KR20190020969A - Rendering device of image displaying system - Google Patents

Abstract

The present invention relates to a rendering device of an image displaying system, which is capable of rendering image data so as to display an image with point light sources arranged on a snowboard. According to the present invention, the rendering device of an image displaying system, the image display system displaying an image through a display module having a first type point light sources (R pixel) emitting the same color as each other and arranged repeatedly at first intervals in a first direction (D1) and at second intervals larger than the first intervals in a second direction vertical to the first direction, the rendering device includes: a scaling part for scaling resolution of first image data provided from the outside on the basis of resolution of the display module to output second image data; and a rendering part for rendering the second image data through a plurality of rendering filters to produce rendering data, applying the first rendering filter or one of the first rendering filter and the second rendering filter to the point light sources adjacent to each other in the first direction and emitting different colors from each other to perform rendering, and applying the first rendering filter and the second rendering filter to the point light sources adjacent to each other in the second direction to perform rendering.

Description

[0001] RENDERING DEVICE OF IMAGE DISPLAYING SYSTEM [0002]

The present invention relates to an image processing technology, and more particularly, to a rendering apparatus for an image display system that renders or converts general image data into image data suitable for display in an image display system configured on a snowboard.

Media facade is a compound word of facade and media that point to the center of the outer surface of a building. It means implementing the media function by installing an organic light emitting diode (LED) light on the outer wall of the building. The media facade system implements the above function .

On the other hand, the media façade is actively used in various fields as a medium (for example, advertisement) not only for visual beauty of a building but also for transmitting information. Recently, a media facade has been applied to snowboards.

Korean Laid-Open Patent No. 2015-0004481 (published on January 13, 2015) Korean Laid-Open Patent No. 2015-0121864 (Published Oct. 30, 2015)

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

An object of the present invention is to provide a rendering apparatus for an image display system capable of reducing system cost and improving efficiency.

According to an aspect of the present invention, there is provided a rendering apparatus for an image display system, the rendering apparatus comprising: a first display unit for displaying a first image in a first direction; In an image display system for displaying an image using a display module including a first type of point light sources (R pixels) having large second intervals and repeatedly arranged to emit light of the same color, A scaling unit for scaling the resolution of the data based on the resolution of the display module and outputting second image data; And a second rendering filter for rendering point light sources that are adjacent to each other in the first direction and emit different colors, rendering the second image data using the plurality of rendering filters to generate rendering data, And a rendering unit that performs rendering by applying one of the other second rendering filters and applies rendering for the point light sources adjacent to each other in the second direction by applying the first rendering filter and the second rendering filter, have.

According to one embodiment, the display module comprises strips arranged in a second direction, the strips being arranged in a first direction with the first spacing in a first direction and having a first color A first strip comprising point light 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 with the first spacing in the first direction and emitting light in a third color.

According to an embodiment, the first rendering filter includes a first weight for a corresponding pixel and a second weight for a first neighboring pixel adjacent to the corresponding pixel in a second direction, and the first weight and the second weight, The total sum of the two weights is 1, and the second rendering filter may include a weight of 1 for the pixel.

According to an embodiment, the point light sources adjacent to each other in the second direction may be interlaced.

According to an embodiment, the first rendering filter may include an eleventh weight for the pixel, a twelfth weight for the twelfth adjacent pixel in the first direction adjacent to the corresponding pixel, a twelfth weight for the twelfth adjacent pixel, Wherein the sum of the eleventh to fourteenth weights is 1, and the second rendering filter includes a twenty-first weight for the pixel and a twelfth weight for the corresponding pixel A twenty-second weight for the twenty-second adjacent pixel in the first direction with respect to the corresponding pixel, and twenty-third and twenty-fourth weights for the twenty-third and twenty-fourth adjacent pixels in the second direction, The total sum of the twenty-first through twenty-fourth weights may be one.

According to an embodiment, the first rendering filter may have a size of 3 rows * 3 columns based on the image data.

According to an embodiment of the present invention, the rendering unit may include first to third line memories for storing three adjacent line data among line data included in the second image data; And a first calculator for generating the first rendering line data based on the three line data and the first rendering filter, and the first rendering line data may be included in the rendering data.

According to an embodiment, the rendering unit may include: a fourth line memory for sequentially storing line data included in the second image data; A second calculator for generating 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 for sequentially storing the second rendering line data; And a third calculator for generating third rendering line data based on the third sub-line data stored in the first through third sub-line memories and the second sub-rendering filter and providing the third rendering line data to the tone corrector, 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 size of one row * 3 column pixels, and the second sub- 3 rows * 1 column pixel size.

According to embodiments of the present invention, the rendering apparatus of the image display system applies a first rendering filter to the hole performances (or odd columns), and the even render operations (or even columns) A second rendering filter different from the second rendering filter may be applied to display an image using the point light sources arranged on the snowboard.

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

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

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

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

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

1, a plurality of LED point light sources 121 are sequentially arranged in a first direction D1 (for example, a horizontal direction) to form one LED light source array (or a string, And a plurality of LED light source arrays 120 are arranged in a second direction D2 (for example, in a second direction perpendicular to the first direction D1, So that one display module can be configured. Here, one LED light source array is arranged to receive a data signal (or a data signal) through one data line (or one data line corresponding to one of the RGB subpixels when one LED light source includes RGB subpixels) Voltage and data current), and the LED point light sources included in one LED light source array can share a driving voltage (e.g., a maximum voltage, a minimum voltage, a ground voltage, a common voltage, etc.) driving them.

The image control device 110 receives image data (for example, image data provided from an external device such as a smart phone), performs scaling and rendering on the image data, and outputs the generated output image data to the LED To the light source arrays 120.

1, the image control apparatus 110 may include a reception module 111, an image processing module 112, and a distribution module 113. [

The receiving module 211 receives image data (or input image data) from an external device (for example, a smart phone, a portable media player, or the like as an external device connected to the image display system 100 through a wired / , First image data) can be received.

The image processing module 112 may generate the output image data (or rendering data) by performing a scaling operation on the image data and rendering. The image processing module 112 can perform an optimal rendering on the arrangement of the point light sources in the LED light source arrays 120 to thereby display an image optimized in the image display system 100. [ The specific operation of the image processing module 112 will be described in detail with reference to FIG.

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

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

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 reception module 111 (or external) based on the resolution of the display module. That is, the scaling unit 310 scales the image data in accordance with 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) Can be determined. Here, the scaling ratio can be used to determine the size of a rendering filter to be described later. For example, if 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 analysis unit 310 may determine the scaling ratio to be 1/3.

The rendering unit 320 renders the second image data (i.e., the scaled image data) using the plurality of rendering filters to generate rendering data, which are adjacent to each other in the first direction D1, The first rendering filter and the second rendering filter for the light sources, rendering is performed by applying one of the first rendering filter and the second rendering filter to the adjacent point light sources in the second direction D2, Respectively, so that rendering can be performed.

Each of the rendering filters is a filter that defines gray level values (or position information of gray level values) corresponding to the LED point light source 111 and their weights, and the size, arrangement (or array ), And the size, type, etc. of the image (i.e., the image corresponding to the image data).

Referring to FIG. 4A, the LED light source arrays 120 (or the display module) are arranged in a second direction D2 perpendicular to the first direction D1 with a first distance L1 in a first direction D1, (E.g., red point light sources R emitting red light) having a second spacing L2 greater than the first spacing L1 and being repeatedly arranged to emit light of the same color, . ≪ / RTI >

The LED light source arrays 120 (or display module) may include first to third types of strips arranged in a second direction D2. The first type of strip (or first strip, first color strip) is repeatedly arranged with a first spacing L1 in a first direction D1 to emit light in a first color (e.g., red) And may include first color point light sources (R). Similarly, a second type of strip (or second strip, second color strip) is repeatedly arranged with a first spacing L1 in a first direction D1 and a second color (e.g., green) And second color point light sources G for emitting light. The third type of strip (or third strip, third color strip) is repeatedly arranged with a first spacing L1 in a first direction D1 and a third color (e.g., blue) And third color point light sources B that emit light.

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

When the third size L3, the fourth size L4 and the width L5 are the same (for example, all 1 cm), a first reference pixel (for example, 2 * 2 cm) P_R1) and determine a rendering filter for the second image data based on the first reference pixel (P_R1). Here, the first reference pixel P_R1 corresponds to one data value included in the second image data, and one data value corresponds to the sub pixels (for example, R / G / B sub pixels) (E.g., R sub data value, G sub data value, B sub data value).

In the first hole operation ODD1, only half of the red point light source R can be included in the first reference pixel P_R1. Accordingly, the rendering unit 320 may render the first row of the second image data (for example, the red image data included in the second image data) using the first rendering filter RF1 shown in FIG. 5 To calculate the data value for the red point light source (R).

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

On the other hand, the green point light source R may be included in the first reference pixel P_R1 in the first even operation EVEN1. Accordingly, the rendering unit 320 may render the first row of the second image data (for example, the green image data included in the second image data) using the second rendering filter, G). ≪ / RTI > Here, the second rendering filter may include a weight of 1 for that pixel. That is, it can have a weight only for the pixel.

Referring to the second hole performance ODD2, half of the blue point light source B can be included in the first reference pixel P_R1, which is different from each other, similar to the first hole performance ODD1. Accordingly, the rendering unit 320 may render the first row of the second image data (for example, blue image data included in the second image data) using the first rendering filter RF1 shown in FIG. 5 The data value for the blue point light source B can be calculated.

On the other hand, referring to the second even run EVEN2, the first even run EVEN1 Similarly, the red point light source R may be included in the first reference pixel P_R1. Accordingly, the rendering unit 320 may render the second row of the second image data (e.g., the red image data included in the second image data) using the second rendering filter, R). ≪ / RTI >

That is, the rendering unit 320 performs rendering by applying the first rendering filter RF1 to the odd operations ODD1 to ODD4, and performs rendering on the even operations EVEN1 to EVEN4 adjacent to the odd operations ODD1 to ODD4. , It is possible to apply a second rendering filter different from the first rendering filter RF1 to perform rendering or not to perform a separate rendering.

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 includes a first rendering filter RF1 ) To calculate the data values for the red point light sources R arranged in the first odd run ODD1 and applying the second render filter to the second row of red image data to obtain the second even run EVEN2, (R) arranged in the fourth odd-numbered row ODD4 by applying a first rendering filter RF1 to the fourth row of red image data, and calculating a data value for the red point light sources R Lt; / RTI > can be calculated.

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 shown in FIG. 4A are arranged with respect to a first direction D1 defined in the row direction and a second direction D2 defined in the column direction, The light source arrays 120 may be arranged in a first direction D1 defined in the column direction and a second direction D2 defined in the row direction. Therefore, redundant description is not repeated.

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

When the LED light source arrays 120 have the structure shown in FIG. 4B, the rendering unit 320 performs rendering using the third rendering filter RF3, thereby rendering the first rendering filter RF1 as It is possible to reduce the memory capacity (or the required amount) as compared with the case of using. This will be described later with reference to Figs. 12A and 12B.

4A to 5, the rendering unit 320 may include a first rendering filter RF1 (or a second rendering filter) for the hole operations ODD1 to ODD4 (or the odd columns CO1 to CO4) (Or the third rendering filter RF3) and does not perform rendering for the even runs EVEN1 to EVEN4 (or even columns CE1 to CE4), so that a plurality of strips So that the LED light source arrays 120 (or the display module) composed of the LED light source arrays 120 (or display modules) can display an optimal image.

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

Referring to FIGS. 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, redundant description is not repeated.

As shown in FIG. 6, the point light sources adjacent in the second direction D2 may be arranged interdigitally. That is, the plurality of strips may be alternately arranged in the second direction D2, for example, the strips corresponding to the even performances EVEN1 to EVEN4 may be arranged in strips corresponding to the hole performances ODD1 to ODD4, In the first direction D1 by a fourth interval L4 with respect to the first direction D1.

In this case, a second reference pixel P_R2 of a square shape (for example, 1.4 * 1.4 cm) can be set, and a rendering filter for the second image data can 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, similar to the first reference pixel P_R1 described with reference to FIG. 4A, and one data value (E.g., R sub data value, G sub data value, B sub data value) corresponding to subpixels (for example, R / G / B subpixels).

Referring to the first hole performance (ODD1), only 1/4 of the red point light source R may be included in the third reference pixel P_R3. Accordingly, the rendering unit 320 may render the first row of the second image data (for example, the red image data included in the second image data) using the fifth rendering filter RF5 shown in FIG. 7 To calculate the data value for the red point light source (R).

Here, the fifth rendering filter RF5 is configured to calculate the twelfth weight value for the pixel adjacent to the twelfth adjacent pixel in the first direction D1 (for example, in the left direction in the row direction) And thirteenth and fourteenth weights for the thirteenth and fourteenth adjacent pixels in the second direction D2 (e.g., up / down direction in the column direction) with the twelfth adjacent pixel , And the total sum of the 11th to 14th weights is 1, for example, each of the 11th to 14th weights may be 1/4.

On the other hand, when looking at the first paired performance EVEN1, 1/4 of the green point light source R can be included in the third reference pixel P_R3, the third reference pixel in the previous row, and the third reference pixel in the next row have. Accordingly, the rendering unit 320 may render the first row of the second image data (for example, the green image data included in the second image data) using the sixth rendering filter RF6 shown in FIG. 7 To calculate the data value for the green point light source (G). Here, the sixth rendering filter RF6 includes a twenty-first weight for the pixel, a twenty-second weight for the twenty-second adjacent pixel in the first direction D1 (for example, the left direction) And 23rd and 24th weights for the 23rd and 24th adjacent pixels in the second direction D2 (e.g., up / down direction). Here, the total sum of the 21 th to 24 th weights is 1, for example, each of the 21 th to 24 th weights may be 1/4.

Referring to the second hole performance ODD2, one fourth of the blue point light source B may be included in the third reference pixel P_R3, similar to the first hole performance ODD1. Accordingly, the rendering unit 320 performs rendering on the first row of the second image data (e.g., blue image data included in the second image data) using the fifth rendering filter RF5, The data value for the point light source B can be calculated.

Similarly, the red point light source R is included in four different reference pixels P_R3, and therefore, the rendering unit 320 may perform the first even operation (EVEN1) (For example, red image data included in the second image data) by using the sixth rendering filter RF6 to generate a red image for the red point light source R The data value can be calculated.

That is, the rendering unit 320 performs rendering by applying a fifth rendering filter RF5 to the odd operations ODD1 to ODD4, and performs rendering on the even operations EVEN1 to EVEN4 adjacent to the odd operations ODD1 to ODD4. , It is possible to apply a sixth rendering filter RF6 different from the fifth rendering filter RF5 to perform rendering or not to perform a separate rendering.

FIG. 8 is a diagram showing 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 the rendering unit included in the image processing module of FIG.

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

That is, the LED light source arrays 120 shown in FIG. 6 are arranged with respect to a first direction D1 defined in the row direction and a second direction D2 defined in the column direction, The light source arrays 120 may be arranged in a first direction D1 defined in the column direction and a second direction D2 defined in the row direction. Therefore, redundant description is not repeated.

The rendering unit 320 performs rendering by applying the seventh rendering filter RF7 shown in FIG. 9 to the odd-numbered columns CO1 to CO4, and performs rendering on even-numbered columns (CO1 to CO4) CE1 to CE4 by applying an eighth rendering filter RF8 different from the seventh rendering filter RF7. 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 as It is possible to reduce the memory capacity (or the required amount) as compared with the case of using. This will be described later with reference to Figs. 12A and 12B.

6 through 9, the rendering unit 320 performs a fifth rendering filter RF5 (or RF5) for the hole operations ODD1 through ODD4 (or odd-numbered columns CO1 through CO4) (Or the seventh rendering filter RF7), and the sixth rendering filter RF6 (or the eighth rendering filter RF6) for the even operations EVEN1 to EVEN4 (or even columns CE1 to CE4) Rendering filter RF8) to perform rendering, so that the LED light source arrays 120 (or the display module) composed of a plurality of strips can display an optimal image.

FIG. 10 is a view for explaining a process of determining an image scaling ratio 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.

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

For example, the first image data (DATA1) may correspond to the first rendering data (DATA_REN1), for example, one LED point light source 111 (or one pixel, for example, (The eleventh pixel P11 disposed at the intersection of the first row and the first column) may correspond to the four tone values (i.e., the tone 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, the light diverges in all directions on the basis of the LED point light source 111 (or the eleventh pixel P11) to affect the first light area AR1 I can go crazy.

Referring to FIG. 11, the eleventh rendering filter RF11 may be set in consideration of the case shown in FIG. For example, the eleventh rendering filter RF1 has a size of 3 rows * 3 columns based on the image data (e.g., the first image data DATA1) The weight for the center gradation value corresponding to the LED point light source 211 in the first rendering filter RF1 is 1/4 in consideration of the area of the first gradation value AR1, The weight for the first surrounding grayscale values located on the left / right is 1/8, and the weight for the second surrounding grayscale values located in the diagonal (or diagonal) direction with respect to the center grayscale value is 1/16 . The sum of these weights may be one.

The twelfth rendering filter RF12 and the thirteenth rendering filter RF13 may be sub-rendering filters constituting the eleventh rendering filter RF11. 12A and 12B, the rendering unit 320 may perform a rendering operation on the image data in two steps in order to reduce the size of the memory device. In this case, the twelfth and thirteenth rendering The filters RF12 and RF13 may be sequentially applied to generate and output substantially the same result as the eleventh rendering filter RF11 (i.e. rendering data).

For example, the 12th rendering filter RF12 has a 1 row * 3 column pixel size based on the image data, and the 13th rendering filter RF13 has 3 rows * 1 column pixel size based on the image data. have. The eleventh rendering filter RF11 may be derived through multiplication (or matrix multiplication) between the twelfth rendering filter RF12 and the thirteenth rendering filter RF13.

12A and 12B are views showing an example of a rendering unit included in the image processing module of FIG.

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

The first through third line memories 1211, 1212, and 1213 may store three line data that are adjacent to each other among the line data included in the image data. Here, the line data may correspond to each row of the image data, and may include the tone 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 the row of the image data (for example, when the resolution of the image data is 1920 * 1080, The size of the line memory may be 1920 bytes).

For example, the first line memory 1211 stores the 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 stores (3m + 2nd line DATA) corresponding to the second row, and the third line memory 1213 stores the 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 3-row * 3-column pixel size (in particular, a 3-row pixel size), the rendering unit 320 performs a rendering operation using the eleventh rendering filter RF11 The rendering unit 320 shown in Figure 12A may include three line memories 1211, 1212 and 1213 (e.g., 1920 bytes * Three).

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

12B, the rendering unit 320 includes a fourth line memory 1214, a second calculator 1222, first through third sub-line memories 1241, 1242, and 1243, and a third calculator 1250 ). The rendering unit 320 illustrated in FIG. 12B may render the image data using the twelfth and thirteenth rendering filters RF12 and RF13 described with reference to FIG.

The fourth line memory 1214 may sequentially store the line data (LINE DATA) included in the image data. Since the twelfth rendering filter RF12 has a size of one row and three columns, only one line memory may be required for rendering using the twelfth rendering filter RF12. The fourth line memory 1214 is substantially the same as the first through 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 11222 may generate the second rendering line data using the line data LINE DATA stored in the fourth line memory 1214 and the twelfth rendering filter RF12.

The first through third sub-line memories 1241, 1242, and 1243 may sequentially store the render line data included in the second render data and adjacent to each other. The operations of the first to third sub-line memories 1241, 1242 and 1243 are substantially the same as those of the first to third line memories 1211, 1212 and 1213 described with reference to FIG. 12A, The explanation is not repeated.

The capacities (or sizes) of the first to third sub-line memories 1241, 1242 and 1243 are the same as those of the fourth line memory 1214 (or the first to third line memories 1211, 1212, 1213), respectively). For example, the size of each of the first to third sub-line memories 1241, 1242, and 1243 may be 640 bytes. 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. [

12B includes the 4th 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 it requires 1980 bytes of memory, it is possible to reduce the size of the memory device compared to the capacity of memory (e.g., 3 * 1980 bytes) required by the rendering unit 320 shown in FIG. 12a. That is, the construction cost of the rendering unit 320 (or the image display system 100) can be reduced.

On the other hand, the third calculator 1250 calculates three subline data stored in the first to third subline memories 1241, 1242, and 1243 and the third render line data And provide it 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 reducing unnecessary rendering operations on moving images and the like, and the rendering unit 320 The required capacity of the memory device required by the rendering unit 320 (or the image display system 100) can be reduced, thereby reducing the construction cost of the rendering unit 320 (or the image display system 100).

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

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood that the invention may be varied and changed without departing from the scope of the invention.

100: image display system 210: image control device
211: Receiving module 212: Image processing module
213: Distribution module 220: LED light source arrays
221: LED point light source 310: image analysis unit
320:
1211 to 1214: First to fourth line memories
1221, 1222: First and second calculators
1241 to 1243: First to third sub-line memories
1250: The third calculator

Claims (8)

The first type of point light sources (first type of point light sources) having a first interval in a first direction (D1) and a second interval larger than the first interval in a second direction perpendicular to the first direction and repeatedly arranged to emit light of the same color R pixel) in a display system including a display module,
A scaling unit for scaling the resolution of the first image data provided from the outside based on the resolution of the display module to output second image data; And
The first rendering filter and the second rendering filter are different from the first rendering filter or the first rendering filter for point light sources that render the second image data using the plurality of rendering filters to generate rendering data, And a rendering unit for performing rendering by applying one of the first rendering filter and the second rendering filter and rendering the first rendering filter and the second rendering filter for the point light sources adjacent to each other in the second direction, The rendering device of the system. The display module of claim 1, wherein the display module comprises strips arranged along a second direction,
The strips,
A first strip including 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 light in a third color. 3. The apparatus of claim 2, wherein the first rendering filter includes a first weight for a corresponding pixel and a second weight for a first adjacent pixel in a second direction,
Wherein the sum of the first weight and the second weight is 1,
Wherein the second rendering filter includes a weight of 1 for the corresponding pixel. [3] The apparatus of claim 2, wherein the point light sources adjacent to each other in the second direction are alternately arranged. 5. The apparatus of claim 4, wherein the first rendering filter comprises: an eleventh weight for the pixel; a twelfth weight for the twelfth adjacent pixel in the first direction; Th < / RTI > and < RTI ID = 0.0 > 14 <
The total sum of the 11th to 14th weights is 1,
Wherein the second rendering filter includes a twenty-first weight for the pixel, a twenty-second weight for the twenty-second adjacent pixel in the first direction, a twenty-second weight for the twenty- 23rd and 24th weights for the pixels,
And the sum of the twenty-first through twenty-fourth weights is one. 5. The rendering apparatus of claim 4, wherein the first rendering filter has a size of 3 rows * 3 columns based on the image data. 7. The image processing apparatus according to claim 6,
First to third line memories for storing three adjacent line data among line data included in the second image data; And
And a first calculator for generating the first rendering line data based on the three line data and the first rendering filter,
Wherein the first rendering line data is included in the rendering data. 7. The image processing apparatus according to claim 6,
A fourth line memory for sequentially storing line data included in the second image data;
A second calculator for generating 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 for sequentially storing the second rendering line data; And
And a third calculator for generating third rendering line data based on the third sub-line data stored in the first through third sub-line memories and the second sub-rendering filter and providing the generated third rendering line data to the tone corrector,
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 size of one row * three columns pixels,
Wherein the second sub-rendering filter has a size of 3 rows * 1 column pixels.

Images