TWI769681B - Display system for displaying a panoramic image and operation method thereof - Google Patents

Abstract

A display system for displaying a panoramic image and an operation method thereof are provided. The display system for displaying a panoramic image includes N projectors and a controller. The N projectors project N sub-images based on N image data to form an all-round view image. Each of the sub-images has a sub-image overlap area so that two adjacent sub-images of the N sub-images partially overlap, and so that the first sub-image of the N sub-images partially overlaps with the Nth sub-image. The controller copies an image of a first edge area of a first edge of an original image to a second edge of the original image opposite the first edge to produce an extended image corresponding to the overlapping area of the sub-images. The controller slices the adjusted image containing the original image and the extended image to produce the N image data.

Description

Display system for displaying surround view images and operation method thereof

The present invention relates to a display system, in particular to a display system for displaying a surround view image and an operation method thereof.

At this stage, the surround image can be formed by the fusion method of band stitching. Such a surround view image display system needs to establish a panoramic coordinate system, so a plurality of projectors are usually connected in a wired or wireless manner, and a splicing system is used to generate a coordinate system corresponding to the panoramic image information of each projector. The coordinate system corresponding to the panoramic image information can be calculated by the system after capturing images with multiple cameras. Generally speaking, the beginning and end of the image are cut by the side-by-side cutting method. However, this head-to-tail splicing method often causes the pictures at the splicing point to be unable to be completely connected due to factors such as the relative position deviation of the projector during use. Therefore, there may be a splicing gap of no image screen, which affects the viewing quality of the user.

The "prior art" paragraph is only used to help understand the present disclosure, so the content disclosed in the "prior art" paragraph may contain some that do not constitute the prior art known to those with ordinary skill in the art. The content disclosed in the "prior art" paragraph does not represent the content or the problem to be solved by one or more embodiments of the present invention, and has been known or recognized by those with ordinary knowledge in the technical field before the application of the present invention.

The present invention provides a display system for displaying a surround view image and an operation method thereof, so as to provide a surround view image without splicing gaps.

Other objects and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

To achieve one or part or all of the above purposes or other purposes, an embodiment of the present invention provides a display system for displaying a surround view image, including N projectors and a controller. The N projectors respectively project N sub-images according to the N image data, so that the N sub-images are serially connected to form a surrounding scene image, wherein N is a positive integer greater than 1. Each sub-image has a sub-image overlapping area, so that two adjacent sub-images of the N sub-images partially overlap, and a first sub-image and an N-th sub-image of the N sub-images partially overlap. The controller receives the original image. The controller copies the first edge area image of the first edge of the original image to the second edge of the original image opposite to the first edge to generate an extended image corresponding to the overlapping area of the sub-images. The controller divides the adjusted image including the original image and the extended image to generate the N image data. The controller transmits the N image data to the N projectors respectively, wherein each image data has overlapping area image data corresponding to the overlapping area of the sub-images.

According to an embodiment, in the above-mentioned display system for displaying the surround view image, the controller is further configured to adjust the brightness information of the image data in the overlapping area, so that the brightness of each sub-image in the corresponding sub-image overlapping area is toward the edge of each sub-image decreasing direction.

According to an embodiment, in the above-mentioned display system for displaying a surround view image, a sub-image overlapping area of each sub-image occupies 20% of each sub-image.

According to an embodiment, the above-mentioned display system for displaying a surround view image further includes: N cameras, which are respectively set corresponding to the N projectors, and are used for shooting according to the projection directions toward the corresponding projectors, so as to generate N cameras. Capture images, wherein each captured image includes sub-images projected by the corresponding projectors.

According to an embodiment, in the above-mentioned display system for displaying the surround view image, the controller is further configured to: in a display stage, divide the adjusted image according to the overlapping range information of a sub-image to generate N image data; and in a display stage In the initialization stage, by causing the N projectors to project N test images and the N cameras to shoot, the sub-image overlapping range information is obtained by analyzing the N captured images.

According to an embodiment, in the above-mentioned display system for displaying the surround image, the edge region of each test image has at least one test pattern.

According to an embodiment, in the above-mentioned display system for displaying surround images, each test image has an array of grid points.

According to an embodiment, in the above-mentioned display system for displaying the surround image, the controller is further configured to perform a distortion correction on each captured image, wherein the overlapping area of the sub-images does not include a black image area generated by performing the distortion correction.

To achieve one or part or all of the above objectives or other objectives, an embodiment of the present invention provides an operation method of a display system for displaying a surround view image. The display device includes N projectors and a controller. The operation method includes: receiving an original image by the controller, and then copying, by the controller, a first edge region image of a first edge of the original image to a second edge of the original image relative to the first edge to generate an extended image; splitting the adjusted image including the original image and the extended image to generate N image data; the controller transmits the N image data to the N projectors respectively; and the N projectors respectively according to the N image data N sub-images are projected. The N sub-images are serially connected to form a surround image. Each sub-image has a sub-image overlapping area, so that two adjacent sub-images of the N sub-images partially overlap, and a first sub-image and an N-th sub-image of the N sub-images partially overlap. The extended image corresponds to the sub-image overlapping area, and each image data has overlapping area image data corresponding to the sub-image overlapping area.

According to an embodiment, the operation method of the display system for displaying the surround view image further includes: adjusting, by the controller, the brightness information of the image data of the overlapping area, so that the brightness of each of the sub-images in the corresponding overlapping area of the sub-image is directed toward The edge direction of each of the sub-images decreases.

According to an embodiment, in the operation method of the display system for displaying the surround image, a sub-image overlapping area of each sub-image occupies 20% of each sub-image.

According to an embodiment, in the above-mentioned operation method of a display system for displaying a surround view image, the display device further includes N cameras arranged corresponding to the N projectors respectively, and the operation method further includes: the N cameras Shooting is performed in the projection direction of the corresponding projector to generate N captured images, wherein each of the captured images includes the sub-images projected by the corresponding projectors.

According to an embodiment, the operation method of the above-mentioned display system for displaying a surround view image further includes: in a display stage, the controller divides the adjusted image according to a sub-image overlapping range information to generate N image data; In an initialization stage, the controller obtains sub-image overlap range information by analyzing the N captured images by causing the N projectors to project N test images and the N cameras to shoot.

According to an embodiment, in the operation method of the display system for displaying the surround image, the edge region of each test image has at least one test pattern.

According to an embodiment, in the above-mentioned operation method of a display system for displaying a surround view image, each test image has an array of grid points.

According to an embodiment, the operation method of the above-mentioned display system for displaying surround images further includes: performing, by the controller, a distortion correction on each captured image, wherein the overlapping area of the sub-images does not include a black generated by performing the distortion correction. screen area.

Based on the above, the embodiments of the present invention have at least one of the following advantages or effects. In the present invention, the controller receives the original image, and copies the first edge region image of the first edge of the original image to the second edge of the original image opposite to the first edge to generate the extended image. Then, the adjusted image including the original image and the extended image is segmented by the controller to generate N image data. The controller transmits the N image data to the N projectors respectively, so that two adjacent sub-images of the N sub-images partially overlap, and the first sub-image and the N-th sub-image of the N sub-images partially overlap. In this way, the problem that the images cannot be completely connected at the splicing place due to factors such as the relative position shift of the projectors can be avoided, resulting in a splicing gap without an image image. Moreover, the present invention can further improve the viewing quality of the user.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following specific embodiments are given and described in detail with the accompanying drawings as follows.

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or rear, etc., are only for referring to the directions of the attached drawings. Accordingly, the directional terms used are illustrative and not limiting of the present invention.

FIG. 1 is a schematic block diagram of a display system for displaying a surround image according to an embodiment of the present invention. Referring to FIG. 1 , the display system 100 includes N projectors 120_1 , 120_2 . . . 120_N and a controller 110 . The controller 110 is coupled to the N projectors 120_1 , 120_2 . . . 120_N. N is a positive integer greater than 1.

FIG. 2 is a schematic diagram of an application scenario of a display system for displaying a surround view image according to an embodiment of the present invention. FIG. 3 is a schematic diagram of a projected image of a display system for displaying a surround view image according to an embodiment of the present invention. See also Figures 1 through 3. As shown in FIG. 2 , the N projectors 120_1 , 120_2 . . . 120_N in the display system 100 for displaying the surround view image are arranged in a ring shape and are connected to each other in a wired or wireless manner. The N projectors 120_1 , 120_2 . . . 120_N are respectively coupled to the controller 110 . The N projectors 120_1 , 120_2 . . . 120_N in the display system 100 for displaying the surround view image respectively project N sub-images to the annular projection screen 210 according to the _N image data IMD ₁ ˜IMD N, so that the N sub-images are serially connected in series and paralleled. A surrounding image is formed on the annular projection screen 210 .

Please refer to FIG. 1 and FIG. 3 , when the N projectors 120_1 , 120_2 . . . 120_N in the display system 100 for displaying the surrounding image respectively project N sub-images to the annular projection screen 210 according to the _N image data IMD ₁ ˜IMD N , each sub-image 310_1, 310_2...310_N has sub-image overlapping regions 320_0, 320_1...320_N. Taking the sub-image 310_2 as an example, the sub-image 310_2 has sub-image overlapping areas 320_1 and 320_2, and the sub-image overlapping areas 320_1 and 320_2 overlap with the partial images of the sub-images 310_1 and 310_3, respectively. Two adjacent sub-images in the sub-images 310_2, 310_3 . . . 310_(N-1) partially overlap. The sub-image 310_N not only partially overlaps the sub-image 310_(N-1) in the sub-image overlapping area 320_N-1, but also partially overlaps the sub-image 310_1 in the sub-image overlapping area 320_N. During actual projection, the sub-image overlapping areas 320_0 and 320_N have the same image data.

FIG. 4 is a schematic diagram of adjusting the original image by the controller of the display system for displaying the surround view image according to an embodiment of the present invention. Referring to FIG. 1 and FIG. 4 , before the N projectors 120_1 , 120_2 . . . 120_N in the display system 100 for displaying the surround image are projected, the controller 110 receives the original image 410 to be projected. The controller 110 copies the first edge region image 420 of the first edge 440 of the original image 410 to the second edge 450 of the original image 410 opposite to the first edge 440 to generate a corresponding sub-image overlapping region (as shown in FIG. 3 ). The extended image 430 of the sub-image overlapping area 320_N). The controller 110 divides the adjusted image including the original image 410 and the extended image 430 to generate N image data IMD ₁ -IMD _N . The aforementioned N image data IMD ₁ ˜IMD _N are respectively transmitted to the N projectors 120_1 , 120_2 . . . 120_N. Wherein, each image data has overlapping area image data corresponding to the sub-image overlapping areas 320_0, 320_1 . . . 320_N.

In an embodiment of the present invention, the controller 110 is further configured to adjust the brightness information of the image data in the overlapping area, so that the brightness of each sub-image 310_1, 310_2... 310_N in the corresponding sub-image overlapping area 320_0, 320_1... The edge directions of the sub-images are decreased, so that the brightness of the overlapping regions 320_0, 320_1 . . . 320_N of the sub-images is consistent with the brightness of the remaining non-overlapping parts during projection. In an embodiment of the present invention, the sub-image overlapping area of each sub-image 310_1 , 310_2 . . . 310_N may account for 20% of each sub-image.

FIG. 5 is a schematic block diagram of a display system for displaying a surround view image according to another embodiment of the present invention. Please refer to FIG. 5 . The display system 500 shown in FIG. 5 includes N cameras 510_1 , 510_2 . . . 510_N in addition to N projectors 120_1 , 120_2 . The N cameras 510_1 , 510_2 . . . 510_N are respectively arranged corresponding to the N projectors 120_1 , 120_2 . . . 120_N. Wherein, the N projectors 120_1, 120_2 . . . 120_N are connected to each other in a wired or wireless manner. The N projectors 120_1 , 120_2 . . . 120_N and the N cameras 510_1 , 510_2 . . . 510_N are respectively coupled to the controller 110 . The N cameras 510_1 , 510_2 . . . 510_N are used for shooting according to the projection directions toward the corresponding projectors to generate N captured images CIM ₁ ˜CIM _N , wherein each captured image CIM ₁ ˜CIM _N includes a corresponding The sub-images 310_1, 310_2, . . . 310_N projected by each projector.

In the initialization stage of the display system 500, the controller 110 can control the N projectors 120_1, 120_2 . . . 120_N to project N test images. The controller 110 also controls N cameras 510_1 , 510_2 . . . 510_N to capture N test images. By capturing N captured images CIM ₁ ˜CIM _N including N test images respectively, the overlapping regions of the projection ranges of the N projectors 120_1 , 120_2 . . . 120_N can be determined to obtain sub-image overlapping range information. The controller 110 is used for dividing the adjusted image according to the sub-image overlapping range information to generate N image data IMD ₁ ˜IMD _N , and transmitting the N image data IMD ₁ ˜IMD _N to the N projectors 120_1 and 120_2 respectively. ...120_N to cast.

Taking four projectors (that is, N equals 4) as an example, the controller 110 can control the four projectors 120_1, 120_2 . . . 120_4 to project four array grid images respectively (assuming that the pixels of the projected images are all 1920*1080). The controller 110 also controls the four cameras 510_1 , 510_2 . . . 510_4 to shoot the four array grid images. The controller 110 can determine the overlapping area of the projection ranges of the four projectors 120_1, 120_2... The ratio of the overlapping area of the sub-images to the sub-image. The aforementioned ratio is, for example, 20%, that is, the overlapping area 320_2 of the sub-image 310_2 and the sub-image 310_3 occupies 20% of the sub-image 310_2 . The overlap ratio of the remaining sub-images can be deduced by analogy. In this embodiment, the ratio of the overlapping area of the sub-images projected by the two projectors to the sub-image is 20%, that is to say, the pixels actually occupied by the overlapping area are 384 (1920*20%).

The controller 110 first calculates the number of pixels to be cut out for the surround image to be projected. It can be known through calculation that the first projector 120_1 is to project images of pixels 1 to 1920 . Considering the 20% overlap, the second projector 120_2 needs to project images with pixels 1536 to 3456, and the third projector 120_3 needs to project images with pixels 3072 to 4992. Since the fourth projector 120_4 needs to project 20% of the screen projected by the first projector 120_1, the remaining pixels (1920-384) need to project the remaining image, that is, the range of the remaining image is between pixels 4608-6144. between. Therefore, the picture of the surround image to be projected needs to be cut to be 6144*1080 pixels, thereby projecting the surround image. The controller 110 copies the images of pixels 1 to 384 on the first edge 440 (ie, the first edge area image 420 ) in the cut surround image to be projected to the second edge 450 to generate an extension corresponding to the overlapping area of the sub-images Image 430. After that, the controller 110 uses the cut images of pixels 1-1920, 1536-3456, 3072-4992, 4608-6144, and 1-384 of the surrounding image to be projected as the image data _{IMD1 -} IMD3, respectively. transmitted to the projectors 120_1, 120_2, 120_3, 120_4.

Although in the above example, the projectors 120_1 , 120_2 . . . 120_4 project an array grid image as a test image. However, the projectors 120_1 , 120_2 . . . 120_4 can also project other images as test images. As long as the edge region of the test image has at least one test pattern, the controller 110 can determine the number of the N projectors 120_1 , 120_2 . . . 120_N by capturing the captured images CIM ₁ ˜CIM _N respectively including N test images. The projection ranges overlap with each other, so as to obtain the overlapping range information of the sub-images.

Here, it should be particularly noted that when N cameras 510_1 , 510_2 . . . 510_N capture N test images, there may be image distortion. Therefore, the controller 110 can also be used to perform warping correction on each of the captured images CIM ₁ ˜CIM _N , but the sub-image overlapping areas 320_0 , 320_1 . . . 320_N do not include the black image area generated by performing the warping correction.

FIG. 6 is a schematic diagram illustrating an operation flow of a display system for displaying a surround view image according to an embodiment of the present invention. 1-6, in step S610, the controller 110 receives the original image 410, and copies the first edge region image 420 of the first edge 440 of the original image 410 to the first edge 440 of the original image 410 relative to the first edge 440 of the second edge 450 to produce an extended image. In step S620 , the adjusted image including the original image 410 and the extended image is segmented by the controller 110 to generate N image data IMD ₁ ˜IMD _N , and the N image data IMD ₁ ˜IMD _N are respectively transmitted to N projectors 120_1 to 120_N. where N is a positive integer greater than 1. In step S630, the N projectors 120_1-120_N respectively project N sub-images according to the N image data _IMD1 -IMD _N , wherein the N sub-images are serially connected in sequence to form a surround image, and each sub-image has a sub-image. The image overlapping area is used to partially overlap two adjacent sub-images among the N sub-images. In step S640, the first sub-image and the N-th sub-image among the N sub-images are partially overlapped. The extended image corresponds to the sub-image overlapping area, and each image data has overlapping area image data corresponding to the sub-image overlapping area.

In an embodiment of the present invention, the aforementioned operation method of the display system 100 for displaying a surround view image further includes adjusting, by the controller 110, the brightness information of the image data in the overlapping area, so that each sub-image 310_1, 310_2 . . . 310_N is in the corresponding sub-image The brightness of the image overlapping regions 320_0, 320_1 . . . 320_N decreases toward the edge direction of each sub-image.

In an embodiment of the present invention, the sub-image overlapping areas 320_0, 320_1, . . . 320_N of the sub-images 310_1, 310_2, . 20%.

FIG. 7 is a schematic diagram illustrating an operation flow of a display system for displaying a surround view image in an initialization stage according to an embodiment of the present invention. Referring to FIGS. 1 to 7 , in step S710 , the display system 500 provides N cameras 510_1 , 510_2 . . . 510_N corresponding to the N projectors 120_1 , 120_2 . . . 120_N, respectively. In step S720 , the N cameras 510_1 , 510_2 . . . 510_N are respectively photographed according to the projection directions toward the corresponding projectors to generate N captured images, wherein each captured image includes images projected by the corresponding projectors. subimage.

In an embodiment of the present invention, the above-mentioned operation method of the display system 500 for displaying the surround view image in the initialization stage further includes that the controller 110 divides the adjusted image according to the sub-image overlapping range information in the display stage to generate N image data. The operating method further includes, by the controller 110 in an initialization stage, by causing the N projectors 120_1, 120_2...120_N to project N test images and the N cameras 510_1, 510_2...510_N to capture N captured images by analyzing to obtain sub-image overlap range information.

In an embodiment of the present invention, the edge region of each test image in the operation method of the display system 500 for displaying the surround image in the initialization stage has at least one test pattern.

In an embodiment of the present invention, each test image in the operation method in the initialization phase of the display system 500 for displaying the surround view image has an array of grid points.

In an embodiment of the present invention, the above-mentioned operation method of the display system 500 for displaying the surround view image in the initialization stage further includes performing deformation correction on each captured image by the controller 110, wherein the sub-image overlapping areas 320_0, 320_1 . . . 320_N do not include the Performs warping correction on the resulting black screen area.

To sum up, the embodiments of the present invention have at least one of the following advantages or effects. In the present invention, the controller copies the first edge area image of the first edge of the original image to the second edge of the original image opposite to the first edge to generate an extended image, so that the first sub-image and the first sub-image in the N sub-images can be The N subimages partially overlap. In this way, the problem that the images cannot be completely connected at the splicing place due to factors such as the relative position shift of the projectors can be avoided, resulting in a splicing gap without an image image. Moreover, the present invention can further improve the viewing quality of the user.

However, the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the description of the invention, All still fall within the scope of the patent of the present invention. In addition, it is not necessary for any embodiment of the present invention or the claimed scope of the present invention to achieve all of the objects or advantages or features disclosed in the present invention. In addition, the abstract section and the title are only used to aid the search of patent documents and are not intended to limit the scope of the present invention. In addition, terms such as "first" and "second" mentioned in this specification or the scope of the patent application are only used to name the elements or to distinguish different embodiments or scopes, and are not used to limit the number of elements. upper or lower limit.

100, 500: Display system for displaying surround view images

110: Controller

120_1, 120_2…120_N: Projector

210: Ring projection screen

310_1, 310_2…310_N: Subimages

320_0, 320_1…320_N: Sub-image overlapping area

410: Original image

420: Image of the first edge area

430: Extended Image

440: First Edge

450: Second Edge

510_1, 510_2…510_N: Camera

S610~S640, S710~S720: Steps

IMD ₁ ~IMD _N : Image data

CIM ₁ ~CIM _N : Capture images

FIG. 1 is a schematic block diagram of a display system for displaying a surround image according to an embodiment of the present invention. FIG. 2 is a schematic diagram of an application scenario of a display system for displaying a surround view image according to an embodiment of the present invention. FIG. 3 is a schematic diagram of a projected image of a display system for displaying a surround view image according to an embodiment of the present invention. FIG. 4 is a schematic diagram of adjusting the original image by the controller of the display system for displaying the surround view image according to an embodiment of the present invention. FIG. 5 is a schematic block diagram of a display system for displaying a surround view image according to another embodiment of the present invention. FIG. 6 is a schematic diagram illustrating an operation flow of a display system for displaying a surround view image according to an embodiment of the present invention. FIG. 7 is a schematic diagram illustrating an operation flow of a display system for displaying a surround view image in an initialization stage according to an embodiment of the present invention.

100: Display system

110: Controller

120_1~120_N: Projector

IMD ₁ ~IMD _N : Image data

Claims (16)

A display system for displaying a surround image, comprising: N projectors and a controller; wherein the N projectors respectively project N sub-images according to N image data, wherein the N sub-images are serially connected and formed A panoramic image, and each of the sub-images has a sub-image overlapping area, so that two adjacent sub-images in the N sub-images partially overlap, and a first sub-image and an N-th sub-image in the N sub-images The images are partially overlapped; and the controller receives an original image, the original image has a first edge and a second edge opposite, and copies a first edge region image of the first edge of the original image to the original image to generate an extended image corresponding to the overlapping area of the sub-image, and the first edge area image and the extended image have the same image data, the original image and the extended image extending from the second edge The image forms an adjusted image, the controller divides the adjusted image to generate the N image data, and the N image data are respectively transmitted to the N projectors; An overlapping area image data of the sub-image overlapping area, and N is a positive integer greater than 1. The display system for displaying a surround view image as claimed in claim 1, wherein the controller is further configured to adjust the brightness information of the image data in the overlapping area, so that the brightness of each of the sub-images in the corresponding overlapping area of the sub-image is directed toward each of the sub-images. The edge direction of the sub-image decreases. The display system for displaying a surround view image according to claim 1, wherein the overlapping area of each of the sub-images of each of the sub-images accounts for 20% of each of the sub-images. The display system for displaying a surround view image as claimed in claim 1, further comprising: N cameras, which are respectively arranged corresponding to the N projectors, and are used for shooting according to the projection directions toward the corresponding projectors respectively. , so as to generate N captured images, wherein each captured image includes the sub-image corresponding to each of the projectors. The display system for displaying a surround view image as claimed in claim 4, wherein the controller is further configured to: in a display stage, divide the adjusted image according to the information of a sub-image overlapping range to generate the N image data; And in an initialization stage, by causing the N projectors to project N test images and causing the N cameras to shoot, to obtain the sub-image overlap range information by analyzing the N captured images. The display system for displaying a surround view image as claimed in claim 5, wherein the edge region of each test image has at least one test pattern. The display system for displaying a surround view image as claimed in claim 5, wherein each of the test images has an array of grid points. The display system for displaying a surround view image as claimed in claim 5, wherein the controller is further configured to perform a deformation correction on each of the captured images, wherein the sub-image overlapping area does not include a deformation correction generated by performing the deformation correction. Black screen area. An operation method of a display system for displaying a surround view image, wherein the display device includes N projectors and a controller, the operation method includes: receiving an original image by the controller, the original image having an opposite first edge and a second edge, and copy a first edge area image of the first edge of the original image to the second edge of the original image to generate an extended image; and the first edge area image and the extended image Having the same image data, the original image and the extended image extending from the second edge form an adjusted image, the adjusted image is divided by the controller to generate N image data, the N images The data are respectively sent to the N projectors; and the N projectors respectively project N sub-images according to the N image data, wherein the N sub-images are serially connected in sequence to form a surround image, and each of the sub-images There is a sub-image overlapping area, so that two adjacent sub-images in the N sub-images partially overlap, and a first sub-image and an N-th sub-image in the N sub-images partially overlap; wherein the extending The image corresponds to the sub-image overlapping area, each of the image data has an overlapping area image data corresponding to the sub-image overlapping area, and N is a positive integer greater than 1. The operation method of the display system for displaying the surround view image according to claim 9, further comprising: adjusting, by the controller, the brightness information of the image data of the overlapping area, so that each of the sub-images is in the corresponding overlapping area of the sub-image. The brightness decreases toward the edge of each sub-image. The operation method of the display system for displaying the surround image according to claim 9, wherein the overlapping area of the sub-images of each of the sub-images accounts for 20% of each of the sub-images. The operation method of a display system for displaying a surround view image according to claim 9, wherein the display device further comprises N cameras that are respectively set corresponding to the N projectors, and the operation method further comprises: using the N cameras The cameras respectively shoot according to the projection direction toward the corresponding projector to generate N captured images, wherein each captured image includes the sub-image projected by the corresponding projector. The operation method of the display system for displaying the surround image as claimed in claim 11, further comprising: dividing the adjusted image by the controller according to a sub-image overlapping range information in a display stage to generate the N image data ; and the controller obtains the sub-image overlapping range information by analyzing the N captured images by causing the N projectors to project N test images and causing the N cameras to shoot in an initialization phase. The operation method of a display system for displaying a surround view image as claimed in claim 12, wherein each edge region of the test image has at least one test pattern. The operation method of a display system for displaying a surround view image as claimed in claim 12, wherein each of the test images has an array of grid points. The operation method of the display system for displaying the surround view image according to claim 12, further comprising: A distortion correction is also performed on each of the captured images by the controller, wherein the overlapping area of the sub-images does not include a black image area generated by performing the distortion correction.

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