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Automatic multimedia material defect detection and quality analysis method

A quality analysis and media material technology, applied in the multimedia field, can solve the problem of huge time-consuming and expensive, and achieve the effect of saving costs and social resources

Inactive Publication Date: 2011-10-26
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0004] On the other hand, due to the accumulation of history, the number of early analog media materials to be rescued and preserved is extremely large (in millions of hours), and the method of manual detection and restoration is time-consuming and expensive.

Method used

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  • Automatic multimedia material defect detection and quality analysis method
  • Automatic multimedia material defect detection and quality analysis method
  • Automatic multimedia material defect detection and quality analysis method

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Embodiment Construction

[0061] 1. The fully automatic multimedia material defect detection and quality analysis methods provided by the present invention include:

[0062] 1. Establishment of media material defect model set;

[0063] 2. Establishment of media material quality analysis index set;

[0064] 3. Detection of media material defects;

[0065] 4. Quality analysis of media materials;

[0066] Fifth, save the detection and quality analysis results of media material defects.

[0067] In the implementation software of the present invention, after the analog video is collected, it is converted into a video frame image with a resolution of 352x288, and all algorithms are aimed at this resolution video processing.

[0068] 1. Media material defect model set

[0069] include:

[0070] ● Failure frame model. This type of defect model and detection results are given by Figure 4 show. It can be seen from the figure that the entire frame capacity of this type of defect is completely missing, an...

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Abstract

The invention provides an automatic multimedia material defect detection and quality analysis method. The method comprises the following steps: establishment of media material defect model set; detection of media material defect; analysis of media material quality; detection of media material defect and preservation of quality analysis result. Software which is realized based on the method in the invention can reach an effect of real-time processing in a present mainstream computer, and is used for digitlization recovery of mass simulation media material accumulated in history and pretreatment of a storage system. The method in the invention provides real-time automatic defect detection (comprising defect types, frame number, time stamp / fragment information, defect position and the like) for simulation material recovery and necessary low layer quality information (comprising video audio signal to noise ratio, video audio bandwidth, video audio mean value and the like) which media compression storage needs. Based on the information, tasks of media material recovery repairing, video audio compression and digitlization storage and the like can be carried out manually or automatically.

Description

technical field [0001] The invention relates to multimedia technology, in particular to defect detection and restoration of analog video material and digital storage technology. Background technique [0002] Film technology was produced at the end of the 19th century, matured in the 20th century and developed to the present; radio and television technology appeared later, around the end of World War II, and has been developed to the present. Early media such as movies, television, and records were stored on analog storage media such as film, video tape, and analog discs. The media material stored on these analog media will gradually age and break down with the passage of time and the increase in the number of uses, resulting in a decrease in quality. Its prominent feature is the generation of various media material defects, such as complete or various partial loss of video frame content due to damage or contamination of the video tape, degradation of frame content caused by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262
Inventor 蔡靖
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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