1. A multimedia information retrieval method, comprising steps of: extracting a voice of multimedia to be retrieved from multimedia to be retrieved; recognizing the voice of the multimedia to be retrieved to obtain a recognized text; and retrieving multimedia information of the multimedia to be retrieved in a multimedia database according to the recognized text, wherein, retrieving multimedia information of the multimedia to be retrieved in the multimedia database according to the recognized text comprises: performing word segmentation on the recognized text according to a preset word library to obtain a plurality of undetermined recognition codes; determining a plurality of recognition codes according to word occurrence frequencies of the undetermined recognition codes in the word library; and retrieving the plurality of recognition codes in the multimedia database to obtain the multimedia information of the multimedia to be retrieved.
1. A multimedia information retrieval method, comprising steps of: extracting a voice of multimedia to be retrieved from multimedia to be retrieved; recognizing the voice of the multimedia to be retrieved to obtain a recognized text; and retrieving multimedia information of the multimedia to be retrieved in a multimedia database according to the recognized text, wherein, retrieving multimedia information of the multimedia to be retrieved in the multimedia database according to the recognized text comprises: performing word segmentation on the recognized text according to a preset word library to obtain a plurality of undetermined recognition codes; determining a plurality of recognition codes according to word occurrence frequencies of the undetermined recognition codes in the word library; and retrieving the plurality of recognition codes in the multimedia database to obtain the multimedia information of the multimedia to be retrieved. 2. The method according to claim 1 , wherein, the undetermined recognition codes comprise at least one of Chinese characters, Pinyin or English words.