WO2020062025A1 - 确定拼接显示屏的偏移距离的方法以及相关的装置 - Google Patents
确定拼接显示屏的偏移距离的方法以及相关的装置 Download PDFInfo
- Publication number
- WO2020062025A1 WO2020062025A1 PCT/CN2018/108337 CN2018108337W WO2020062025A1 WO 2020062025 A1 WO2020062025 A1 WO 2020062025A1 CN 2018108337 W CN2018108337 W CN 2018108337W WO 2020062025 A1 WO2020062025 A1 WO 2020062025A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mosaic
- display
- display screen
- mosaic display
- offset distance
- Prior art date
Links
Images
Classifications
-
- 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
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
-
- 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
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1431—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using a single graphics controller
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
- G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0275—Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0693—Calibration of display systems
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0464—Positioning
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2356/00—Detection of the display position w.r.t. other display screens
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
- G09G5/32—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory with means for controlling the display position
Definitions
- the present invention relates to the field of display technology, and in particular, to a method for determining an offset distance of a mosaic display screen in a mosaic display system, a method for driving a mosaic display system, a corresponding control device, and a mosaic display system.
- a mosaic display system is proposed for displaying a large-sized image.
- a splicing display system is formed by physically splicing a plurality of display screens (also referred to as “splicing display screens”), which can realize single-screen display or multi-screen display.
- Embodiments of the present invention provide a method and a corresponding control device for determining an offset distance of a mosaic display screen in a mosaic display system.
- a method for determining an offset distance of a mosaic display screen in a mosaic display system includes a plurality of mosaic display screens arranged in a matrix.
- a preset image is displayed in each of a plurality of stitching displays. Then select feature points in the preset image and determine the position of the corresponding feature points in the mosaic display system in the mosaic display system. Based on the positions of the feature points, at least one of a vertical offset distance and a horizontal offset distance of each mosaic display screen is determined.
- determining the vertical offset distance of each spliced display screen based on the position of the feature point may include: selecting a first reference display screen for each line of the spliced display screen; A stitching display, determining a longitudinal offset of the position of the feature point in the stitching display relative to the position of the feature point in the first reference display; and determining the stitching display relative to the first reference based on the longitudinal offset The vertical pixel distance of the display as the vertical offset distance.
- the vertical offset is determined by calculating the difference between the vertical coordinate of each feature point in each row of the spliced display screen and the vertical coordinate of the feature point in the corresponding first reference display screen.
- determining the lateral offset distance of each mosaic display screen may include: for each column of the mosaic display screen, selecting a second reference display screen; for each of the columns of the mosaic display screen, A stitching display, determining a lateral offset of the position of the feature point in the stitching display relative to the position of the feature point in the second reference display; and determining the stitching display relative to the second reference based on the lateral offset The horizontal pixel distance of the display as the horizontal offset distance.
- the lateral offset is determined by calculating the difference between the abscissa of each feature point in each column of the mosaic display screen and the abscissa of the feature point in the corresponding second reference display screen.
- determining the vertical offset distance of each of the mosaic display screens may include: for each row of the mosaic display screens, determining a position of a corresponding feature point in an adjacent mosaic display screen. Determine the vertical pixel distance between adjacent tiled displays based on the vertical offset; and determine the row of tiled displays based on the vertical pixel distance between the adjacent tiled displays The vertical pixel distance of each of the mosaic display screens relative to the first reference display screen is taken as the vertical offset distance of each of the mosaic display screens, wherein the first reference display screen is one of the row of the mosaic display screens.
- the vertical offset is determined by calculating the difference between the vertical coordinates of the corresponding feature points in the adjacent mosaic display screen.
- determining the lateral offset distance of each tiled display screen may include: for each column of tiled display screens, determining a position of a corresponding feature point in an adjacent tiled display screen Determine the horizontal pixel distance between adjacent spliced displays based on the horizontal offset; and determine the column of spliced displays based on the horizontal pixel distance between adjacent spliced displays The horizontal pixel distance of each of the mosaic display screens relative to the second reference display screen is taken as the lateral offset distance of each of the mosaic display screens, where the second reference display screen is one of the column of the mosaic display screens.
- the lateral offset is determined by calculating the difference between the abscissas of the corresponding feature points in the adjacent mosaic display screen.
- the preset image may be one of the following images: a cross-line pattern formed by the intersection of line segments parallel to adjacent two sides of the spliced display screen; and a parallel to the row direction of the matrix of the spliced display screen A first line pattern; a second line pattern parallel to the column direction of the matrix of the mosaic display screen.
- the preset image includes a first preset image and a second preset image, wherein a first feature point is selected in the first preset image for determining a longitudinal deviation between the mosaic display screens. Shift the distance, and select a second feature point in the second preset image to determine a lateral offset distance between the mosaic display screens.
- the first preset image is a first line pattern parallel to the row direction of the matrix of the mosaic display screen
- the second preset image is a second line pattern parallel to the column direction of the matrix of the mosaic display screen.
- a method for driving a mosaic display system wherein the mosaic display system includes a plurality of mosaic display screens arranged in a matrix.
- a data signal for driving each of the mosaic display screens is modified based on a vertical offset distance and / or a horizontal offset distance of each of the multiple display screens, wherein the vertical offset distance and / or the horizontal offset are modified
- the distance is determined using the method according to the first aspect of the invention.
- the modified data signal is driven to display.
- the method may further include: displaying the number of pixel rows corresponding to the corresponding vertical offset distance in the corresponding mosaic display screen to be black based on the vertical offset distance of each mosaic display screen, wherein, The pixel row is located at an edge of the corresponding tiled display screen that is in the same offset direction as the corresponding longitudinal offset distance; and / or based on the horizontally offset distance of each tiled display screen, The number of pixel columns corresponding to the lateral offset distance is displayed in black, where the pixel columns are located on the same edge of the corresponding mosaic display screen as the offset direction of the corresponding lateral offset distance.
- a control device for a mosaic display system wherein the mosaic display system includes a plurality of mosaic display screens arranged in a matrix.
- the control device may include: one or more processors; a memory coupled to the processor and storing computer program instructions, wherein the computer program instructions, when executed by the processor, cause the control device to execute the first
- the method in one aspect determines a vertical offset distance and / or a horizontal offset distance of each mosaic display screen.
- the computer program instructions when executed by the processor, further cause the control device to modify the data for driving each of the mosaic display screens based on the longitudinal offset distance and / or the lateral offset distance of each mosaic display screen. Signal; and use the modified data signal to drive the corresponding spliced display for display.
- a mosaic display system may include: a plurality of mosaic display screens arranged in a matrix; and a control device according to a third aspect of the present invention, the control device being coupled to the plurality of mosaic display screens.
- FIG. 1 is a schematic flowchart of a method for determining an offset distance of a mosaic display screen in a mosaic display system according to an embodiment of the present invention
- FIG. 2 is a schematic diagram for explaining an example of determining an offset distance of a mosaic display screen according to an embodiment of the present invention
- 3a and 3b are schematic diagrams for explaining another example of determining an offset distance of a mosaic display screen according to an embodiment of the present invention
- FIG. 4 is a schematic flowchart of a method for driving a mosaic display system according to an embodiment of the present invention
- 5a and 5b are exemplary diagrams for explaining processing of vertical and horizontal offsets of a mosaic display screen
- FIG. 6 is a schematic block diagram of a control device for a mosaic display system according to an embodiment of the present invention.
- FIG. 7 is a schematic block diagram of a mosaic display system according to an embodiment of the present invention.
- the articles “a,” “an,” “the,” and “said” are intended to mean that there are one or more of the elements.
- the terms “comprising,” “including,” “containing,” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements.
- the terms “first”, “second”, “third”, etc. are used for the purpose of description to distinguish one component (or part of a component) from another component (or another part of a component), and cannot be understood as indicating or Imply relative importance and order of formation.
- the flowchart depicted in the present invention is only an example. There may be many variations to this flowchart or the steps described therein without departing from the spirit of the invention. For example, the steps may be performed in a different order, or steps may be added, deleted, or modified. These variations are considered part of the claimed aspect.
- the terms “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, and Its derivatives should relate to inventions.
- the terms “overlay”, “on !, “located on ! or “located on " mean that a first element such as a first structure exists in a second element such as a second structure Above, there may be an intermediate element such as an interface structure between the first element and the second element.
- contact means connecting a first element such as a first structure and a second element such as a second structure, and there may or may not be other elements at the interface of the two elements.
- an embodiment of the present invention provides a technology for determining such a stitching error and then correcting the image display, thereby making up for the stitching error and improving the display effect.
- FIG. 1 shows a schematic flowchart of a method for determining an offset distance of a mosaic display screen in a mosaic display system according to an embodiment of the present invention.
- the mosaic display system includes a plurality of mosaic displays arranged in an M ⁇ N matrix.
- a preset image is displayed in each mosaic display screen.
- the preset image may be arbitrary, such as a cross line pattern, a horizontal line pattern, or a vertical line pattern.
- the preset image displayed in each stitching display screen is the same.
- a feature point is selected in a preset image.
- the feature point is used as a reference point for determining the offset distance, which may be any point in the preset image.
- the position of the feature point in each mosaic display screen in the mosaic display system is determined. In the embodiment of the present invention, a plane rectangular coordinate system can be established for the mosaic display system.
- step S140 based on the position of the feature point, at least one of a vertical offset distance and a horizontal offset distance of each mosaic display screen is determined.
- the following describes the process of determining the offset distance of the mosaic display screen as shown in FIG. 1 in detail through two examples.
- FIG. 2 shows a schematic diagram for explaining an example of determining an offset distance of a mosaic display screen according to an embodiment of the present invention.
- the mosaic display system includes nine mosaic displays arranged in a 3 ⁇ 3 matrix, using (1,1), (1,2), (1,3), ( 2,1), (2,2), (2,3), (3,1), (3,2), (3,3).
- a flat rectangular coordinate system is established for the mosaic display system, where the origin can be set at, for example, the lower left corner of the mosaic display (3,1), the X axis is the horizontal direction of the illustration, and the Y axis is the vertical direction of the illustration.
- the unit length can be set to be related to the pixel size.
- the preset image is displayed in each stitching display.
- the preset image is a cross line pattern, where one line segment is parallel to the horizontal edge of the mosaic display, the other line segment is parallel to the vertical edge of the mosaic display, and the two line segments intersect at the midpoint.
- the image of the mosaic display system can be obtained by a camera, and the image is further analyzed to determine the coordinates of each feature point, that is, A 11 (x 11 , y 11 ), A 12 (x 12 , y 12 ) , A 13 (x 13 , y 13 ), A 21 (x 21 , y 21 ), A 22 (x 22 , y 22 ), A 23 (x 23 , y 23 ), A 31 (x 31 , y 31 ) , A 32 (x 32 , x 33 ), A 33 (x 33 , y 33 ).
- Those skilled in the art should know that other methods can also be used to determine the location of the feature points.
- the vertical offset distance of each mosaic display screen can be determined.
- the first reference display screen is selected for each row of the spliced display screen.
- a vertical pixel distance of the mosaic display relative to the first reference display is determined as the vertical offset distance of the mosaic display.
- the stitching display (1,1), (1,2), (1,3) select the stitching display (1,1) as the reference display (corresponding to the "first reference Display "). Then, according to the ordinates y 11 , y 12 , y 13 of the feature points A 11 , A 12 , and A 13 in the mosaic display screens (1, 1), (1,2), and (1, 3) in the first row, , It can be determined that the vertical offsets of the mosaic display screens (1,1), (1,2), and (1,3) relative to the reference display screen are the differences in the ordinate, that is, 0, y 12 -y 11 and y 13 -y 11 .
- the vertical pixel distance can be determined according to the vertical offset of the mosaic display screen as the vertical offset distance.
- the vertical offset can be converted into the vertical pixel distance according to the relationship between the unit length of the coordinate system and the pixel size.
- the vertical pixel distances of the stitching display (1,1), (1,2), and (1,3) relative to the reference display are 0, k ⁇ (y 12 -y 11 ) and k ⁇ (y 13 -y 11 ), as the vertical offset distances of the mosaic display screens (1,1), (1,2), and (1,3). Further, a rounding operation may be performed on the vertical pixel distance to facilitate subsequent image correction.
- the mosaic display screen (2,1) is selected as the reference display screen.
- the vertical coordinates y 21 , y 22 , y 23 of the feature points A 21 , A 22 , and A 23 in the mosaic display screens (2, 1), (2, 2), and (2, 3) in the second row It can be determined that the longitudinal offsets of the spliced display screens (2,1), (2,2) and (2,3) relative to the reference display screen are 0, y 22 -y 21 and y 23 -y 21 respectively .
- the vertical pixel distances of the mosaic display screens (2,1), (2,2), and (2,3) relative to the reference display screen are 0, k ⁇ (y 22 -y 21 ), and k ⁇ ( y 23 -y 21 ), as the vertical offset distances of the spliced display screens (2,1), (2,2), and (2,3).
- the mosaic display (3,1) is selected as the reference display.
- the vertical offsets of 1), (3, 2) and (3, 3) relative to the reference display (3, 1) are 0, y 32 -y 31 and y 33 -y 31, respectively .
- the vertical pixel distances of the mosaic display screens (3,1), (3,2), and (3,3) relative to the reference display screen are 0, k ⁇ (y 32 -y 31 ), and k ⁇ ( y 33 -y 31 ), as the vertical offset distances of the spliced display screens (3,1), (3,2), (3,3).
- the vertical offset distance of each spliced display screen can also be determined through the operations described below. For each row of the mosaic display, determine the longitudinal offset between the positions of the corresponding feature points in the adjacent mosaic display. Then, based on the vertical offset, a vertical pixel distance between the adjacent mosaic display screens is determined. Further, the vertical pixel distance of each of the spliced displays in the row of the spliced display relative to the first reference display is determined as the vertical offset distance of each of the spliced displays, where the first reference display may be the line of the spliced display. Any one of the displays.
- the mosaic display screen (1,2) for the first row of the mosaic display screens (1,1), (1,2), (1,3), according to the mosaic display screens (1,1), (1,2)
- the ordinates y 11 , y 12 , and y 13 of the feature points A 11 , A 12 , and A 13 in (1,3) can determine the mosaic display screen (1,2) relative to the mosaic display screen (1,1) longitudinally offset y 12 -y 11, display splicing (1,3) with respect to the longitudinal offset splicing display (1,2) for y 13 -y 12.
- the vertical pixel distance of the mosaic display screen (1,2) relative to the mosaic display screen (1,1) is k ⁇ (y 12 -y 11 ), and the mosaic display screen (1,3) is relative to the mosaic display screen.
- the vertical pixel distance of (1,2) is k ⁇ (y 13 -y 12 ).
- a spliced display screen (1, 1) may be selected as the reference display screen (corresponding to the “first reference display screen”).
- the spliced display can be determined
- the spliced display can be determined
- the lateral offset distance of each mosaic display screen may be determined based on the coordinate values of the feature points.
- a second reference display screen is selected for each column of the spliced display screen. Then, for each of the tiled display screens in the column, a lateral offset of the position of the feature point in the tiled display screen with respect to the position of the feature point in the second reference display screen is determined. Then, based on the lateral offset, a lateral pixel distance of the mosaic display relative to the second reference display is determined as the lateral offset distance of the mosaic display
- the mosaic display (1,1) can be selected as the reference display (corresponding to the "second Reference display ").
- the mosaic display can be determined
- the lateral offsets of (1,1), (2,1), and (3,1) with respect to the reference display screen are the differences on the abscissa, that is, 0, x 21- x 11 and x 31- x 11 .
- the difference between the abscissas is zero, it means that the mosaic display is not offset from the reference display; if the difference between the abscissas is positive, it indicates that the mosaic display is offset to the right relative to the reference display. ; If the difference in the abscissa is a positive value, it indicates that the mosaic display is offset to the left relative to the reference display.
- the horizontal pixel distance of the mosaic display screen (1,1), (2,1), and (3,1) relative to the reference display screen is 0 respectively
- K ⁇ (x 21 -x 11 ) and k ⁇ (x 31 -x 11 ) are used as the lateral offset distances of the mosaic display screens (1,1), (2,1), and (3,1).
- the tiled display can be determined
- the horizontal offsets of (1,2), (2,2), and (2,3) relative to the reference display are 0, x 22 -x 12 and x 32 -x 12, respectively .
- the horizontal pixel distances of the mosaic display screens (1, 2), (2, 2), and (3, 2) relative to the reference display screen are 0, k ⁇ (x 22 -x 12 ), and k ⁇ ( x 32 -x 12 ), as the horizontal offset distance of the mosaic display (1,2), (2,2), (3,2).
- the tiled display can be determined The lateral offsets of (1,3), (2,3), and (3,3) relative to the reference display are 0, x 23 -x 13 and x 33 -x 13, respectively . Then, it can be determined that the horizontal pixel distances of the mosaic display screens (1, 3), (2, 3), and (3, 3) relative to the reference display screen are 0, k ⁇ (x 23 -x 13 ), and k ⁇ ( x 33- x 13 ), as the horizontal offset distance of the mosaic display (1,2), (2,2), (3,2).
- the lateral offset distance of each spliced display screen can also be determined through the operations described below. For each column of the mosaic display, determine the lateral offset between the positions of the corresponding feature points in the adjacent mosaic display. Then, based on the horizontal offset, a horizontal pixel distance between the adjacent mosaic display screens is determined. Then, the horizontal pixel distance of each of the mosaic display screens relative to the second reference display screen in the column of mosaic display screens is determined as the lateral offset distance of each of the mosaic display screens, where the second reference display screen may be the column mosaic display Any one of the screens.
- the horizontal coordinates x 11 , x 21 , x 31 of the feature points A 11 , A 21 , and A 31 in (3,1) can determine that the mosaic display (2,1) is relative to the mosaic display (1,1) lateral offset x 21 -x 11, a display screen and splicing (3,1) with respect to the screen stitching (2,1) laterally offset y 31 -y 21.
- the horizontal pixel distance of the mosaic display (2,1) relative to the mosaic display (1,1) is k ⁇ (x 21 -x 11 ), and the mosaic display (3,1) is relative to the mosaic display
- the horizontal pixel distance of (2,1) is k ⁇ (x 31 -x 21 ).
- the mosaic display screen (1,1) as the reference display screen (corresponding to the “second reference display screen”), and determine the mosaic display screens (1,1), (2,1), (2,1)
- the mosaic display 1,3), (2,3), (3,3)
- the first stitching display (1,1), (2,1), (3,1) in each row of stitching displays is selected as the first reference display, and each column is selected
- the first splicing display (1,1), (1,2), (1,3) in the splicing display is used as the second reference display, but those skilled in the art should know that the display can be spliced in each row Any one of the spliced displays is selected as the first reference display of the row, and any one of the spliced displays is selected as the second reference display of the column.
- an arbitrary point may be selected as a feature point on each of the horizontal line and the vertical line of the cross line pattern.
- the feature points on the horizontal line are called “first feature points”
- the feature points on the vertical line are called “second feature points”.
- Determine the vertical coordinate of the first feature point in each mosaic display screen and determine the horizontal coordinate of the second feature point in each mosaic display screen.
- the vertical offset distance and / or the horizontal offset distance of the corresponding mosaic display screen may be determined according to the vertical coordinate of each first feature point and the horizontal coordinate of each second feature point, respectively.
- the process of determining the vertical offset distance and / or the horizontal offset distance is similar to the process of determining the vertical offset distance and / or the horizontal offset distance of the mosaic display screen described above, and is omitted here as appropriate.
- 3a and 3b are schematic diagrams for explaining another example of determining an offset distance of a mosaic display screen according to an embodiment of the present invention, respectively.
- the first preset image and / or the second preset image are displayed in each stitching display screen, and the longitudinal offset of each stitching display screen is determined according to the position of the first feature point in the first preset image.
- the distance determines the lateral offset distance of each mosaic display screen according to the position of the second feature point in the second preset image.
- a first preset image is displayed in each mosaic display screen.
- the first preset image is a horizontal line pattern, wherein the horizontal line is located in the middle of the mosaic display screen and is parallel to the horizontal edge of the mosaic display screen. Then, any point can be selected as the first feature point on the horizontal line pattern. In this example, the first feature point is selected as point B.
- the ordinates of 32 and B 33 are y 11 , y 12 , y 13 , y 21 , y 22 , y 23 , y 31 , y 32 , y 33 .
- a vertical offset distance of each mosaic display screen may be determined.
- the first feature points B 11 , B 12 , B 13 , B 21 , B 22 , B 23 , B 31 , B 32 , B 33 the ordinates y 11 , y 12 , y 13 , y 21 , Y 22 , y 23 , y 31 , y 32 , y 33 .
- the vertical offset of the corresponding mosaic display screen is the difference between the vertical coordinates.
- the vertical offset of each mosaic display screen is converted into a vertical pixel distance as the vertical offset distance.
- a second preset image is displayed in each stitched display screen.
- the second preset image is a vertical line pattern, wherein the vertical line is located at a middle position of each of the mosaic display screens and is parallel to the vertical edge of the mosaic display screens. Then, an arbitrary point is selected as the second feature point on the vertical line pattern. In this example, the second feature point is selected as the point C.
- a lateral offset distance of each mosaic display screen may be determined.
- the abscissas x 11 , x 12 , x 13 , x 21 , X 22 , x 23 , x 31 , x 32 , x 33 it can be determined that the horizontal offset of the corresponding mosaic display is the difference between the abscissas.
- the lateral offset of each mosaic display screen is converted into a lateral pixel distance as the lateral offset distance.
- the first preset image is a horizontal line pattern and the second preset image is a vertical line pattern
- the first preset image is The image and the second preset image may be other images.
- the method for determining the offset distance of a mosaic display screen can determine the vertical offset distance and / or the horizontal direction of each mosaic display screen for a mosaic display system using a physical mosaic method. Offset distance, so as to provide a basis for correct image display of mosaic display system.
- FIG. 4 shows a schematic flowchart of a method for driving a mosaic display system according to an embodiment of the present invention.
- step S410 based on the vertical offset distance and / or the horizontal offset distance of the mosaic display in each mosaic display, a data signal for driving each mosaic display is modified.
- the vertical offset distance and / or the horizontal offset distance of each mosaic display screen may be determined according to the method as described with reference to FIGS. 1 to 3.
- step S420 using the modified data signal, the corresponding spliced display screen is driven for display.
- a data signal for driving each mosaic display screen is modified.
- each mosaic display screen (1,1), (1,2), (1,3), (2,1), (2,2), ( 2,3), (3,1), (3,2), and (3,3), according to the determined vertical offset distance of each mosaic display, corresponding to the data signals used to drive each mosaic display , So that the image displayed on the mosaic display does not shift in the horizontal direction.
- the data signals used to drive each of the tiled display screens are modified based on the lateral offset distance of the tiled display screens. For example, in the mosaic display system shown in FIG. 2, for each mosaic display screen (1,1), (1,2), (1,3), (2,1), (2,2), ( 2,3), (3,1), (3,2), and (3,3), according to the determined horizontal offset distance of the mosaic display, modify the data signals used to drive each mosaic display accordingly , So that the image displayed on the mosaic display screen will not be offset in the vertical direction.
- the corresponding modified data signal is output to the mosaic display to drive each mosaic display to display an image.
- the corresponding spliced display screen may have a number of pixel rows or The columns are displayed in black.
- FIG. 5a and FIG. 5b show schematic diagrams for explaining this process, in which the splicing display screen (2, 2) in the splicing display system shown in FIG. 2 is used as an example for description.
- the number of shifted pixel rows is k ⁇ (y 22 -y 21 ).
- the vertical offset distance is zero, it means that there is no offset pixel row; if the vertical offset distance is positive, it means that the offset pixel row is at the top edge of the mosaic display screen; if the vertical offset distance is A negative value indicates that the offset pixel row is on the lower edge of the mosaic display. Then, when the image is displayed, the shifted pixel rows are displayed in black.
- the number of shifted pixel columns is k ⁇ (x 22 -x 12 ). If the horizontal offset distance is zero, it indicates that there is no offset pixel column; if the horizontal offset distance is positive, it indicates that the offset pixel column is at the right edge of the display screen; if the horizontal offset distance is negative, it indicates that the pixel is offset.
- the shifted pixels are listed on the left edge of the display. Then, when the image is displayed, the shifted pixel columns are displayed in black.
- FIG. 6 shows a schematic block diagram of a control device 600 for a mosaic display system according to an embodiment of the present invention.
- the control device 600 may include a processor 601 and a memory 602.
- the memory 602 is coupled to the processor 601 and stores computer program instructions.
- the control device 600 may determine the offset distance of each of the mosaic display systems in the mosaic display system by executing the method as described above with reference to FIGS. 1 to 3.
- the control device 600 may further include an input / output device 603 that is coupled to the processor 601 and the memory 602 through a bus.
- control device 600 may modify the corresponding data signals for driving each of the mosaic display screens according to the determined offset distance of each of the mosaic display screens, and use the modified data signals to drive the corresponding mosaic display screens for display. .
- FIG. 7 shows a schematic block diagram of a mosaic display system 700 according to an embodiment of the present invention.
- the mosaic display system 700 may include a plurality of mosaic display screens 701 arranged in a matrix and a control device 600 as shown in FIG. 6.
- the control device 600 is coupled to each of the spliced display screens 701.
- the images displayed on the respective mosaic display screens are not shifted, and even if a high-speed moving image is displayed, no splitting occurs.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Graphics (AREA)
- Computer Hardware Design (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
Description
Claims (17)
- 一种用于在拼接显示系统中确定拼接显示屏的偏移距离的方法,其中,所述拼接显示系统包括排列成矩阵状的多个拼接显示屏,所述方法包括:在所述多个拼接显示屏的每一个中显示预设图像;在所述预设图像中选择特征点;确定各个所述拼接显示屏中的相应的所述特征点在所述拼接显示系统中的位置;以及基于所述特征点的位置,确定各个所述拼接显示屏的纵向偏移距离和横向偏移距离中至少之一。
- 根据权利要求1所述的方法,其中,基于所述特征点的位置,确定各个所述拼接显示屏的纵向偏移距离包括:针对每一行拼接显示屏,选择第一参考显示屏;针对该行拼接显示屏中的每一个拼接显示屏,确定所述拼接显示屏中的所述特征点的位置相对于所述第一参考显示屏中的所述特征点的位置的纵向偏移量;以及基于所述纵向偏移量,确定所述拼接显示屏相对于所述第一参考显示屏的纵向像素距离,作为所述纵向偏移距离。
- 根据权利要求2所述的方法,其中,所述纵向偏移量通过计算每一行拼接显示屏中的各个特征点的纵坐标与对应的所述第一参考显示屏中的所述特征点的纵坐标之间的差值来确定。
- 根据权利要求1所述的方法,其中,基于所述特征点的位置,确定各个所述拼接显示屏的横向偏移距离包括:针对每一列拼接显示屏,选择第二参考显示屏;针对该列拼接显示屏中的每一个拼接显示屏,确定所述拼接显示屏中的所述特征点的位置相对于所述第二参考显示屏中的所述特征点的位置的横向偏移量;以及基于所述横向偏移量,确定所述拼接显示屏相对于所述第二参考显示 屏的横向像素距离,作为所述横向偏移距离。
- 根据权利要求4所述的方法,其中,所述横向偏移量通过计算每一列拼接显示屏中的各个特征点的横坐标与对应的所述第二参考显示屏中的所述特征点的横坐标之间的差值来确定。
- 根据权利要求1所述的方法,其中,基于所述特征点的位置,确定各个所述拼接显示屏的纵向偏移距离包括:针对每一行拼接显示屏,确定相邻的拼接显示屏中的相应的特征点的位置之间的纵向偏移量;基于所述纵向偏移量,确定所述相邻的拼接显示屏之间的纵向像素距离;以及根据所述相邻的拼接显示屏之间的纵向像素距离,确定该行拼接显示屏中的各个拼接显示屏相对于第一参考显示屏的纵向像素距离,作为各个所述拼接显示屏的所述纵向偏移距离,其中,所述第一参考显示屏是该行拼接显示屏中的一个。
- 根据权利要求6所述的方法,其中,所述纵向偏移量通过计算所述相邻的拼接显示屏中的相应的特征点的纵坐标之间的差值来确定。
- 根据权利要求1所述的方法,其中,基于所述特征点的位置,确定各个所述拼接显示屏的横向偏移距离包括:针对每一列拼接显示屏,确定相邻的拼接显示屏中的相应的特征点的位置之间的横向偏移量;基于所述横向偏移量,确定所述相邻的拼接显示屏之间的横向像素距离;以及根据所述相邻的拼接显示屏之间的横向像素距离,确定该列拼接显示屏中的各个拼接显示屏相对于第二参考显示屏的横向像素距离,作为各个所述拼接显示屏的所述横向偏移距离,其中,所述第二参考显示屏是该列拼接显示屏中的一个。
- 根据权利要求8所述的方法,其中,所述横向偏移量通过计算所述相邻的拼接显示屏中的相应的特征点的横坐标之间的差值来确定。
- 根据权利要求1至9任意一项所述的方法,其中,所述预设图像是以下图像之一:由分别平行于所述拼接显示屏的相邻两边的线段相交而形成的交叉线图案;与所述拼接显示屏的矩阵的行方向平行的第一线图案;与所述拼接显示屏的矩阵的列方向平行的第二线图案。
- 根据权利要求1至9任意一项所述的方法,其中,所述预设图像包括第一预设图像和第二预设图像,其中,在所述第一预设图像中选择第一特征点以用于确定所述拼接显示屏之间的所述纵向偏移距离,在所述第二预设图像中选择第二特征点以用于确定所述拼接显示屏之间的所述横向偏移距离。
- 根据权利要求11所述的方法,其中,所述第一预设图像是与所述拼接显示屏的矩阵的行方向平行的第一线图案,所述第二预设图像是与所述拼接显示屏的矩阵的列方向平行的第二线图案。
- 一种用于驱动拼接显示系统的方法,其中,所述拼接显示系统包括排列成矩阵状的多个拼接显示屏,所述方法包括:基于所述多个拼接显示屏的各个的纵向偏移距离和/或横向偏移距离,修改用于驱动各个所述拼接显示屏的数据信号,其中,所述纵向偏移距离和/或横向偏移距离使用根据权利要求1至12任意一项所述的方法确定;以及使用修改后的数据信号,驱动相应的拼接显示屏进行显示。
- 根据权利要求13所述的方法,还包括:基于各个所述拼接显示屏的所述纵向偏移距离,使相应的拼接显示屏中与相应的所述纵向偏移距离对应的数量的像素行显示黑色,其中,所述像素行位于所述相应的拼接显示屏的与所述相应的纵向偏移距离的偏移方向相同的边缘;和/或基于各个所述拼接显示屏的所述横向偏移距离,使相应的拼接显示屏中与相应的所述横向偏移距离对应的数量的像素列显示黑色,其中,所述像素列位于所述相应的拼接显示屏的与所述相应的横向偏移距离的偏移方向相同的边缘。
- 一种用于拼接显示系统的控制装置,其中,所述拼接显示系统包括排列成矩阵状的多个拼接显示屏,所述控制装置包括:一个或多个处理器;存储器,其与所述处理器耦接,并存储有计算机程序指令,其中,所述计算机程序指令在被所述处理器执行时使得所述控制装置执行根据权利要求1至12任意一项所述的方法以确定各个拼接显示屏的纵向偏移距离和/或横向偏移距离。
- 根据权利要求15所述的控制装置,其中,所述计算机程序指令在被所述处理器执行时还使得所述控制装置:基于各个所述拼接显示屏的纵向偏移距离和/或横向偏移距离,修改用于驱动各个所述拼接显示屏的数据信号;以及使用修改后的数据信号,驱动相应的拼接显示屏进行显示。
- 一种拼接显示系统,包括:排列成矩阵状的多个拼接显示屏;以及根据权利要求15或16所述的控制装置,其与所述多个拼接显示屏耦接。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/612,548 US11397551B2 (en) | 2018-09-28 | 2018-09-28 | Method for determining offset distance of splicing screen and related apparatus |
PCT/CN2018/108337 WO2020062025A1 (zh) | 2018-09-28 | 2018-09-28 | 确定拼接显示屏的偏移距离的方法以及相关的装置 |
CN201880001527.2A CN111492341B (zh) | 2018-09-28 | 2018-09-28 | 确定拼接显示屏的偏移距离的方法以及相关的装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2018/108337 WO2020062025A1 (zh) | 2018-09-28 | 2018-09-28 | 确定拼接显示屏的偏移距离的方法以及相关的装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020062025A1 true WO2020062025A1 (zh) | 2020-04-02 |
Family
ID=69953255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2018/108337 WO2020062025A1 (zh) | 2018-09-28 | 2018-09-28 | 确定拼接显示屏的偏移距离的方法以及相关的装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11397551B2 (zh) |
CN (1) | CN111492341B (zh) |
WO (1) | WO2020062025A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112312045B (zh) * | 2020-11-03 | 2023-06-13 | 深圳云瀚科技有限公司 | 视频墙桌面图像分割处理方法、装置及存储介质、系统 |
CN116527986B (zh) * | 2023-04-26 | 2024-06-04 | 天地阳光通信科技(北京)有限公司 | 一种分屏文本显示控制方法、设备及存储介质 |
CN116758825B (zh) * | 2023-08-18 | 2023-12-12 | 长春希达电子技术有限公司 | 一种小间距球形显示屏模块处理方法及显示装置 |
CN117173161B (zh) * | 2023-10-30 | 2024-02-23 | 杭州海康威视数字技术股份有限公司 | 内容安全检测方法、装置、设备及系统 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101324824A (zh) * | 2008-06-27 | 2008-12-17 | 广东威创视讯科技股份有限公司 | 一种基于图像感应器的拼接墙定位系统及定位方法 |
US20090251393A1 (en) * | 2008-04-04 | 2009-10-08 | Fan Chen-Tung | Scalable led display system |
CN102096577A (zh) * | 2011-02-14 | 2011-06-15 | 广东威创视讯科技股份有限公司 | 显示设备、拼接显示系统及配置显示设备位置信息的方法 |
CN104132621A (zh) * | 2014-08-08 | 2014-11-05 | 广东威创视讯科技股份有限公司 | 一种拼接屏的拼接处的检查方法 |
CN105304002A (zh) * | 2015-10-21 | 2016-02-03 | 利亚德光电股份有限公司 | Led显示屏拼接误差的检测方法和装置 |
CN105468326A (zh) * | 2016-01-08 | 2016-04-06 | 京东方科技集团股份有限公司 | 一种显示装置及其信息通道的调整方法和装置 |
CN105824593A (zh) * | 2016-03-09 | 2016-08-03 | 京东方科技集团股份有限公司 | 拼接屏显示系统及拼接显示方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7538876B2 (en) * | 2006-06-12 | 2009-05-26 | The Boeing Company | Efficient and accurate alignment of stereoscopic displays |
US8114297B2 (en) * | 2006-10-03 | 2012-02-14 | Siemens Industry, Inc. | Wet oxidation of soot |
JP5560771B2 (ja) * | 2010-02-26 | 2014-07-30 | セイコーエプソン株式会社 | 画像補正装置、画像表示システム、画像補正方法 |
US9007279B2 (en) * | 2012-05-16 | 2015-04-14 | Nokia Corporation | Controlling one or more displays |
US10409542B2 (en) * | 2016-01-04 | 2019-09-10 | Rex HUANG | Forming a larger display using multiple smaller displays |
-
2018
- 2018-09-28 CN CN201880001527.2A patent/CN111492341B/zh active Active
- 2018-09-28 WO PCT/CN2018/108337 patent/WO2020062025A1/zh active Application Filing
- 2018-09-28 US US16/612,548 patent/US11397551B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090251393A1 (en) * | 2008-04-04 | 2009-10-08 | Fan Chen-Tung | Scalable led display system |
CN101324824A (zh) * | 2008-06-27 | 2008-12-17 | 广东威创视讯科技股份有限公司 | 一种基于图像感应器的拼接墙定位系统及定位方法 |
CN102096577A (zh) * | 2011-02-14 | 2011-06-15 | 广东威创视讯科技股份有限公司 | 显示设备、拼接显示系统及配置显示设备位置信息的方法 |
CN104132621A (zh) * | 2014-08-08 | 2014-11-05 | 广东威创视讯科技股份有限公司 | 一种拼接屏的拼接处的检查方法 |
CN105304002A (zh) * | 2015-10-21 | 2016-02-03 | 利亚德光电股份有限公司 | Led显示屏拼接误差的检测方法和装置 |
CN105468326A (zh) * | 2016-01-08 | 2016-04-06 | 京东方科技集团股份有限公司 | 一种显示装置及其信息通道的调整方法和装置 |
CN105824593A (zh) * | 2016-03-09 | 2016-08-03 | 京东方科技集团股份有限公司 | 拼接屏显示系统及拼接显示方法 |
Also Published As
Publication number | Publication date |
---|---|
US11397551B2 (en) | 2022-07-26 |
CN111492341B (zh) | 2023-09-05 |
US20210357170A1 (en) | 2021-11-18 |
CN111492341A (zh) | 2020-08-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020062025A1 (zh) | 确定拼接显示屏的偏移距离的方法以及相关的装置 | |
WO2019153941A1 (zh) | 颜色补偿方法、补偿装置以及显示装置 | |
US11568513B2 (en) | Image processing method and device for spliced panel, and spliced panel | |
US20070058034A1 (en) | Stereoscopic image display device, stereoscopic display program, and stereoscopic display method | |
US10916186B2 (en) | Display apparatus, electroluminescent display panel and method of acquiring and displaying image by display apparatus | |
US9324769B2 (en) | Pixel arrangement structure, display device and display method thereof | |
WO2016197459A1 (zh) | 液晶面板及其驱动方法 | |
US9830884B2 (en) | Multi-display device, display system including the same and display method thereof | |
WO2016145776A1 (zh) | 一种像素排列结构、显示装置及显示方法 | |
TWI437551B (zh) | 影像防窺方法 | |
US9520103B2 (en) | RGB-to-RGBW color converting system and method | |
WO2020073918A1 (zh) | 显示面板及显示方法 | |
WO2016123988A1 (zh) | 显示面板以及显示装置 | |
WO2016197450A1 (zh) | 液晶面板及其驱动方法 | |
WO2016119396A1 (zh) | 像素结构、阵列基板及其控制方法和显示器件 | |
JP7184788B2 (ja) | 集積回路の表示駆動方法、集積回路、ディスプレイスクリーン及び表示装置 | |
WO2017096964A1 (zh) | 3d显示面板组件、3d显示装置及其驱动方法 | |
US10475394B2 (en) | Driving method and driving device for liquid crystal display, and liquid crystal display | |
US20160035266A1 (en) | Display and sub-pixel matrix thereof | |
US10672110B2 (en) | Information processing system, information processing apparatus, output apparatus, program, and recording medium | |
US11636830B2 (en) | Driving method and apparatus of display panel | |
US8294771B2 (en) | Image correction device and image correction method thereof | |
US11538393B2 (en) | Text boundary processing method, display panel, and computer-readable storage medium | |
CN114143524B (zh) | 激光投影系统及投影方法 | |
WO2018006669A1 (zh) | 视差融合方法和装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18934966 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18934966 Country of ref document: EP Kind code of ref document: A1 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18934966 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 28.09.2021) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18934966 Country of ref document: EP Kind code of ref document: A1 |