparatus for a multi-modal display screen, the apparatus comprising:
the system comprises a combined form and scene information acquisition module, a stage performance information acquisition module and a stage performance information acquisition module, wherein the combined form and scene information acquisition module is used for acquiring the current combined form and the current stage performance information of a polymorphic display screen, and the combined form at least comprises a folding form and a separating form;
the initial image acquisition module is used for acquiring an initial image according to the current stage performance information;
the display mode acquisition module is used for determining an image display mode according to the current combination form and/or stage performance information;
the image processing module is used for processing the initial display image according to the image display mode to obtain a target image;
and the display module is used for controlling the polymorphic display screen to display the target image according to the image display mode.
In a third aspect, the present invention further provides a polymorphic display screen, including: the control circuit is used for controlling the sub-display screen driving mechanism to control the sub-display screens to be separated from each other or combined into a spherical display screen, the control circuit comprises at least one processor, at least one memory and computer program instructions stored in the memory, and when the computer program instructions are executed by the processor, the method of the first aspect is realized.
Has the advantages that: the display control method and the device of the polymorphic display screen and the polymorphic display screen can display images by matching different combination forms with field performance, select a proper image display mode according to the combination form of the display screen and/or stage performance information, and install the image display mode to adjust and process the initial display image after the image display mode is selected, so that the adjusted image can meet the requirements of the selected image display mode. The invention can make the image display of the polymorphic display screen fit with the scene of the stage performance. The image display and the on-site performance are mutually responded through the cooperative coordination of the current combination form and the image display mode of the polymorphic display screen, so that the overall effect of the stage performance is remarkably improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.
FIG. 1 is a flow chart illustrating a display control method for a multi-modal display screen according to the present invention;
FIG. 2 is a schematic diagram of a three-dimensional structure of a polymorphic display screen of the present invention in a closed configuration;
FIG. 3 is a schematic three-dimensional view of a polymorphic display screen according to the present invention in a separated configuration;
FIG. 4 is a schematic three-dimensional view of a multi-modal display screen of the present invention in a transitional state;
FIG. 5 is a flow chart illustrating a method for determining an image display mode according to a display screen configuration according to the present invention;
FIG. 6 is a flow chart illustrating a method of determining an image display mode and processing an original image according to stage performance information according to the present invention;
fig. 7 is a schematic illustration of the present invention determining the angular position of a target actor in a stage;
fig. 8 is a schematic diagram of the present invention for determining the angular position of an image of a target actor before adjustment on a display screen;
FIG. 9 is a flow chart illustrating a method of processing an original image in a separate display mode according to the present invention;
FIG. 10 is a flowchart illustrating a method for determining whether image adjustment is required according to whether a face is completely displayed according to the present invention;
FIG. 11 is a flow chart of a method of selecting a target display screen based on a face image profile according to the present invention;
FIG. 12 is a schematic flow chart of an image adjustment method for displaying a complete face according to the present invention;
FIG. 13 is a schematic flow chart illustrating another method for adjusting an image to enable a complete display of a human face according to the present invention;
FIG. 14 is a schematic diagram of a display control device of a multi-modal display panel according to the present invention;
FIG. 15 is a block diagram of the hardware configuration of the polymorphic display screen of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. It is within the scope of the present invention that the embodiments and various features of the embodiments may be combined with each other without conflict.
Example 1
As shown in fig. 1, the present embodiment provides a display control method for a polymorphic display screen, where the polymorphic display screen includes several sub-displays that can be separated from each other and combined into a sphere after being folded, and the method includes the following steps:
s1: acquiring the current combined form and the current stage performance information of a polymorphic display screen, wherein the combined form at least comprises a folding form and a separating form;
the multi-mode display panel in this embodiment is formed by combining a plurality of sub-display panels 2, and the plurality of sub-display panels 2 can be formed into different combination modes by changing their positions. Referring to fig. 2, for example, when the sub-displays 2 are completely closed together and spliced into a sphere, the multi-modal display is in a closed state. Referring to fig. 3, for example, when the sub-displays 2 are separated to a large distance and the distances from the center position when folded are the same, the form is a separated form, which is a form in which the display appears like petals which bloom. For example, when the sub-displays 2 are separated to a large distance and the distance from the center position when folded is different, the arrangement is the staggered arrangement. Referring again to fig. 4, the configuration is, for example, a transitional configuration when the sub-displays 2 are at a close distance from each other but not yet fully folded. Since the mutual position relationship among the sub-display screens 2 has a plurality of combination forms, and each position relationship can form a plurality of combination forms, the combination forms of the multi-form display screen also have a plurality of combination forms. The polymorphic display screen in the embodiment can adopt different forms and different form changes according to the requirements of stage performance.
Wherein each sub-display 2 can be seen as being composed of a number of pixel arrangements. These pixels are arranged in the longitudinal direction (u direction in fig. 2) and the latitudinal direction (w direction in fig. 2) of the closed sphere, and for convenience of description, the longitudinal direction of the closed sphere is referred to as a column of pixels, and the latitudinal direction of the closed sphere is referred to as a row of pixels. The position of each pixel on the sub-display 22 is fixed, and the position of each pixel on the sub-display 22 can be represented by the row and column where each pixel is located, for example, the position of the pixel located at the jth row of the ith column can be represented as pos (i, j). One of the pixels can be composed of one or more light-emitting units, and the light-emitting units can adopt LED lamp beads.
S2: acquiring an initial image according to the current stage performance information;
wherein the stage performance information at least comprises the content of the stage performance, the progress of the stage performance and the like. In order to enrich the stage effect, different images are often displayed on the display screen according to different stage performance contents and different stage performance processes. The images can be selected according to the requirements of the stage performance effect, and the unprocessed images which are selected in advance according to the stage performance content and the stage performance progress serve as initial images.
S3: determining an image display mode according to the current combination form and/or the stage performance information;
in order to enrich the stage effect, the present embodiment may provide a plurality of image display modes, and in order to better fit the current stage performance content and progress, this step may determine the image display mode according to the stage performance information. Since different combination forms of the display screen are suitable for different image display modes, the step can also determine the image display mode through the current combination form of the display screen. In order to improve the auxiliary effect of the display screen on the stage performance, the embodiment can also select the combination form of the display screen according to the stage performance information, and select the image display mode capable of assisting in increasing the stage performance effect by combining the combination form of the display screen.
S4: processing the initial display image according to the image display mode to obtain a target image;
the image display mode is installed after the image display mode is selected to adjust the initial display image, so that the adjusted image can meet the requirements of the selected image display mode and is cooperatively matched with the current combination form of the display screen, and the degree of coincidence with the stage performance content and the performance progress is improved.
S5: and controlling the polymorphic display screen to display the target image according to the image display mode.
The step controls the display screen to display the target image according to a predetermined display mode after the target pixel image is obtained.
As an alternative but advantageous embodiment, as shown in fig. 5, in the present embodiment said S3: determining the image display mode according to the current combination modality and/or the stage performance information further comprises the steps of:
s31: if the current combined form is the folding form, the image display mode is a screen-on display mode, and the screen-on display mode is that the folded sub display screens 2 jointly display a complete image;
when all the sub-display screens 2 are folded together, almost no gap exists between the sub-display screens 2, the display screen can be regarded as a complete spherical display screen with 360 degrees, and the display screen with the shape is most suitable for displaying a complete image because the displayed image has no split feeling.
S32: if the current combined form is the separated form, the image display mode is a split screen display mode or an independent display mode, the split screen display mode is that the separated sub-display screens 2 respectively display a part of the original image, and the independent display mode is that at least two sub-display screens 2 display different original images;
when the display screen is in the separated state, a strong power feeling is easy to appear if a complete image is directly displayed. In this case, a split screen display mode or an independent display mode may be used. The split display mode means that each sub-display 2 displays only a certain portion of the same sub-image, and different sub-displays 2 display different portions. The images of all the sub-screens 2 do not constitute a complete image. In this mode the sub-displays 2 are each arranged to display different objects in the same sub-image. For example, a certain sub-screen 2 may display a singer in an image, a certain sub-screen 2 may display a dancer in an image, a certain sub-screen 2 may display images of different characters or things in an image, some buildings, some plants, some animals, etc., cut from the same image. Because the distance between the sub-display screens 2 is long in the separated state, the sub-display screens 2 can also be used as independent display screens to respectively display different original images, and the display mode is the independent display mode.
In this embodiment, in addition to selecting an appropriate image display mode according to the combination form of the display screen, a reasonable image display mode may be selected according to the stage information acquired in real time. In this regard, in this embodiment, the scene information includes the position of the target actor in the stage, as shown in fig. 6, where S3: determining the image display mode according to the current combination modality and/or the stage performance information further comprises the steps of:
s33: acquiring a first preset area in a stage;
the stage can be divided into different areas in advance, different display modes can be adopted when the target actor enters the different areas, and one of the divided areas is taken as a first preset area. For example, the first predetermined area may be a portion of the area of the stage near the auditorium.
S34: judging whether the target actor is in a first preset area or not according to the current position of the target actor in the stage;
the target actor may be a singer of a concert, or may be set by other persons as needed, which is not limited herein. The method comprises the steps of obtaining the real-time position of a target actor, and judging whether the current position of the target actor is in a first preset area.
S35: if yes, determining the image display mode as a tracking display mode;
and if the current position of the target actor is in the first preset area, adopting a tracking display mode, namely displaying a real-time image of the target actor on a display screen, and changing the angle of the image of the target actor along with the position of the target actor on the stage at any time.
For this purpose, S4: the step of processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
s44: when the image display mode is the tracking display mode, acquiring an included angle between a target actor and a preset position of a stage;
as shown in fig. 7, the front of the stage can be generally used as the preset direction, and in other embodiments, any other direction can be selected as the preset direction according to needs, which is not limited herein. The included angle between the target actor and the preset position of the stage is the included angle between the preset position (E direction in fig. 7) and a line L1 between the target actor (located at the position of B point in fig. 7) and the preset position of the stage, where the preset position may be the center position of the stage (the position of a point in fig. 7), or the center position of the sphere when the display screen is completely closed, or any other position may be selected as required.
S45: acquiring an image of a target actor tracked and displayed from the initial display image;
this step extracts the image of the target actor from the initial display image.
S46: acquiring an initial display angle of an image of a target actor according to the initial display image;
as shown in fig. 8, the initial display angle is an angle between the image of the target actor and the preset orientation when the initial image is displayed on the display screen. The included angle between the image of the target actor and the preset azimuth is an included angle between a connecting line L2 between the center position (the position of the point D in fig. 8) of the image of the target actor and the stage setting position (the position of the point a in fig. 8) and the preset azimuth (the direction of E in fig. 8). The method for determining the center position of the target image is the same as the method for determining the center position of the face image.
S47: acquiring a final display angle of an image of a target actor according to an included angle between the target actor and a preset position of a stage;
s48: determining the pixel rotation quantity of the original image according to the final display angle and the initial display angle; firstly, the image rotation angle is calculated according to the final display angle alpha f and the initial display angle alpha p
α t = α p- α f. Assuming that the image moves by m pixels in the latitudinal direction when the image is rotated by a unit angle in the latitudinal direction, the pixel rotation amount pixt = m × α t.
S49: and rotating each pixel of the initial image according to the pixel rotation quantity to obtain a target image.
And if the position of the pixel at the ith column and the jth row in the initial image is pos (i, j), the position of the image in the target image after the pixel is rotated is post (i + pixt, j). Wherein i, j are positive integers.
After the method is adopted, the display screen in the embodiment can adjust the angle of the image along with the movement of the target actor, so that the angular position of the image of the target actor is always consistent with the real-time position of the target actor on the stage, and thus, audiences far away from the stage can conveniently know the position of the target actor on the stage through the position of the image of the target actor on the display screen.
As an alternative but advantageous embodiment, as shown in fig. 9, in the present embodiment, the S4: the step of processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
s41: if the image display mode is the split screen display mode, acquiring the number of the sub display screens 2 for split screen display;
for example, there are 12 sub-display screens 2 in fig. 3, and then 12 sub-display screens may all be selected as the sub-display screens 2 for performing split-screen display, or 10 of them may be selected as the sub-display screens 2 for performing split-screen display. Of course, in other embodiments, other numbers of sub-display screens 2 can be selected as the sub-display screens 2 for performing the split-screen display. For example, the total number of the sub display screens 2 is nc, the number of the sub display screens 2 for performing split screen display is ns, where nc and ns are both positive integers, and ns is less than or equal to nc.
S42: dividing the original image into a plurality of sub-images according to the number of the sub-display screens 2 for split-screen display;
wherein the number of the divided sub-images is larger than the number of the sub-display screens 2 for performing the split-screen display.
S43: the sub-images are assigned to the respective sub-display 2 as target images for the respective sub-display 2.
This step selects sub-images of the same number as the sub-display screens 2 for the split-screen display from among the divided sub-images, allocates a selected unique one of the sub-images to each of the sub-display screens 2 from among the selected sub-images, and displays the allocated sub-images by the sub-display screens 2.
As shown in fig. 10, wherein the S43: assigning the sub-images to the respective sub-display screens 2 as target images for the respective sub-display screens 2 further comprises the steps of:
s431: detecting whether a face image exists in the target images of the sub display screens 2;
because the target images allocated to the sub-display screens 2 are different, the target images allocated to some sub-display screens 2 have faces, and the target images allocated to some sub-display screens 2 do not have faces. In this step, the target images of the sub-display screens 2 are detected first, and the target images of the sub-display screens 2 having faces therein are screened out.
S432: if yes, detecting whether the face image is completely displayed on the current corresponding sub display screen 2;
since each sub-display 2 has a limited display area, it is possible that some sub-displays 2 may not display the complete image of the face in the previous sub-image division and selection, and only a part of the face is displayed. If the face images displayed on all the sub-display screens 2 are complete, different target images can be processed.
S433: if not, the target image is adjusted.
Because the sub-display screens 2 are far apart in the separation mode, if one sub-display screen 2 cannot completely display the human face, the display effect that the human face is split is brought to the audience, and therefore if the human face image displayed by the sub-display screen 2 is found to be incomplete through detection, the target image needs to be adjusted.
As shown in fig. 11, wherein the S433: if the face image is incomplete, adjusting the target image further comprises the following steps:
s4331: acquiring the outline of a face image;
s4332: judging whether the face image can be completely displayed on one sub-display screen 2 or not according to the outline of the face image;
there are two cases where the face image is not completely displayed on the sub-display 2 before the adjustment. The first case is that although the display area of the sub-display 2 can accommodate the whole face image, the position of the face image is not at the position of the maximum width of the sub-display 2 in the process of acquiring the target image of the sub-display 2, so that a part of the face image exceeds the sub-display 2. The second situation is that for one sub-display 2, the display area occupied by the complete face image is too large to exceed the display area provided by one sub-display 2. This step determines whether the first condition is satisfied.
S4333: if so, selecting one sub display screen 2 from all the sub display screens 2 as a target display screen;
if the determination from the previous step is in the first case, then the image may be adjusted. Firstly, a target display screen is selected as a display screen for displaying a complete human face.
S4334: and adjusting each sub-displayed target image according to the target display screen and the face image so as to completely display the face image into the target display screen.
And then, the adjusted target image can realize that the human face is completely displayed in the selected target display screen by adjusting the target image.
As shown in fig. 12, as a way of adjusting the target image to completely display the human face, in this embodiment, the S4334: the step of adjusting the target image of each sub-display 2 according to the target display screen and the face image to completely display the face image on the target display screen further comprises the following steps:
s43344: acquiring the current position of a face image on a display screen;
the method comprises the steps of firstly obtaining the position of a face image on a display screen when the face image is displayed according to a target image before adjustment, wherein the current position of the face image on the display screen can be represented by the position of a pixel where the outline of the face image is located.
S43345: determining the position of the face image on the target display screen of the face image as the adjusted position when the face image is completely displayed on the target display screen according to the target display screen and the face image;
in the step, the area capable of displaying the face image at the position can be found on the target display screen, and then the face image is placed in the area, so that the position of the placed face image is the adjusted position.
S43346: determining the pixel position adjustment amount of the target image of each sub-display screen 2 according to the adjusted position after the current position;
in specific implementation, the center position of the current face image can be obtained first, and the face image is set to contain s pixels in total, wherein s is a positive integer. The position coordinate of the x-th pixel of the current face image is PRX (i) x ,j x ) Then the center position of the current face image is PC (i) C ,j C ) Wherein i is C ＝(i 1 +i 2 +……i s ) S, wherein i C ＝(j 1 +j 2 +……j s )/s。
Then obtaining the center position of the adjusted face image, and setting the position coordinate of the x-th pixel of the adjusted first face image as PBX (i) x ,j x ) Then, the center position of the face image is adjusted to be PB (i) b ,j b ) Wherein i is b ＝(i 1 +i 2 +……i s ) S, wherein i b ＝(j 1 +j 2 +……j s ) And s. Wherein the adjustment amount (i) of the pixel position t ，j t )＝(i b –i c ，i b –i c )。
S43347: according to the display position adjustment amountAnd adjusting the position of each pixel in the target images of all the sub-displays to obtain the adjusted target images. If the position of the pixel at the ith column and the jth row of the face image before adjustment is pos (i, j), the position of the image in the target image after the adjustment processing is performed on the pixel is post (i + i) t ，j+j t ). Wherein i, j are positive integers.
As the sub-display screens 2 in the separated form can be folded into the display screen in the closed state, another method for completely displaying a human face in one sub-display screen 2 is also provided in this embodiment, as shown in fig. 13, in this embodiment, the step S4334: the step of adjusting the target image of each sub-display screen 2 according to the target display screen and the face image to completely display the face image on the target display screen further comprises the following steps:
s43341: determining the position of the face image on the target display screen as a reference position when the face image is completely displayed on the target display screen according to the face image and the target display screen;
in the step, the area capable of displaying the face image at the position can be found on the target display screen, and then the face image is placed in the area, so that the position of the placed face image on the target display screen is the reference position.
S43342: projecting the original image onto a virtual display screen in a folded state according to the reference position, so that the position of the face image in the original image is located at the reference position on the virtual display screen, wherein the virtual display screen is formed by folding virtual sub-display screens 2 corresponding to the sub-display screens 2 one by one;
the computer program firstly virtualizes all the sub-display screens 2 according to the shapes and the sizes of the sub-display screens 2, and then folds the virtual sub-display screens 2 together in a completely folded state to form a virtual display screen, wherein the virtual display screen is the computer program to fold the separated display screens together to obtain the virtual display screen in the folded state.
Each sub-display screen 2 has a corresponding virtual sub-display screen 2, and the virtual sub-display screen 2 corresponding to the second target display screen is used as a virtual target display screen. Each pixel of the respective virtual sub-display 2 also corresponds to each pixel of the sub-display 2. The reference position on the virtual target display screen is the pixel position corresponding to the reference position on the corresponding target display screen. The original image is then projected (displayed) onto the virtual display screen in the closed configuration. The position of the human face image in the projected original image is just positioned on the reference position of the virtual target display screen when the image is projected.
S43343: and re-dividing the projected image into sub-images which correspond to the sub-display screens 2 one by one according to the corresponding relation between the sub-display screens 2 and the virtual sub-display screens 2 and taking the sub-images as the adjusted target images of the sub-display screens 2.
After the projection, each virtual sub-display 2 displays a part of the original image, and in this step, the part of the original image displayed by each virtual sub-display 2 is used as the adjusted target image of the corresponding sub-display 2.
Since the sub-display driving device may have mechanical errors, such as uneven guide rails, when the multi-mode display is in the transition mode, the sub-displays may be shifted in the longitudinal direction, and since the sub-displays are relatively close to each other, the viewer may have a visual effect that the parts of the whole image are obviously staggered. In this embodiment, the determining the image display mode according to the current combination shape and/or the stage performance information further includes:
if the current combination form is the transition form, the image display mode is the transition display mode, and the screen-on display mode is that the incompletely folded sub display screens jointly display a complete image;
the processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
correspondingly dividing the original image into each sub display screen;
the original image is completely divided according to the number of the sub display screens, each sub display screen is divided to obtain a sub original image, and all the sub original images can form a complete original image.
Acquiring original images obtained by dividing each sub display screen as sub original images;
acquiring the deviation amount of images between adjacent sub display screens;
the deviation amount of the image refers to how many pixels of the corresponding sub-original images of the two adjacent sub-display screens are staggered in the longitude direction of the polymorphic display screen compared with the ideal situation without mechanical error. The heights of all the positions of the guide rail can be measured in advance, and the deviation amount of the image can be calculated according to the height of the guide rail where the sub display screen is located at present. And if the height of the current guide rail is higher than the ideal height h and the size of one pixel is pc, the deviation amount of the image is h/pc.
Acquiring the maximum allowable offset of the image; the maximum offset is the maximum offset value that is not noticeable to a viewer after the local pixel offset of the image.
Determining the column number TN of the pixels for deviation adjustment according to the deviation amount and the maximum deviation amount;
in this embodiment, the amount of deviation is diffused to the rows of pixels, but the amount of deviation assigned to each row cannot be larger than the maximum amount of deviation, and therefore the amount of deviation shared by the pixels in each row is smaller as the number of rows TN of pixels subjected to deviation adjustment is larger. In this step, only the number of rows TN of the pixels to be offset-adjusted is small enough that the larger the number of rows TN of the pixels to be offset-adjusted is, the smaller the amount of offset apportioned by each row of pixels is than the maximum offset amount.
Selecting TN column pixels from the sub-original image as a target adjustment pixel column according to the column number TN of the pixels subjected to deviation adjustment; TN columns of pixels may be selected as the target adjustment pixel columns from among the columns of pixels between the middle position of the sub-display panel in the latitudinal direction to the edge of the sub-display panel.
Acquiring a compensation amount according to the deviation amount; wherein the compensation amount is the inverse of the deviation amount.
Determining the pixel offset of each target adjustment pixel column according to the compensation amount and the maximum offset;
wherein the sum of the pixel shift amounts of all the target adjustment pixel rows is the compensation amount. If the pixel shift amount of a row of target adjustment pixels is F, the pixels of the row are shifted by F pixels in the longitudinal direction as a whole, if the pixel shift amount F is positive, the pixels of the row are shifted upward, and if the pixel shift amount F is negative, the pixels of the row are shifted downward.
And sequentially carrying out offset processing on each row of pixels from the center position of the sub display screen to the edge position of the sub display screen according to the pixel offset of each row of target adjustment pixel rows to obtain sub-target images, wherein all the sub-target images form a target image. This step performs offset processing in the aforementioned order. And setting the pixel column close to the central position of the sub display screen as a front pixel column, and setting the pixel column far away from the central position of the sub display screen as a rear pixel column. If the pixel column to be processed is the target adjustment pixel column, the pixel column before the target adjustment pixel column is kept unchanged, and the target pixel column and the pixel column after the target pixel column are shifted by the pixel offset corresponding to the target pixel column along the longitudinal direction. If the currently processed pixel is not the target adjustment pixel column, then the next pixel column is skipped.
The image processing can eliminate the image dislocation caused by mechanical error, and the image dislocation is eliminated without causing the adjustment of the image to be perceived by the viewer.
Example 2
Referring to fig. 14, the present embodiment provides a display control apparatus for a multi-modal display screen, the apparatus including:
the system comprises a combined form and scene information acquisition module, a combined form and scene information acquisition module and a display module, wherein the combined form and scene information acquisition module is used for acquiring the current combined form and the current stage performance information of a polymorphic display screen, and the combined form at least comprises a folding form and a separating form;
the initial image acquisition module is used for acquiring an initial image according to the current stage performance information;
the display mode acquisition module is used for determining an image display mode according to the current combination form and/or stage performance information;
the image processing module is used for processing the initial display image according to the image display mode to obtain a target image;
and the display module is used for controlling the polymorphic display screen to display the target image according to the image display mode.
The image processing module further comprises:
the sub-display screen quantity acquisition sub-module is used for acquiring the quantity of sub-display screens for split-screen display if the image display mode is a split-screen display mode;
the original image segmentation sub-module is used for segmenting the original image into a plurality of sub-images according to the number of the sub-display screens for split-screen display;
a sub-image distribution sub-module for distributing the sub-images to the sub-display screens as target images of the sub-display screens.
Example 3
In addition, the display control method of the multi-modal display screen according to the foregoing embodiment of the present invention described with reference to fig. 15 can be implemented by the multi-modal display screen according to the present embodiment. Fig. 15 is a schematic diagram illustrating a hardware structure of a multi-modal display screen according to an embodiment of the present invention.
The multi-form display screen comprises a plurality of sub display screens 2 of the multi-form display screen, a sub display screen driving mechanism 405 and a control circuit, wherein the control circuit is respectively electrically connected with the sub display screen driving mechanism 405 and the sub display screens 2, the control circuit is used for controlling the sub display screen driving mechanism 405 to control the sub display screens 2 to be separated from each other or combined into a sphere after being folded, and the control circuit comprises at least one processor 401, at least one memory 402 and computer program instructions stored in the memory. The driving mechanism comprises a linear motor and a guide rail, a sliding block of the linear motor moves along the guide rail, and the sliding block is connected with the bottom of the sub display screen 2.
In particular, the processor may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
Memory 402 may include mass storage for data or instructions. By way of example, and not limitation, memory 402 may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 402 may include removable or non-removable (or fixed) media, where appropriate. The memory 402 may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory 402 is non-volatile solid-state memory. In a particular embodiment, the memory 402 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.
The processor 401 reads and executes computer program instructions stored in the memory 402 to implement any of the data addressing methods in the above embodiments.
The display screen of the present embodiment may also include a communication interface 403 and a bus 410 in one example. As shown in fig. 9, the control circuit 401, the memory 402, and the communication interface 403 are connected via a bus 410 to complete mutual communication. The communication interface 403 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention. Bus 410 includes hardware, software, or both to couple the various components for the display to each other. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 410 may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention. The back of the sub-display screen is provided with a support used for supporting the sub-display screen, and the support is formed by connecting a plurality of hollow aluminum alloys.
The above is a detailed description of the display control method and device for the multi-modal display screen and the display screen provided by the embodiment of the invention.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments can be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include an electronic circuit, a semiconductor memory device, a ROM, a flash memory, an Erasable ROM (EROM), a floppy disk, a CD-ROM, an optical disk, a hard disk, an optical fiber medium, a Radio Frequency (RF) link, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.

Claims (10)

1. A display control method of a polymorphic display screen, wherein the polymorphic display screen comprises a plurality of sub-display screens which can be separated from each other and spliced into a sphere after being folded, is characterized by comprising the following steps:
acquiring the current combined form and the current stage performance information of a polymorphic display screen, wherein the combined form at least comprises a folding form and a separating form;
acquiring an initial image according to the current stage performance information;
determining an image display mode according to the current combination form and/or the stage performance information;
processing the initial display image according to the image display mode to obtain a target image;
and controlling the polymorphic display screen to display the target image according to the image display mode.
2. The display control method of the polymorphic display screen according to claim 1, wherein the determining of the image display mode according to the current combined morphology and/or stage performance information further comprises the steps of:
if the current combined form is the folding form, the image display mode is a screen-on display mode, and the screen-on display mode is that a pair of complete images are displayed on the folded sub-display screens together;
and if the current combined form is the separated form, the image display mode is a split screen display mode or an independent display mode, the split screen display mode is that the separated sub-display screens respectively display a part of the original image, and the independent display mode is that at least two sub-display screens display different original images.
3. The display control method of the polymorphic display screen according to claim 2, wherein the processing the initial display image according to the image display mode to obtain the target image further comprises the steps of:
if the image display mode is the split screen display mode, acquiring the number of the sub display screens for split screen display;
dividing an original image into a plurality of sub-images according to the number of sub-display screens for split-screen display;
and distributing the sub-images to the sub-display screens to serve as target images of the sub-display screens.
4. The method of claim 3, wherein the step of assigning the sub-image to each sub-display as the target image of each sub-display further comprises the steps of:
detecting whether a face image exists in the target images of the sub display screens;
if yes, detecting whether the face image is completely displayed on the current corresponding sub display screen;
if not, the target image is adjusted.
5. The display control method of the polymorphic display screen according to claim 4, wherein the adjusting the target image if the face image is incomplete further comprises the steps of:
acquiring the outline of a face image;
judging whether the face image can be completely displayed on a sub-display screen or not according to the outline of the face image;
if so, selecting one sub display screen from all the sub display screens as a target display screen;
and adjusting each sub-displayed target image according to the target display screen and the face image so as to completely display the face image into the target display screen.
6. The method for controlling the display of a polymorphic display screen according to claim 5, wherein the step of adjusting the target image of each sub-display screen according to the target display screen and the face image to completely display the face image on the target display screen further comprises the steps of:
acquiring the current position of a face image on a display screen;
determining the position of the face image on the target display screen of the face image when the face image is completely displayed on the target display screen as the adjusted position according to the target display screen and the face image;
determining the pixel position adjustment amount of the target image of each sub-display screen according to the adjusted position after the current position;
and adjusting the position of each pixel in the target images of all the sub-displays according to the pixel position adjustment amount to obtain the adjusted target image.
7. The method for controlling the display of a polymorphic display screen according to claim 5, wherein the step of adjusting the target image of each sub-display screen according to the target display screen and the face image to completely display the face image on the target display screen further comprises the steps of:
determining the position of the face image on the target display screen as a reference position when the face image is completely displayed on the target display screen according to the face image and the target display screen;
projecting the original image onto a virtual display screen in a folding state according to the reference position, so that the position of the face image in the original image is positioned at the reference position on the virtual display screen, and the virtual display screen is formed by folding virtual sub-display screens corresponding to the sub-display screens one by one;
and re-dividing the projected image into sub-images which correspond to the sub-display screens one by one according to the corresponding relation between the sub-display screens and the virtual sub-display screens and taking the sub-images as the adjusted target images of the sub-display screens.
8. The display control method of a polymorphic display screen according to claim 5, wherein the scene information includes a position of a target actor in a stage, the determining an image display mode according to a current combined modality and/or stage performance information further comprising the steps of:
acquiring a first preset area in a stage;
judging whether the target actor is in a first preset area or not according to the current position of the target actor in the stage;
if so, determining that the image display mode is a tracking display mode;
the processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
when the image display mode is the tracking display mode, acquiring an included angle between a target actor and a preset position of a stage;
acquiring an image of the target actor tracked and displayed from the initial display image;
acquiring an initial display angle of an image of a target actor according to the initial display image;
acquiring a final display angle of an image of a target actor according to an included angle between the target actor and a preset position of a stage;
determining the pixel rotation quantity of the original image according to the final display angle and the initial display angle;
and rotating each pixel of the initial image according to the pixel rotation quantity to obtain a target image.
9. A display control apparatus for a multi-modal display screen, the apparatus comprising:
the system comprises a combined form and scene information acquisition module, a combined form and scene information acquisition module and a display module, wherein the combined form and scene information acquisition module is used for acquiring the current combined form and the current stage performance information of a polymorphic display screen, and the combined form at least comprises a folding form and a separating form;
the initial image acquisition module is used for acquiring an initial image according to current stage performance information;
the display mode acquisition module is used for determining an image display mode according to the current combination form and/or stage performance information;
the image processing module is used for processing the initial display image according to the image display mode to obtain a target image;
and the display module is used for controlling the polymorphic display screen to display the target image according to the image display mode.
10. Polymorphic display screen, its characterized in that includes: the system comprises a plurality of sub-display screens, a sub-display screen driving mechanism and a control circuit, wherein the control circuit is respectively electrically connected with the sub-display screen driving mechanism and the sub-display screens, the control circuit is used for controlling the sub-display screen driving mechanism to control the sub-display screens to be separated from each other or combined into a spherical display screen, the control circuit comprises at least one processor, at least one memory and computer program instructions stored in the memory, and when the computer program instructions are executed by the processor, the method according to any one of claims 1 to 8 is realized.
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