APPARATUS AND METHOD FOR EXPRESSING VECTOR EXPERT AND APPARATUS AND METHOD FOR SEARCHING MULTIMEDIA DATA USING THE SAME

摘要

PURPOSE: An apparatus and a method for expressing a vector expert and an apparatus and a method for searching multimedia data using the same are provided to search multimedia data by expressing and storing vector experts of multimedia data hierarchically. CONSTITUTION: An orthogonal transform portion(100) performs an orthogonal transform process for each feature vector composing vector experts and expresses the feature vectors in an order of a low frequency feature to a high frequency feature. A quantization portion(101) quantizes the feature values of the orthogonal transform portion(100). A variable length coding portion(102) performs a variable length coding process for the quantized feature vector and the number of inputted feature values and stores the coded feature values in a feature value storage portion(103).