Method and device for monitoring live broadcast content in real time

A real-time monitoring and content technology, applied in the field of communication, can solve the problems of low accuracy and real-time performance of live broadcast content, and achieve the effects of reducing computing overhead, improving real-time performance, and improving accuracy

Active Publication Date: 2017-09-22
BEIJING QIYI CENTURY SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for real-time monitoring of live broadcast content to solve the problems of low accuracy and real-time performance in the process of reviewing live broadcast content due to the fact that only static review methods are used for live broadcast review in the prior art

Method used

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  • Method and device for monitoring live broadcast content in real time
  • Method and device for monitoring live broadcast content in real time
  • Method and device for monitoring live broadcast content in real time

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Experimental program
Comparison scheme
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Embodiment 1

[0027] refer to figure 1 , shows a flow chart of steps of a method for real-time monitoring of live content in Embodiment 1 of the present invention.

[0028] The method for real-time monitoring live content provided by the embodiment of the present invention comprises the following steps:

[0029] Step 101: Receive and analyze live streaming data and audience streaming data in real time to obtain live streaming data and audience data.

[0030] Receive three streaming data of video, audio and audience behavior during the live broadcast in real time.

[0031] For example: during the live broadcast process, the live video content and audio content of the live broadcast, as well as the stream data of the viewer's behavior that will interact with the host during the live broadcast due to the viewers watching the live broadcast, analyze the received stream data, Generate identifiable video frame sequences and audio frames, and at the same time analyze the corresponding audience b...

Embodiment 2

[0047] refer to figure 2 , shows a flow chart of steps of a method for real-time monitoring of live content in Embodiment 2 of the present invention.

[0048] The method for real-time monitoring live content provided by the embodiment of the present invention includes the following contents:

[0049] Step 201: according to the formula min∑L (f (X i ), Y i )+αT to train the classifier.

[0050] Among them, f(X i ) represents the overall decision function, αT represents the classifier function, and Yi represents the labeled sample.

[0051] The training of the cascade classifier is calculated offline. In order to balance the efficiency of calculation and the accuracy of detection, the accuracy and calculation time are considered when setting the objective function.

[0052] Using min∑L(f(X i ), Y i )+αT to train the classifier, where f(X i ) represents the overall decision function, α represents the hyperparameter, T represents the average feature extraction time of the...

Embodiment 3

[0087] refer to image 3 It shows a device for real-time monitoring of live content according to Embodiment 3 of the present invention.

[0088] The device for real-time monitoring of live content provided by the embodiment of the present invention includes: a real-time receiving module 301 for receiving and analyzing live stream data and audience stream data in real time to obtain live data and audience data; an extraction module 302 for extracting data from the live stream data and the audience data to extract feature data; calculation module 303, used to calculate the score value corresponding to each feature data; output result module 304, used for the first classifier to obtain any one of the score value and the first preset Thresholds are compared to determine the security level of the live content and output the judgment result.

[0089] The embodiment of the present invention provides a device for real-time monitoring of live content. Through real-time monitoring, fea...

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Abstract

The invention provides a method for monitoring live broadcast content in real time. The method is characterized by comprising the steps of: receiving and analyzing live broadcast streaming data and viewer streaming data in real time, so as to obtain live broadcast data and viewer data; extracting feature data from the live broadcast data and the viewer data; calculating a score value corresponding to each piece of feature data separately; and acquiring an arbitrary score value by means of a first classifier to be compared with a first preset threshold value, judging a safety level of the live broadcast content, and outputting a judgment result. Therefore, by adopting the method for monitoring the live broadcast content in real time provided by the invention, the live broadcast content can be detected through combining features such as video, audio and user behaviors in real time, and the real-time performance of detection can be improved; moreover, the final detection result is determined in a manner of cascading a plurality of classifiers during detection, thus the computation overhead can be reduced, and the precision of the detection result can be improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for real-time monitoring of live content. Background technique [0002] At present, with the rapid development of science and technology, the number of live broadcast platforms is also increasing rapidly, and the number of users of online live broadcast platforms has reached a huge number. The threshold for online live broadcasting is very low, and only a computer and an account are needed for live broadcasting. Since live broadcast content is ever-changing and cannot be reviewed in advance, there may be pornographic, violent, politically sensitive and other illegal live broadcast content, so real-time review of live broadcast content is particularly important. [0003] Existing review technologies for video content are all offline review before uploading the video, and the filtering technology used mostly relies on user reports, or traditional pattern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/24H04N21/442H04N21/44H04N21/439
CPCH04N21/2407H04N21/4394H04N21/44008H04N21/44204H04N21/44222
Inventor 陈洁远
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD
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