Surveillance system including video wall

1. A surveillance system comprising:

a video wall formed by a plurality of monitors;

a plurality of video decoders connected to the plurality of monitors in a one-to-one correspondence and configured to respectively determine at least on image among a plurality of images based on first information, respectively receive an image-allocation area of the at least one image based on second information, the plurality of images respectively being provided from a plurality of cameras, and respectively input the image-allocation area to the plurality of monitors according to the one-to-one correspondence; and

a video wall controller configured to provide each of the plurality of video decoders with the first information indicating at least one camera corresponding to the at least one image and the second information indicating the image-allocation area of the at least one image based on an entire image displayed on the video wall,

wherein the plurality of monitors form an n×m matrix in the video wall in which the plurality of images have different sizes in the entire image,

wherein the video wall controller is further configured to:

set a horizontal axis coordinate and a vertical axis coordinate of the entire image within a predetermined range;

set the horizontal axis coordinate and the vertical axis coordinate of the n×m matrix of monitors within the predetermined range;

obtain first coordinates of vertices of the images in the entire image;

obtain second coordinates of vertices of each of the monitors forming the n×m matrix; and

generate the first information and the second information based on a comparison between the first coordinates and the second coordinates.

2. The surveillance system of claim 1 , wherein the video wall controller is further configured to generate the first information for a first monitor corresponding to a first video decoder based on whether a first image is at least partially assigned to the first monitor according to the entire image.

3. The surveillance system of claim 2 , wherein the video wall controller is further configured to determine that the first image is at least partially assigned to the first monitor, when:

a horizontal axis coordinate of a left upper vertex of the first monitor is not greater than a horizontal axis coordinate of a right lower vertex of the first image;

a horizontal axis coordinate of a right lower vertex of the first monitor is not less than a horizontal axis coordinate of a left upper vertex of the first image;

the vertical axis coordinate of the left upper vertex of the first monitor is not greater than the vertical axis coordinate of the right lower vertex of the first image; or

the vertical axis coordinate of the right lower vertex of the first monitor is not less than the vertical axis coordinate of the left upper vertex of the first image.

4. The surveillance system of claim 1 , wherein the video wall controller is further configured to, when a first image is at least partially assigned to a first monitor, generate the second information for the first monitor based on coordinates of a left upper vertex and a right lower vertex of the image-allocation area.

5. The surveillance system of claim 4 , wherein the video wall controller is further configured to obtain coordinates of the left upper vertex of the image-allocation area for the first monitor by determining that:

when a horizontal axis coordinate of a left upper vertex of the first monitor is greater than a horizontal axis coordinate of a left upper vertex of the first image, a horizontal axis coordinate of the left upper vertex of the image-allocation area is identical to the horizontal axis coordinate of the left upper vertex of the first monitor;

when a vertical axis coordinate of the left upper vertex of the first monitor is greater than a vertical axis coordinate of the left upper vertex of the first image, a vertical axis coordinate of the left upper vertex of the image-allocation area is identical to the vertical axis coordinate of the left upper vertex of the first monitor;

when the horizontal axis coordinate of the left upper vertex of the first monitor is not greater than the horizontal axis coordinate of the left upper vertex of the first image, the horizontal axis coordinate of the left upper vertex of the image-allocation area is identical to the horizontal axis coordinate of the left upper vertex of the first image; and

when the vertical axis coordinate of the left upper vertex of the first monitor is not greater than the vertical axis coordinate of the left upper vertex of the first image, the vertical axis coordinate of the left upper vertex of the image-allocation area is identical to the vertical axis coordinate of the left upper vertex of the first image.

6. The surveillance system of claim 4 , wherein the video wall controller is further configured to obtain coordinates of the right lower vertex of the image-allocation area for the first monitor by determining that:

when a horizontal axis coordinate of a right lower vertex of the first monitor is greater than a horizontal axis coordinate of a right lower vertex of the first image, a horizontal axis coordinate of the right lower vertex of the image-allocation area is identical to the horizontal axis coordinate of the right lower vertex of the first image;

when a vertical axis coordinate of the right lower vertex of the first monitor is greater than a vertical axis coordinate of the right lower vertex of the first image, a vertical axis coordinate of the right lower vertex of the image-allocation area is identical to the vertical axis coordinate of the right lower vertex of the first image;

when the horizontal axis coordinate of the right lower vertex of the monitor is not greater than the horizontal axis coordinate of the right lower vertex of the first image, the horizontal axis coordinate of the right lower vertex of the image-allocation area is identical to the horizontal axis coordinate of the right lower vertex of the first monitor; and

when the vertical axis coordinate of the right lower vertex of the first monitor is not greater than the vertical axis coordinate of the right lower vertex of the first image, the vertical axis coordinate of the right lower vertex of the image-allocation area is identical to the vertical axis coordinate of the right lower vertex of the first monitor.

7. The surveillance system of claim 1 , wherein the predetermined range is 0 to 1.

8. A method of controlling a video wall in a surveillance system comprising:

providing each of a plurality of video decoders with first information indicating at least one camera corresponding to at least one image and second information indicating an image-allocation area of the at least one image based on an entire image displayed on the video wall,

wherein the video wall comprises a plurality of monitors,

wherein the plurality of monitors form an n×m matrix in the video wall in which the plurality of images have different sizes in the entire image,

wherein the plurality of video decoders connected to the plurality of monitors in a one-to-one correspondence,

wherein the plurality of video decoders respectively determine the at least one image among a plurality of images based on the first information, respectively receive the image-allocation area of the at least one image based on the second information, the plurality of images respectively being provided from a plurality of cameras, and respectively input the image-allocation area to the plurality of monitors according to the one-to-one correspondence;

setting a horizontal axis coordinate and a vertical axis coordinate of the entire image of the video wall within a predetermined range;

setting the horizontal axis coordinate and the vertical axis coordinate of the n×m matrix of monitors within the predetermined range;

obtaining first coordinates of vertices of the images in the entire image;

obtaining second coordinates of vertices of each of the monitors forming the n×m matrix; and

generating the first information and the second information based on a comparison between the first coordinates and the second coordinates.

9. The method of claim 8 , further comprising generating the first information for a first monitor corresponding to a first video decoder based on whether a first image is at least partially assigned to the first monitor according to the entire image.

10. The surveillance system of claim 9 , further comprising determining that the first image is at least partially assigned to the first monitor, when:

a horizontal axis coordinate of a left upper vertex of the first monitor is not greater than a horizontal axis coordinate of a right lower vertex of the first image;

a horizontal axis coordinate of a right lower vertex of the first monitor is not less than a horizontal axis coordinate of a left upper vertex of the first image;

the vertical axis coordinate of the left upper vertex of the first monitor is not greater than the vertical axis coordinate of the right lower vertex of the first image; or

the vertical axis coordinate of the right lower vertex of the first monitor is not less than the vertical axis coordinate of the left upper vertex of the first image.

11. The method of claim 8 , further comprising, when a first image is at least partially assigned to a first monitor, generating the second information for the first monitor based on coordinates of a left upper vertex and a right lower vertex of the image-allocation area.

12. The surveillance system of claim 11 , further comprising obtaining coordinates of the left upper vertex of the image-allocation area for the first monitor by determining that:

when a horizontal axis coordinate of a left upper vertex of the first monitor is greater than a horizontal axis coordinate of a left upper vertex of the first image, a horizontal axis coordinate of the left upper vertex of the image-allocation area is identical to the horizontal axis coordinate of the left upper vertex of the first monitor;

when a vertical axis coordinate of the left upper vertex of the first monitor is greater than a vertical axis coordinate of the left upper vertex of the first image, a vertical axis coordinate of the left upper vertex of the image-allocation area is identical to the vertical axis coordinate of the left upper vertex of the first monitor;

when the horizontal axis coordinate of the left upper vertex of the first monitor is not greater than the horizontal axis coordinate of the left upper vertex of the first image, the horizontal axis coordinate of the left upper vertex of the image-allocation area is identical to the horizontal axis coordinate of the left upper vertex of the first image; and

when the vertical axis coordinate of the left upper vertex of the first monitor is not greater than the vertical axis coordinate of the left upper vertex of the first image, the vertical axis coordinate of the left upper vertex of the image-allocation area is identical to the vertical axis coordinate of the left upper vertex of the first image.

13. The method of claim 11 , further comprising obtaining coordinates of the right lower vertex of the image-allocation area for the first monitor by determining that:

when a horizontal axis coordinate of a right lower vertex of the first monitor is greater than a horizontal axis coordinate of a right lower vertex of the first image, a horizontal axis coordinate of the right lower vertex of the image-allocation area is identical to the horizontal axis coordinate of the right lower vertex of the first image;

when a vertical axis coordinate of the right lower vertex of the first monitor is greater than a vertical axis coordinate of the right lower vertex of the first image, a vertical axis coordinate of the right lower vertex of the image-allocation area is identical to the vertical axis coordinate of the right lower vertex of the first image;

when the horizontal axis coordinate of the right lower vertex of the monitor is not greater than the horizontal axis coordinate of the right lower vertex of the first image, the horizontal axis coordinate of the right lower vertex of the image-allocation area is identical to the horizontal axis coordinate of the right lower vertex of the first monitor; and

when the vertical axis coordinate of the right lower vertex of the first monitor is not greater than the vertical axis coordinate of the right lower vertex of the first image, the vertical axis coordinate of the right lower vertex of the image-allocation area is identical to the vertical axis coordinate of the right lower vertex of the first monitor.

14. The method of claim 8 , wherein the predetermined range is 0 to 1.