CN109120984B - Barrage display method and device, terminal and server - Google Patents
Barrage display method and device, terminal and server Download PDFInfo
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- CN109120984B CN109120984B CN201811165393.6A CN201811165393A CN109120984B CN 109120984 B CN109120984 B CN 109120984B CN 201811165393 A CN201811165393 A CN 201811165393A CN 109120984 B CN109120984 B CN 109120984B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4314—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
Abstract
The embodiment of the invention discloses a bullet screen display method, a bullet screen display device, a terminal and a server, wherein the method comprises the following steps: acquiring a display area corresponding to a target image included in a current playing frame in a display picture, wherein the target image includes a face image; determining display areas corresponding to all barrages displayed in the current playing frame; and determining a target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image from all the bullet screens, reducing the display transparency of the target bullet screen in the display picture, and avoiding the occlusion of the face image in the video picture, thereby improving the viewing experience of the user.
Description
Technical Field
The invention relates to the technical field of internet finance, in particular to a barrage display method, a barrage display device, a terminal and a server.
Background
The barrage refers to commenting subtitles popped up in the video playing process, is similar to the interline batch of novels, and is used for increasing the film watching interaction among film watching users and enhancing the film watching fun.
At present, the user can input the barrage at any time when playing video file, publishes the opinion to this broadcast video to the accessible exports the barrage in the display screen, increases the user and watches the interactive enjoyment of in-process and other users at the video, but if the barrage of exporting when playing video in the display screen is too much, can lead to video image to be sheltered from, thereby influences user's watching experience.
Disclosure of Invention
The embodiment of the invention provides a bullet screen display method, a bullet screen display device, a terminal and a server, which can avoid the occlusion of a face image in a video picture, thereby improving the viewing experience of a user.
In a first aspect, an embodiment of the present invention provides a bullet screen display method, where the method includes:
acquiring a display area corresponding to a target image included in a current playing frame in a display picture, wherein the target image includes a face image;
determining display areas corresponding to all barrages displayed in the current playing frame;
and determining a target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image from all the bullet screens, and reducing the display transparency of the target bullet screen in the display picture.
In one embodiment, the obtaining of the display area corresponding to the target image included in the currently played frame includes:
sending a request for acquiring a JS file of the script to a server;
receiving a JS file sent by the server in response to the JS file acquisition request, wherein the JS file comprises a display area corresponding to a target image in each playing frame arranged according to playing time;
and acquiring a display area corresponding to the target image included in the current playing frame from the JS file.
In one embodiment, the determining the display areas corresponding to all of the barrages displayed in the current playing frame includes:
acquiring all barrages displayed in the current playing frame;
determining a bullet screen frame where each bullet screen in all the bullet screens is located, and acquiring coordinate information of the bullet screen frame in the display picture;
and determining the display area corresponding to each bullet screen according to the coordinate information, so that the display areas corresponding to all bullet screens displayed in the current playing frame can be determined.
In one embodiment, after the reducing the display transparency of the target barrage in the current playing frame, the method further includes:
and when the fact that no overlapping area exists between the display area corresponding to the target bullet screen and the display area corresponding to the target image is detected, restoring the display transparency of the target bullet screen in the display picture.
In a second aspect, another embodiment of the present invention provides a bullet screen display method, including:
determining a display area corresponding to a target image included in each playing frame in a video;
generating a script JS file in the display area corresponding to the target image in each playing frame according to the playing time;
receiving a JS file acquisition request sent by a terminal, and responding the JS file acquisition request to the terminal sends the JS file, so that the terminal is followed after acquiring a display area corresponding to a target image included by a current playing frame in a display picture in the JS file, reducing a target bullet screen to be in display transparency in the display picture, the display area corresponding to the target bullet screen and an overlapping area exist between the display areas corresponding to the target image.
In one embodiment, before determining a display area corresponding to a target image included in each playing frame in a video, the method further includes:
capturing a playing frame in the video according to a preset frequency;
and carrying out face recognition on each captured playing frame to obtain a target image in each playing frame, wherein the target image comprises a face image.
In one embodiment, the determining a display area corresponding to a target image included in each playing frame in the video includes:
determining an image frame where a target image in each playing frame in a video is located, and acquiring coordinate information of the image frame;
and determining a display area corresponding to the target image in each playing frame according to the coordinate information.
In a third aspect, an embodiment of the present invention provides a bullet screen display device, including:
the device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a display area corresponding to a target image included in a current playing frame in a display picture, and the target image includes a face image;
the determining unit is used for determining display areas corresponding to all barrages displayed in the current playing frame;
the determining unit is further configured to determine, from all of the bullet screens, a target bullet screen in which an overlapping area exists between the corresponding display area and the display area corresponding to the target image;
and the reducing unit is used for reducing the display transparency of the target bullet screen in the display picture.
In an embodiment, the obtaining unit is specifically configured to:
sending a request for acquiring a JS file of the script to a server;
receiving a JS file sent by the server in response to the JS file acquisition request, wherein the JS file comprises a display area corresponding to a target image in each playing frame arranged according to playing time;
and acquiring a display area corresponding to the target image included in the current playing frame from the JS file.
In an embodiment, the determining unit is specifically configured to:
acquiring all barrages displayed in the current playing frame;
determining a bullet screen frame where each bullet screen in all the bullet screens is located, and acquiring coordinate information of the bullet screen frame in the display picture;
and determining the display area corresponding to each bullet screen according to the coordinate information, so that the display areas corresponding to all bullet screens displayed in the current playing frame can be determined.
In one embodiment, the apparatus further comprises: and a recovery unit.
And the restoring unit is used for restoring the display transparency of the target bullet screen in the display picture when detecting that no overlapping area exists between the display area corresponding to the target bullet screen and the display area corresponding to the target image.
In a fourth aspect, another embodiment of the present invention provides a bullet screen display device, including:
the determining unit is used for determining a display area corresponding to a target image included in each playing frame in the video;
the generating unit is used for generating a script JS file in the display area corresponding to the target image in each playing frame according to the playing time;
the response unit is used for receiving a JS file acquisition request sent by the terminal and responding to the JS file acquisition request to the terminal sends the JS file, so that the terminal is followed after acquiring a display area corresponding to a target image included by a current playing frame in a display picture in the JS file, the display transparency in the display picture is reduced, and the display area corresponding to the target bullet screen and the display area corresponding to the target image have an overlapping area therebetween.
In one embodiment, the apparatus further comprises: the device comprises a grabbing unit and an identification unit.
The capturing unit is used for capturing the playing frames in the video according to the preset frequency;
the recognition unit is used for carrying out face recognition on each captured playing frame to obtain a target image in each playing frame, and the target image comprises a face image.
In an embodiment, the determining unit is specifically configured to:
determining an image frame where a target image in each playing frame in a video is located, and acquiring coordinate information of the image frame;
and determining a display area corresponding to the target image in each playing frame according to the coordinate information.
In a fifth aspect, an embodiment of the present invention provides another terminal, which includes a processor, an input device, an output device, and a memory, where the processor, the input device, the output device, and the memory are connected to each other, where the memory is used to store a computer program that supports the terminal to execute the foregoing method, and the computer program includes program instructions, and the processor is configured to call the program instructions to execute the foregoing method according to the first aspect.
In a sixth aspect, an embodiment of the present invention provides a server, including a processor and a storage device, where the processor and the storage device are connected to each other, where the storage device is used to store computer program instructions, and the processor is configured to execute the program instructions, so as to implement the above-mentioned transaction channel routing method.
In a seventh aspect, an embodiment of the present invention provides a computer storage medium, where a first computer program instruction is stored in the computer storage medium, and when executed by a processor, the first computer program instruction is configured to execute the bullet screen display method according to the first aspect; alternatively, the computer storage medium stores therein second computer program instructions, which when executed by the processor, are configured to perform the bullet screen display method according to the second aspect.
In the embodiment of the invention, the terminal obtains the display area corresponding to the target image included in the current playing frame in the display picture and the display areas corresponding to all displayed bullet screens, so that the target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image can be determined from all bullet screens, the display transparency of the target bullet screen in the display picture is reduced, the bullet screen is prevented from shielding the face image (namely the target image) in the face picture in the current playing frame, and the viewing experience of a user is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a bullet screen display method according to an embodiment of the present invention;
fig. 2a is a schematic diagram of a currently playing frame according to an embodiment of the present invention;
FIG. 2b is a diagram of a currently playing frame according to another embodiment of the present invention;
FIG. 2c is a diagram of a currently playing frame according to another embodiment of the present invention;
fig. 3 is a schematic flowchart of a bullet screen display method according to another embodiment of the present invention;
fig. 4 is a schematic flowchart of a bullet screen display method according to another embodiment of the present invention;
fig. 5 is a schematic block diagram of a bullet screen display device according to an embodiment of the present invention;
fig. 6 is a schematic block diagram of a bullet screen display device according to another embodiment of the present invention;
fig. 7 is a schematic block diagram of a terminal according to an embodiment of the present invention;
fig. 8 is a schematic block diagram of a server according to an embodiment of the present invention.
Detailed Description
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, 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.
At present, input barrage publishes own understanding to the broadcast video when watching the video, can strengthen the sight movie interaction between the user to promote user's sight movie experience, because play all users in the video display screen to the barrage of present broadcast content, consequently, probably there is the barrage in the display screen too much, and shelters from the problem of broadcast picture, when the barrage sheltered from the personage's image in the display screen, can seriously disturb user's sight movie experience, lead to seeing the movie effect not good.
Based on this, an embodiment of the present invention provides a bullet screen display method, which mainly obtains coordinates of a target area (the target area may be a square frame area) in a video file through a target recognition technology (e.g., a face recognition technology) adopted by a server, and stores coordinate information of the square frame area in a database and generates a time sequence JS file to be transmitted to a playing end (e.g., an intelligent terminal, etc.), so that after the playing end obtains the coordinates of the bullet screen square frame area, when the face square frame area collides with the bullet screen square frame area, the transparency of the bullet screen area is reduced, so that the target area is not blocked by the bullet screen, thereby improving the viewing experience of viewers, wherein the target area may be a face area or a face area of an animal.
In one embodiment, the face recognition technology is a biometric technology for identity recognition based on facial feature information, and is a series of related technologies, generally called a portrait recognition technology or a facial recognition technology, for automatically detecting and tracking a face in an image by acquiring the image or video containing the face.
When a server acquires coordinates of a target area in a video file by adopting a target identification technology, firstly, a target box area in the video file is identified based on a face identification technology, and the target box area is an area comprising a face image. In an embodiment, the server may capture each frame of image from the played video file based on a face recognition technique, and calculate a target coordinate corresponding to each frame of image, where the target coordinate is a coordinate corresponding to the target frame region, so that the corresponding target frame region may be determined by determining the target coordinate, and further, a script (javascript, JS) of a time sequence may be generated according to the target coordinate. In the embodiment of the present invention, when a video file is captured to obtain each frame of image, the image can be captured once every 0.1 second, and also once every 0.5 second.
In one embodiment, the yolo v3 algorithm may be used to calculate the target coordinates of each frame of image, and when calculating the target coordinates, the target coordinates of each frame of image may be calculated based on a loc (location) -type coordinate system, so that the target coordinates of each frame of image and the timestamp correspondence of each frame of image corresponding to the playing of the video file may be bound as a time object, and so on, the time object of each frame of image in the playing of the video file may be obtained, and then all the time objects may be stored in the database, and the JS file may be generated.
After the JS file of the video file is generated, the backend server may establish HTTP communication connection with the terminal, so that the terminal may invoke the JS file when playing the video, and thus obtain a display area corresponding to a target Object (such as a face image) included in a currently played frame in a display screen from the JS file, in an embodiment, the display area corresponding to the target Object may be identified by using a first coordinate area, further, the terminal may use a Document Object Model (DOM) element of a web page as a carrier of a bullet screen in the currently played frame, and may determine the display area corresponding to the bullet screen by detecting coordinates of the carrier at intervals, for example, the display area of the bullet screen carrier may be detected every 0.1 second, and similarly, the display area corresponding to the bullet screen may be identified by using a second coordinate area.
After determining a first coordinate region of a target object in a current playing frame and a second coordinate region of a bullet screen displayed by the current playing frame, a terminal may coincide the first coordinate region and the second coordinate region, and when there is an overlapping region between the first coordinate region and the second coordinate region, reduce display transparency of the bullet screen, where the larger the display transparency is, the better the presentation degree of the bullet screen is, for example, when the transparency is 100%, the bullet screen is completely displayed, and when the transparency is 0%, the bullet screen is completely hidden.
In one embodiment, the first coordinate area and the second coordinate area may be overlapped at preset time intervals, and when there is an overlapping area between the first coordinate area and the second coordinate area, the display transparency of the bullet screen to be reduced may be determined according to an overlapping degree of the overlapping area, for example, when the overlapping area between the first coordinate area and the second coordinate area is large, the display transparency of the bullet screen may be directly reduced to 0%. After the display transparency of the bullet screen is modified, if the first coordinate area and the second coordinate area are detected to have no overlapping area after a certain time interval, the display transparency of the bullet screen is restored. The display transparency of the bullet screen refers to the display depth of the characters in the bullet screen.
Referring to fig. 1, a schematic flow chart of a bullet screen display method according to an embodiment of the present invention is shown, and as shown in fig. 1, the method may include:
s101, the terminal acquires a display area corresponding to a target image included in a current playing frame in a display picture, wherein the target image includes a face image.
In one embodiment, the currently playing frame is a playing frame of a currently playing video of a display screen, and a target image including a face image in the currently playing frame (i.e., a currently playing image) is taken as the currently playing frame, where the face image includes a face image of a person and/or a face image of an animal, and a display area of the face image in the playing image is a display area corresponding to the target image. When the terminal acquires the display area corresponding to the target image, the specific execution steps are as follows:
s11, sending a request for obtaining the JS file of the script to the server;
s12, receiving a JS file sent by the server in response to the JS file acquisition request, the JS file including a display area corresponding to the target image in each play frame arranged according to the play time;
s13, obtaining the display area corresponding to the target image included in the current playing frame from the JS file.
The terminal and the server can establish communication connection based on a hypertext Transfer Protocol (HTTP) in advance, so that when the terminal detects that a video file is played in a display picture, an acquisition request of a JS file script is sent to the server based on the HTTP connection, wherein the server is a source server of the video file played by the terminal, and the JS file is a JS file corresponding to the played video file, and the JS file corresponding to the played video file needs to be called when the terminal plays the video file each time, so that when the terminal detects a play request for the video file from a user, the JS file of the video file requested to be played can be automatically sent to the server.
In one embodiment, any JS file includes a display area corresponding to the target image of each play frame (i.e., play image) arranged according to the play time, that is, the position of the target image of each play image in the JS file in the display screen arranged according to the time sequence can be identified by the first coordinate area of the target image in the display screen, in one embodiment, the JS files can be arranged according to the ascending time sequence, and also can be arranged according to the descending time sequence, and in the embodiment of the present invention, the display area corresponding to the target image in each play frame at present is mainly arranged according to the ascending time sequence in the JS file.
When the terminal sends a JS file acquisition request to the server, the unique identification mark of the currently played video can be included in the acquisition request, so that when the server responds to the acquisition request, the JS file which is acquired by the terminal request and corresponds to the currently played video in the terminal can be searched from the stored JS files corresponding to different videos according to the unique identification mark, the JS file matched with the currently played video can be received by the terminal, and a display area corresponding to a target image included in a currently played frame in a display picture can be acquired from the JS file corresponding to the currently played video. In an embodiment, when the terminal acquires the display area corresponding to the target image included in the current play frame from the JS file, the terminal may determine a timestamp corresponding to the current play frame, and find the display area corresponding to the target image included in the current play frame from the JS file based on the timestamp.
S102, the terminal determines display areas corresponding to all the barrages displayed in the current playing frame.
When the terminal determines the display areas corresponding to all the barrages displayed in the current playing frame, the specific executable steps are as follows:
s21, acquiring all barrages displayed in the current playing frame;
s22, determining the bullet screen frame where each bullet screen is located in all the bullet screens, and acquiring the coordinate information of the bullet screen frame in the display picture;
s23, determining the display area corresponding to each bullet screen according to the coordinate information, so as to determine the display areas corresponding to all bullet screens displayed in the current playing frame.
In steps s 21-s 23, the terminal may preset the shape of the bullet screen frame where all the bullet screens displayed in the playing frame are located, for example, the terminal may use the web page DOM element as the bullet screen carrier, that is, the shape of the bullet screen frame of all the bullet screens in the playing frame is preset to be square. A calculation coordinate system for calculating the coordinate information of the screen frame on the display screen (i.e., a coordinate origin and a coordinate axis for determining the coordinate information of the screen frame) may be preset. The calculation coordinate system set by the terminal and the coordinate system in which the display area corresponding to the target image stored in the server is located are completely overlapped, that is, the origin of coordinates, the coordinate axes and the coordinate ratios in the calculation coordinate system are completely overlapped with the origin of coordinates, the coordinate axes and the coordinate ratios of the coordinate system adopted when the display area corresponding to the target object is determined in the server.
When the terminal uses the webpage DOM element as the bullet screen carrier, the bullet screen square frame where each bullet screen is located in all the bullet screens can be determined, and the coordinate points of the four vertexes of the bullet screen square frame in the coordinate system corresponding to the display picture are obtained, so that the coordinate area of the four determined vertexes of the bullet screen square frame in the coordinate system in the city is used as the display area corresponding to each bullet screen. In other embodiments, if it is determined that the bullet screen frame in which each of all the bullet screens is located is the bullet screen oval frame, the edge coordinates of the bullet screen oval frame are obtained, and the coordinate area of the encircled area of the edge coordinates in the coordinate system is used as the display area corresponding to the bullet screen. In one embodiment, the second coordinate region may be used to identify a display region corresponding to any bullet screen in the currently played frame.
It should be noted that step S101 and step S102 do not have a necessary execution sequence, and step S101 may be executed first, or step S102 may also be executed first, which is not limited in the embodiment of the present invention.
And S103, the terminal determines a target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image from all bullet screens, and reduces the display transparency of the target bullet screen in the display picture.
After the display areas of all the bullet screens in the display image are determined, the display areas corresponding to all the bullet screens can be compared with the display areas corresponding to the target image, and the bullet screens with the display areas corresponding to the display areas and the target image having the overlapping areas are determined as the target bullet screens.
In one embodiment, if the terminal uses the first coordinate region to identify the display region corresponding to the target object in the current playing frame, the terminal uses the second coordinate region to identify the display region corresponding to the bullet screen frame where any bullet screen in the current playing frame is located. If the current playing frame (i.e. the current playing image) is as shown in fig. 2a, the display area corresponding to the face image is identified by the first coordinate area 21, and if the display areas corresponding to all of the bullet screens are compared with the display area corresponding to the target image, it is determined that an overlapping area exists between the display area corresponding to the target bullet screen identified by the second coordinate area 22 and the display area corresponding to the target image, the display transparency of the target bullet screen in the display screen is reduced, and the reduced current playing frame in the display screen can be as shown in fig. 2 b.
After the display transparency of the target bullet screen in the current playing frame is reduced, when the fact that no overlapping area exists between the display area corresponding to the target bullet screen and the display area corresponding to the target image is detected, the display transparency of the target bullet screen in the display picture is recovered. In an embodiment, the bullet screen moves along with the playing of the video, so that after a certain time interval, whether an overlapping area still exists between the display area corresponding to the target bullet screen and the display area corresponding to the target image can be detected again, and when the overlapping area does not exist, the display transparency of the target bullet screen in the display screen is recovered. For example, as shown in fig. 2c, after a certain time interval, if it is detected again that there is no overlapping area between the display area 22 of the target bullet screen and the display area 21 of the target image, the display transparency of the target bullet screen in the display screen is restored.
In one embodiment, when the transparency of the bullet screen of the terminal is 100%, the bullet screen is completely displayed, and when the transparency is 0%, the bullet screen is completely hidden, and when the display transparency of the bullet screen is reduced, the display transparency of the bullet screen is reduced according to the size of the overlapping area between the display area of the target bullet screen and the display area of the target image, and when the area is larger, the transparent display degree of the bullet screen is reduced more, and when the display area of the target bullet screen and the display area of the target image have an overlapping area, the display transparency of the bullet screen with the same value can be reduced, for example, the display transparency of the bullet screen is reduced by 20%.
In the embodiment of the invention, the terminal obtains the display area corresponding to the target image included in the current playing frame in the display picture and the display areas corresponding to all displayed bullet screens, so that the target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image can be determined from all bullet screens, the display transparency of the target bullet screen in the display picture is reduced, the bullet screen is prevented from shielding the face image (namely the target image) in the current playing frame, and the viewing experience of a user is improved.
Referring to fig. 3, a bullet screen display method according to another embodiment of the present invention is a flow chart, and as shown in fig. 3, the method may include:
s301, the server determines a display area corresponding to a target image included in each playing frame in the video.
Before obtaining a display area corresponding to a target image included in each playing frame, the server may capture the playing frame in the video according to a preset frequency, and in one embodiment, each playing frame (i.e., a playing image) may be captured from the video based on a speed at which the video plays each frame, so that face recognition may be performed on each captured playing frame, where the server may perform face recognition on each captured playing frame according to a facial contour feature to obtain the target image in each playing frame, where the target image includes a face image.
In an embodiment, after capturing a plurality of play frames from a video, a display area corresponding to a target image in each play frame may be determined based on an image frame in which the target image is located, which specifically includes: coordinate information of the image frame is obtained first, so that a display area corresponding to the target object can be determined according to the coordinates. The server may pre-define an image frame of the target image and calculate a coordinate system of the coordinate information of the image frame, where the image frame of the target image pre-defined by the server may be the image frame, and a display area corresponding to the target object may be determined by obtaining vertex coordinates of the image frame, where the display area is a first coordinate area surrounded by the vertex coordinates of the image frame. In other embodiments, the server may also pre-define the image frame in which the target image is located as a circle or an ellipse.
The server may store the display area after determining the display area corresponding to the target object included in each play frame, and in one embodiment, the server may store the display area by storing a coordinate point of a first coordinate area corresponding to the display area, for example, storing each vertex coordinate in the first coordinate area, storing the first coordinate area (that is, the display area), and when storing each fixed point coordinate, storing the fixed point coordinates in an array manner.
And S302, generating a script JS file by the server according to the display area corresponding to the target image in each playing frame according to the playing time.
In one embodiment, the playing timestamp of each playing frame and the display area corresponding to the target object included in the playing frame can be stored in association as an associated object, and the associated object is stored in the script JS file, so that the terminal can access the JS file or the display area corresponding to the current playing frame.
And S303, the server receives the JS file acquisition request sent by the terminal, and sends the JS file to the terminal in response to the JS file acquisition request.
In an embodiment, after the server responds to the JS file, the terminal may obtain, from the JS file, a display area corresponding to a target image included in a currently playing frame in the display screen, and after the terminal determines display areas corresponding to all of the bullet screens, reduce the display transparency of the target bullet screen whose display area has an overlapping area with the display area corresponding to the target image, thereby avoiding the bullet screen from blocking the target image (such as the above-mentioned face image) in the playing image of the terminal.
In the embodiment of the invention, the server can determine the display area corresponding to the target image included in each playing frame in the video, generate the script JS file in the display area corresponding to the target image in each playing frame according to the playing time, and when receiving the JS file acquisition request sent by the terminal, respond to the acquisition request and send the corresponding JS file to the terminal, so that the terminal can acquire the display area corresponding to the target image included in the current playing frame stored in the JS file, and reduce the display transparency of the target bullet screen in the display picture, which has an overlapping area with the display area corresponding to the target image, thereby avoiding the video image from being blocked, and improving the viewing experience of the user.
Referring to fig. 4, a bullet screen display method according to another embodiment of the present invention is a flow chart, and as shown in fig. 4, the method may include:
s401, the server determines a display area corresponding to a target image included in each playing frame in the video.
S402, the server generates a script JS file according to the display area corresponding to the target image in each playing frame according to the playing time.
S403, the terminal sends a request for obtaining the JS file script to the server.
S404, the terminal receives the JS file sent by the server in response to the JS file acquisition request, where the JS file includes the display area corresponding to the target image in each play frame arranged according to the play time.
S405, the terminal acquires, from the JS file, a display area corresponding to the target image included in the currently played frame.
S406, the terminal determines display areas corresponding to all the barrages displayed in the current playing frame.
And S407, the terminal determines a target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image from all bullet screens, and reduces the display transparency of the target bullet screen in the display picture.
In steps S401 to S407, in order to reduce the processing load of the terminal processor, thereby improving the processing efficiency of the terminal server, the server may first calculate a display area corresponding to the target image included in each play frame in the video, and store the display area in the script JS file, so that when the terminal can play the video again, the display area corresponding to the target image included in the current play frame is directly obtained by obtaining the JS file, and the display area of the target image calculated by the processor does not need to be occupied, thereby reducing the calculation load of the terminal processor.
When the terminal acquires the display area corresponding to the target image, the display area corresponding to all the barrages in the current playing frame can be calculated by the calling processor, so that the display transparency of the target barrages overlapped with the display area corresponding to the target object is reduced, and the viewing experience of a user is improved.
In the embodiment of the invention, the server calculates and stores the display area corresponding to the target image included in each play frame in advance, and when the video is played in the display picture of the terminal, the display area corresponding to the target image included in the current play frame can be obtained by sending the JS file obtaining request, so that after the display areas corresponding to all the display barrages in the current play frame are obtained through further calculation, the display transparency of the target barrages overlapped with the display areas corresponding to the target images is reduced, the terminal can avoid the shielding of the video images while carrying out less calculation, and the use satisfaction degree of users can be improved.
The embodiment of the invention also provides a bullet screen display device, which is used for executing the units of the method shown in the figure 1. Specifically, referring to fig. 5, a schematic block diagram of a bullet screen display device according to an embodiment of the present invention is shown. The device of the embodiment comprises: an acquisition unit 501, a determination unit 502, and a reduction unit 503.
An obtaining unit 501, configured to obtain a display area corresponding to a target image included in a currently playing frame in a display screen, where the target image includes a face image;
a determining unit 502, configured to determine display areas corresponding to all barrages displayed in the current playing frame;
the determining unit 502 is further configured to determine, from all the bullet screens, a target bullet screen in which an overlapping area exists between the corresponding display area and the display area corresponding to the target image;
a reducing unit 503, configured to reduce a display transparency of the target bullet screen in the display screen.
In an embodiment, the obtaining unit 501 is specifically configured to:
sending a request for acquiring a JS file of the script to a server;
receiving a JS file sent by the server in response to the JS file acquisition request, wherein the JS file comprises a display area corresponding to a target image in each playing frame arranged according to playing time;
and acquiring a display area corresponding to the target image included in the current playing frame from the JS file.
In an embodiment, the determining unit 502 is specifically configured to:
acquiring all barrages displayed in the current playing frame;
determining a bullet screen frame where each bullet screen in all the bullet screens is located, and acquiring coordinate information of the bullet screen frame in the display picture;
and determining the display area corresponding to each bullet screen according to the coordinate information, so that the display areas corresponding to all bullet screens displayed in the current playing frame can be determined.
In one embodiment, the apparatus further comprises: a recovery unit 504.
A restoring unit 504, configured to restore a display transparency of the target bullet screen in the display screen when it is detected that there is no overlapping area between the display area corresponding to the target bullet screen and the display area corresponding to the target image.
In the embodiment of the present invention, the obtaining unit 501 obtains the display area corresponding to the target image included in the current playing frame in the display screen and the display areas corresponding to all displayed bullet screens, so that the determining unit 602 can determine, from all bullet screens, a target bullet screen in which an overlapping area exists between the corresponding display area and the display area corresponding to the target image, so that the reducing unit 503 reduces the display transparency of the target bullet screen in the display screen, avoids the bullet screen from blocking the face image (i.e., the target image) in the current playing frame, and improves the viewing experience of the user.
Another embodiment of the present invention also provides a bullet screen display device for performing the units of the method as described in fig. 3. Specifically, referring to fig. 6, a schematic block diagram of a bullet screen display device according to an embodiment of the present invention is shown. The device of the embodiment comprises: a determining unit 601, a generating unit 602 and a responding unit 603.
A determining unit 601, configured to determine a display area corresponding to a target image included in each play frame in a video;
a generating unit 602, configured to generate a script JS file for a display area corresponding to the target image in each playing frame according to the playing time;
In one embodiment, the apparatus further comprises: a grabbing unit 604 and a recognition unit 605.
A capturing unit 604, configured to capture a playing frame in a video according to a preset frequency;
a recognition unit 605, configured to perform face recognition on each captured play frame to obtain a target image in each play frame, where the target image includes a face image.
In an embodiment, the determining unit 601 is specifically configured to:
determining an image frame where a target image in each playing frame in a video is located, and acquiring coordinate information of the image frame;
and determining a display area corresponding to the target image in each playing frame according to the coordinate information.
In the embodiment of the present invention, the determining unit 601 may determine a display area corresponding to a target image included in each play frame in a video, the generating unit 602 generates a script JS file in the display area corresponding to the target image in each play frame according to play time, and when receiving a JS file acquisition request sent by a terminal, the responding unit 603 responds to the acquisition request and sends the corresponding JS file to the terminal, so that the terminal can acquire the display area corresponding to the target image included in a currently played frame stored in the JS file, and reduce the display transparency of a target bullet screen in a display screen, where the target bullet screen has an overlapping area with the display area corresponding to the target image, and thus avoid the video image being blocked, thereby improving the viewing experience of a user.
Fig. 7 is a schematic block diagram of a terminal according to an embodiment of the present invention. The terminal in this embodiment as shown in the figure may include: one or more processors 701; one or more input devices 702, one or more output devices 703, and memory 704. The processor 701, the input device 702, the output device 703, and the memory 704 are connected by a bus 705. The memory 702 is used to store a computer program comprising program instructions, and the processor 701 is used to execute the program instructions stored by the memory 702. Wherein, the processor 701 is configured to call the program instruction to execute:
acquiring a display area corresponding to a target image included in a current playing frame in a display picture, wherein the target image includes a face image;
determining display areas corresponding to all barrages displayed in the current playing frame;
and determining a target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image from all the bullet screens, and reducing the display transparency of the target bullet screen in the display picture.
In one embodiment, the processor 701 is further configured to invoke the program instructions to perform:
sending a request for acquiring a JS file of the script to a server;
receiving a JS file sent by the server in response to the JS file acquisition request, wherein the JS file comprises a display area corresponding to a target image in each playing frame arranged according to playing time;
and acquiring a display area corresponding to the target image included in the current playing frame from the JS file.
In one embodiment, the processor 701 is further configured to invoke the program instructions to perform:
acquiring all barrages displayed in the current playing frame;
determining a bullet screen frame where each bullet screen in all the bullet screens is located, and acquiring coordinate information of the bullet screen frame in the display picture;
and determining the display area corresponding to each bullet screen according to the coordinate information, so that the display areas corresponding to all bullet screens displayed in the current playing frame can be determined.
In one embodiment, the processor 701 is further configured to invoke the program instructions to perform:
and when the fact that no overlapping area exists between the display area corresponding to the target bullet screen and the display area corresponding to the target image is detected, restoring the display transparency of the target bullet screen in the display picture.
Referring to fig. 8, a schematic block diagram of a server according to an embodiment of the present invention is shown. The server in this embodiment as shown in the figure may include: power supplies, housings, various required interfaces, etc., such as network interfaces, user interfaces, etc. The server further comprises: one or more processors 801 and a memory device 802. The processor 801 is coupled to the memory device 802. in one embodiment, the processor 801 and the memory device 802 may be coupled via a bus 803.
The server may include a user interface, the user interface may include an interface module formed by some physical keys or touch keys, and the like, and may be capable of receiving the operation of the user, and the user interface may further include some structures, such as a display screen, and the like, capable of prompting the user for information, such as the operating state of the server.
The storage device 802 may include a volatile memory device (volatile memory), such as a random-access memory (RAM); the storage device 802 may also include a non-volatile memory device (non-volatile memory), such as a flash memory device (flash memory), a solid-state drive (SSD), etc.; memory device 802 may also comprise a combination of memory devices of the types described above.
The processor 801 may be a Central Processing Unit (CPU). The processor 801 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or the like. The PLD may be a field-programmable gate array (FPGA), a General Array Logic (GAL), or the like. The processor 801 may also be a combination of the above structures.
In the embodiment of the present invention, the storage device 802 is used for storing a computer program, the computer program includes program instructions, and the processor 801 is used for executing the program instructions stored in the storage device 802, so as to implement the corresponding method steps in the above-mentioned embodiments.
In one embodiment, the processor 801 is configured to call the program instructions for performing:
determining a display area corresponding to a target image included in each playing frame in a video;
generating a script JS file in the display area corresponding to the target image in each playing frame according to the playing time;
receiving a JS file acquisition request sent by a terminal, and responding the JS file acquisition request to the terminal sends the JS file, so that the terminal is followed after acquiring a display area corresponding to a target image included by a current playing frame in a display picture in the JS file, reducing a target bullet screen to be in display transparency in the display picture, the display area corresponding to the target bullet screen and an overlapping area exist between the display areas corresponding to the target image.
In one embodiment, the processor 801 is further configured to call the program instructions for performing:
capturing a playing frame in the video according to a preset frequency;
and carrying out face recognition on each captured playing frame to obtain a target image in each playing frame, wherein the target image comprises a face image.
In one embodiment, the processor 801 is further configured to call the program instructions for performing:
determining an image frame where a target image in each playing frame in a video is located, and acquiring coordinate information of the image frame;
and determining a display area corresponding to the target image in each playing frame according to the coordinate information.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A bullet screen display method is characterized by comprising the following steps:
acquiring a display area corresponding to a target image included in a current playing frame in a display picture, wherein the target image includes a face image;
determining display areas corresponding to all barrages displayed in the current playing frame;
determining a target bullet screen with an overlapping area between the corresponding display area and the display area corresponding to the target image from all bullet screens;
acquiring the area of an overlapping region of the display region of the target bullet screen and the display region of the target image;
according to the area, simultaneously reducing the display transparency of each bullet screen element in the target bullet screen in the display picture, wherein the reduced display transparency of the target bullet screen is positively correlated with the area of the overlapping area, and the display transparency refers to the display depth of the bullet screen font;
and when the fact that no overlapping area exists between the display area corresponding to the target bullet screen and the display area corresponding to the target image is detected, simultaneously, the display transparency of each bullet screen element in the target bullet screen in the display picture is recovered.
2. The method according to claim 1, wherein the obtaining of the display area corresponding to the target image included in the currently played frame comprises:
sending a request for acquiring a JS file of the script to a server;
receiving a JS file sent by the server in response to the JS file acquisition request, wherein the JS file comprises a display area corresponding to a target image in each playing frame arranged according to playing time;
and acquiring a display area corresponding to the target image included in the current playing frame from the JS file.
3. The method according to claim 1 or 2, wherein the determining the display areas corresponding to all of the barrages displayed in the current playing frame comprises:
acquiring all barrages displayed in the current playing frame;
determining a bullet screen frame where each bullet screen in all the bullet screens is located, and acquiring coordinate information of the bullet screen frame in the display picture;
and determining the display area corresponding to each bullet screen according to the coordinate information, so that the display areas corresponding to all bullet screens displayed in the current playing frame can be determined.
4. A bullet screen display method is characterized by comprising the following steps:
determining a display area corresponding to a target image included in each playing frame in a video;
generating a script JS file in the display area corresponding to the target image in each playing frame according to the playing time;
receiving a JS file acquisition request sent by a terminal, and responding to the JS file acquisition request to send the JS file to the terminal, so that the terminal is after acquiring a display area corresponding to a target image included by a current play frame in a display picture in the JS file, simultaneously reducing the display transparency in the display picture of each bullet screen element in a target bullet screen according to the display area of the target bullet screen and the area size of the overlapping area of the display area of the target image, and when the terminal detects that the display area corresponding to the target bullet screen and the display area corresponding to the target image do not have the overlapping area therebetween, simultaneously restoring the display transparency in the display picture of each bullet screen element in the target bullet screen, the display area corresponding to the target bullet screen and the overlapping area therebetween, the display transparency reduced by the target bullet screen is in positive correlation with the area size of the overlapping area, and the display transparency refers to the display depth of the bullet screen font.
5. The method according to claim 4, wherein before determining the display area corresponding to the target image included in each playing frame of the video, the method further comprises:
capturing a playing frame in the video according to a preset frequency;
and carrying out face recognition on each captured playing frame to obtain a target image in each playing frame, wherein the target image comprises a face image.
6. The method according to claim 4 or 5, wherein the determining a display area corresponding to the target image included in each playing frame of the video comprises:
determining an image frame where a target image in each playing frame in a video is located, and acquiring coordinate information of the image frame;
and determining a display area corresponding to the target image in each playing frame according to the coordinate information.
7. A terminal, comprising a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method according to any of claims 1-3.
8. A server, comprising a processor and a storage device, the processor and the storage device being interconnected, wherein the storage device is configured to store computer program instructions, and the processor is configured to execute the program instructions to implement the method of any one of claims 4-6.
9. A computer storage medium having first computer program instructions stored therein, the first computer program instructions, when executed by a processor, being for performing the bullet screen display method of any one of claims 1-3; alternatively, the computer storage medium has stored therein second computer program instructions for executing the bullet screen display method according to any one of claims 4 to 6 when executed by the processor.
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