System and method for searching choreography database based on motion inquiry

A motion inquiry based searching service device, comprising:

• a data base which stores video data for a plurality of contents and search reference information;
• a human joint extracting unit which analyzes the input motion inquiry video to extract position information for joints of an inquirer in every video frame;
• a motion feature extracting unit which extracts a representative posture describer of the inquirer for every section based on posture describers extracted from the position information for joints of the inquirer and extracts the representative posture describer of contents for every point section referring to the search reference information;
• and
• a searching unit which compares the representative posture describer of the inquirer for every section with the representative posture describer of contents for every point section to calculate the similarity and extracts contents including a motion video having the highest similarity from the database.