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A news and image technology, applied in the field of video processing, can solve the problems of low accuracy, long time, poor generalization ability, etc., to improve the accuracy, improve the accuracy, and speed up the processing speed.
Active Publication Date: 2019-09-20
新华智云科技有限公司
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The accuracy of this method is about 93.3%, but because it needs to calculate whether the faces are evenly distributed in time, it will take a long time to count every face that appears in the video; and because some news programs , there are various combinations of anchor broadcasting methods, such as two-person broadcasting, single-person broadcasting at the same time, the lens of the director stati...
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Embodiment 1
[0064] Embodiment 1, a kind of news dismantling method based on skeleton analysis and face recognition, comprises the following steps:
[0065] S1. Obtain the audio frame and video frame of the news to be split;
[0066] S2, preprocessing the audio frame obtained in step S1, and obtaining the corresponding sentence segmentation start time series and sentence segmentation end time series, the specific processing method is as follows:
[0067] Extract the silence time period corresponding to the decibel value lower than the decibel threshold and the duration greater than the time threshold, the silence time period represents the time period of the sentence pause; extract the corresponding start and end nodes according to the silence time period, that is, the sentence start time point and the sentence end point in time;
[0068] Note: The decibel threshold and time threshold are preset values, and staff in related fields can set them by themselves according to actual needs. In t...
Embodiment 2
[0148] Embodiment 2, a kind of news dismantling system, such as Figure 5 Shown include:
[0149] News acquisition module 1, used to acquire audio frames and video frames of news to be stripped;
[0150] The audio frame preprocessing module 2 is used to preprocess the audio frame, obtain the silence time period, and obtain the sentence start time point and the sentence end time point corresponding to each silence time period;
[0151] The video frame preprocessing module 3 is used to preprocess the video frame and obtain anchor feature data;
[0152] The feature data of the host includes an original template image and a feature descriptor corresponding to the host, and the video frame preprocessing module 3 is configured as:
[0153] From the first video frame, extract a video frame every K to perform skeleton analysis on each portrait, mark the portraits belonging to the anchor in the video frame, and obtain the tagged image;
[0154] Collect the face of the portrait marke...
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Abstract
The invention provides a news splitting method. The method comprises the following steps: obtaining audio frames and video frames of news to be split; preprocessing the audio frame, obtaining mute time periods, and obtaining a sentence segmentation starting time point and a sentence segmentation ending time point corresponding to each mute time period; preprocessing the video frame, and obtaining anchor feature data; extracting video frames corresponding to the sentence segmentation starting time points and the sentence segmentation ending time points to obtain corresponding sentence segmentation starting images and sentence segmentation ending images; judging whether anchor switching exists between the sentence segmentation starting images and the sentence segmentation ending images or not according to the anchor feature data, and when anchor switching exists, extracting a corresponding video frame according to a corresponding mute time period to obtain a pause paragraph; and obtaining to-be-split points of the pause paragraph, and splitting the news video according to each to-be-split point. According to the method, the pause paragraphs with anchor switching are screened out through the anchor feature data, then the to-be-split points are judged to perform news splitting, the processing speed can be increased, and the accuracy is improved.
Description
technical field [0001] The invention relates to the field of video processing, in particular to a method and system for dismantling news strips. Background technique [0002] News is a major channel for people to receive external information on a daily basis. With the enrichment of media information, there is a large amount of original news data. Automatically dismantling these news programs can greatly save labor costs. The current news stripping technology mainly uses methods such as transition recognition, voice fingerprinting, and face recognition. [0003] The method of dismantling news using voice fingerprints first needs to establish a human voice fingerprint library for news programs, which will inevitably result in a large workload in the early stage, and when there are new anchors, the fingerprint library needs to be constantly refreshed and maintained. Moreover, the voiceprint recognition technology currently on the market is immature. Generally, the accuracy rat...
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