CN109361955B - Interest point-based double-speed video playing method and system - Google Patents
Interest point-based double-speed video playing method and system Download PDFInfo
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- CN109361955B CN109361955B CN201811357128.8A CN201811357128A CN109361955B CN 109361955 B CN109361955 B CN 109361955B CN 201811357128 A CN201811357128 A CN 201811357128A CN 109361955 B CN109361955 B CN 109361955B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000009471 action Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000002860 competitive effect Effects 0.000 abstract description 2
- 230000004069 differentiation Effects 0.000 abstract description 2
- 238000007405 data analysis Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- 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
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6373—Control signals issued by the client directed to the server or network components for rate control, e.g. request to the server to modify its transmission rate
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a double-speed video playing method and a double-speed video playing system based on interest points.A user selects a double-speed function on a player, the player pulls interesting paragraph information of a material from a background, and the interesting paragraph information comprises a starting point and an end point of each paragraph; the player plays on the conventional paragraph with the multiple speed appointed by the user, and when the player plays to the starting point of a certain interesting paragraph, the player changes to play at the normal multiple speed; when the interesting paragraph is played, the player switches to the user-specified double-speed playing. The invention can enhance the user experience, provide the differentiation competitive advantage and ensure that the user can watch the wonderful content at normal speed without manual operation in the double-speed playing mode.
Description
Technical Field
The invention relates to the field of video playing, in particular to a method and a system for playing double-speed video based on interest points.
Background
When video content and entertainment modes are very rich, time is limited, a plurality of users are used to start a double-speed watching mode, the double-speed playing of current large video websites and APP adopts fixed double speed, when the users watch interested points, the users need to manually switch back to normal speed playing, inconvenience is brought, for example, the users select 2 times speed, and then the players adopt 2 times speed playing to the whole video. This method is not integrated with the material being played. For example, when the user selects the 2 × speed playing, the user needs to manually switch to the normal speed playing, and when the interested content is played, the user manually switches back to the 2 × speed playing, so that the experience is poor. In the age when big data and deep learning prevail, a content provider can grasp the approximate user interest point of a video from the conditions of bullet screen distribution, user drag and drop progress and the like, thereby providing an intelligent double-speed playing mode.
At present, the research in this field is mainly to implement double-speed playing, rather than paying attention to the viewing mode of the user. How to enable a user to watch highlight content at normal speed without manual operation in the double-speed playing mode is a research focus in the field.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for playing a double-speed video based on an interest point, so that a user can watch wonderful content at normal speed without manual operation in a double-speed playing mode.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a double-speed video playing method based on interest points mainly comprises the following implementation processes: the method comprises the steps that a user selects a speed doubling function on a player, the player pulls interesting paragraph information of a video played by the user currently from a background, and the interesting paragraph information comprises a starting point and an end point of each paragraph; the player plays on the conventional paragraph with the multiple speed appointed by the user, and when the player plays to the starting point of a certain interesting paragraph, the player changes to play at the normal multiple speed; when the interesting paragraph is played, the player switches to the user-specified double-speed playing.
The determination process of the interesting paragraph comprises the following steps: the player collects the bullet screen information and the progress bar drag and drop information of the user on the video currently played by the user, and the paragraph division is dynamically adjusted according to the bullet screen information and the progress bar drag and drop information.
The specific method of the determination process of the interesting paragraph comprises the following steps:
1) the player collects the playing information of each video;
2) calculating the histogram distribution of the playing information with the accuracy of T minutes, and setting a time point which is p% of the number of the first-ranked points as a primary interest point;
3) expanding the primary interest point back and forth;
4) performing merging action on the expanded primary interest points as required to obtain a final interest area;
5) when the playing information collected by the player reaches the set growth proportion, repeating the steps
2) Operation of step 4).
The video playing information comprises bullet screen distribution time points and fast-backward playing time points.
The specific method for performing the on-demand merging action on the expanded primary interest point comprises the following steps: if the time interval between adjacent primary interest points is less than 3 × T minutes, the adjacent primary interest points are merged, and the start point of the previous primary interest point and the end point of the next primary interest point are taken as the merged start point and end point.
Correspondingly, the invention also provides a double-speed video playing system based on the interest points, which comprises the following steps:
the device comprises a pulling module, a playing module and a display module, wherein the pulling module is used for pulling interesting paragraph information of a video currently played by a user from a background when the user selects a speed doubling function on a player, and the interesting paragraph information comprises a starting point and an end point of each paragraph;
the playing module is used for playing on the conventional paragraph at the multiple speed specified by the user, and when the playing reaches the starting point of a certain interesting paragraph, the player changes to normal multiple speed playing; when the interesting paragraph is played, the player switches to the user-specified double-speed playing.
The pulling module comprises:
the acquisition module is used for collecting the playing information of each video;
the primary interest point acquisition module is used for calculating the histogram distribution of the playing information with the precision of T minutes, and setting a time point p% before the number ranking as a primary interest point;
the expansion module is used for expanding the primary interest point back and forth;
the merging module is used for performing merging action on the expanded primary interest points as required to obtain a final interest area;
and the updating module is used for repeating the operations of the acquisition module, the primary interest point acquisition module, the expansion module and the merging module when the collected playing information reaches the set growth proportion.
Compared with the prior art, the invention has the beneficial effects that: the invention can enhance the user experience, provide the differentiation competitive advantage and ensure that the user can watch the wonderful content at normal speed without manual operation in the double-speed playing mode.
Drawings
FIG. 1 is a schematic diagram of the method of the present invention.
Detailed Description
As shown in fig. 1, the user selects the speed doubling function on the player, and the player pulls the paragraph information of interest of the material from the background, which includes the start and end points of the respective paragraphs. The player plays on the regular paragraph with the multiple speed designated by the user, and when the player plays to the starting point of a certain interesting paragraph, the player changes to play at the normal multiple speed. When the interesting paragraph is played, the player switches to the user-specified double-speed playing.
The player collects the barrage information and progress bar drag and drop information of the user on the material, and the background interested paragraph decision module is responsible for dynamically adjusting paragraph division according to the information.
The background interesting paragraph decision module of the invention is realized as follows:
1. data collection phase
The realization method collects the playing information of each video through a front-end player, and the information comprises but is not limited to the bullet screen distribution time point and the fast-backward playing time point. We call this type of information "decision information of interest".
A bullet screen can give the viewer a feeling of "real-time interaction", and although the transmission times of different bullet screens are different, the bullet screens only appear at a specific time point in the video, so that bullet screens transmitted at the same time basically have the same theme. The traditional player comment system is independent of a player, so that the comment content mostly surrounds the whole video, and the topic is not strong, and the feeling of real-time interaction does not exist. For statistical findings of a large number of videos, the distribution of the barrage can approximately reflect the interested distribution of the user in the video content. For flat scenarios, users can select fast forward playing more, generally do not participate in barrage interaction, a small number of users can send negative evaluation barrages, and the distribution of the barrages is often dispersed. And for more wonderful segments or disputed segments, the comments of the user are more concentrated. After the user sends the bullet screen, the background server records the content and the time point of the bullet screen.
The user may select fast forward drag and drop for uninteresting content, which may miss interesting content because the user cannot predict the content, and may play fast backward after finding that the user missed the interesting content. And marking the time point of the fast-backward playing as a suspected interest point, and regularly feeding back the suspected interest point to the background server by the player.
For a certain video, the "interesting decision information" of a single user hardly reflects the real interest point distribution which is expected by the public, and the situation is gradually improved when the data amount reaches a certain order of magnitude. 2. Data analysis phase
For a certain video, the background server can start data analysis processing after collecting a specified amount of 'decision information of interest'.
The histogram distribution of the "interesting decision information" is calculated with T minutes as the precision, the horizontal axis is time, and the vertical axis is the number of the "interesting decision information" at the time point. T defaults to 2 minutes and can be configured in the background.
The time point of the top P% of the number rank is set as the primary point of interest, P defaults to 20.
The primary interest points are expanded back and forth, so that the interest points are naturally connected back and forth and the plot is complete. The expansion principle is that the expansion is carried out for T minutes before and after.
And carrying out merging action on the expanded primary interest points as required to obtain a final interest area. The merging principle is as follows: if the time interval between adjacent primary interest points is less than 3 × T minutes, the two are merged, and the starting point of the previous primary interest point and the end point of the next primary interest point are taken as the merged starting point and end point.
3. Iterative update phase
With the gradual increase of the number of viewing users, the 'interested decision information' is gradually increased, and when the set increase proportion is reached, a new interested point data analysis action is performed, and the recommended interested paragraph information of the film source is updated.
Claims (4)
1. A double-speed video playing method based on interest points is characterized in that the method mainly comprises the following implementation processes: the method comprises the steps that a user selects a speed doubling function on a player, the player pulls interesting paragraph information of a video played by the user currently from a background, and the interesting paragraph information comprises a starting point and an end point of each paragraph; the player plays on the conventional paragraph with the multiple speed appointed by the user, and when the player plays to the starting point of a certain interesting paragraph, the player changes to play at the normal multiple speed; when playing the interesting paragraph, the player switches to the multiple speed playing designated by the user;
the specific method of the determination process of the interesting paragraph comprises the following steps:
1) the player collects the playing information of each video;
2) calculating the histogram distribution of the playing information with the accuracy of T minutes, and setting a time point which is p% of the number of the first-ranked points as a primary interest point;
3) expanding the primary interest point back and forth; the expansion principle is that the front and the back of the primary interest point are respectively expanded for T minutes;
4) performing merging action on the expanded primary interest points as required to obtain a final interest area; the specific method for performing the on-demand merging action on the expanded primary interest point comprises the following steps: if the time interval between adjacent primary interest points is less than 3 × T minutes, merging the adjacent primary interest points, and taking the starting point of the previous primary interest point and the end point of the next primary interest point as the merged starting point and end point;
5) and when the playing information collected by the player reaches the set growth proportion, repeating the operations of the steps 2) to 4).
2. The method of claim 1, wherein the step of determining the interesting paragraph comprises: the player collects the bullet screen information and the progress bar drag and drop information of the user on the video currently played by the user, and the paragraph division is dynamically adjusted according to the bullet screen information and the progress bar drag and drop information.
3. The method of claim 1, wherein the playing information of the video includes bullet screen distribution time point and fast-backward playing time point.
4. A point-of-interest based double-speed video playing system, comprising:
the device comprises a pulling module, a playing module and a display module, wherein the pulling module is used for pulling interesting paragraph information of a video currently played by a user from a background when the user selects a speed doubling function on a player, and the interesting paragraph information comprises a starting point and an end point of each paragraph;
the playing module is used for playing on the conventional paragraph at the multiple speed specified by the user, and when the playing reaches the starting point of a certain interesting paragraph, the player changes to normal multiple speed playing; when playing the interesting paragraph, the player switches to the multiple speed playing designated by the user;
the pulling module comprises:
the acquisition module is used for collecting the playing information of each video;
the primary interest point acquisition module is used for calculating the histogram distribution of the playing information with the precision of T minutes, and setting a time point p% before the number ranking as a primary interest point;
the expansion module is used for expanding the primary interest point back and forth; the expansion principle is that the front and the back of the primary interest point are respectively expanded for T minutes;
the merging module is used for performing merging action on the expanded primary interest points as required to obtain a final interest area; the specific method for performing the on-demand merging action on the expanded primary interest point comprises the following steps: if the time interval between adjacent primary interest points is less than 3 × T minutes, merging the adjacent primary interest points, and taking the starting point of the previous primary interest point and the end point of the next primary interest point as the merged starting point and end point;
and the updating module is used for repeating the operations of the acquisition module, the primary interest point acquisition module, the expansion module and the merging module when the collected playing information reaches the set growth proportion.
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| CN201811357128.8A CN109361955B (en) | 2018-11-15 | 2018-11-15 | Interest point-based double-speed video playing method and system |
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| CN110248251B (en) * | 2019-06-14 | 2022-07-29 | 维沃移动通信有限公司 | Multimedia playing method and terminal equipment |
| CN112770182B (en) * | 2019-11-05 | 2022-07-29 | 腾讯科技（深圳）有限公司 | Video playing control method, device, equipment and storage medium |
| CN110856042B (en) * | 2019-11-18 | 2022-02-11 | 腾讯科技（深圳）有限公司 | Video playing method and device, computer readable storage medium and computer equipment |
| CN111918112B (en) * | 2020-06-29 | 2021-07-20 | 北京大学 | Video optimization method, device, storage medium and terminal |
| CN113473167A (en) * | 2021-06-30 | 2021-10-01 | 烽火通信科技股份有限公司 | Real-time audio and video playing and controlling method, system and equipment and readable storage medium |
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| EP1913773A4 (en) * | 2005-08-10 | 2012-12-26 | Thomson Licensing | System and method for reviewing digital cinema content |
| CN101119225B (en) * | 2006-07-31 | 2011-05-18 | 诺基亚西门子通信系统技术（北京）有限公司 | Statistical method for network visit |
| CN106911961B (en) * | 2017-02-22 | 2020-03-17 | 北京小米移动软件有限公司 | Multimedia data playing method and device |
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