Utility function prediction apparatus for real-time multimedia contents transcoding, and multimedia contents transcoding access system using it

摘要

1. The art that the invention described in the claims ; The present invention. Will about the utility function prediction devices and multimedia content adaptation system using the same approach for real-time multimedia content adaptation ; 2. In order to solve the technical problem that this invention ; The present invention is best adapted structured multimedia content (preferably a video adaptation), compressed metadata (that is to describe the relationship between the limited resources and quality of multimedia content from utility function (uility function)) intended to provide information to the utility function prediction device that can produce predictable. ; 3. Solution subject matter of the invention ; The present invention, according to a utility function of the prediction unit in a multimedia environment, the incoming compressed live multimedia content and stores the compressed information feature extraction means for extracting feature information from the multimedia content ; Multimedia content, clips (segment) and, every time information describing a plurality of feature information for each feature vector, calculation and generation of a utility function, a group described utility function storage unit that stores the vector by experimentation with a uniform information; Clustering means for classification in the storage means, the class consisting of the contents characteristics vector of a number of similar clips in the feature space information (class); In the storage means, the class information and the content characteristic vector, the utility function using a regression learning means for obtaining a regression vector (regression) models within each class; Learning means for classification into one classification (classification) of the determined class in the feature according to the content using the content characteristic vector and the class information of the storage means; Receiving information, characterized in that the definition of the input segments in accordance with the classification rule obtained by the learning means learning result of the classification, the classification determining means for determining one of a number of classes obtained from the above; And by applying the regression model obtained from the regression learning means for the class determined by the classification determining means, the multimedia content clip utility functions (restricted resources and metadata describing the relationship information of the picture quality) to the (segment) including a utility function generating means for generating prediction. ; 4. An important use ; THE INVENTION The present invention used to fight and multimedia content adaptation system.