CN113055549A - Method and device for playing preview video - Google Patents
Method and device for playing preview video Download PDFInfo
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- CN113055549A CN113055549A CN202011020704.7A CN202011020704A CN113055549A CN 113055549 A CN113055549 A CN 113055549A CN 202011020704 A CN202011020704 A CN 202011020704A CN 113055549 A CN113055549 A CN 113055549A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/2224—Studio circuitry; Studio devices; Studio equipment related to virtual studio applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
Abstract
The embodiment of the invention provides a method and a device for playing a preview video, wherein the method comprises the following steps: identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video; controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image; and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface. The device performs the above method. The method and the device for playing the preview video do not need to manually play the videos shot by all the cameras one by one, so that the efficiency of playing the preview video is improved.
Description
Technical Field
The invention relates to the technical field of virtual reality, in particular to a method and a device for playing a preview video.
Background
The virtual reality is that a virtual world is generated by a computer, a real environment is simulated, and a user interacts and influences with an object in the virtual environment by means of necessary equipment and perception in the aspects of visual perception, listening perception, tactile perception and the like, so that the virtual reality has the characteristics of interactivity, imagination, immersion and the like.
The virtual reality technology can be widely applied to industries such as military affairs, medical treatment, movie and television, competition activities usually need to be relayed, a plurality of camera devices are needed to shoot videos before relaying, and then video contents capable of making the video of the broadcast guide are selected from the videos manually, however, the number of the camera devices is usually too large, so that the manual operation mode is extremely low in efficiency.
Disclosure of Invention
To solve the problems in the prior art, embodiments of the present invention provide a method and an apparatus for playing a preview video.
The embodiment of the invention provides a method for playing a preview video, which comprises the following steps:
identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video;
controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image;
and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
Wherein the recognition result comprises a keyword representing virtual image content; correspondingly, the selecting a target virtual image from the virtual images according to the identification result and the content information of the director video to be produced includes:
and taking the virtual image corresponding to the keyword matched with the content information as the target virtual image.
The identification result comprises the position of a person in each frame of image and/or the ratio of the area of the region where the person is located to the area of the frame of image; correspondingly, the method further comprises the following steps:
and determining the target virtual image frame image according to the position of the person and/or the ratio.
After the step of selecting the target virtual image from the virtual images according to the identification result and the content information of the director video to be produced, the method further comprises the following steps:
and re-identifying the target virtual image, and determining the frame image of the target virtual image according to a re-identification result.
The re-identification result comprises the position of a person in each frame of image and/or the ratio of the area of the region where the person is located to the area of the frame of image; correspondingly, the determining the target virtual image frame image according to the re-recognition result includes:
and determining the target virtual image frame image according to the position of the person and/or the ratio.
Wherein the determining the target virtual image frame image according to the position of the person and/or the ratio comprises:
selecting a frame image corresponding to the figure position with the shortest distance to the center of the frame image as the target virtual image frame image;
or selecting the frame image with the maximum ratio as the target virtual image frame image;
or determining the target virtual image frame image according to the weight respectively corresponding to the position of the person and the ratio, the distance between the position of the person and the center of the frame image, and the ratio of the area of the region where the person is located to the area of the frame image.
Wherein, the virtual image to each virtual camera device respectively shooing is discerned, includes:
and identifying the virtual images respectively shot by the virtual shooting devices by utilizing a deep learning algorithm.
The embodiment of the invention provides a device for playing a preview video, which comprises:
the selection unit is used for identifying the virtual images respectively shot by the virtual shooting devices and selecting a target virtual image from the virtual images according to the identification result and the content information of the director video to be produced;
the display unit is used for controlling the terminal to display the target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image;
and the playing unit is used for controlling the terminal to respond to the action of selecting the target virtual image frame image, launching the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and playing the selected target virtual image in the virtual program guide interface.
An embodiment of the present invention provides an electronic device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein,
the processor, when executing the computer program, implements the method steps of:
identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video;
controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image;
and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
An embodiment of the invention provides a non-transitory computer readable storage medium having a computer program stored thereon, which when executed by a processor implements the following method steps:
identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video;
controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image;
and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
According to the method and the device for playing the preview video, provided by the embodiment of the invention, the target virtual image is selected from the virtual images according to the identification result of the virtual image and the content information of the to-be-produced director video, and the target virtual image is played in the virtual director interface from the target virtual image frame image, so that the videos shot by all cameras do not need to be played manually one by one, and the efficiency of playing the preview video is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for playing a preview video according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a virtual director picture playing a preview video according to the present invention;
fig. 3 is a schematic structural diagram of an apparatus for playing a preview video according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart of an embodiment of a method for playing a preview video, and as shown in fig. 1, the method for playing the preview video includes the following steps:
s101: and identifying the virtual images shot by the virtual shooting devices respectively, and selecting a target virtual image from the virtual images according to the identification result and the content information of the director video to be produced.
Specifically, the device identifies the virtual images respectively shot by each virtual shooting device, and selects a target virtual image from each virtual image according to the identification result and the content information of the director video to be produced. The apparatus may be a computer device performing the above method, for example a server for event activity execution management.
The virtual camera device may include a virtual camera or the like, and the virtual image may include a static virtual scene or a dynamic virtual character animation. Taking the event activity as an example, the static virtual scene may include an in-venue scene, an out-venue scene, and the like; dynamic virtual character animation may include animation of various actions taken by an athlete during performance of an event.
The recognition result may include keywords representing the virtual image content, which may include a hockey game, player awards, player entries, and the like.
The director video to be produced is the director video produced prior to the rebroadcast. The content information of the director video to be produced may be content information of a video clip that may be the director video content, and may be, for example, an ice hockey event.
The content information may be fuzzy-matched with the keyword, for example, the keyword "hockey game" and the content information "hockey game" may be determined as the same meaning content after fuzzy matching.
Because of the characteristics of the event activities and the needs of rebroadcasting the event activities, a camera is usually required to be arranged at a fixed position to realize the multi-angle omnibearing shooting of the video of the event activities, on the basis, in a simulation system for simulating the operation of the event activities, virtual cameras are utilized to respectively shoot virtual images, the virtual cameras are widely distributed, and in the case of ice hockey events, the virtual cameras can be distributed around the ice hockey field for shooting the whole process of the ice hockey game, can also be distributed at the entering position of athletes and the like for shooting the entering process of the athletes.
The recognizing the virtual image captured by each virtual image capturing device may include:
the virtual images captured by the respective virtual cameras are identified by a deep learning algorithm, for example, a Convolutional Neural Network (CNN), which is one of typical algorithms for deep learning (deep learning) and is a type of feed forward Neural network (fed Neural network) including convolution calculation and having a deep structure.
Selecting a target virtual image from the virtual images according to the identification result and the content information of the director video to be produced, wherein the selecting step may include:
and taking the virtual image corresponding to the keyword matched with the content information as the target virtual image. Fig. 2 is a schematic view of a virtual director picture for playing a preview video according to the present invention, and as shown in fig. 2, the virtual camera1 (virtual camera No. 1) to the virtual camera8 (virtual camera No. 8) respectively capture different virtual images, which are respectively marked as C1 to C8.
Wherein, the identification results of C1, C4 to C6 are the ice hockey game, and if the content information of the director video to be produced is the ice hockey game, it is determined that C1, C4 to C6 are the target virtual images.
It should be noted that, the content information of the director video to be produced can be set into an option box for the user to select, so that the design is convenient for the user to select on one hand and is convenient to match with the recognition result on the other hand.
S102: controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image.
Specifically, the device controls the terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image. The terminal may be a terminal used by a participant participating in a pre-performance event, which may be controlled by a server for management of the running of the event.
As shown in fig. 2, one frame image may be randomly cut out from the above-mentioned C1, C4 to C6 as a frame image, as a target virtual image frame image corresponding to C1, C4 to C6, respectively, and displayed as shown in fig. 2.
It should be noted that, in the embodiment of the present invention, the target virtual image is not displayed by default, but the frame image of the target virtual image is displayed, so that system resources consumed by the system can be reduced.
As shown in fig. 2, the other virtual frame images except the target virtual frame image may be padded with fixed images to further reduce system resources consumed by the system.
When the user changes the content information of the director video to be produced, the target virtual image and the corresponding target virtual image frame image are also updated, at the moment, the previous target virtual image frame image is updated to be a fixed image, and the target virtual image frame image corresponding to the updated target virtual image is displayed.
For example, when the user changes the content information of the director video to be produced to the player entry, the updated target virtual videos are C2 and C3, the target virtual frame images corresponding to C1 and C4 to C6 are filled with fixed images, and the target virtual frame images corresponding to C2 and C3 are displayed.
S103: and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
Specifically, the device control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface. The action of selecting the target virtual image frame image may be made by a participant participating in the pre-performance event activity, and may be an action of clicking the target virtual image frame image with a mouse; accordingly, the act of, in response to selecting the target virtual frame image, comprises:
in response to the action that the user clicks the frame image of the target virtual image through the mouse, for example, if it is detected that the user clicks the frame image corresponding to C1, referring to fig. 2, the virtual image corresponding to C1 is launched into the virtual director interface, and the virtual image corresponding to C1 is played in the virtual director interface, so that the user can optionally play the target virtual image.
It is understood that the virtual director interface has a larger area than the preview interface (i.e., the interface corresponding to C1-C8) so as to more clearly display the detailed contents of the selected target virtual image. The event activity can be previewed through the virtual director picture, and after the previewing is passed, the rebroadcast content can be determined according to the content played in the virtual director picture.
According to the method for playing the preview video, provided by the embodiment of the invention, the target virtual image is selected from the virtual images according to the identification result of the virtual image and the content information of the to-be-made preview video, and the target virtual image is selected from the target virtual image frame images to be played in the virtual preview interface, so that the videos shot by all cameras do not need to be played manually one by one, and the efficiency of playing the preview video is improved.
On the basis of the above embodiment, the recognition result includes a keyword representing virtual image content; correspondingly, the selecting a target virtual image from the virtual images according to the identification result and the content information of the director video to be produced includes:
specifically, the device takes a virtual image corresponding to the keyword matched with the content information as the target virtual image. Reference is made to the above description and no further description is made.
According to the method for playing the preview video, provided by the embodiment of the invention, the target virtual image is reasonably selected in a manner of matching the content information with the keywords, so that the efficiency of playing the preview video is further improved.
On the basis of the embodiment, the identification result comprises the position of the person in each frame of image and/or the ratio of the area of the region where the person is located to the area of the frame of image; correspondingly, the method further comprises the following steps:
specifically, the device determines the target virtual image frame image according to the position of the person and/or the ratio. The method specifically comprises the following steps:
selecting a frame image corresponding to the figure position with the shortest distance to the center of the frame image as the target virtual image frame image; taking C1 as an example, the following is illustrated:
once every 30ms, frame images may be acquired, denoted CD1, cd2. It should be noted that, if at least two persons are included in the frame image, the position of the person may be selected as the position of the person corresponding to the person with the largest display area, and the distances between the position of the person and the center of the frame image are denoted as CX1 and cx2.
Or selecting the frame image with the maximum ratio as the target virtual image frame image; referring to the above example, if at least two human figures are included in the frame images, the ratio corresponding to the human figures may be selected as the ratio corresponding to the human figure with the largest display area, and the ratios are respectively designated as CY1 and CY2.
Or determining the target virtual image frame image according to the weight respectively corresponding to the position of the person and the ratio, the distance between the position of the person and the center of the frame image, and the ratio of the area of the region where the person is located to the area of the frame image. For example, the weight corresponding to the position of the person is 0.3, the weight corresponding to the ratio is 0.7, the score corresponding to the distance between the position of the person and the center of the frame image is 10, the score corresponding to 1-3cm is 5, and the score corresponding to 3cm or more is 2.
The ratio of the area of the region where the person is located to the area of the frame image is more than 60%, the corresponding score is 10 points, the corresponding score of 30% -60% is 5 points, and the corresponding score of less than 30% is 2 points.
According to the corresponding relation, the total score corresponding to each frame image of the target virtual image can be calculated, and the frame image with the maximum total score is selected as the frame image of the target virtual image.
For example, the frame image CD5 (e.g., the frame image at the time of 27 msec 2 sec) in C1 has a person positioned closer to the center of the frame image than the other frame images, and the ratio of the area of the region where the person is present to the area of the frame image at this time is also larger than the ratio corresponding to the other frame images, and therefore, the frame image CD5 is taken as the target virtual image frame image.
According to the method for playing the preview video, provided by the embodiment of the invention, the characteristics of each target virtual image can be conveniently distinguished by a user through reasonably determining the frame image of the target virtual image, and the virtual image which can be used as a director video is selected from the target virtual images in a more targeted manner.
On the basis of the above embodiment, after the step of selecting a target virtual image from among the virtual images according to the identification result and the content information of the director video to be produced, the method further includes:
specifically, the device re-identifies the target virtual image and determines the frame image of the target virtual image according to a re-identification result. It should be noted that, compared with the above technical solution of determining the frame image of the target virtual image according to the position and/or ratio of the person in the recognition result, the method for re-recognizing the target virtual image has the advantages that: and performing secondary identification on a small number of virtual images, namely the number of the target virtual images is less than that of all the virtual images.
The disadvantages are that: an additional step of identification is added. In the process of implementing the embodiment of the invention specifically, whether the target virtual image frame image is determined in a secondary identification mode or not can be selected according to the actual situation.
The method for playing the preview video provided by the embodiment of the invention can also determine the target virtual image frame image in a re-identification mode, thereby increasing the applicability of the method.
On the basis of the embodiment, the re-identification result comprises the position of the person in each frame of image and/or the ratio of the area of the region where the person is located to the area of the frame of image; correspondingly, the determining the target virtual image frame image according to the re-recognition result includes:
specifically, the device determines the target virtual image frame image according to the position of the person and/or the ratio. For the above description, reference may be made to the related embodiment that the recognition result includes the position of the person in each frame of image and/or the ratio of the area of the region where the person is located to the area of the frame of image, and details are not repeated.
According to the method for playing the preview video, provided by the embodiment of the invention, the characteristics of each target virtual image can be conveniently distinguished by a user through reasonably determining the frame image of the target virtual image, and the virtual image which can be used as a director video is selected from the target virtual images in a more targeted manner.
On the basis of the above embodiment, the determining the target virtual image frame image according to the position of the person and/or the ratio includes:
specifically, the device selects a frame image corresponding to a figure position with the shortest distance from the center of the frame image as the target virtual image frame image; reference is made to the above description and no further description is made.
Or, specifically, the device selects the frame image with the largest ratio as the target virtual image frame image; reference is made to the above description and no further description is made.
Or, specifically, the device determines the target virtual image frame image according to the weight corresponding to the position of the person and the ratio, the distance between the position of the person and the center of the frame image, and the ratio between the area of the region where the person is located and the area of the frame image. Reference is made to the above description and no further description is made.
The method for playing the preview video provided by the embodiment of the invention further reasonably determines the frame images of the target virtual images, can facilitate the user to distinguish the characteristics of each target virtual image, and more pointedly selects the virtual image which can be used as the director video from the target virtual images.
In addition to the above embodiments, the recognizing the virtual image captured by each virtual camera includes:
specifically, the device identifies the virtual images respectively shot by the virtual shooting devices by using a deep learning algorithm. Reference is made to the above description and no further description is made.
The method for playing the preview video provided by the embodiment of the invention can further accurately and conveniently identify the virtual image, and ensure the execution efficiency and effect of the method.
Fig. 3 is a schematic structural diagram of an embodiment of a device for playing a preview video according to the present invention, and as shown in fig. 3, an embodiment of the present invention provides a device for playing a preview video, which includes a selecting unit 301, a displaying unit 302, and a playing unit 303, where:
the selecting unit 301 is configured to identify virtual images respectively captured by the virtual cameras, and select a target virtual image from the virtual images according to an identification result and content information of a director video to be produced; the display unit 302 is used for controlling the terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image; the playing unit 303 is configured to control the terminal to launch a selected target virtual image corresponding to the selected target virtual image frame image into a virtual director interface in response to an action of selecting the target virtual image frame image, and play the selected target virtual image in the virtual director interface.
Specifically, the selecting unit 301 is configured to identify virtual images respectively captured by each virtual camera, and select a target virtual image from the virtual images according to an identification result and content information of a director video to be produced; the display unit 302 is used for controlling the terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image; the playing unit 303 is configured to control the terminal to launch a selected target virtual image corresponding to the selected target virtual image frame image into a virtual director interface in response to an action of selecting the target virtual image frame image, and play the selected target virtual image in the virtual director interface.
According to the device for playing the preview video, provided by the embodiment of the invention, the target virtual image is selected from the virtual images according to the identification result of the virtual image and the content information of the to-be-made preview video, and the target virtual image is selected from the target virtual image frame images to be played in the virtual preview interface, so that the videos shot by all cameras do not need to be played manually one by one, and the efficiency of playing the preview video is improved.
The apparatus for playing a preview video according to the embodiment of the present invention may be specifically configured to execute the processing flows of the above method embodiments, and the functions of the apparatus are not described herein again, and refer to the detailed description of the above method embodiments.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 4, the electronic device includes: a processor (processor)401, a memory (memory)402, and a bus 403;
the processor 401 and the memory 402 complete communication with each other through a bus 403;
the processor 401 is configured to call the program instructions in the memory 402 to execute the methods provided by the above-mentioned method embodiments, for example, including: identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video; controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image; and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
The present embodiment discloses a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the method provided by the above-mentioned method embodiments, for example, comprising: identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video; controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image; and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the above method embodiments, for example, including: identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video; controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image; and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of playing a preview video, comprising:
identifying the virtual images respectively shot by each virtual shooting device, and selecting a target virtual image from each virtual image according to an identification result and content information of a to-be-produced director video;
controlling a terminal to display a target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image;
and the control terminal responds to the action of selecting the target virtual image frame image, puts the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and plays the selected target virtual image in the virtual program guide interface.
2. The method of claim 1, wherein the recognition result comprises a keyword representing virtual image content; correspondingly, the selecting a target virtual image from the virtual images according to the identification result and the content information of the director video to be produced includes:
and taking the virtual image corresponding to the keyword matched with the content information as the target virtual image.
3. The method according to claim 1 or 2, wherein the recognition result comprises the position of the person in each frame image and/or the ratio of the area of the region where the person is located to the area of the frame image; correspondingly, the method further comprises the following steps:
and determining the target virtual image frame image according to the position of the person and/or the ratio.
4. The method according to claim 1 or 2, wherein after the step of selecting the target virtual image from the virtual images according to the identification result and the content information of the director video to be produced, the method further comprises:
and re-identifying the target virtual image, and determining the frame image of the target virtual image according to a re-identification result.
5. The method of claim 4, wherein the re-recognition result comprises the position of the person in each frame of image, and/or the ratio of the area of the region where the person is located to the area of the frame of image; correspondingly, the determining the target virtual image frame image according to the re-recognition result includes:
and determining the target virtual image frame image according to the position of the person and/or the ratio.
6. The method of claim 5, wherein said determining the target virtual image frame image according to the position of the person and/or the ratio comprises:
selecting a frame image corresponding to the figure position with the shortest distance to the center of the frame image as the target virtual image frame image;
or selecting the frame image with the maximum ratio as the target virtual image frame image;
or determining the target virtual image frame image according to the weight respectively corresponding to the position of the person and the ratio, the distance between the position of the person and the center of the frame image, and the ratio of the area of the region where the person is located to the area of the frame image.
7. The method according to claim 1 or 2, wherein the identifying the virtual image captured by each virtual camera comprises:
and identifying the virtual images respectively shot by the virtual shooting devices by utilizing a deep learning algorithm.
8. An apparatus for playing a preview video, comprising:
the selection unit is used for identifying the virtual images respectively shot by the virtual shooting devices and selecting a target virtual image from the virtual images according to the identification result and the content information of the director video to be produced;
the display unit is used for controlling the terminal to display the target virtual image frame image; wherein the target virtual image frame image is captured from the target virtual image;
and the playing unit is used for controlling the terminal to respond to the action of selecting the target virtual image frame image, launching the selected target virtual image corresponding to the selected target virtual image frame image into a virtual program guide interface, and playing the selected target virtual image in the virtual program guide interface.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1 to 7 are implemented when the computer program is executed by the processor.
10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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Application publication date: 20210629 |