Projection apparatus and operating method thereof

Abstract

A projection apparatus includes: a projector; at least one memory storing one or more instructions; and at least one processor, where the one or more instructions, when executed by the at least one processor, cause the projection device to: obtain a first image; generating a blurred image based on the first image; obtaining a background image by performing image processing on an edge region of the blurred image to present a vignetting effect on the edge region; and controlling the projector to project a second image in which the background image and the first image are combined.

Description

Technical Field

[0001] This disclosure relates to a projection device and its operating method. Background Technology

[0002] Projection devices project images onto a screen or space. A projection device can be a projector that includes the projected image, a device for providing virtual reality (VR), augmented reality (AR), or mixed reality (MR), etc. Projection devices are used in a variety of fields; for example, they can be used for lectures or presentations in classrooms or conference rooms, and can be used to project movies onto screens in theaters. Devices used to provide VR, AR, or MR can provide an experience as if the user is watching a movie in a theater by displaying images on a screen (monitor) located near the user's eyes while the user wears the device.

[0003] Home theaters can be configured using devices that include projectors, and the use of large screens for viewing image content (e.g., watching movies or playing games) has increased. When viewing image content using devices that include projectors, not only are the high resolution of the image content and the projection performance useful, but the viewing environment is also beneficial.

[0004] When viewing image content using a device that includes a projector or a device used to provide VR, AR, or MR, the boundary between the area on which the image content is projected (the screen) and the rest of the area is clearly visible. Therefore, the user can perceive a disconnect between the space of the projected image content and the user's actual physical space. Summary of the Invention

[0005] Solution to the problem

[0006] According to one aspect of this disclosure, a projection device may include a projector, at least one memory storing one or more instructions, and at least one processor.

[0007] The one or more instructions, when executed by the at least one processor, cause the projection device to acquire a first image.

[0008] When executed by at least one processor, one or more instructions can cause the projection device to generate a blurred image based on a first image.

[0009] When executed by at least one processor, one or more instructions can enable a projection device to obtain a background image by performing image processing on the edge regions of a blurred image to produce a vignetting effect on the edge regions.

[0010] When executed by at least one processor, one or more instructions can cause the projection device to control the projector to project a second image in which a background image and a first image are combined.

[0011] According to one aspect of this disclosure, a method of operating a projection device may include obtaining a first image.

[0012] This method may include generating a blurred image based on a first image.

[0013] The method may include obtaining a background image by performing image processing on the edge regions of a blurred image to produce a vignetting effect on the edge regions.

[0014] The operation method may include projecting a second image in which a background image and a first image are combined. Attached Figure Description

[0015] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a diagram illustrating various projection environments according to embodiments of the present disclosure;

[0017] Figure 2 This is a flowchart of an operation method of a projection device according to an embodiment of the present disclosure;

[0018] Figure 3 This is a flowchart of a method for generating an image including a vignetting effect using a projection device according to an embodiment of the present disclosure.

[0019] Figure 4 This is a reference diagram illustrating a method for generating an image including a vignetting effect using a projection device according to an embodiment of the present disclosure;

[0020] Figure 5 This is a diagram illustrating examples of a projection device according to embodiments of the present disclosure performing image processing by applying different vignette ratios;

[0021] Figure 6 This is a flowchart of a method for generating an image including a vignetting effect using a projection device according to an embodiment of the present disclosure.

[0022] Figure 7 This is a reference diagram illustrating a method for generating an image including a vignetting effect using a projection device according to an embodiment of the present disclosure;

[0023] Figure 8 This is a flowchart of a method for generating an image including a vignetting effect using a projection device according to an embodiment of the present disclosure;

[0024] Figure 9 This is a diagram illustrating the operation of setting a background image using a projection device according to embodiments of the present disclosure;

[0025] Figure 10 This is a diagram illustrating the operation of a projection device according to embodiments of the present disclosure to generate a background original image based on an image to be projected;

[0026] Figure 11 This is a diagram illustrating the operation of a projection device generating a background image according to embodiments of the present disclosure;

[0027] Figure 12 This is a diagram illustrating the operation of a projection device generating a background image according to embodiments of the present disclosure;

[0028] Figure 13 This is a block diagram illustrating the configuration of a projection device according to an embodiment of the present disclosure;

[0029] Figure 14 This is a diagram illustrating a display device for displaying an image including a vignetting effect according to an embodiment of the present disclosure; and

[0030] Figure 15 This is a block diagram illustrating the configuration of a display device according to an embodiment of the present disclosure. Detailed Implementation

[0031] This disclosure can be modified in various ways and has one or more embodiments. Exemplary embodiments of this disclosure will be shown in the accompanying drawings and described in detail in the specific implementation. However, it should be understood that this disclosure is not limited to the particular embodiments, but includes all modifications, equivalents, and alternatives to the exemplary embodiments of this disclosure. Throughout the drawings, similar components will be indicated by similar reference numerals.

[0032] Throughout this disclosure, the expression "at least one of a, b or c" indicates only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b and c.

[0033] The terminology used in this disclosure will be briefly defined, and the disclosure will be described in detail.

[0034] All terms used herein, including descriptive or technical terms, shall be interpreted as having meanings obvious to a person skilled in the art. However, these terms may have different meanings depending on the intent of a person skilled in the art, precedent, or the emergence of new technologies. Furthermore, the applicant may arbitrarily choose a number of terms, and in such cases, the meanings of the chosen terms will be described in detail in the detailed description of this disclosure. Therefore, the terms used herein must be defined based on their meanings and the description throughout this disclosure.

[0035] When a component "comprises" or "includes" an element, the component may also include other elements, without excluding them, unless there is a specific description to the contrary. Additionally, terms such as "unit," "device," and "module" described in this disclosure denote a unit that performs at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

[0036] Embodiments of this disclosure will now be described in detail with reference to the accompanying drawings to enable those skilled in the art to readily implement this disclosure. However, this disclosure can be implemented in various different forms and is not limited to the embodiments described herein. Furthermore, in the drawings, portions irrelevant to the description have been omitted for clarity, and the same reference numerals denote the same elements throughout the disclosure.

[0037] In this disclosure, the term "user" according to embodiments of this disclosure means a person who controls the system, function, or operation, and may include a developer, manager, or installation engineer.

[0038] Furthermore, in this disclosure, an “image” or “picture” according to embodiments of this disclosure may refer to a still image, a moving image including a plurality of consecutive still images (or frames), or a video.

[0039] Figure 1 This is a diagram illustrating various projection environments according to embodiments of the present disclosure.

[0040] The projection device 100 according to embodiments of the present disclosure can project image content onto a screen. Here, the screen on which the image content is projected can be configured in any of a variety of forms. When the projection device 100 is a device that includes a projector, the screen can represent the physical space on which the image content is projected. For example, the screen can include a wall or a screen made of fabric.

[0041] When the projection device 100 is used to provide virtual reality (VR), augmented reality (AR), or mixed reality (MR), the screen can represent a display included in the projection device 100. For example, the device for providing VR, AR, or MR can be implemented as a glasses-type wearable device that includes a head-mounted display (HMD) that can be mounted on the head and can include a display. The display can be a transparent display or an opaque display. The device for providing VR, AR, or MR can output (display) image content to the display.

[0042] In the following description, for ease of description, the case in which the projection device 100 is a device that includes a projector is described as an example, but the same disclosure may be applied even when the projection device 100 is a device for providing VR, AR or MR.

[0043] refer to Figure 1 When the projection device 100 according to an embodiment of the present disclosure projects image content onto a screen, the edges of the screen or the edges 10 of the projected image content can be clearly distinguished from the space of the unprojected image content. Therefore, the viewer (user) viewing the projected image content can perceive a disconnect between the image content space and the space where the user exists, and thus may feel as if the viewing experience is spatially disrupted.

[0044] According to embodiments of the present disclosure, the projection device 100 can provide a vignetting effect 20 at the edge areas of the projected image content.

[0045] Vignetting can refer to dark shadows or blurriness that appear at the edges of a photograph or image. This phenomenon occurs due to the camera's optics or lens system, and happens when less light reaches the outer parts of the image than the center.

[0046] The projection device 100 according to an embodiment of the present disclosure can provide a vignetting effect 20 by generating shadows (dark areas) in the edge regions of the projected image content. When the vignetting effect 20 is presented in the edge regions of the projected image content, the disconnect between the space where the image content is displayed and the space where the viewer exists can be reduced. Therefore, the viewer can further focus on viewing the image content and have a viewing experience as if the image content space and the real space are connected to each other.

[0047] The operation of the projection device 100 according to an embodiment of the present disclosure to process and project image content to present a vignetting effect in the edge areas of the image content will be described in detail below with reference to the accompanying drawings.

[0048] Figure 2 This is a flowchart of the operation method of the projection device 100 according to an embodiment of the present disclosure.

[0049] refer to Figure 2 According to an embodiment of the present disclosure, the projection device 100 can obtain the image to be projected (S210).

[0050] The images according to embodiments of this disclosure may be images pre-stored in the projection device 100 or images received from an external device. However, the images are not limited thereto. Furthermore, the images according to embodiments of this disclosure may be images to which a video processor has performed various types of image processing (such as decoding, scaling, noise filtering, frame rate conversion, resolution conversion, etc.).

[0051] According to an embodiment of the present disclosure, the projection device 100 can generate a blurred image based on the obtained image (S220).

[0052] For example, the projection device 100 can generate a blurred image by performing blurring processing on the acquired image. Blur or blurring processing can be performed to blur the image by reducing its sharpness and providing a soft blur effect.

[0053] The projection device 100 can perform blurring processing on an image by filtering. The projection device 100 can perform filtering on the image by using various filters. For example, the projection device 100 can perform blurring processing (Gaussian blur) by using a Gaussian filter, blurring processing (mean blur) by using a mean filter, and blurring processing (median blur) by using a median filter. Such filters are merely examples, and the projection device 100 according to embodiments of this disclosure can perform blurring processing by using various filters.

[0054] Alternatively or additionally, the projection device 100 may obtain a background original image based on the image to be projected. For example, the projection device 100 may analyze the image to be projected to obtain information about the atmosphere, subject, etc., indicated in the image, and generate a background original image based on the obtained information. Alternatively or additionally, the projection device 100 may receive the background original image from an external device. The projection device 100 may generate a blurred image by performing blurring processing on the background original image.

[0055] Alternatively or additionally, the projection device 100 may generate a blurred image by performing blurring processing on another image associated with the image to be projected. For example, the other image associated with the image to be projected may include another image stored in the same area as the image to be projected, another image classified into the same group as the image to be projected according to a specific criterion, another image having the same or similar atmosphere as the image to be projected, and another image indicating the same or similar subject as the image to be projected. However, the other image associated with the image to be projected is not limited to these.

[0056] According to an embodiment of the present disclosure, the projection device 100 can generate a background image by performing image processing to produce a vignetting effect in the edge region of a blurred image (operation S230).

[0057] According to an embodiment of this disclosure, the projection device 100 can produce a vignetting effect by generating shadows (dark areas) in the edge regions of a blurred image. Here, the projection device 100 can apply different vignetting ratios depending on the position of the edge regions of the blurred image. The vignetting ratio is a value indicating the degree of vignetting, and when this value increases, the dark area increases, and when this value decreases, the dark area decreases. (Refer to...) Figure 5 This will be described in detail.

[0058] According to embodiments of the present disclosure, the projection device 100 can apply a vignetting ratio to a blurred image at different times. Therefore, the vignetting effect presented in the edge regions of the background image can vary over time.

[0059] According to an embodiment of the present disclosure, the projection device 100 can combine the image to be projected with a background image (operation S240).

[0060] For example, the projection device 100 can generate a final image by combining the image to be projected with a background image generated in operation S230. The projection device 100 can generate a final image by scaling the background image or the image to be projected based on the screen size. Here, the final image may be an image that exhibits a vignetting effect in the peripheral region of the image to be projected.

[0061] The projection device 100 according to an embodiment of the present disclosure can project the final image onto a screen or space (operation S250).

[0062] By projecting a final image that creates a vignetting effect in the outer region of the image to be projected, users or viewers can further focus on the image content and have a viewing experience as if the image content space and the real space are connected to each other.

[0063] Figure 3 This is a flowchart of a method for generating an image including a vignetting effect using a projection device 100 according to an embodiment of the present disclosure, and Figure 4 It is used to describe Figure 3 Reference image.

[0064] refer to Figure 3 and Figure 4 According to an embodiment of the present disclosure, the projection device 100 can obtain the image 410 to be projected (operation S310).

[0065] According to an embodiment of this disclosure, the projection device 100 can determine whether the image 410 includes a letterbox (operation S320), and if a letterbox is included, remove the letterbox from the image 410 (operation S330). The letterbox may be a black bar displayed on the top, bottom, left, or right side of the image.

[0066] According to an embodiment of the present disclosure, the projection device 100 may add black fill 420 to the top, bottom, left and right areas of an image 410 that does not include a mailbox or from which a mailbox has been removed (operation S340).

[0067] Padding refers to expanding the edges of an image by filling the area around it with additional values. Black padding indicates that the pixel value being filled is 0 and can be referred to as zero padding.

[0068] According to an embodiment of the present disclosure, the projection device 100 can generate a blurred image by performing masking and blurring on the central region of the image 410 (operation S350).

[0069] The projection device 100 can perform blurring processing on the image 410 through filtering. (As mentioned above...) Figure 2 Operation S220 describes the blurring process using a filter in detail, therefore, its detailed description is not provided hereafter.

[0070] During blurring, the masked region 430 obtained by masking the central region of image 410 does not require blurring, thus reducing the overall throughput. The size of the masked region 430 can be adjusted according to the size of image 410.

[0071] exist Figure 3 The blurred image 440 generated in operation S350 may include, according to, the blurry image 440 generated in operation S350. Figure 3 The operation S340 adds a black fill of 420 for a gradient effect.

[0072] According to an embodiment of the present disclosure, the projection device 100 can generate a background image 450 by performing image processing, such that an additional vignetting effect is presented in the edge region of the blurred image 440 (operation S360).

[0073] The projection device 100 can produce a vignetting effect by generating shadows (dark areas) in the edge regions of the blurred image 440. Here, the projection device 100 can apply different vignetting ratios depending on the location of the edge regions. (See reference...) Figure 5 This will be described.

[0074] Figure 5 This is a diagram illustrating an example of a projection device 100 according to an embodiment of the present disclosure performing image processing by applying different vignetting ratios.

[0075] refer to Figure 5 According to embodiments of the present disclosure, the projection device 100 can apply different vignetting ratios based on the positions of the edge regions of the blurred image 510. For example, the projection device 100 can perform image processing by applying functions representing the vignetting ratio based on the positions of the top edge region, bottom edge region, left edge region, and right edge region, respectively. The projection device 100 can perform vignetting by applying a first function 525 to the top edge region 520 of the blurred image 510. Here, the first function 525 can be a function that uses the horizontal position of the top edge region 520 as the x-axis and the vignetting ratio as the y-axis.

[0076] Furthermore, the projection device 100 can perform vignetting by applying a second function 535 to the right edge region 530 of the blurred image 510. Here, the second function 535 can be a function that uses the vertical position of the right edge region 530 as the x-axis and the vignetting ratio as the y-axis.

[0077] Furthermore, the projection device 100 can perform vignetting by applying a third function 545 to the bottom edge region 540 of the blurred image 510. Here, the third function 545 can be a function that uses the horizontal position of the bottom edge region 540 as the x-axis and the vignetting ratio as the y-axis.

[0078] In addition, the projection device 100 can perform vignetting by applying the fourth function 555 to the left edge region 550 of the blurred image 510.

[0079] According to embodiments of this disclosure, the vignetting ratios, represented by the first function 525 to the fourth function 555 respectively, can represent the ratio of dark areas. For example, the ratio of dark areas can be high at locations with a high vignetting ratio (refer to reference numeral 570), and the ratio of dark areas can be low at locations with a low vignetting ratio (refer to reference numeral 560).

[0080] Each of the first function 525 to the fourth function 555 can be a function of the y-value (vignetting ratio) changing over time. Therefore, the vignetting effect of the image to be projected can change over time.

[0081] Return to reference Figure 3 and Figure 4 According to an embodiment of the present disclosure, the projection device 100 can combine the image 410 to be projected with the background image 450 (operation S370).

[0082] The projection device 100 can generate a final image 460 by scaling the background image 450 or the image 410 to be projected based on the screen size. Here, the final image 460 may be an image that presents a vignetting effect in the peripheral area of ​​the edge of the image 410 to be projected.

[0083] The projection device 100 according to embodiments of the present disclosure can project a final image 460, including a vignetting effect, onto a screen or space.

[0084] Figure 6 This is a flowchart of a method for generating an image including a vignetting effect using a projection device 100 according to an embodiment of the present disclosure, and Figure 7 It is used to describe Figure 6 Reference image.

[0085] refer to Figure 6 and Figure 7According to an embodiment of the present disclosure, the projection device 100 can obtain the image 710 to be projected (operation S610).

[0086] According to an embodiment of the present disclosure, the projection device 100 can determine whether the image 710 includes a mailbox (operation S620), and when the mailbox is included, remove the mailbox from the image 710 (operation S630).

[0087] According to an embodiment of the present disclosure, the projection device 100 can generate a blurred image 730 by masking and blurring the middle region 720 of an image 710 that does not include a mailbox or from which a mailbox has been removed (operation S640).

[0088] The projection device 100 can perform blurring processing on the image 710 through filtering. (As mentioned above...) Figure 2 Operation S220 describes the blurring process using a filter in detail, therefore, its detailed description is not provided hereafter.

[0089] During blurring, the masked region 720 obtained by masking the central region of image 710 does not require blurring, thus reducing the overall throughput. The size of the masked region 720 can be adjusted according to the size of image 710.

[0090] According to an embodiment of the present disclosure, the projection device 100 can generate a background image 740 by performing image processing to produce a vignetting effect in the edge region of the blurred image 730 (operation S650).

[0091] The projection device 100 can generate a vignetting effect by creating shadows (dark areas) in the edge regions of the blurred image 730. Here, the projection device 100 can apply different vignetting ratios depending on the location of the edge regions. (This is based on...) Figure 5 This has been described in detail, so redundant descriptions will not be provided.

[0092] According to an embodiment of the present disclosure, the projection device 100 can combine the image 710 to be projected with the background image 740 (operation S660).

[0093] The projection device 100 can generate a final image 750 by scaling the background image 740 or the image 710 to be projected based on the screen size. Here, the final image 750 may be an image that presents a vignetting effect in the peripheral area of ​​the edge of the image 710 to be projected.

[0094] The projection device 100 according to embodiments of the present disclosure can project a final image 750, including a vignetting effect, onto a screen or space.

[0095] Figure 8This is a flowchart of a method for generating an image including a vignetting effect using a projection device 100 according to an embodiment of the present disclosure.

[0096] refer to Figure 8 According to an embodiment of the present disclosure, the projection device 100 can obtain the image to be projected (operation S810).

[0097] According to an embodiment of the present disclosure, the projection device 100 can determine whether the image includes a mailbox (operation S820), and when the mailbox is included, remove the mailbox from the image (operation S830).

[0098] According to an embodiment of the present disclosure, the projection device 100 can generate a first blurred image by performing masking and blurring on the central region of an image that does not include a mailbox or from which a mailbox has been removed (operation S840).

[0099] Projection device 100 can perform blurring processing on the image through filtering. (As mentioned above...) Figure 2 Operation S220 describes the blurring process using a filter in detail, therefore, its detailed description is not provided hereafter.

[0100] During blurring, the masked area obtained by masking the central region of the image does not require blurring, thus reducing overall throughput. The size of the masked area can be adjusted according to the size of the image.

[0101] According to an embodiment of the present disclosure, the projection device 100 can generate a second blurred image by adding black fill to the top, bottom, left and right regions of a first blurred image and performing blurring processing on the first blurred image that has been filled with black fill (operation S850).

[0102] During blurring, the masked area obtained by masking the central region of the image does not require blurring, thus reducing overall throughput. The size of the masked area can be adjusted according to the size of the image.

[0103] The second blurred image generated through blurring may include a vignetting effect due to black filling.

[0104] According to an embodiment of the present disclosure, the projection device 100 can generate a background image by performing image processing to present an additional vignetting effect in the edge region of the second blurred image (operation S860).

[0105] The projection device 100 can produce a vignetting effect by generating shadows (dark areas) in the edge regions of the second blurred image. Here, the projection device 100 can apply different vignetting ratios depending on the location of the edge regions. (This is based on...) Figure 5This has been described in detail, so redundant descriptions will not be provided.

[0106] According to an embodiment of the present disclosure, the projection device 100 can combine the image to be projected with a background image (operation S870).

[0107] The projection device 100 can generate a final image by scaling the background image or the image to be projected based on the screen size. Here, the final image can be an image that presents a vignetting effect in the outer region of the edge of the image to be projected.

[0108] The projection device 100 according to embodiments of the present disclosure can project a final image, including a vignetting effect, onto a screen or space.

[0109] Figure 9 This is a diagram illustrating the operation of setting a background image in a projection device 100 according to an embodiment of the present disclosure.

[0110] refer to Figure 9 The projection device 100 according to embodiments of the present disclosure can set a background original image to which blurring is to be applied. The projection device 100 according to embodiments of the present disclosure can project a settings menu screen 910 for the background image onto a screen or in space. The settings menu screen according to embodiments of the present disclosure may include a menu for setting a background original image to which blurring is to be applied.

[0111] According to embodiments of the present disclosure, the projection device 100 can receive user input for selecting a menu through the control device 900, and set the original background image based on the user input.

[0112] The settings menu screen 910 may include a first menu 920 for setting the image to be projected as the background original image. When the on / off button included in the first menu 920 is set to "on", the projection device 100 can generate a blurred image by performing blurring processing on the image to be projected.

[0113] Furthermore, the settings menu screen 910 may include a second menu 930 for turning the automatic settings function on or off. When the automatic settings function is enabled, the projection device 100 may analyze the image to be projected to extract the atmosphere, theme, etc. of the image to be projected, and generate a background original image corresponding to the extracted atmosphere, theme, etc., or receive a background original image from an external device. However, embodiments of this disclosure are not limited thereto.

[0114] Furthermore, the settings menu screen 910 may include a third menu 940 for the user to set the atmosphere, theme, etc. of the original background image. The user can use the third menu 940 to directly set the atmosphere, theme, etc. of the original background image. When the user sets the atmosphere, theme, etc. of the original background image, the projection device 100 can generate an original background image corresponding to the set atmosphere, theme, etc., or receive an original background image from an external device. However, embodiments of this disclosure are not limited thereto.

[0115] Figure 10 This is a diagram illustrating the operation of a projection device 100 according to an embodiment of the present disclosure to generate a background original image 1040 based on an image 1010 to be projected.

[0116] refer to Figure 10 The projection device 100 according to embodiments of the present disclosure may include an image analysis module 1020, which is configured to analyze the image 1010 to be projected and obtain information about the atmosphere, theme, etc. of the image 1010. The image analysis module 1020 may include suitable logic, circuitry, interfaces, and / or code to analyze the image 1010 and obtain information about the atmosphere, theme, etc. of the image 1010.

[0117] The image analysis module 1020 can analyze the perceived color, lighting, hue, etc., of the image 1010 and obtain information about the atmosphere of the image 1010, representing the overall tone or feeling of the image 1010 related to the emotions and feelings conveyed to the viewer. Furthermore, the image analysis module 1020 can extract information about objects included in the image 1010 and obtain information about the subject matter of the image 1010. However, embodiments of this disclosure are not limited thereto.

[0118] The image analysis module 1020 may include one or more neural networks. According to embodiments of this disclosure, the image analysis module 1020 can obtain information about the atmosphere, subject, etc., of the image 1010 by using one or more neural networks. For example, the image analysis module 1020 can input the image 1010 into one or more neural networks and output information about the atmosphere, subject, etc., of the image 1010 as result data.

[0119] Neural networks need to be trained according to a specific purpose so that they accurately output result data corresponding to the input data. Here, training can instruct various types of data to be input into the neural network, and the network is trained to discover or learn methods for analyzing the input data, classifying the input data, and / or extracting features to generate result data from the input data. Specifically, through training, the neural network can learn from the training data and optimize and set the weight values ​​within the network. Then, with optimized weight values, the neural network learns from the input data and outputs the target result.

[0120] For example, through training, the weight values ​​in one or more neural networks can be optimized, enabling these networks to analyze images and output information about the image's atmosphere, subject, etc. Therefore, one or more trained neural networks can receive images and output information about the image's atmosphere, subject, etc., through various methods.

[0121] The projection device 100 according to an embodiment of the present disclosure may include an image generation module 1030 configured to generate a background original image 1040 based on information obtained by analyzing an image 1010 (e.g., information about the atmosphere, theme, etc. of the image 1010).

[0122] The image generation module 1030 may include suitable logic, circuitry, interfaces, and / or code to generate a background original image 1040 based on information obtained by analyzing the image 1010.

[0123] Image generation module 1030 may include one or more neural networks. Image generation module 1030 according to embodiments of the present disclosure may generate background original image 1040 by using one or more neural networks. For example, image generation module 1030 may output background original image 1040 as result data by inputting information obtained by analyzing image 1010 (e.g., information about the atmosphere, subject, etc. of image 1010) into one or more neural networks.

[0124] For example, through training, the weight values ​​in one or more neural networks can be optimized so that the one or more neural networks output a generated original background image based on information obtained by analyzing the image (e.g., information about the atmosphere, subject, etc. of the image). Therefore, one or more trained neural networks can receive information obtained by analyzing the image (e.g., information about the atmosphere, subject, etc. of the image) and output the original background image through various methods. However, embodiments of this disclosure are not limited thereto.

[0125] According to embodiments of the present disclosure, the projection device 100 can generate a blurred image by performing blurring processing on the original background image 1040. Reference has been made above. Figure 2 Operation S220 describes the method for performing fuzzing in detail, therefore, its detailed description is not provided hereafter.

[0126] The projection device 100 can generate a background image by performing image processing to create a vignetting effect in the edge regions of a blurred image. The projection device 100 can also create a vignetting effect by generating shadows (dark areas) in the edge regions of the blurred image. This has already been referenced above. Figure 2 The operation S230 has been described in detail, therefore, its detailed description will not be provided again.

[0127] Figure 11 This is a diagram illustrating the operation of a projection device 100 generating a background image according to an embodiment of the present disclosure.

[0128] refer to Figure 11 The image to be projected can be an image included in slide 1100. The projection device 100 according to embodiments of this disclosure can generate a background image using one of other images included in slide 1100.

[0129] For example, when a first image 1110 included in slide 1100 is projected, a first blurred image can be generated by performing blurring processing on a second image 1120 included in the same slide 1100. The projection device 100 can generate a first background image by performing image processing to include a vignetting effect in the generated first blurred image. The projection device 100 can project an image on a screen or in space in which the first background image and the first image 1110 are combined.

[0130] When the second image 1120 included in the projected slide 1100 is displayed, a second blurred image can be generated by performing blurring processing on the third image 1130 included in the same slide 1100. The projection device 100 can generate a second background image by performing image processing to include a vignetting effect in the generated second blurred image. The projection device 100 can project an image in which the second background image and the second image 1120 are combined onto a screen or in space.

[0131] Figure 12 This is a diagram illustrating the operation of a projection device 100 generating a background image according to an embodiment of the present disclosure.

[0132] refer to Figure 12 According to embodiments of the present disclosure, the projection device 100 can project video content 1200 comprising multiple frame images. The projection device 100 according to embodiments of the present disclosure can detect frame images with scene changes from among the multiple frame images included in the video content 1200, and generate a blurred image using the frame images with scene changes.

[0133] The projection device 100 according to embodiments of the present disclosure can extract features from each of a plurality of frame images and detect scene changes based on the differences between the extracted features. However, embodiments of the present disclosure are not limited thereto.

[0134] For example, such as Figure 12 As shown, the projection device 100 can detect scene changes from the first frame image 1210. The projection device 100 can generate a first blurred image 1215 by performing blurring processing on the first frame image 1210. The projection device 100 can generate a first background image by performing image processing, such that the generated first blurred image 1215 includes a vignetting effect. The projection device 100 can project an image consisting of the first background image and the first frame image 1210 onto a screen or in space.

[0135] When there is no scene change in the second frame image 1220 and the third frame image 1230, the projection device 100 can generate a second background image and a third background image by performing image processing to include a vignetting effect in the first blurred image 1215. The projection device 100 can project an image combining the second background image and the second frame image 1220, and an image combining the third background image and the third frame image 1230, onto a screen or in space.

[0136] Furthermore, when a scene change is detected in the fourth frame image 1240, the projection device 100 can generate a second blurred image 1245 by performing blurring processing on the fourth frame image 1240. The projection device 100 can generate a fourth background image by performing image processing to include a vignetting effect in the generated second blurred image 1245. The projection device 100 can project an image in which the fourth background image and the fourth frame image 1240 are combined onto a screen or in space.

[0137] When there is no scene change in the fifth frame image 1250, the projection device 100 can generate a fifth background image by performing image processing to include a vignetting effect in the second blurred image 1245. The projection device 100 can project an image in which the fifth background image and the fifth frame image 1250 are combined onto a screen or in space.

[0138] Figure 13 This is a block diagram illustrating the configuration of a projection device 100 according to an embodiment of the present disclosure.

[0139] refer to Figure 13 The projection device 100 according to embodiments of the present disclosure may include a communicator 110, a processor 120, a memory 130, and a projector 140.

[0140] The communicator 110 according to embodiments of this disclosure can send data or signals to and receive data or signals from external devices or servers. For example, the communicator 110 may include a Wi-Fi module, a Bluetooth module, an infrared communication module, a wireless communication module, a local area network (LAN) module, an Ethernet module, or a wired communication module. Here, each communication module may be implemented in the form of at least one hardware chip.

[0141] The Wi-Fi module and Bluetooth module can communicate via Wi-Fi and Bluetooth methods, respectively. When using a Wi-Fi module or Bluetooth module, various types of connection information, such as Service Set Identifier (SSID) or session key, can be sent or received first. Communication can be established using this connection information, and then various types of information can be sent or received. The wireless communication module may include at least one communication chip that performs communication according to various wireless communication standards, such as ZigBee, 3G, 3rd Generation Partnership Project (3GPP), LTE, LTE-A Advanced, 4G, and 5G.

[0142] The communicator 110 according to an embodiment of the present disclosure can receive an image or image content to be projected from an external device. The communicator 110 according to an embodiment of the present disclosure can communicate with a control device. The communicator 110 can receive signals corresponding to user input from the control device.

[0143] According to embodiments of the present disclosure, the processor 120 can control the overall operation of the projection device 100 and the signal flow between the internal components of the projection device 100, and perform data processing functions.

[0144] Processor 120 may include single-core, dual-core, triple-core, quad-core, or multi-core processors. Furthermore, processor 120 may include a single processor or multiple processors. For example, processor 120 may be implemented using a main processor and sub-processors.

[0145] Furthermore, processor 120 may include at least one of a central processing unit (CPU), a graphics processing unit (GPU), or a video processing unit (VPU). According to embodiments of this disclosure, processor 120 may be implemented as a system-on-a-chip (SoC) in which at least one of a CPU, GPU, or VPU is integrated. Processor 120 may also include a neural processing unit (NPU).

[0146] The memory 130 may include a single memory or multiple memories. The memory 130 according to embodiments of the present disclosure may store various types of data, programs, or applications for driving and controlling the projection device 100.

[0147] Furthermore, the program stored in memory 130 may include one or more instructions. The program (one or more instructions) or application stored in memory 130 may be executed by processor 120.

[0148] The processor 120 according to embodiments of the present disclosure can be configured to execute one or more instructions stored in memory 130 to obtain an image to be projected. The image according to embodiments of the present disclosure may be an image pre-stored in memory 130 or an image received from an external device via communicator 110. Furthermore, the image may be an image that has already undergone various types of image processing (such as decoding, scaling, noise filtering, frame rate conversion, resolution conversion, etc.) performed by the video processor.

[0149] The processor 120 according to embodiments of the present disclosure may be configured to execute one or more instructions stored in memory 130 to generate a blurred image based on an image. For example, the processor 120 may generate a blurred image by performing blurring processing on the image. Here, blurring or blurring processing may be performed to blur the image by reducing the sharpness of the image and providing a soft blur effect.

[0150] The processor 120 according to embodiments of the present disclosure can perform blurring processing on an image by performing filtering. The processor 120 can perform filtering on the image by using various filters. For example, the processor 120 can perform blurring processing (Gaussian blur) by using a Gaussian filter, blurring processing (mean blur) by using a mean filter, and blurring processing (median blur) by using a median filter. Such filters are merely examples, and the processor 120 according to embodiments of the present disclosure can perform blurring processing by using various filters.

[0151] Processor 120 can obtain an image to be blurred (e.g., a background original image) based on the image to be projected. For example, processor 120 can analyze the image to be projected to obtain information about the atmosphere, subject, etc. indicated in the image, and generate a background original image based on the obtained information. Processor 120 can receive the background original image corresponding to the obtained information from an external device via communicator 110. Processor 120 can generate a blurred image by performing blurring processing on the background original image.

[0152] Processor 120 can generate a blurred image by performing blurring processing on another image associated with the image to be projected. For example, the other image associated with the image to be projected may include another image stored in the same region as the image to be projected, another image classified into the same group as the image to be projected according to a specific criterion, another image having the same or similar atmosphere as the image to be projected, and another image indicating the same or similar subject as the image to be projected. However, embodiments of this disclosure are not limited thereto.

[0153] According to embodiments of the present disclosure, the processor 120 may be configured to execute one or more instructions stored in the memory 130 to generate a background image by performing image processing to produce a vignetting effect at the edges of a blurred image.

[0154] According to embodiments of the present disclosure, the processor 120 can produce a vignetting effect by generating shadows (dark areas) in the edge regions of a blurred image. Here, the processor 120 can apply different vignetting ratios depending on the location of the edge regions. The vignetting ratio is a value that indicates the degree of vignetting, and when the value increases, the dark area increases, and when the value decreases, the dark area decreases.

[0155] According to embodiments of the present disclosure, the processor 120 can apply a vignetting ratio to a blurred image at different times. Therefore, the vignetting effect presented in the edge regions of the background image can vary over time.

[0156] The processor 120 according to embodiments of the present disclosure can be configured to execute one or more instructions stored in memory 130 to combine an image to be projected with a background image. For example, the processor 120 can generate a final image by combining the image to be projected with a generated background image. Here, the processor 120 can generate the final image by scaling the background image or the image to be projected based on the screen size. The final image may be an image that exhibits a vignetting effect in the peripheral region of the edges of the image to be projected.

[0157] The processor 120 can control the projector 140 to project a final image that combines a background image and the image to be projected onto a screen or in space.

[0158] The projector 140 according to an embodiment of the present disclosure may include a light source, a lens, etc., configured to generate light, and may also include a driver configured to adjust the direction, position, angle, etc. of the projection. The projector 140 can project a final image by driving the light source or adjusting the direction, position, angle, etc. of the projection according to control signals received from the processor 120.

[0159] According to embodiments of this disclosure, a vignetting effect is presented in the peripheral region of the edge of the image to be projected, so that the user or viewer viewing the image can further focus on viewing the image and have a viewing experience as if the space of the projected image and the real space are connected to each other.

[0160] Figure 13 The block diagram of the projection device 100 shown is a block diagram according to an embodiment of the present disclosure. Depending on the specifications of the actual implemented projection device 100, components in the block diagram may be integrated, components may be added, or components may be omitted. In other words, if necessary, two or more components may be integrated into one component, or one component may be divided into two or more components. Furthermore, the functions performed by each block are only for describing embodiments of the present disclosure, and specific operations or devices do not limit the scope of the claims of the present disclosure.

[0161] Figure 14 This is a diagram illustrating a display device 1400 for displaying an image including a vignetting effect according to an embodiment of the present disclosure.

[0162] refer to Figure 14 The display device 1400 according to an embodiment of the present disclosure is a device configured to process image signals and display images, and may include a display.

[0163] The display device 1400 according to embodiments of this disclosure can be implemented in any of a variety of forms, such as a television (TV) including a display, a smart monitor, a mobile phone, a smartphone, a tablet PC, a digital camera, a camcorder, a laptop computer, a desktop computer, an e-book terminal, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, an MP3 player, a digital video disc (DVD) player, a wearable device, a video wall, digital signage, a digital information display (DID), a projector display, a refrigerator, and a washing machine. Furthermore, the display device 1400 can be a fixed electronic device arranged in a fixed location or a portable mobile electronic device, and can be a digital broadcast receiver capable of receiving digital broadcasts. However, the display device 1400 is not limited to these.

[0164] The display device 1400 according to embodiments of the present disclosure can provide a vignetting effect to an image displayed on a monitor. The display device 1400 according to embodiments of the present disclosure can perform and reference... Figures 1 to 13 The operation is the same as that of the projection device 100 described.

[0165] For example, display device 1400 can generate a blurred image based on an image to be displayed, and generate a background image by performing image processing to create a vignetting effect in the edge areas of the blurred image. Display device 1400 can combine the image to be displayed with the background image and display the composite image on the display.

[0166] According to embodiments of the present disclosure, the display device 1400 can determine whether to apply a vignette effect based on user input. For example, when a vignette function is activated based on user input, the display device 1400 can process an image displayed on the screen such that a vignette effect is presented in the edge areas of the image.

[0167] Display device 1400 can determine whether to apply a vignetting effect based on ambient illuminance. For example, display device 1400 can obtain illuminance information around display device 1400, and when the ambient illuminance value is a threshold or lower (when the image viewing environment is dark), display device 1400 can process the image displayed on the display to produce a vignetting effect in the edge areas of the image.

[0168] Figure 15 This is a block diagram of the configuration of a display device 1500 according to an embodiment of the present disclosure.

[0169] Figure 15 The display device 1500 can be Figure 14 Example of display device 1400.

[0170] refer to Figure 15 The display device 1500 according to embodiments of the present disclosure may include a tuner 1540, a processor 1510, a display 1520, a communicator 1550, a sensing unit 1530, an input / output unit 1570, a video processor 1580, an audio processor 1585, an audio output unit 1560, a memory 1590, and a power supply 1595.

[0171] The tuner 1540 according to embodiments of this disclosure can amplify, mix, and resonate broadcast signals received via a line or wirelessly, tuning and selecting only the frequency of the channel that the display device 1500 wants to receive from among many radio wave components. The broadcast signals include audio, video, and supplementary information (e.g., electronic program guides (EPGs)).

[0172] Tuner 1540 can receive broadcast signals from various sources such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, and internet broadcasting. Tuner 1540 can also receive broadcast signals from sources such as analog or digital broadcasting.

[0173] The communicator 1550 according to embodiments of the present disclosure can send data or signals to and receive data or signals from external devices or servers. For example, the communicator 1550 may include a Wi-Fi module, a Bluetooth module, an infrared communication module, a wireless communication module, a local area network (LAN) module, an Ethernet module, or a wired communication module. Here, each communication module may be implemented in the form of at least one hardware chip.

[0174] The Wi-Fi module and Bluetooth module can communicate via Wi-Fi and Bluetooth methods, respectively. When using a Wi-Fi module or Bluetooth module, various types of connection information, such as SSID or session keys, can be sent or received first. Communication can be established using this connection information, and then various types of information can be sent or received. The wireless communication module may include at least one communication chip that performs communication according to various wireless communication standards, such as ZigBee, 3G, 3GPP, LTE, LTE-A, 4G, and 5G.

[0175] The communicator 1550 according to embodiments of the present disclosure can receive control signals or control commands from an external control device. For example, the communicator 1550 may include an infrared (IR) module configured to send signals to and receive signals from the external control device according to an IR communication standard. Specifically, the communicator 1550 can receive control signals or control commands from the control device corresponding to user input (e.g., key or button input from the control device).

[0176] The sensing unit 1530 according to embodiments of the present disclosure can detect a user's voice, a user's image, or a user's interaction, and may include a microphone 1531, a camera 1532, and a light receiver 1533.

[0177] Microphone 1531 receives voice input from the user. Microphone 1531 converts the received voice into an electrical signal and outputs the electrical signal to processor 1510. The user's voice may include, for example, voice corresponding to menus or functions of display device 1500. For example, microphone 1531 may receive user voice corresponding to a rotation command on display 1520, convert the received voice into an electrical signal, and output the electrical signal to processor 1510.

[0178] Camera 1532 can receive images (e.g., consecutive frames) corresponding to user movements, including gestures, within its recognition range. Processor 1510 can use the result of recognizing the received movement to select a menu displayed on display device 1500, or perform control corresponding to that result. For example, processor 1510 can receive images from camera 1532, recognize user movements from the received images corresponding to the rotation of display 1520, and rotate display 1520 based on the recognized user movements.

[0179] The light receiver 1533 receives light signals (including control signals) from an external control device through a light window in the bezel of the display 1520. The light receiver 1533 can receive light signals corresponding to user input (e.g., touch, press, touch gesture, voice, or movement) from the control device. Control signals can be extracted from the received light signals under the control of the processor 1510.

[0180] The input / output unit 1570 according to embodiments of the present disclosure can receive video (e.g., moving images), audio (e.g., voice or music), and additional information (e.g., electronic program guide (EPG)) from outside the display device 1500. The input / output unit 1570 may include any one of a High Definition Multimedia Interface (HDMI), Mobile High Definition Link (MHL), Universal Serial Bus (USB), DisplayPort (DP), Thunderbolt, Video Graphics Array (VGA) port, RGB port, D-SUB, Digital Video Interface (DVI), Component Jack, and PC port.

[0181] According to embodiments of the present disclosure, a video processor 1580 performs processing on video data received by a display device 1500. The video processor 1580 can perform various image processing operations on the video data, such as decoding, scaling, noise filtering, frame rate conversion, and resolution conversion.

[0182] Processor 1510 may include single-core, dual-core, triple-core, quad-core, or multi-core processors. Furthermore, processor 1510 may include multiple processors. For example, processor 1510 may include a main processor and sub-processors operating in sleep mode.

[0183] Furthermore, processor 1510 may include at least one of a CPU, GPU, or VPU. According to embodiments of this disclosure, processor 1510 may be implemented as a SoC (System-on-a-Chip) in which at least one of a CPU, GPU, or VPU is integrated. Processor 1510 may also include an NPU.

[0184] The processor 1510 may include random access memory (RAM) for storing signals or data input from external sources to the display device 1500 or for use as storage areas corresponding to various tasks performed by the display device 1500, read-only memory (ROM) for storing control programs for control by the display device 1500, and the processor itself.

[0185] The memory 1590 according to embodiments of the present disclosure can store various types of data, programs, or applications for driving and controlling the display device 1500.

[0186] Furthermore, the program stored in memory 1590 may include one or more instructions. The program (one or more instructions) or application stored in memory 1590 may be executed by processor 1510.

[0187] The processor 1510 according to embodiments of the present disclosure can be configured to execute one or more instructions stored in memory 1590 to obtain an image to be displayed. The image according to embodiments of the present disclosure may be an image pre-stored in memory 1590 or an image received from an external device via tuner 1540 or communicator 1550. Furthermore, the image may be an image that has already undergone various types of image processing (such as decoding, scaling, noise filtering, frame rate conversion, resolution conversion, etc.) performed by video processor 1580.

[0188] The processor 1510 according to embodiments of the present disclosure can be configured to execute one or more instructions stored in memory 1590 to generate a blurred image based on an image. For example, the processor 1510 can generate a blurred image by performing blurring processing on the image. Here, blurring or blurring processing can be performed to blur the image by reducing the sharpness of the image and providing a soft blur effect.

[0189] The processor 1510 according to embodiments of the present disclosure can perform blurring processing on an image by performing filtering. The processor 1510 can perform filtering on the image by using various filters. For example, the processor 1510 can perform blurring processing (Gaussian blur) by using a Gaussian filter, blurring processing (mean blur) by using a mean filter, and blurring processing (median blur) by using a median filter. Such filters are merely examples, and the processor 1510 according to embodiments of the present disclosure can perform blurring processing by using various filters.

[0190] Processor 1510 can obtain an image to be blurred (e.g., a background original image) based on an image to be displayed. For example, processor 1510 can analyze the image to be displayed to obtain information about the atmosphere, subject, etc., indicated in the image, and generate a background original image based on the obtained information. Processor 1510 can receive the background original image corresponding to the obtained information from an external device via communicator 1550. Processor 1510 can generate a blurred image by performing blurring processing on the background original image.

[0191] Processor 1510 can generate a blurred image by performing blurring processing on another image associated with the image to be displayed. For example, the other image associated with the image to be displayed may include another image stored in the same area as the image to be displayed, another image classified into the same group as the image to be displayed according to a specific criterion, another image having the same or similar atmosphere as the image to be displayed, and another image indicating the same or similar subject as the image to be displayed. However, embodiments of this disclosure are not limited thereto.

[0192] According to embodiments of the present disclosure, the processor 1510 may be configured to execute one or more instructions stored in the memory 1590 to generate a background image by performing image processing to produce a vignetting effect at the edges of a blurred image.

[0193] According to embodiments of the present disclosure, the processor 1510 can produce a vignetting effect by generating shadows (dark areas) in the edge regions of a blurred image. Here, the processor 1510 can apply different vignetting ratios depending on the location of the edge regions. The vignetting ratio is a value that indicates the degree of vignetting, and when the value increases, the dark area increases, and when the value decreases, the dark area decreases.

[0194] According to embodiments of the present disclosure, the processor 1510 can apply a vignetting ratio to a blurred image at different times. Therefore, the vignetting effect presented in the edge regions of the background image can vary over time.

[0195] The processor 1510 according to embodiments of the present disclosure can be configured to execute one or more instructions stored in memory 1590 to combine an image to be displayed with a background image. For example, the processor 1510 can generate a final image by combining the image to be displayed with a generated background image. Here, the processor 1510 can generate the final image by scaling the background image or the image to be displayed based on the screen size. The final image may be an image that exhibits a vignetting effect in the peripheral region of the edges of the image to be displayed.

[0196] The processor 1510 can control the display 1520 to display the final image in which the background image and the image to be displayed are combined.

[0197] The display 1520 according to embodiments of the present disclosure can generate drive signals by converting image signals, data signals, on-screen display (OSD) signals, or control signals processed by the processor 1510. The display 1520 can be implemented as a plasma display panel (PDP), a liquid crystal display (LCD), an organic light-emitting diode (OLED), or a flexible display, or it can be implemented as a three-dimensional (3D) display. The display 1520 can be configured as a touchscreen used as both an input and output device.

[0198] According to an embodiment of the present disclosure, the display 1520 can display a final image under the control of the processor 1510, wherein the final image includes a background image with a vignetting effect and an image to be displayed that are combined.

[0199] The audio processor 1585 performs processing on audio data. The audio processor 1585 can perform various processing on the audio data, such as decoding, amplification, or noise filtering. The audio processor 1585 may include multiple audio processing modules to process audio corresponding to multiple pieces of content.

[0200] The audio output unit 1560, under the control of the processor 1510, outputs audio included in the broadcast signal received via the tuner 1540. The audio output unit 1560 can output audio (e.g., voice or sound) input via the communicator 1550 or the input / output unit 1570. Furthermore, the audio output unit 1560 can, under the control of the processor 1510, output audio stored in the memory 1590. The audio output unit 1560 may include at least one of a speaker, a headphone output terminal, or a Sony / Philips digital interface (S / PDIF) terminal.

[0201] Under the control of the processor 1510, the power supply 1595 provides power from an external power source to the components inside the display device 1500. Furthermore, under the control of the processor 1510, the power supply 1595 can also provide power from one or more batteries located inside the display device 1500 to the components inside the display device 1500.

[0202] Memory 1590 can store various types of data, programs, or applications for driving and controlling display device 1500 under the control of processor 1510. Memory 1590 may include a broadcast receiving module, channel control module, volume control module, communication control module, voice recognition module, motion recognition module, light receiving module, display control module, audio control module, external input control module, power control module, power control module for wirelessly (e.g., Bluetooth) connected external devices, a voice database (DB), or a motion database. The modules and DB of memory 1590 can be implemented in software to perform broadcast receiving control functions, channel control functions, volume control functions, communication control functions, voice recognition functions, motion recognition functions, light receiving control functions, display control functions, audio control functions, external input control functions, power control functions, or power control functions for wirelessly (e.g., Bluetooth) connected external devices within display device 1500. Processor 1510 can execute each function using the software stored in memory 1590.

[0203] Figure 15 The block diagram of the display device 1500 shown is a block diagram according to an embodiment of the present disclosure. Depending on the specifications of the actual implemented display device 1500, components of the block diagram may be integrated, components may be added, or components may be omitted. In other words, if necessary, two or more components may be integrated into one component, or one component may be divided into two or more components. Furthermore, the functions performed by each block are only for describing embodiments of the present disclosure, and specific operations or devices do not limit the scope of the present disclosure.

[0204] Projection devices according to embodiments of the present disclosure may include a projector, a memory storing one or more instructions, and at least one processor configured to execute one or more instructions.

[0205] At least one processor may be configured to execute one or more instructions to obtain the first image.

[0206] At least one processor may be configured to execute one or more instructions to generate a blurred image based on the first image.

[0207] At least one processor can be configured to execute one or more instructions to obtain a background image by performing image processing on the edge regions of a blurred image to produce a vignetting effect.

[0208] At least one processor can be configured to execute one or more instructions to control the projector to project a second image in which a background image and a first image are combined.

[0209] At least one processor may also be configured to execute one or more instructions to perform image processing by applying different vignetting ratios based on the location of edge regions of the blurred image.

[0210] At least one processor may also be configured to execute one or more instructions to perform image processing such that the vignetting effect in the edge regions of the background image changes over time.

[0211] The at least one processor may also be configured to execute one or more instructions to generate a blurred image by performing blurring processing on the first image.

[0212] At least one processor may also be configured to execute one or more instructions to perform masking processing on the central region of the first image, and to generate a blurred image by performing blurring processing on the first image that has already undergone masking processing.

[0213] At least one processor may also be configured to execute one or more instructions to perform the following operations: add black fill to the edges of a first image and generate a blurred image by performing blurring on the first image to which black fill has been added.

[0214] At least one processor may also be configured to execute one or more instructions to perform the following operations: based on a first image including a mailbox, remove the mailbox from the first image, and generate a blurred image by performing blurring processing on the first image with the mailbox removed.

[0215] At least one processor may also be configured to execute one or more instructions to obtain a third image based on a first image and to generate a blurred image by performing blurring processing on the third image.

[0216] At least one processor may also be configured to execute one or more instructions to obtain at least one of the atmosphere or theme of the first image by analyzing the first image, and to obtain a third image based on at least one of the atmosphere or theme of the first image.

[0217] Operating a projection device according to embodiments of the present disclosure may include obtaining a first image.

[0218] The operation method according to embodiments of this disclosure may include generating a blurred image based on a first image.

[0219] The operation method according to embodiments of this disclosure may include obtaining a background image by performing image processing on the edge regions of a blurred image to present a vignetting effect.

[0220] The operation method according to embodiments of this disclosure may include projecting a second image in which a background image and a first image are combined.

[0221] Obtaining the background image may involve performing image processing by applying different vignetting ratios based on the location of the edge regions of the blurred image.

[0222] Obtaining the background image may include performing image processing such that the vignetting effect in the edge regions of the background image changes over time.

[0223] The generation of a blurred image may include: generating a blurred image by performing a blurring process on a first image.

[0224] The generation of a blurred image may include: performing a masking process on the central region of a first image, and generating a blurred image by performing a blurring process on the first image that has already undergone the masking process.

[0225] The generation of a blurred image may include: adding black fill to the edges of a first image, and generating a blurred image by performing a blurring process on the first image with the added black fill.

[0226] The operation method may further include: removing the mailbox from the first image based on the first image including the mailbox, wherein the generation of the blurred image may include: generating the blurred image by performing blurring processing on the first image from which the mailbox has been removed.

[0227] The generation of a blurred image may include: obtaining a third image based on a first image; and generating a blurred image by performing blurring processing on the third image.

[0228] Obtaining a third image based on a first image may include: obtaining at least one of the atmosphere or theme of the first image by analyzing the first image, and obtaining a third image based on at least one of the atmosphere or theme of the first image.

[0229] The projection device according to embodiments of the present disclosure can provide a vignetting effect by generating shadows (shadows) in the edge areas of the projected image content.

[0230] When a vignetting effect is applied to the edges of the projected image content, the disconnect between the displayed image content and the viewer's physical space is reduced. Therefore, the viewer can focus more intently on the image content and experience a viewing experience as if the image content space and the real space are interconnected.

[0231] The operation methods of the projection device or display device according to embodiments of the present disclosure can be implemented in the form of program commands executed by various computers and recorded on a computer-readable recording medium. The computer-readable recording medium may include at least one of program commands, data files, or data structures. The program commands recorded on the computer-readable recording medium may be specially designed or known to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media (such as hard disks, floppy disks, and magnetic tapes), optical media (such as CD-ROMs and DVDs), magneto-optical media (such as optical-magnetic-floppy disks), and hardware devices specifically configured to store and execute program commands (such as read-only memory (ROM), random access memory (RAM), and flash memory). Examples of computer commands include machine code generated by a compiler, and high-level language code that can be executed by a computer using an interpreter.

[0232] Furthermore, the method of operating the projection device according to embodiments of this disclosure can be provided by including it in a computer program product. The computer program product is a product that can be traded between a seller and a buyer.

[0233] Computer program products may include software programs or computer-readable storage media storing software programs. For example, computer program products may be available from manufacturers of electronic devices or electronic marketplaces (e.g., Google Play Store). TM or App Store TM Electronic distribution refers to products in the form of software programs (e.g., downloadable applications). For electronic distribution, at least a portion of the software program may be stored in a storage medium or temporarily generated. In this case, the storage medium may be the storage medium of a manufacturer's server, an electronic marketplace server, or a relay server temporarily storing the software program.

[0234] Computer program products may include the storage media of a server or the storage media of a client device in a system comprising server and client devices. When a third device (e.g., a smartphone) is present that communicates with the server or client device, the computer program product may include the storage media of the third device. The computer program product may include software programs transferred from the server to the client device or the third device, or from the third device to the client device.

[0235] In this scenario, one of the server, client device, and third device may execute the method according to embodiments of the present disclosure by executing a computer program product. Two or more of the server, client device, and third device may execute a computer program product to execute the method according to embodiments of the present disclosure in a distributed manner.

[0236] For example, a server, such as a cloud server or an artificial intelligence server, can execute a computer program product stored on the server to control a client device that is communicatively connected to the server to perform a method according to an embodiment of this disclosure.

[0237] While embodiments of the present disclosure have been specifically shown and described in detail, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the scope of the present disclosure as defined by the appended claims.

Claims

1. A projection device (100), comprising: Projector (140); At least one memory (130) stores one or more instructions; and At least one processor (120) is configured to execute the one or more instructions. Wherein, the one or more instructions, when executed by the at least one processor, cause the projection device to: Obtain the first image; Generate a blurred image based on the first image; A background image is obtained by performing image processing on the edge regions of the blurred image to produce a vignetting effect on the edge regions; and The projector is controlled to project a second image that combines the background image and the first image.

2. The projection device of claim 1, wherein, When executed by the at least one processor (120), the one or more instructions also cause the projection device to perform the image processing by applying different vignetting ratios according to the position of the edge regions of the blurred image.

3. The projection device according to claim 1 or 2, wherein, When executed by the at least one processor (120), the one or more instructions also cause the projection device to perform the image processing such that the vignetting effect presented in the edge region of the background image changes over time.

4. The projection apparatus according to any one of claims 1 to 3, wherein, When executed by the at least one processor (120), the one or more instructions also cause the projection device to generate the blurred image by performing blurring processing on the first image.

5. The projection device of claim 4, wherein, The one or more instructions, when executed by the at least one processor (120), also cause the projection device to: Perform masking on the central region of the first image; and The blurred image is generated by performing the blurring process on a first image that has already undergone the masking process.

6. The projection device according to claim 4 or 5, wherein, The one or more instructions, when executed by the at least one processor (120), also cause the projection device to: Add black fill to the edges of the first image; and The blurred image is generated by performing a blurring process on a first image that has already been filled with black.

7. The projection apparatus according to any one of claims 1 to 6, wherein, The one or more instructions, when executed by the at least one processor (120), also cause the projection device to: Based on the first image including a mailbox, remove the mailbox from the first image; and The blurred image is generated by performing the blurring process on a first image of which the mailbox has been removed.

8. The projection apparatus according to any one of claims 1 to 3, wherein, The one or more instructions, when executed by the at least one processor (120), also cause the projection device to: Obtain the third image based on the first image; and The blurred image is generated by performing a blurring process on a third image.

9. The projection apparatus according to claim 8, wherein, The one or more instructions, when executed by the at least one processor (120), also cause the projection device to: By analyzing the first image, at least one of the atmosphere of the first image or the subject of the first image is obtained; and The third image is obtained based on at least one of the atmosphere of the first image or the theme of the first image.

10. A method of operating a projection device, the method comprising: Obtain the first image (S210); Generate a blurred image based on the first image (S220); A background image is obtained by performing image processing on the edge regions of the blurred image to produce a vignetting effect on the edge regions (S230); and The projection combines the background image and the first image into a second image (S240, S250).

11. The operating method according to claim 10, wherein, Obtaining the background image includes performing the image processing by applying different vignetting ratios based on the position of the edge regions of the blurred image.

12. The operating method according to claim 10 or 11, wherein, Obtaining the background image includes performing the image processing such that the vignetting effect in the edge region of the background image changes over time.

13. The operating method according to any one of claims 10 to 12, wherein, The process of generating the blurred image includes: generating the blurred image by performing a blurring process on the first image.

14. The operating method according to claim 13, wherein, The generation of the blurred image includes: Masking is applied to the central region of the first image; and The blurred image is generated by performing the blurring process on a first image that has already undergone the masking process.

15. A non-transitory computer-readable recording medium storing a program for performing an operating method according to any one of claims 10 to 14.

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