Method and device for discriminating obscene video using time-based feature value

A device for discriminating an obscene video using a time-based feature value, the device comprising:

• a first normalizer classifying videos into an obscene type and a non-obscene type and normalizing the videos into N frames;
• a first feature extractor extracting a feature value from each of the frames of the normalized videos in their entirety;
• a first time-based flow creator creating a first time-based flow of the extracted feature values and representing a first pattern of obsceneness for a duration of the corresponding video;
• a second normalizer receiving an input video of which obsceneness is to be determined and normalizing the input video in its entirety into an integer multiple of the N frames;
• a second feature extractor extracting the feature value from each of the frames normalized by the second normalizer;
• a second time-based flow creator creating a second time-based flow of the extracted feature values output from the second feature extractor and representing a second pattern of obsceneness for a duration of the corresponding video;
• and
• an obsceneness determiner determining the obsceneness of the input video through comparison between the first time-based flow and the second time-based flow.