KR102642583B1 - Apparatus and method for composing image and broadcasting system having the same - Google Patents

Abstract

A video synthesis device and method and a video broadcasting system including the same are disclosed.
The video synthesis device and method and the video broadcasting system including the same may enable natural synthesis by providing video images in which content images are synthesized with video data captured at 360 degrees.
In addition, the video synthesis device and method according to the present invention and the video broadcasting system including the same can provide a smooth real-time broadcasting service by generating composite data composed of content images and then synthesizing and broadcasting video data that is a background video. , a highly efficient and high-performance video synthesis device and method, and a video broadcasting system including the same can be provided by enabling users to modify various types of content images using an authoring tool.

Description

Video synthesis device and method, and video broadcasting system including the same {APPARATUS AND METHOD FOR COMPOSING IMAGE AND BROADCASTING SYSTEM HAVING THE SAME}

The present invention relates to a video synthesis device and method, and a video broadcasting system including the same. It relates to a video synthesis device and method that provides video images with content images synthesized in real time, and a video broadcasting system including the same.

Recently, with the spread of smartphones and the Internet, one-person media broadcasting has received attention as a new broadcasting trend, and the video media platform market is expanding globally.

Accordingly, the video media platform market is developing various technologies to effectively provide various information to media images provided in real time. Among them, attention is being paid to video synthesis technology that provides information by combining content images with real-time video data. .

Conventional video synthesis technology is provided in the form of combining two-dimensional content images with real-time video data. In addition, the conventional 3D image synthesis technology renders and transmits the results of 3D synthesis on all image data captured in real time in a 3D space using pixel shading for each frame. This has the disadvantage of making real-time transmission difficult due to the large amount of computation and requiring high-cost system resources.

The purpose of the present invention to solve the above problems is to provide a highly efficient and high-performance image synthesis device.

In addition, another purpose of the present invention to solve the above problems is to provide a highly efficient and high-performance image synthesis method.

In addition, another purpose of the present invention to solve the above problems is to provide a highly efficient and high-performance video broadcasting system.

An image synthesis method according to an embodiment of the present invention to achieve the above object includes receiving data captured from a video camera in real time and storing image data whose format has been converted, using an authoring tool to store the image data. A step of generating composite data, in which a 3D content image is inserted, and transmitting the composite data to a video output device, so that the video data and a video image composed of the composite data are broadcast by the video output device. Including, generating the composite data includes placing the 3D content image on the video data and modifying the 3D content image using the authoring tool.

The video synthesis apparatus and method according to embodiments of the present invention, and the video broadcasting system including the same, can enable natural synthesis by providing video images in which content images are synthesized with video data captured at 360 degrees.

In addition, the video synthesis device and method according to the present invention, and the video broadcasting system including the same, can provide a smooth real-time broadcasting service by synthesizing and broadcasting video data that is a background video after generating composite data in which content images are synthesized. In addition, a highly efficient and high-performance video synthesis device and method, and a video broadcasting system including the same can be provided by allowing users to modify various types of content images using an authoring tool.

1 is a configuration diagram of a video broadcasting system according to an embodiment of the present invention.
Figure 2 is a block diagram of an image synthesis device according to an embodiment of the present invention.
Figure 3 is a flowchart of an image synthesis method according to an embodiment of the present invention.
Figure 4 is a composite data image for explaining the function of an authoring tool in the image synthesis method according to an embodiment of the present invention.
Figure 5 is an image for explaining an authoring tool provided in the form of a menu bar among the image synthesis methods according to an embodiment of the present invention.
Figure 6 is an image for explaining an image control tool among image control tools according to an embodiment of the present invention.
Figure 7 is an image for explaining an image control tool in the image synthesis method according to an embodiment of the present invention.
Figure 8 is an image for explaining an image control tool in the image synthesis method according to an embodiment of the present invention.
Figure 9 is an image for explaining an image control tool in the image synthesis method according to an embodiment of the present invention.
Figure 10 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.
Figure 11 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.
Figure 12 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.
Figure 13 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.
Figure 14 is an image for explaining a content editing tool in the video synthesis method according to an embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, B, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate overall understanding when describing the present invention, the same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted.

1 is a configuration diagram of a video broadcasting system according to an embodiment of the present invention.

Referring to FIG. 1, the video broadcasting system (S) can output composite data that combines content images with video data captured in real time from a video camera (C).

According to one embodiment, the video broadcasting system (S) may include a video camera (C), an video synthesis device 1000, and an video output device 5000.

In addition, according to another embodiment, the video broadcasting system (S) is not limited to the above-mentioned, but includes a video synthesis device (1000) capable of outputting video, combined with the functions of a separate video output device (5000), and a video camera (C ) may include.

In the following, for clearer explanation, the characteristics of each configuration of the video broadcasting system according to an embodiment of the present invention will be described.

The video camera C may be linked with an image synthesis device 1000 and an image output device 5000, which will be described later. Accordingly, the video camera C can transmit captured data to the video synthesis device 1000 and the video output device 5000, respectively.

According to the embodiment, the video camera C is a 360-degree shooting camera and can acquire 360-degree shooting data in real time.

The video camera (C) is generally provided as a stand-alone camera, but may be provided as a variety of devices including a video camera (C) capable of 360-degree shooting. For example, the video camera C may be provided in the form of at least one of an IP camera, CCTV, omni-directional camera, mobile terminal, and PTZ (Pan Tilt Zoom).

The image synthesis device 1000 may receive captured data from the video camera C. Accordingly, the image synthesis device 1000 can synthesize a content image with the received shooting data.

To be more specific, the image synthesis device 1000 may provide an authoring tool. Accordingly, the image synthesis device 1000 may use at least one function of the authoring tool to generate composite data that combines the content image with the captured data received from the video camera C.

Additionally, the image synthesis device 1000 may be linked with the image output device 5000. Accordingly, the image synthesis device 1000 can transmit the generated composite data to the image output device 5000.

As described above, the image synthesis device 1000 may also be linked with the video camera C. Accordingly, the image synthesis device 1000 can control the operation of the video camera C according to user input.

The image synthesis device (A) will be described in more detail by configuration with reference to FIG. 3 below.

Figure 2 is a block diagram of an image synthesis device according to an embodiment of the present invention.

Referring to FIG. 2 , the image synthesis apparatus 1000 may include a memory 100 that stores at least one command and a processor 200 that executes at least one command of the memory.

In addition, the image synthesis device 1000 includes a transmission and reception device 300, an input interface device 400, an output interface device 500, and a storage device 600 that are connected to a network running through the processor 200 and perform communication. ) and the like may further be included.

According to an embodiment, each of the components 100, 200, 300, 400, 500, and 600 included in the image synthesis device 1000 are connected by a bus 700 and can communicate with each other. .

Among the components 100, 200, 300, 400, 500, 600, and 700 of the image synthesis apparatus 1000, the memory 100 may be composed of at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory 100 may be comprised of at least one of read only memory (ROM) and random access memory (RAM).

Memory 100 may include at least one instruction to be executed by processor 200, which will be described later. According to an embodiment, at least one command includes a command for receiving data captured from a video camera in real time and storing video data whose format has been converted, and a three-dimensional content image is added to the video data using an authoring tool. A command for generating inserted composite data and a command for transmitting the composite data to a video output device so that a video image composed of the video data and the composite data is broadcast by the video output device, The command for generating data may include a command for arranging the 3D content image in the image data and a command for modifying the 3D content image using the authoring tool.

The processor 200 may refer to a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed.

As described above, the processor 200 may execute at least one program command stored in the memory 100. The characteristics of the processor 200 that performs at least one command will be described in more detail when explaining the image synthesis method to be described later.

The transmitting and receiving device 300 may transmit data to or receive data from at least one connected device.

According to an embodiment, the image synthesis device 1000 may receive at least one piece of captured data from the video camera C through the transmission and reception device 300. Here, the captured data may be a 360-degree video image.

Additionally, the image synthesis device 1000 may transmit the synthesized data generated by the transmission/reception device 300 to the image output device 5000.

The input interface device 400 may be configured to receive at least one command from a user. According to an embodiment, the input interface device 400 may include any one of a mouse, a touch pen, or a keyboard.

The output interface device 500 may output at least one data.

According to an embodiment, the output interface device 500 may be provided as a display device. Accordingly, the image synthesis device 1000 outputs a composite image in which 3D content is synthesized according to a command of the processor 200 using the output interface device 500, without configuring a separate image output device 5000. can do.

Like the memory 100 described above, the storage device 600 may be comprised of at least one of a volatile storage medium and a non-volatile storage medium. For example, the storage device 600 may be comprised of at least one of read only memory (ROM) and random access memory (RAM).

According to an embodiment, when the configuration of a separate image output device 5000 is not provided, the storage device 600 pre-stores at least one captured data received from the video camera C and then uses the processor 200 Image data can be generated by combining with composite data generated by a command.

Referring again to FIG. 1, the image output device 5000 may be linked with the image camera C and the image synthesis device 1000, as described above.

Accordingly, the video output device 5000 can receive captured data from the video camera C and receive composite data from the video output device 1000 in real time.

Thereafter, the image output device 5000 may synthesize the received captured data and composite data and output them. Accordingly, the video output device 5000 can broadcast 360-degree video data composed of content images.

Above, a video broadcasting system according to an embodiment of the present invention has been described. Hereinafter, a video synthesis method using the processor operation of the video synthesis device in the video broadcasting system will be described.

Figure 3 is a flowchart of an image synthesis method according to an embodiment of the present invention.

Referring to FIG. 3, the processor 200 in the image synthesis apparatus 1000 may receive at least one piece of captured data from a video camera (S1000). Here, the shooting camera may be a camera that shoots 360 degrees, and the shooting data may be a 360-degree video image captured in real time.

The processor 200 may preprocess the received shooting data. In other words, the processor 200 may generate image data by converting the format of the received shooting data (S2000).

To be described in more detail according to the embodiment, the processor 200 may convert captured data into an image in an equirectangular format using vertex shaders. In other words, the processor 200 can convert captured data, which is a square image, into image data in the form of a sphere and store it.

According to another embodiment of the present invention, when a separate image capture device 5000 is not provided, the processor 200 may store the generated image data in the storage device 600. Accordingly, the processor 200 may synthesize the image data and the composite data stored in the storage device 600 and output them by the output interface device 500 after generating composite data, which will be described later.

The processor 200 may generate composite data in which content images are synthesized based on the image data generated in the preprocessing step (S2000) (S3000).

To be described in more detail according to an embodiment, the processor 200 may use an authoring tool to generate composite data in which a content image is synthesized with video data.

Here, the authoring tool may include at least one function for synthesizing content images.

At least one function included in the authoring tool will be described in more detail below.

Figure 4 is a composite data image for explaining the function of an authoring tool in the image synthesis method according to an embodiment of the present invention.

Referring to FIG. 4, the authoring tool may include at least one function for generating synthetic data.

According to embodiments, the authoring tool may include an image control tool, a content control tool, and a content editing tool. The functions of the image control tool, content control tool, and content editing tool will be described in more detail below with reference to the drawings.

When a display device is provided as the output interface device 500, the authoring tool may be provided in the form of a menu bar (Bar A) or a pop-up window (B) at the top and bottom of the display screen.

Figure 5 is an image for explaining an authoring tool provided in the form of a menu bar among the image synthesis methods according to an embodiment of the present invention.

Referring to FIG. 5, when the authoring tool is provided in the form of a menu bar, the authoring tool generally exists in a hidden state, but when the input interface device 400 is located in a certain area at the top or bottom of the display screen, it appears on the screen. can be displayed.

Below, we will explain the functions of the authoring tool in more detail.

Figure 6 is an image for explaining an image control tool among image control tools according to an embodiment of the present invention.

Referring to FIG. 6, the image control tool may include a function to control execution of image data.

More specifically, as described above, the image synthesis device 1000 can be linked with the video camera C and control the operation of the video camera C.

According to one embodiment, when the user executes the first image control tool icon (A) in FIG. 6 by the input interface device 400, the processor 200 receives shooting data from the image camera (C) and , preprocessed image data can be executed in the output interface device 500.

According to another embodiment, when the user executes the second image control tool icon (B) in FIG. 6 using the input interface device 400, the processor 200 stops linking with the video camera (C), Output of image data to the output interface device 500 may be stopped. For example, when executing the second image control tool icon (B) of FIG. 6, the output interface device 500 may output a black background screen.

Figure 7 is an image for explaining an image control tool in the image synthesis method according to an embodiment of the present invention.

Referring to FIG. 7 , the image control tool may include a function to control the rotation of the image camera C and change the background viewpoint of the image data using the input interface device 400.

To be more specific, the user can control the rotation of the video camera C by executing an image control tool using the input interface device 400. Accordingly, the user can change the background viewpoint of the captured data received from the video camera C and output image data with a changed composition through the output interface device 500.

For example, if the input interface device 400 is a mouse device, the user clicks the right key of the mouse at a point (P1) in the image data displayed on the output interface device 500, and clicks the right key of the mouse at that point ( P1) can be set as the reference point. Thereafter, the user can change the background viewpoint of the image data output to the output interface device 500 by moving the mouse while the right key is clicked. For example, the processor 200 may change the background viewpoint of image data output to the output interface device 500 by rotating the image camera C according to the movement distance and direction of movement of the mouse.

Figures 8 and 9 are images for explaining an image control tool among the image synthesis method according to an embodiment of the present invention. More specifically, FIG. 8 is an image in which a 3D content image is synthesized on video data, and FIG. 9 is an image in which a 2D content image is synthesized in video data.

Referring to FIGS. 8 and 9 , the video control tool may include a function for compositing content into images on video data.

In other words, the video control tool may provide a function to place content images on video data.

According to an embodiment referring to FIG. 8, the user selects at least one 3D content image included in the menu bar by the input interface device 400 and places the selected 3D content image at a desired point on the image data. By doing so, it is possible to create a composite image in which a 3D content image is synthesized with video data.

According to another embodiment with reference to FIG. 9, the user selects at least one two-dimensional content image included in the menu bar by the input interface device 400 and places the selected two-dimensional content image at a desired point on the image data. By doing so, it is possible to create a composite image in which a two-dimensional content image is synthesized with video data.

Figure 10 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.

Referring to FIG. 10, a content control tool may provide a function to change the shape of a 3D content image placed on video data.

According to an embodiment, the content control tool may be provided in the form of a pop-up window on the display screen when a 3D content image is clicked.

The functions of the content control tool will be described in more detail with reference to FIGS. 11 to 13 below.

Figure 11 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.

Referring to FIG. 11, the content control tool can provide a function to adjust the size (Scale) of the 3D content image.

According to an embodiment, the user can adjust the size of the 3D content image placed on the composite image to a desired size by adjusting the slide bar of the Scale item among the functions of the content control tool provided in a pop-up window.

Figure 12 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.

Referring to FIG. 12, the content control tool can provide a function to adjust the direction (rotation) of the 3D content image.

According to the embodiment, the user can change the direction of the three-dimensional content image placed on the composite image to the desired direction by adjusting the slide bar of the rotation item among the functions of the content control tool provided in a pop-up window. .

Figure 13 is an image for explaining a content control tool in the image synthesis method according to an embodiment of the present invention.

Referring to FIG. 13, the content control tool can provide a function to adjust the depth of the 3D content image.

According to an embodiment, the user adjusts the slide bar of the Depth item among the functions of the content editing tool provided in a pop-up window to adjust the distance between the 3D content images when two or more 3D content images are provided. It can be adjusted.

The content control tool of the image synthesis device according to an embodiment of the present invention is not limited to the content control function previously disclosed in FIGS. 11 to 13, and may further include a control function such as deleting a 3D content image. there is.

Figure 14 is an image for explaining a content editing tool in the video synthesis method according to an embodiment of the present invention.

Referring to FIG. 14, the content editing tool may provide a function to individually edit content images placed on video data.

For example, if the input interface device 400 is provided as a mouse, the user can right-click the mouse to execute a content editing tool in the form of a pop-up window on the display screen.

According to embodiments, the content editing tool may provide a find function, a lock function, a show/hide function, a list delete function, etc.

To be more specific, the search function (A) may perform a function of finding the corresponding content image on synthetic data. In other words, by executing the search function (A), the user can generate synthetic data focusing on the corresponding content image.

Additionally, the locking function (B) may perform a function of preventing modification of the corresponding content image on the composite data. In other words, the user can prevent the corresponding content image from being selected or moved by the input interface device 400 by executing the lock function (B).

The show/hide function (C) may be a function that determines whether or not to expose the corresponding content image on the synthetic data.

Depending on the embodiment, if the user disables the show/hide function (C), the corresponding content image may not be exposed when video data is output from the video output device 5000, which will be described later.

The list deletion function (D) can perform the function of removing the corresponding content image from the list of composite data and the menu bar.

Referring again to FIG. 3, the processor 200 may transmit the generated composite data to the image output device 5000 (S4000). Accordingly, the image output device 5000 can output image data obtained by combining the captured data transmitted from the video camera C and the synthesized data in real time.

Above, a video synthesis device and method according to embodiments of the present invention, and a video broadcasting system including the same have been described.

The video synthesis apparatus and method according to embodiments of the present invention, and the video broadcasting system including the same, can enable natural synthesis by providing video images in which content images are synthesized with video data captured at 360 degrees.

In addition, the video synthesis device and method according to the present invention, and the video broadcasting system including the same, can provide a smooth real-time broadcasting service by synthesizing and broadcasting video data that is a background video after generating composite data in which content images are synthesized. In addition, a highly efficient and high-performance video synthesis device and method, and a video broadcasting system including the same can be provided by allowing users to modify various types of content images using an authoring tool.

Accordingly, the video synthesis device and method according to an embodiment of the present invention, and the video broadcasting system including the same, can be used in various fields such as broadcast production as well as similar broadcast activities, content production, games, and AR/VR.

The operations of the method according to the embodiments of the present invention can be implemented as a computer-readable program or code on a computer-readable recording medium. Computer-readable recording media include all types of recording devices that store data that can be read by a computer system. Additionally, computer-readable recording media can be distributed across networked computer systems so that computer-readable programs or codes can be stored and executed in a distributed manner.

Additionally, computer-readable recording media may include hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Program instructions may include not only machine language code such as that created by a compiler, but also high-level language code that can be executed by a computer using an interpreter, etc.

Although some aspects of the invention have been described in the context of an apparatus, it may also refer to a corresponding method description, where a block or device corresponds to a method step or feature of a method step. Similarly, aspects described in the context of a method may also be represented by corresponding blocks or items or features of a corresponding device. Some or all of the method steps may be performed by (or using) a hardware device, such as a microprocessor, programmable computer, or electronic circuit, for example. In some embodiments, one or more of the most important method steps may be performed by such an apparatus.

In embodiments, a programmable logic device (e.g., a field programmable gate array) may be used to perform some or all of the functionality of the methods described herein. In embodiments, a field programmable gate array may operate in conjunction with a microprocessor to perform one of the methods described herein. In general, the methods are preferably performed by some hardware device.

Although the present invention has been described with reference to preferred embodiments of the present invention, those skilled in the art may make various modifications and changes to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it is possible.

S: Video broadcasting system C: Video camera
1000: Video synthesis device 5000: Video output device
100: Memory 200: Processor
300: Transmission and reception device 400: Input interface device
500: output interface device 600: storage device
700: BUS

Claims (10)

A video broadcasting method for real-time broadcasting of a composite video of three-dimensional (3D) content,
Saving captured data obtained from a video camera as image data having a preset format;
Using an authoring tool, the 3D content image is placed in the video data, the 3D content image placed in the video data is transformed, and the modified 3D content image is inserted into the video data so that the 3D content image is inserted. generating synthetic data;
controlling the operation of the video camera according to user input by an image synthesis device that provides the authoring tool; and
Broadcasting the video data and the composite data together or broadcasting the composite data using a video output device;
Including,
The controlling step includes changing the background viewpoint of the image data at which the 3D content image or the corresponding two-dimensional (2D) or 3D object is to be synthesized using an image control tool provided by the image synthesis device, and controlling the image. The tool includes an image control menu, an icon menu, and a control list menu displayed on the screen of the display device,
The controlling step includes providing an object control function for an object synthesized on the image data while the icon menu is opened or activated by a content control tool of the image synthesis device, and the object control function is Equipped with scale control, rotation control, depth control, and delete functions,
The controlling step includes finding, locking, showing/hiding, deleting, or a combination of objects synthesized in the image data while the control list menu is opened or activated by the content editing tool of the image synthesis device. A video broadcasting method that provides functions. delete delete delete In claim 1,
Before broadcasting the synthesized data, vertex shader conversion of 3D content including a specific object synthesized in the synthesized data converts the 3D content into an equirectangular format image, and then converts the 3D content into an equirectangular format image. A video broadcasting method further comprising the step of compositing onto a projection format video. A video broadcasting system that broadcasts videos composed of 3D content in real time,
Save captured data obtained from a video camera as video data with a preset format, place a three-dimensional (3D) content image on the video data using an authoring tool, and place the 3D content image on the video data. an image synthesis device that transforms and inserts the modified 3D content image into the video data to generate composite data with the 3D content image inserted; and
a video output device connected to the video synthesis device and broadcasting the video data and the composite data together or broadcasting the composite data;
Including,
The image synthesis device controls the operation of the video camera according to user input, and is an image control tool for changing the background viewpoint of the image data on which the 3D content image or the corresponding two-dimensional (2D) or 3D object is to be synthesized. Provides, wherein the image control tool includes an image control menu, an icon menu, and a control list menu displayed on the screen of the display device,
The image synthesis device further includes a content control tool for providing an object control function for an object synthesized on the image data while the icon menu is open or activated, where the object control function is configured to determine a size (scale). ) includes adjustment, rotation adjustment, depth adjustment, and delete functions,
The image synthesis device includes a content editing tool for providing functions of finding, locking, showing/hiding, deleting, or combining objects synthesized in the image data while the control list menu is open or activated. Video broadcasting system. delete delete delete In claim 6,
The image synthesis device performs vertex shader conversion on 3D content including a specific object synthesized in the synthesized data, converts the 3D content into an image in equirectangular format, and then converts the 3D content into an image in equirectangular format. A video broadcasting system that composites over video.

Images