Apparatus and method for automatically analyzing digital video quality
First Claim
1. An apparatus for automatically analyzing digital video quality, comprising:
- a video analyzing unit configured to analyze a texture attribute of an input video and to analyze a color attribute of the input video to obtain a texture attribute analysis result and a color attribute analysis result, respectively, and assign the texture attribute analysis result and the color attribute analysis result to a main component analysis result and a minor analysis result based, upon the existence of a reference video, the textural attribute analysis result and the color attribute analysis result ranging from about zero, the lowest quality, to about 100, the highest quality; and
a result displaying unit configured to determine the existence of the reference video;
wherein when the reference video exists, the result displaying unit is configured;
to determine the texture attribute analysis result as a main component analysis result and the color attribute analysis result as a minor component analysis result, andto display the determined analysis results on a screen in a form of numerical values and graphs together with the input video;
wherein, when the reference video does not exist, the results displaying unit is configured to determine the texture attribute analysis result as the minor component analysis result and the color attribute analysis result as the main component analysis result, respectively, and to display the determined analysis results on the screen in a form of numerical values and graphs together with the input video; and
wherein a final video quality is determined based upon the following equation;
Final Video Quality ={kΣ
(main component analysis result)+(1−
k)Σ
(minor component analysis result)}/3;
where k is a predetermined importance factor.
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Abstract
An apparatus and method for automatically analyzing digital video quality are provided. The apparatus for automatically analyzing digital video quality includes a video analyzing unit and a result displaying unit. The video analyzing unit analyzes a texture attribute of an input video and analyzes a color attribute of the input video, thereby obtaining a texture attribute analysis result and a color attribute analysis result. The result displaying unit determines whether a reference video for video quality analysis exists or not. When the reference video exists, the result displaying unit determines the texture attribute analysis result as a main component analysis result and the color attribute analysis result as a minor component analysis result, respectively, and displays the determined analysis results on a screen in a form of numerical values and graphs together with the input video. On the contrary, when the reference video does not exist, the result displaying unit determines the texture attribute analysis result as the minor component analysis result and the color attribute analysis result as the major component analysis result, respectively, and displays the determined analysis results on the screen in a form of numerical values and graphs together with the input video. Accordingly, the digital video quality can be automatically analyzed and displayed.
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Citations
7 Claims
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1. An apparatus for automatically analyzing digital video quality, comprising:
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a video analyzing unit configured to analyze a texture attribute of an input video and to analyze a color attribute of the input video to obtain a texture attribute analysis result and a color attribute analysis result, respectively, and assign the texture attribute analysis result and the color attribute analysis result to a main component analysis result and a minor analysis result based, upon the existence of a reference video, the textural attribute analysis result and the color attribute analysis result ranging from about zero, the lowest quality, to about 100, the highest quality; and a result displaying unit configured to determine the existence of the reference video; wherein when the reference video exists, the result displaying unit is configured; to determine the texture attribute analysis result as a main component analysis result and the color attribute analysis result as a minor component analysis result, and to display the determined analysis results on a screen in a form of numerical values and graphs together with the input video; wherein, when the reference video does not exist, the results displaying unit is configured to determine the texture attribute analysis result as the minor component analysis result and the color attribute analysis result as the main component analysis result, respectively, and to display the determined analysis results on the screen in a form of numerical values and graphs together with the input video; and wherein a final video quality is determined based upon the following equation;
Final Video Quality ={kΣ
(main component analysis result)+(1−
k)Σ
(minor component analysis result)}/3;
where k is a predetermined importance factor. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for automatically analyzing and displaying digital video quality, comprising the steps of:
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(a) receiving a target video to be analyzed, and determining an importance factor k for determining weights of main and minor components to determine a final video quality; (b) performing a preprocessing of a texture analysis, the preprocessing operation including calculating histogram, noise and reflection attribute of an input video and sequentially analyzing a texture attribute, a reflection attribute, and an edge attribute of the input video; (c) converting R, G and B color values of the input video into device-independent XYZ color space in combination with the operation (b), converting the XYZ color space into color values of standard color domain, and sequentially analyzing a lightness attribute, a chroma attribute, and a contrast attribute of the input video; (d) determining, based upon a textual attribute, a color attribute, and whether a reference video exists, a main component analysis result and a minor component analysis result, and calculating a final video quality analysis result by using the determined main and minor component analysis results and the importance factor k based upon the following equation;
Final Video Quality Analysis Result ={kΣ
(main component analysis result)+(1−
k)Σ
(minor component analysis result)}/3wherein when the reference video exists, the main component analysis result and the minor component analysis result are based on the textual attribute and color attribute, respectively, and when the reference video does not exist, the main component analysis result and the minor component analysis result are based on the color attribute and textual attribute, respectively; and (e) displaying the input video and the final video quality analysis result of the operation (d) in a form of numerical values and graphs.
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Specification