Video-attribute-information output apparatus, video digest forming apparatus, computer program product, and video-attribute-information output method
First Claim
1. A video-attribute-information output apparatus comprising:
- a scene dividing unit that detects a change in scenes where there is little similarity between frames of video content, and divides the video content into a plurality of scenes;
an attribute-information-area extracting unit that extracts an attribute information area in which attribute information is displayed and which has no change between specific frames of adjacent scenes that are obtained by dividing by the scene dividing unit;
a character-area extracting unit that extracts character areas in which video attribute information in individual characters that is metadata of the video content is present, from the attribute information area extracted by the attribute-information-area extracting unit;
a character-area-meaning assigning unit that assigns meanings to the character areas extracted by the character-area extracting unit, by referring to rule information that specifies the meanings for the character areas;
a video-attribute-information output unit that reads the video attribute information from the character areas to which the meanings are assigned, and outputs the video attribute information;
a typical scene extracting unit that extracts typical scenes that are images shot in a same composition and repeatedly appear in the video content, from the adjacent scenes obtained by dividing by the scene dividing unit; and
a region judging unit that judges whether each of the extracted typical scenes has the extracted attribute information area, whereinthe character-area extracting unit extracts character areas in which the individual characters are present in the extracted attribute information area and judged as being in a typical scene by the region judging unit.
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Abstract
An attribute-information-area extracting unit extracts an attribute information area in which attribute information is displayed when the attribute information area does not change between certain frames of adjacent scenes obtained by dividing a video content by a scene dividing unit. A character-areas extracting unit extracts character areas in which video attribute information in individual characters that is metadata of the video content of the attribute information area are present, and a character-area-meaning assigning unit assigns meanings to the character areas. A character-area reading unit reads the video attribute information, from the character areas to which meanings are assigned, thereby outputting the video attribute information.
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Citations
13 Claims
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1. A video-attribute-information output apparatus comprising:
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a scene dividing unit that detects a change in scenes where there is little similarity between frames of video content, and divides the video content into a plurality of scenes; an attribute-information-area extracting unit that extracts an attribute information area in which attribute information is displayed and which has no change between specific frames of adjacent scenes that are obtained by dividing by the scene dividing unit; a character-area extracting unit that extracts character areas in which video attribute information in individual characters that is metadata of the video content is present, from the attribute information area extracted by the attribute-information-area extracting unit; a character-area-meaning assigning unit that assigns meanings to the character areas extracted by the character-area extracting unit, by referring to rule information that specifies the meanings for the character areas; a video-attribute-information output unit that reads the video attribute information from the character areas to which the meanings are assigned, and outputs the video attribute information; a typical scene extracting unit that extracts typical scenes that are images shot in a same composition and repeatedly appear in the video content, from the adjacent scenes obtained by dividing by the scene dividing unit; and a region judging unit that judges whether each of the extracted typical scenes has the extracted attribute information area, wherein the character-area extracting unit extracts character areas in which the individual characters are present in the extracted attribute information area and judged as being in a typical scene by the region judging unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer program product having a non-transitory computer readable medium including program instructions for outputting video attribute information, wherein the instructions, when executed by a computer, cause the computer to perform:
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detecting a change in scenes where there is little similarity between frames of video content, and dividing the video content into a plurality of scenes; extracting an attribute information area in which attribute information is displayed and which has no change between specific frames of the divided adjacent scenes; extracting character areas in which video attribute information in individual characters that is metadata of the video content is present, from the extracted attribute information area; assigning meanings to the extracted character areas by referring to rule information that specifies the meanings for the character areas; reading the video attribute information from the character areas to which the meanings are assigned, and outputting the video attribute information; extracting typical scenes that are images shot in a same composition and repeatedly appear in the video content, from the adjacent scenes obtained by dividing; and judging whether each of the extracted typical scenes has the extracted attribute information area, wherein the extracting extracts character areas in which the individual characters are present in the extracted attribute information area and judged as being in a typical scene.
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13. A video-attribute-information output method comprising:
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detecting a change in scenes where there is little similarity between frames of video content, and dividing the video content into a plurality of scenes; extracting an attribute information area in which attribute information is displayed and which has no change between specific frames of the divided adjacent scenes; extracting character areas in which video attribute information in individual characters that is metadata of the video content is present, from the extracted attribute information area; assigning meanings to the extracted character areas by referring to rule information that specifies the meanings for the character areas; reading the video attribute information from the character areas to which the meanings are assigned, and outputting the video attribute information; extracting typical scenes that are images shot in a same composition and repeatedly appear in the video content, from the adjacent scenes obtained by dividing; and judging whether each of the extracted typical scenes has the extracted attribute information area, wherein the extracting extracts character areas in which the individual characters are present in the extracted attribute information area and judged as being in a typical scene.
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Specification