Method for detecting video and audio quality of digital television program file

A technology of program files and TV programs, applied in TV, electrical components, image communication, etc., can solve problems such as difficult identification, easy missed inspection, annoying manual technical inspection, etc., and achieve the effect of improving detection speed and work efficiency

Active Publication Date: 2011-04-06
BEIJING DAYANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the digital and networked document review process has greatly improved the efficiency of review, there are still problems: technical review is still in the state of manual review
The technical review is different from the content review. During the technical review, the reviewers need to carefully review the film

Method used

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  • Method for detecting video and audio quality of digital television program file
  • Method for detecting video and audio quality of digital television program file
  • Method for detecting video and audio quality of digital television program file

Examples

Experimental program
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Embodiment 1

[0021] This embodiment is a method for detecting the video and audio quality of digital TV program files, the system used in the method includes: a review source, an automatic technical review server, and a plurality of automatic technical review terminals, such as figure 1 shown. The review source described in this embodiment can be a network, or a mobile storage device, such as a hard disk, a flash memory, etc., or a digital video recorder, as long as it is capable of storing and providing TV program files to be reviewed, it can be considered as a review source. source. The automatic technical examination server is a computer system capable of video processing, which can be installed with various operating systems and video processing software systems, and has input and output interfaces that can be connected to the network and input various video and audio files. The automatic technical examination server can connect multiple terminal devices, which are called automatic te...

Embodiment 2

[0034] This embodiment is an improvement of the first embodiment, and is a refinement of the audit detection parameter template in the step of selecting the audit detection parameter template in the first embodiment. In the step of selecting the audit detection parameter template described in this embodiment, the detection items include video detection and audio detection, and the video detection includes: black field detection, color frame detection, color bar detection, still frame detection, and Y / U / V exceeding the standard Detection, composite signal detection, R / G / B over-standard detection, audio detection includes: silent detection, mute detection, level detection, peak over-standard detection, VU over-standard detection, stereo phase detection, the audit detection parameter template is composed of all items Or a combination of several of these items. The items tested include:

[0035] Video detection:

[0036] Black field detection: The definition and detection princi...

Embodiment 3

[0060] This embodiment is an improvement of the second embodiment, and is a refinement of the detection steps of the second embodiment. The detection step described in this embodiment includes the following sub-steps:

[0061] Each of the following test items is selected according to the selection of the audit test parameter template, or all of them are tested, or some of the item combinations are selected for testing:

[0062] Intra-frame detection of video: the judgment of “yes, no” and “yes, no” is detected for each frame of the entire file of the TV program file to be reviewed or a certain paragraph of the file of the TV program file to be reviewed in chronological order from the beginning to the end. "No" judgment items include: black field detection, color frame detection, color bar detection, "yes, no" judgment items include: Y / U / V over-standard detection, composite signal detection, R / G / B over-standard detection.

[0063] Inter-frame detection of video: Judgment of "y...

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Abstract

The invention relates to a method for detecting video and audio quality of a digital television program file. A system used by the method comprises an examination source, an automatic technical examination server and a plurality of automatic technical examination terminals. The method comprises the following steps of: selecting an examination and detection parameter template, submitting an automatic technical examination task, receiving a television program file to be examined, verifying a message digest MD5, extracting a frame, detecting, judging whether the examination is finished, and checking and transmitting the examined result. Due to the detection, a plurality of technical indexes of video and audio in the television program file to be examined are detected so as to obtain the examined result. The examined result can be transmitted to a manual technical examination system, the detection result is accurate to the frame, and the working efficiency is improved. Meanwhile, different examination and detection parameter templates can be set for different digital television program files, and the detection is performed aiming at possible problems of the television program file to be examined. Therefore, the detection rate can be improved.

Description

technical field [0001] The invention relates to a method for detecting video and audio quality of digital television program files, which is a method for computer processing images and a method for detecting digital video and audio signals. Background technique [0002] During or after the production of digital TV programs, it is necessary to review its content, image and sound quality, which is called film review. The review of image and sound quality is called technical review, or technical review for short. The program review process of traditional TV stations is in a very primitive state: After the program producers complete the program production, they send the program tapes to the reviewers. The reviewer uses a special video recorder for the TV station to play the program tape, watches the output screen through the monitor, and conducts program review during the playback process. The review comments shall be returned to the program production staff together with the ...

Claims

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Application Information

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IPC IPC(8): H04N17/00H04N17/02
Inventor 姚威邓伟骆健王宁史鹏程蒋重涛邵一民张贤良郭美青尚秀勇王彦斌韩峻峰
Owner BEIJING DAYANG TECH DEV
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