Detecting and indexing characters of videos by NCuts and page ranking
First Claim
1. An apparatus, comprising:
- a feature extraction module to extract features of a scale invariant feature transform for face sets of a video; and
a cast indexing module to detect characters of the video, wherein the detection is via an association of clusters of the features.
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Accused Products
Abstract
Apparatuses, systems, and computer program products that detect and/or index characters of videos are disclosed. One or more embodiments comprise an apparatus an apparatus having a feature extraction module and a cast indexing module. The feature extraction module may extract features of a scale invariant feature transform (SIFT) for face sets of a video and the cast indexing module may detect one or more characters of the video via one or more associations of clusters of the features. Some alternative embodiments may include a cast ranking module to sort characters of the video, considering such factors as appearance times of the characters, appearance frequencies of the characters, and page rankings of the characters. The apparatus may associate or partition the clusters based on a normalized cut process, as well as detect the characters based on measures of distances of nodes associated with the features. Numerous embodiments may detect the characters based upon partitioning the clusters via solutions for eigenvalue systems for matrices of nodes of the clusters.
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Citations
20 Claims
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1. An apparatus, comprising:
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a feature extraction module to extract features of a scale invariant feature transform for face sets of a video; and a cast indexing module to detect characters of the video, wherein the detection is via an association of clusters of the features. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system, comprising:
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storage medium to store video, wherein the video comprises faces of a character; a feature extraction module to extract features of the faces and generate a plurality of clusters of nodes via the features; and a cast indexing module to detect the character based upon face clustering, wherein the face clustering is via at least one of normalized cuts of the nodes, a hierarchical clustering process, and a spectral clustering process. - View Dependent Claims (10, 11, 12, 13)
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14. A computer program product comprising a computer usable medium having computer usable program code for detecting a character of a video, the computer program product including:
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computer usable program code for extracting features of a scale invariant feature transform (SIFT) for a first face set and a second face set of the video; computer usable program code for generating a first cluster of features for the first face set and a second cluster of features for the second face set; and computer usable program code for detecting the character based on an association of the first cluster and the second cluster. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification