KR102042893B1 - Rendering device of image displaying system - Google Patents

Abstract

Point light sources of the first type having a first spacing in the first direction D1 and having a second spacing greater than the first spacing in a second direction perpendicular to the first direction and repeatedly arranged to emit light of the same color ( The image display system for displaying an image using a display module including an R pixel, the scaling unit outputting second image data by scaling the resolution of first image data provided from the outside based on the resolution of the display module. ; And rendering the second image data by using a plurality of rendering filters to generate rendering data, wherein the first rendering filter or the first rendering filter and the first rendering filter are for the point light sources that are adjacent to each other in the first direction and emit light in different colors. Rendering is performed by applying one of the other second rendering filters, and the rendering unit performs rendering by applying the first rendering filter and the second rendering filter to the point light sources adjacent to each other in the second direction.

Description

Rendering device of image display system {RENDERING DEVICE OF IMAGE DISPLAYING SYSTEM}

The present invention relates to an image processing technique, and more particularly, to a rendering apparatus of an image display system for rendering or converting general image data into image data suitable for display in an image display system configured in a snowboard.

Media facade is a compound word of facade and media that represents the center of the exterior of a building. It refers to the implementation of media functions by installing organic light emitting diode (LED) lights on the exterior walls of a building. It is a system.

On the other hand, media facades are actively used in various fields as media for delivering information as well as visual beauty of buildings (for example, advertising), and recently, media facades have been applied to snowboards.

Korea Patent Publication No. 2015-0004481 (January 13, 2015) Korean Patent Publication No. 2015-0121864 (published Oct. 30, 2015)

The present invention provides a rendering apparatus of an image display system that renders image data to display an image using point light sources arranged on a snowboard.

The present invention provides a rendering apparatus of an image display system that can reduce system cost and improve efficiency.

In order to achieve the above object, the rendering apparatus of the image display system according to the exemplary embodiments of the present invention has a first interval in a first direction D1 and is larger than the first interval in a second direction perpendicular to the first direction. In an image display system displaying an image using a display module including a first type of point light sources (R pixels) having a second large interval and repeatedly arranged to emit light of the same color, the first image provided from the outside A scaling unit configured to output second image data by scaling the resolution of data based on the resolution of the display module; And rendering the second image data by using a plurality of rendering filters to generate rendering data, wherein the first rendering filter or the first rendering filter and the first rendering filter are for the point light sources that are adjacent to each other in the first direction and emit light in different colors. Rendering may be performed by applying one of the other second rendering filters, and the rendering unit may perform rendering by applying the first rendering filter and the second rendering filter to the adjacent point light sources in the second direction. have.

In example embodiments, the display module includes strips arranged along a second direction, wherein the strips are repeatedly arranged at the first interval in the first direction and emit light in a first color. A first strip comprising point sources; A second strip including second color point light sources repeatedly arranged at the first interval in the first direction and emitting light in a second color; And a third strip including third color point light sources repeatedly arranged at the first interval in the first direction and emitting light in a third color.

In example embodiments, the first rendering filter includes a first weight value for the corresponding pixel and a second weight value for the first adjacent pixel adjacent to the corresponding pixel in a second direction. The total sum of the two weights is 1, and the second rendering filter may include a weight of 1 for the corresponding pixel.

In example embodiments, point light sources adjacent to each other in the second direction may be staggered from each other.

In example embodiments, the first rendering filter includes an eleventh weight value for the corresponding pixel, a twelfth weight value for the twelfth adjacent pixel adjacent to the first pixel in the first direction, and the twelfth adjacent pixel and the second direction. 13 th and 14 th weights for the 13 th and 14 th adjacent pixels adjacent to each other, wherein the total sum of the 11 th to 14 th weights is 1, and the second rendering filter is equal to the 21 th weight for the corresponding pixel. A twenty-second weight value for a twenty-second adjacent pixel adjacent to the corresponding pixel in a first direction, and twenty-third and twenty-fourth weight values for the twenty-third and twenty-fourth adjacent pixels adjacent to the corresponding pixel in a second direction; The total sum of the twenty-first to twenty-fourth weights may be one.

In example embodiments, the first rendering filter may have a pixel size of 3 rows * 3 columns based on the image data.

In example embodiments, the rendering unit may include: first to third line memories configured to store three adjacent line data among line data included in the second image data; And a first calculator configured to generate first rendering line data based on the three line data and the first rendering filter, wherein the first rendering line data may be included in the rendering data.

In example embodiments, the rendering unit may further include: a fourth line memory configured to sequentially store line data included in the second image data; A second calculator configured to generate second rendering line data using line data stored in the fourth line memory and a first sub rendering filter; First to third sub line memories sequentially storing the second rendering line data; And a third calculator configured to generate third rendering line data based on three subline data stored in the first to third subline memories and a second subrendering filter, and provide the third rendering line data to the gray level correction unit. The second capacity of each of the sub-line memories is 1/3 of the first capacity of the fourth line memory, the first sub-rendering filter has a pixel size of 1 row * 3 columns, and the second sub-rendering filter is It can have a pixel size of three rows by one column.

According to embodiments of the present invention, a rendering apparatus of an image display system applies a first rendering filter to odd rows (or odd columns) and a first rendering filter to even rows (or even columns). By applying a second rendering filter different from, the image may be displayed using the point light sources arranged on the snowboard.

The rendering apparatus of the image display system may reduce the system cost and improve the efficiency by sequentially rendering using a relatively simple sub-rendering filter.

1 is a diagram illustrating an image display system according to example embodiments.
FIG. 2 is a diagram illustrating an example of an image display system of FIG. 1.
3 is a diagram illustrating an example of an image processing module included in the image display system of FIG. 1.
4A and 4B illustrate an example of a display module included in the image display system of FIG. 1.
FIG. 5 is a diagram illustrating an example of a rendering filter used in a rendering unit included in the image processing module of FIG. 3.
6 is a diagram illustrating an example of a display module included in the image display system of FIG. 1.
FIG. 7 is a diagram illustrating an example of a rendering filter used in a rendering unit included in the image processing module of FIG. 3.
8 is a diagram illustrating an example of a display module included in the image display system of FIG. 1.
9 is a diagram illustrating an example of a rendering filter used in a rendering unit included in the image processing module of FIG. 3.
FIG. 10 is a diagram illustrating a process of determining a scaling ratio of an image in the image processing module of FIG. 3.
FIG. 11 is a diagram illustrating an example of rendering filters used in the image processing module of FIG. 3.
12A and 12B are diagrams illustrating an example of a rendering unit included in the image processing module of FIG. 3.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions of the same elements are omitted.

1 is a diagram illustrating an image display system according to example embodiments, and FIG. 2 is a diagram illustrating an example of the image display system of FIG. 1.

1 and 2, the image display system 100 may include an image control apparatus 110 and LED light source arrays 120 (or a display module or a display module). The LED light source arrays 120 may be disposed on one surface of the snowboard and include a plurality of LED point light sources 121.

As shown in FIG. 1, a plurality of LED point light sources 121 are sequentially arranged in a first direction D1 (for example, in a horizontal direction) so that one LED light source array (or string, Constituting a strip, the plurality of LED light source arrays 120 having a particular spacing in a second direction D2 (eg, in a vertical direction, in a second direction perpendicular to the first direction D1). It can be arranged with to configure one display module. Here, one LED light source array includes a data signal (or data) through one data line (or one data line corresponding to one of the RGB sub pixels when one LED light source includes RGB sub pixels). Receiving voltage, data current), LED point light sources included in one LED light source array can share the driving voltage (eg, maximum voltage, minimum voltage, ground voltage, common voltage, etc.) driving them.

The image control apparatus 110 receives image data (eg, image data provided from an external device such as a smart phone), performs scaling and rendering on the image data, and outputs the output image data generated through the LED. It may be distributed or provided to the light source arrays 120.

As illustrated in FIG. 1, the image control apparatus 110 may include a receiving module 111, an image processing module 112, and a distribution module 113.

The receiving module 211 is an external device (for example, a smart phone, a portable media player, etc.) connected to an external device (for example, the video display system 100 through a wired or wireless communication technology), or input image data. , First image data).

The image processing module 112 may generate output image data (or rendering data) by performing scaling and rendering on the image data. The image processing module 112 may display an image optimized for the image display system 100 by performing rendering optimized for the arrangement of the point light sources in the LED light source arrays 120. Detailed operations of the image processing module 112 will be described in detail with reference to FIG. 3.

The distribution module 113 may distribute or provide output image data to the LED light source arrays 120. The distribution module 113 corresponds to driving integrated circuits (eg, scan driver and data driver) of a general display device, and simultaneously or sequentially transmits line data included in the output image data to the corresponding LED light source arrays 120. Can provide.

3 is a diagram illustrating an example of an image processing module included in the image display system of FIG. 1, and FIGS. 4A and 4B illustrate an example of a display module included in the image display system of FIG. 1, and FIG. 5. FIG. 3 is a diagram illustrating an example of a rendering filter used in a rendering unit included in the image processing module of FIG. 3.

First, referring to FIGS. 1 and 3, the image processing module 112 may include a scaling unit 310 and a rendering unit 320.

The scaling unit 310 may output the second image data by scaling the resolution of the first image data provided from the receiving module 111 (or the outside) based on the resolution of the display module. That is, the scaling unit 310 may scale the image data based on the resolution of the image data and the total resolution of the LED light source arrays 120 (or the arrangement of the LED point light sources 121) (or the down scaling ratio). ) Can be determined. Here, the scaling ratio may be used to determine the size of a rendering filter described later. For example, when the resolution of the image data is 1980 * 1080 and the total resolution of the LED light source arrays 220 is 640 * 360, the image analyzer 310 may determine the scaling ratio as 1/3.

The renderer 320 generates rendering data by rendering second image data (that is, scaled image data) using a plurality of rendering filters, but adjacent to each other in the first direction D1 and emitting light in different colors. Rendering is performed by applying one of the first rendering filter or the second rendering filter different from the first rendering filter for the light sources, and the first rendering filter and the second rendering filter for the point light sources adjacent to each other in the second direction D2. You can apply rendering to each.

Here, each of the rendering filters is a filter defining grayscale values (or position information of grayscale values) corresponding to the LED point light source 111 and their weights, and the size, arrangement (or arrangement) of the point light sources 111. ), May be variously set according to the size, type, etc. of the image (ie, the image corresponding to the image data).

Referring to FIG. 4A, the LED light source arrays 120 (or the display module) may have a first distance L1 in a first direction D1 and a second direction D2 perpendicular to the first direction D1. For example, the first type of point light sources (eg, red point light sources R emitting red) having a second interval L2 larger than the first distance L1 and repeatedly arranged to emit light of the same color. It may include.

The LED light source arrays 120 (or the display module) may include first to third types of strips arranged along the second direction D2. The first type of strip (or first strip, first color strip) is repeatedly arranged at a first distance L1 in the first direction D1 and emits light of a first color (eg red). The first color point light sources R may be included. Similarly, the second type of strip (or second strip, second color strip) is repeatedly arranged with a first spacing L1 in the first direction D1 and with a second color (eg green). The second color light sources G may emit light. In addition, the third type of strip (or third strip, third color strip) is repeatedly arranged with a first spacing L1 in the first direction D1 and in a third color (for example blue). It may include a third color point light sources (B) for emitting light.

For reference, the point light source disposed in the strip has a third size L3 (eg 1 cm) and has a fourth spacing L4 (eg 1 cm) with another point light source of the same type adjacent thereto. Can be spaced apart. On the other hand, the strip may have a specific width L5 (eg 1 cm).

When the third size L3, the fourth size L4, and the width L5 are equal to each other (for example, all 1 cm), the first reference pixel having a square shape (for example, 2 * 2 cm) P_R1 may be set and a rendering filter for second image data may be determined based on the first reference pixel P_R1. Here, the first reference pixel P_R1 is a pixel corresponding to one data value included in the second image data, and one data value corresponds to subpixels (eg, R / G / B sub pixels). Sub data values (eg, R sub data value, G sub data value, and B sub data value).

Referring to the first odd row ODD1, only half of the red point light source R may be included in the first reference pixel P_R1. Therefore, the rendering unit 320 renders the first row of the second image data (for example, the red image data included in the second image data) by using the first rendering filter RF1 illustrated in FIG. 5. By performing the above, a data value for the red point light source R may be calculated.

Here, the first rendering filter RF1 includes a first weight for the pixel and a second weight for the first adjacent pixel adjacent in the second direction D2 with the pixel, and the first weight and the second weight. The total sum of the weights may be one. For example, each of the first and second weights may be 1/2.

Meanwhile, referring to the first even row EVEN1, the green point light source R may be included in the first reference pixel P_R1. Therefore, the renderer 320 renders the first row of the second image data (for example, the green image data included in the second image data) by using the second rendering filter, thereby generating the green point light source ( The data value for G) can be calculated. Here, the second rendering filter may include a weight of 1 for the corresponding pixel. That is, it may have a weight only for the corresponding pixel.

Referring to the second odd row ODD2, similar to the first odd row ODD1, half of the blue point light sources B may be included in different first reference pixels P_R1. Therefore, the rendering unit 320 renders the first row of the second image data (eg, blue image data included in the second image data) by using the first rendering filter RF1 illustrated in FIG. 5. By performing the above, a data value for the blue point light source B may be calculated.

Meanwhile, referring to the second even row EVEN2, similarly to the first even row EVEN1, the red point light source R may be completely included in the first reference pixel P_R1. Accordingly, the renderer 320 renders a second row of second image data (for example, red image data included in the second image data) by using the second rendering filter, thereby rendering a red point light source ( The data value for R) can be calculated.

That is, the rendering unit 320 performs rendering by applying the first rendering filter RF1 to the odd rows ODD1 to ODD4, and the even rows EVEN1 to EVEN4 adjacent to the odd rows ODD1 to ODD4. ) May be rendered by applying a second rendering filter different from the first rendering filter RF1, or may not perform a separate rendering.

Meanwhile, referring to the rendering operation of the rendering unit 320 based on the first reference pixel P_R1 and the red point light source R, the rendering unit 320 may display the first rendering filter RF1 in the first row of the red image data. ) To calculate data values for the red point light sources R arranged in the first odd row ODD1, and apply a second rendering filter to the second row of the red image data to make the second even row EVEN2. A data value is calculated for the red point light sources R arranged at the red dot light source R arranged in the fourth odd row ODD4 by applying the first rendering filter RF1 to the fourth row of the red image data. To calculate the data value.

4A and 4B, except for rows and columns, the LED light source arrays 120 shown in FIG. 4B may be substantially the same as the LED light source arrays 120 described with reference to FIG. 4A.

That is, the LED light source arrays 120 illustrated in FIG. 4A are arranged based on the first direction D1 defined in the row direction and the second direction D2 defined in the column direction, and the LEDs illustrated in FIG. 4B. The light source arrays 120 may be arranged based on a first direction D1 defined in a column direction and a second direction D2 defined in a row direction. Therefore, duplicate descriptions will not be repeated.

The rendering unit 320 performs rendering by applying the third rendering filter RF3 to the odd columns CO1 to CO4, and performs the rendering on the even columns CE1 to CE4 adjacent to the odd columns CO1 to CO4. For example, a fourth rendering filter different from the third rendering filter RF3 may be applied to perform rendering or may not perform a separate rendering. Here, the third rendering filter RF3 includes a first weight for the pixel and a second weight for the first adjacent pixel adjacent to the pixel in the second direction D2 (or row direction). The total sum of the first weight and the second weight may be one. For example, each of the first and second weights may be 1/2. Meanwhile, the fourth rendering filter RF4 may be substantially the same as the second rendering filter RF2.

For reference, when the LED light source arrays 120 have the structure shown in FIG. 4B, the rendering unit 320 performs the rendering using the third rendering filter RF3, thereby rendering the first rendering filter RF1. The memory capacity (or required amount) can be reduced as compared with the use case. This will be described later with reference to FIGS. 12A and 12B.

As described with reference to FIGS. 4A through 5, the renderer 320 may perform the first rendering filter RF1 (or, for odd rows ODD1 to ODD4 (or odd columns CO1 to CO4). The third rendering filter RF3) is applied to perform rendering, and the even rows EVEN1 to EVEN4 (or even columns CE1 to CE4) are not separately rendered, thereby performing a plurality of strips. LED light source arrays 120 (or the display module) may be configured to display an optimal image.

6 is a diagram illustrating an example of a display module included in the image display system of FIG. 1, and FIG. 7 is a diagram illustrating an example of a rendering filter used in a renderer included in the image processing module of FIG. 3.

4A and 6, each of the plurality of strips shown in FIG. 6 may be substantially the same as each of the plurality of strips shown in FIG. 4A. Therefore, duplicate descriptions will not be repeated.

As illustrated in FIG. 6, point light sources adjacent to each other in the second direction D2 may be alternately disposed. That is, the plurality of strips may be alternately arranged along the second direction D2, for example, strips corresponding to even rows EVEN1 to EVEN4 may be strips corresponding to odd rows ODD1 to ODD4. The first direction D1 may be shifted by the fourth interval L4 and may be disposed.

In this case, a second reference pixel P_R2 having a square shape (for example, 1.4 * 1.4 cm) may be set, and a rendering filter for the second image data may be determined based on the third reference pixel P_R3. . Here, the third reference pixel P_R3 is a pixel corresponding to one data value included in the second image data, similarly to the first reference pixel P_R1 described with reference to FIG. 4A. It may include sub data values (eg, R sub data value, G sub data value, and B sub data value) corresponding to the sub pixels (eg, R / G / B sub pixels).

Referring to the first odd row ODD1, only one fourth of the red point light source R may be included in the third reference pixel P_R3. Accordingly, the renderer 320 renders the first row of the second image data (for example, the red image data included in the second image data) by using the fifth rendering filter RF5 illustrated in FIG. 7. By performing the above, a data value for the red point light source R may be calculated.

Here, the fifth rendering filter RF5 may include an eleventh weight value for the pixel and a twelfth weight value for the twelfth adjacent pixel adjacent to the pixel in the first direction D1 (for example, in the left direction in the row direction). And the thirteenth and fourteenth weights of the thirteenth and fourteenth adjacent pixels adjacent to the twelfth adjacent pixel in the second direction D2 (eg, up / down in the column direction). The total sum of the eleventh to fourteenth weights is 1, and for example, each of the eleventh to fourteenth weights may be 1/4.

Meanwhile, referring to the first even row EVEN1, one quarter of the green point light source R may be included in the third reference pixel P_R3, the third reference pixel of the previous row, and the third reference pixel of the next row. have. Therefore, the rendering unit 320 renders the first row of the second image data (eg, green image data included in the second image data) using the sixth rendering filter RF6 illustrated in FIG. 7. By performing the above, a data value for the green point light source G may be calculated. Here, the sixth rendering filter RF6 may include a twenty-first weight value for the pixel, a twenty-second weight value for the twenty-second adjacent pixel adjacent to the pixel in the first direction D1 (eg, a left direction), and Twenty-third and twenty-fourth weights of the twenty-third and twenty-fourth adjacent pixels adjacent to the pixel in the second direction D2 (eg, up / down direction). Here, the total sum of the twenty-first to twenty-fourth weights is 1, for example, each of the twenty-first to twenty-fourth weights may be 1/4.

Referring to the second odd row ODD2, similar to the first odd row ODD1, one fourth of the blue point light source B may be included in the third reference pixel P_R3. Therefore, the renderer 320 renders the first row of the second image data (for example, the blue image data included in the second image data) by using the fifth rendering filter RF5, and thus, the blue color is rendered blue. The data value for the point light source B can be calculated.

On the other hand, looking at the second even row (EVEN2), similar to the first even row (EVEN1), the red point light source (R) is included in the four reference pixels (P_R3) different from each other, and thus, the rendering unit 320 Renders the second row of the second image data (for example, the red image data included in the second image data) by using the sixth rendering filter RF6 to perform the rendering for the red point light source R. The data value can be calculated.

That is, the rendering unit 320 performs rendering by applying the fifth rendering filter RF5 to the odd rows ODD1 to ODD4, and the even rows EVEN1 to EVEN4 adjacent to the odd rows ODD1 to ODD4. ) May be rendered by applying a sixth rendering filter RF6 different from the fifth rendering filter RF5, or may not perform a separate rendering.

FIG. 8 is a diagram illustrating an example of a display module included in the image display system of FIG. 1, and FIG. 9 is a diagram illustrating an example of a rendering filter used in a renderer included in the image processing module of FIG. 3.

6 and 8, except for rows and columns, the LED light source arrays 120 illustrated in FIG. 8 may be substantially the same as the LED light source arrays 120 described with reference to FIG. 6.

That is, the LED light source arrays 120 illustrated in FIG. 6 are arranged based on the first direction D1 defined in the row direction and the second direction D2 defined in the column direction, and the LEDs illustrated in FIG. 8. The light source arrays 120 may be arranged based on a first direction D1 defined in a column direction and a second direction D2 defined in a row direction. Therefore, duplicate descriptions will not be repeated.

The rendering unit 320 performs rendering by applying the seventh rendering filter RF7 illustrated in FIG. 9 to the odd columns CO1 to CO4, and the even columns adjacent to the odd columns CO1 to CO4. Rendering may be performed by applying an eighth rendering filter RF8 different from the seventh rendering filter RF7 to CE1 through CE4. As described with reference to FIG. 4B, the rendering unit 320 performs rendering using the seventh and eighth rendering filters RF7 and RF8, thereby rendering the fifth and sixth rendering filters RF5 and RF6. The memory capacity (or required amount) can be reduced as compared with the use case. This will be described later with reference to FIGS. 12A and 12B.

As described with reference to FIGS. 6 to 9, the rendering unit 320 may include the fifth rendering filter RF5 (or, for odd rows ODD1 to ODD4 (or odd columns CO1 to CO4). The rendering is performed by applying the seventh rendering filter RF7) and the sixth rendering filter RF6 (or the eighth) for the even rows EVEN1 to EVEN4 (or the even columns CE1 to CE4). The rendering may be performed by applying the rendering filter RF8 to enable the LED light source arrays 120 (or the display module) composed of a plurality of strips to display an optimal image.

FIG. 10 is a diagram illustrating a process of determining a scaling ratio of an image in the image processing module of FIG. 3, and FIG. 11 is a diagram illustrating an example of rendering filters used in the image processing module of FIG. 3.

Referring to FIG. 10, a relationship between image data and rendering data is illustrated.

For example, the first image data DATA1 may correspond to the first rendering data DATA_REN1, and for example, one LED point light source 111 (or, as one pixel, for example, The eleventh pixel P11 disposed at the intersection of the first row and the first column may correspond to four grayscale values (that is, grayscale values included in the first image data DATA1) based on the area. . In this case, the scaling ratio described above may be 1/2. On the other hand, when the LED point light source 111 emits light, light is emitted in all directions based on the LED point light source 111 (or the eleventh pixel P11), thereby affecting the first light region AR1. Can be crazy

Referring to FIG. 11, the eleventh rendering filter RF11 may be set in consideration of the case illustrated in FIG. 10. For example, the eleventh rendering filter RF1 has a three-row * three-column pixel size based on the image data (for example, the first image data DATA1), and the first light region described with reference to FIG. 10. In consideration of the area of AR1, the weight of the center grayscale value corresponding to the LED point light source 211 in the first rendering filter RF1 is 1/4, and is directly adjacent to the center grayscale value, The weight of the first peripheral grayscale values positioned at the left / right is 1/8, and the weight of the second peripheral grayscale values positioned at the diagonal (or diagonal) direction with respect to the center grayscale value is 1/16 days. Can be. The total sum of these weights may be one.

Meanwhile, the twelfth rendering filter RF12 and the thirteenth rendering filter RF13 may be sub rendering filters constituting the eleventh rendering filter RF11. As described with reference to FIGS. 12A and 12B, the rendering unit 320 may perform rendering operations on image data in two steps in order to reduce the size of the memory device. In this case, the twelfth and thirteenth renderings may be performed. Filters RF12 and RF13 may be sequentially applied to generate and output a result (ie, rendering data) that is substantially the same as that of the eleventh rendering filter RF11.

For example, the twelfth rendering filter RF12 may have a one-row * three-column pixel size based on the image data, and the thirteenth rendering filter RF13 may have a three-row * 1 column pixel size based on the image data. have. The eleventh rendering filter RF11 may be derived through a multiplication operation (or a matrix multiplication operation) of the twelfth rendering filter RF12 and the thirteenth rendering filter RF13.

12A and 12B are diagrams illustrating an example of a renderer included in the image processing module of FIG. 3.

Referring to FIG. 12A, the renderer 320 may include first to third line memories 1211, 1212, and 1213, and a first calculator 1221. The renderer 320 illustrated in FIG. 12A may render image data by using the eleventh render filter RF11 described with reference to FIG. 11.

The first to third line memories 1211, 1212, and 1213 may store three line data adjacent to each other among line data included in the image data. Here, the line data may correspond to each row of the image data, and may include a gray value included in each row. In this case, each of the first to third line memories 1211, 1212, and 1213 may have a size corresponding to a row of the image data (for example, when the resolution of the image data is 1920 * 1080, the first to the third line memories 1211, 1212, 1213). The size of the line memory may be 1920 bytes).

For example, the first line memory 1211 stores first line data 3m + 1st LINE DATA (where m is an integer of 0 or more) corresponding to the first row, and the second line memory 712 The second line data 3m + 2nd LINE DATA corresponding to the second row may be stored, and the third line memory 1213 may store third line data 3m + 3rd LINE DATA corresponding to the third row. .

Since the eleventh rendering filter RF11 described with reference to FIG. 5B has a three-row * three-column pixel size (particularly, three-row pixel size), the rendering unit 320 renders using the eleventh rendering filter RF11. In order to store three line data, the rendering unit 320 illustrated in FIG. 12A may include three line memories 1211, 1212, and 1213 (for example, 1920 byte *). Three).

Meanwhile, the first calculator 1221 may generate first rendering line data based on three line data and the eleventh rendering filter RF11. Here, the first rendering line data may be included in the rendering data.

Referring to FIG. 12B, the renderer 320 may include a fourth line memory 1214, a second calculator 1222, first to third subline memories 1241, 1242, 1243, and a third calculator 1250. ) May be included. The renderer 320 illustrated in FIG. 12B may render image data by using the twelfth and thirteenth rendering filters RF12 and RF13 described with reference to FIG. 11.

The fourth line memory 1214 may sequentially store the line data included in the image data. Since the twelfth rendering filter RF12 has a pixel size of one row * 3 columns, only one line memory may be required for rendering using the twelfth rendering filter RF12. The fourth line memory 1214 may be substantially the same as the first to third line memories 1211, 1212, and 1213 described with reference to FIG. 7A, and may have a size of, for example, 1920 bytes.

The second calculator 1122 may generate second rendering line data using line data stored in the fourth line memory 1214 and the twelfth rendering filter RF12.

The first to third sub line memories 1241, 1242, and 1243 may be included in the second rendering data and sequentially store adjacent rendering line data. Since operations of the first to third sub line memories 1241, 1242 and 1243 are substantially the same as operations of the first to third line memories 1211, 1212 and 1213 described with reference to FIG. The description will not be repeated.

Meanwhile, the capacity (or size) of each of the first to third sub line memories 1241, 1242, and 1243 may be the fourth line memory 1214 (or the first to third line memories 1211, 1212, or the like). 1213) may be 1/3 of the dose of each). For example, each of the first to third sub-line memories 1241, 1242, 1243 may have a size of 640 bytes. This is because the size of the second rendering line data (particularly, the size of the row) is reduced through the rendering operation using the second rendering filter RF2 in the second calculator 1222.

Accordingly, the renderer 320 illustrated in FIG. 12B includes the fourth line memory 1214 of 1980 bytes and the first to third sub line memories 1241, 1242, and 1243 of 640 bytes, that is, 2. Since a memory size of 1980 bytes is required, the size of the memory device may be reduced compared to the capacity of the memory (eg, 3 * 1980 bytes) required by the rendering unit 320 shown in 12a. That is, the construction cost of the rendering unit 320 (or the image display system 100) may be reduced.

On the other hand, the third calculator 1250 is based on the three sub-line data stored in the first to third sub-line memories 1241, 1242, 1243 and the third rendering line data based on the thirteenth rendering filter RF13. May be generated and provided to the distribution module 113.

As described with reference to FIGS. 12A and 12B, the rendering unit 320 may be configured to sequentially perform rendering operations, thereby not only reducing unnecessary rendering operations for a video or the like, but also rendering units 320. By reducing the required capacity of the memory device required for the), it is possible to reduce the construction cost of the renderer 320 (or the image display system 100).

The present invention can be applied to an image processing apparatus and a media facade.

As described above, although described with reference to the embodiments of the present invention, those of ordinary skill in the art variously modified the present invention without departing from the spirit and scope of the present invention described in the claims below. It will be understood that modifications and variations can be made.

100: video display system 210: video control device
211: receiving module 212: image processing module
213: distribution module 220: LED light source arrays
221: LED point light source 310: the image analysis unit
320: renderer
1211 to 1214: first to fourth line memories
1221, 1222: first and second calculators
1241 to 1243: first to third sub line memories
1250: third calculator

Claims (8)

Point light sources of the first type having a first spacing in the first direction D1 and having a second spacing greater than the first spacing in a second direction perpendicular to the first direction and repeatedly arranged to emit light of the same color ( In the image display system for displaying an image using a display module comprising a R pixel,
A scaling unit configured to output second image data by scaling the resolution of first image data provided from the outside based on the resolution of the display module; And
Rendering the second image data using a plurality of rendering filters to generate rendering data, wherein the first rendering filter or the first rendering filter is different from the first rendering filter for the point light sources that are adjacent to each other in the first direction and emit light in different colors. A rendering unit configured to perform rendering by applying one of the second rendering filters, and apply the first rendering filter and the second rendering filter to the point light sources adjacent to each other in the second direction;
The display module includes strips arranged along a second direction.
The strips,
A first strip comprising first color point light sources repeatedly arranged at the first interval in the first direction and emitting light in a first color;
A second strip including second color point light sources repeatedly arranged at the first interval in the first direction and emitting light in a second color; And
And a third strip including third color point light sources repeatedly arranged at the first interval in the first direction and emitting a third color.
Point light sources adjacent to each other in the second direction are staggered from each other,
The first rendering filter may include an eleventh weight value for the pixel, a twelfth weight value for a twelfth adjacent pixel adjacent to the pixel in the first direction, and a thirteenth and fifth symbol adjacent to the twelfth adjacent pixel in the second direction. Thirteenth and fourteenth weights for fourteen adjacent pixels,
The total sum of the eleventh to fourteenth weights is one,
The second rendering filter includes a twenty-first weighting factor for the pixel, a twenty-second weighting factor for the twenty-second neighboring pixel adjacent to the pixel, and a twenty-third and twenty-fourth neighboring neighboring the pixel in the second direction; Including twenty-third and twenty-fourth weights for the pixels,
The sum total of the twenty-first to twenty-fourth weights is one. delete delete delete delete Point light sources of the first type having a first spacing in the first direction D1 and having a second spacing greater than the first spacing in a second direction perpendicular to the first direction and repeatedly arranged to emit light of the same color ( In the image display system for displaying an image using a display module comprising a R pixel,
A scaling unit configured to output second image data by scaling the resolution of first image data provided from the outside based on the resolution of the display module; And
Rendering the second image data using a plurality of rendering filters to generate rendering data, wherein the first rendering filter or the first rendering filter is different from the first rendering filter for the point light sources that are adjacent to each other in the first direction and emit light in different colors. A rendering unit configured to perform rendering by applying one of the second rendering filters, and apply the first rendering filter and the second rendering filter to the point light sources adjacent to each other in the second direction;
The display module includes strips arranged along a second direction.
The strips,
A first strip comprising first color point light sources repeatedly arranged at the first interval in the first direction and emitting light in a first color;
A second strip including second color point light sources repeatedly arranged at the first interval in the first direction and emitting light in a second color; And
And a third strip including third color point light sources repeatedly arranged at the first interval in the first direction and emitting a third color.
Point light sources adjacent to each other in the second direction are staggered from each other,
The first rendering filter has a pixel size of 3 rows * 3 columns based on the image data.
The rendering unit,
A fourth line memory sequentially storing line data included in the second image data;
A second calculator configured to generate second rendering line data using line data stored in the fourth line memory and a first sub rendering filter;
First to third sub line memories sequentially storing the second rendering line data; And
A third calculator configured to generate third rendering line data based on three subline data stored in the first to third subline memories and a second subrendering filter, and provide the third rendering line data to the distribution module;
The second capacity of each of the sub line memories is 1/3 of the first capacity of the fourth line memory,
The first sub-rendering filter has a pixel size of 1 row * 3 columns,
And the second sub-rendering filter has a pixel size of 3 rows * 1 column. delete delete

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