Video/audio signal processing method and video/audio signal processing apparatus

Abstract

A metadata extraction unit has a feature point selection and motion estimation unit 62 for extracting at least one feature point representing characteristics of the video/audio signals in a compressed domain of the video/audio signals. Thus, reduction of time or cost for processing can be realized and it makes it possible to process effectively.

1 - 52 . (canceled)  
   
   
       53 . A method for processing and browsing supplied video/audio signals, comprising the steps of: 
 building hierarchically a camera motion transition graph, wherein the graph building step includes the step of providing a graph layout having at least one main camera motion transition graph and having a plurality of nodes representing other camera motion with the transition paths illustrated for a video sequence;    browsing through the camera motion transition graph by depicting keyframes of a camera motion video sequence at the nodes; and    browsing through the camera motion transition graph by depicting a graph representation of the camera motion at the nodes.    
   
   
       54 . An apparatus for processing and browsing supplied video/audio signals, comprising: 
 means for building hierarchically a camera motion transition graph, wherein the graph building means includes the step of providing a graph layout having at least one main camera motion transition graph and having a plurality of nodes representing other camera motion with the transition paths illustrated for a video sequence;    means for browsing through the camera motion transition graph by depicting keyframes of a camera motion video sequence at the nodes; and    means for browsing through the camera motion transition graph by depicting a graph representation of the camera motion at the nodes.    
   
   
       55 . A method for extracting a hierarchical decomposition of a complex video selection for browsing, comprising the steps of: 
 identifying video;    collecting key frames from said video shots for representing each video segment;    classifying the collections of key frames according to camera motion or global motion information; and    building a graphical representation of the video, the graphical representation being based upon the results of said classifying step, temporal as well as camera motion information associated with each part of a video shot, wherein said graphical representation building step includes the step of representing each category of video shot by node.    
   
   
       56 . An apparatus for extracting a hierarchical decomposition of a complex video selection for browsing, comprising: 
 means for identifying video;    means for collecting key frames from said video shots for representing each video segment;    means for classifying the collections of key frames according to camera motion or global motion information; and    means for building a graphical representation of the video, the graphical representation being based upon the results of said classifying step, temporal as well as camera motion information associated with each part of a video shot, wherein said graphical representation building step includes means for representing each category of video shot by node.    
   
   
       57 - 92 . (canceled)