Apparatus and method for detecting key caption from moving picture to provide customized broadcast service
First Claim
1. An apparatus for detecting a caption from a moving picture, comprising:
- a caption domain detector selecting a candidate frame set from the moving picture based on a genre information and determining expectation caption domains from the selected candidate frame set;
a target caption detector selecting target caption candidate domains based on color pattern of the expectation caption domains and determining target caption domains based on a rate of change in a character and/or number domain from the selected target caption candidate domains; and
a key caption detector detecting a key character and/or number information domain by analyzing the target caption domains.
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Abstract
An apparatus for detecting a caption from a moving picture, including: a caption domain detector selecting a candidate frame based on input genre information from an input moving picture and determining expectation caption domains from the selected candidate frame set; a target caption detector selecting target caption candidate domains based on repetition of a position or color pattern of the expectation caption domains and determining target caption domains based on a rate of change in a character or number domain from the selected target caption candidate domains; and a key caption detector detecting a key character or number information domain by analyzing the target caption domains.
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Citations
33 Claims
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1. An apparatus for detecting a caption from a moving picture, comprising:
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a caption domain detector selecting a candidate frame set from the moving picture based on a genre information and determining expectation caption domains from the selected candidate frame set;
a target caption detector selecting target caption candidate domains based on color pattern of the expectation caption domains and determining target caption domains based on a rate of change in a character and/or number domain from the selected target caption candidate domains; and
a key caption detector detecting a key character and/or number information domain by analyzing the target caption domains. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for detecting a caption from a moving picture, comprising:
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a target caption candidate selection unit obtaining representative color values of input moving picture patterns by using a predetermined color identification algorithm, and selecting domains corresponding to clusters having the representative color value larger than a predetermined threshold value as target caption candidate domains using pattern-modeling according to a clustering of the representative color values; and
a target caption determination unit determining target caption domains by analyzing a rate of change in a key character or number domain from the selected target caption candidate domains, wherein character or number information domain is detected by analyzing the determined target caption domains. - View Dependent Claims (18)
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19. A method of detecting a caption from a moving picture, comprising:
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selecting a candidate frame set from the moving picture based on a genre information;
determining expectation caption domains from the selected candidate frame set;
selecting target caption candidate domains based on repetition of color pattern of the expectation caption domains;
determining target caption domains based on a rate of change in a character or number domain from the selected target caption candidate domains; and
detecting a key character or number information domain by analyzing the target caption domains. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of detecting a caption from a moving picture, comprising:
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obtaining representative color values of input moving picture patterns by using a predetermined color identification algorithm;
pattern-modeling according to a clustering of the representative color values;
selecting domains corresponding to clusters having the representative color value greater than a predetermined threshold value as target caption candidate domains from results of the pattern-modeling;
determining target caption domains by analyzing a rate of change in a key character or number domain from the selected target caption candidate domains; and
detecting a character or number information domain by analyzing the determined target caption domains. - View Dependent Claims (31)
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32. A method of detecting a caption from a moving picture, comprising:
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selecting a candidate frame set from the moving picture based on information;
determining expectation caption domains from the selected candidate frame set;
selecting target caption candidate domains based on repetition of color pattern of the expectation caption domains;
determining target caption domains based on a rate of change in a character and/or number domain from the selected target caption candidate domains; and
detecting a key character and/or number information domain by analyzing the target caption domains. - View Dependent Claims (33)
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Specification