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A plain text frame monitoring method

A pure text and non-text technology, applied in the field of pure text frame monitoring, can solve the problems of low analysis process efficiency, poor real-time performance, and difficulty in analyzing original video streams, etc., and achieves a small footprint, high cost performance, and high stability. Effect

Active Publication Date: 2018-07-27
北京维鲸视界科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing solution is to encode and package the image on the embedded platform, upload it to the cloud / server through the network, and decode and analyze the video stream on the server side. However, due to the limitation of network transmission bandwidth in the existing technology, the video stream must be encoded and transmitted. Re-decoding analysis makes it difficult to directly analyze the original video stream, which leads to low efficiency of the analysis process and poor real-time performance

Method used

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  • A plain text frame monitoring method

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] Embodiments of the present invention provide a plain text frame monitoring method, such as figure 1 shown, including the following steps:

[0030] S1. Acquiring original video frame image data;

[0031] S2. Obtain a binarized image of the original video frame image;

[0032] S3. Excluding non-text areas in the binarized image;

[0033] S4. Obtain the suspected target text area in the binarized image, and extract a binary template according to the suspected target text area;

[0034] S5. Acquire text area information in the original video frame image data according to the binary template.

[0035] Preferably, in S2, denoising and image blur processing are first performed on the original video frame image, then edge detection is performed on the processed...

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Abstract

A plain text frame monitoring method, the present invention provides a highly efficient video plain text frame detection method, real-time acquisition of the original video stream output from SDI, and plain text identification and analysis of the video stream, so that the plain text frame monitor. The present invention can perform real-time plain text frame detection on 4-channel standard-definition programs or 2-channel high-definition programs in real time. Compared with the existing technology, this technology is based on a high-performance embedded system. The core algorithm module uses DSP assembly code, without codec and transmission processing, and realizes real-time plain text analysis in the original video. It has the characteristics of high efficiency, high performance and high stability. , and occupies a small space, has high cost performance, and is not limited by bandwidth.

Description

technical field [0001] The invention relates to the field of information processing, in particular to a plain text frame monitoring method. Background technique [0002] After several years of development, China's digital TV network has formed a considerable scale, and the digitization of TV programs has been fully popularized. In order to monitor the broadcast quality of the programs of the subordinate TV stations and whether the content of the broadcast meets the regulations, the country and many provinces and cities have established supervision centers to monitor and monitor the programs broadcast by the subordinate TV stations, and the programs of each monitoring point need to be transmitted back through a dedicated network to the supervision center. In content layer analysis, it is necessary to analyze plain text frames, combine still frame analysis, and audio feature analysis, and report abnormalities in the analysis results to the network management platform. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/234G06K9/00
CPCH04N21/23418G06V20/40
Inventor 林晓东
Owner 北京维鲸视界科技有限公司