Electronics and Telecommunications Research Institute

Konkuk University Industrial Cooperation Corp

Hee-Cheol Seo

Jeong Mu Heo

Myung-Gil Jang

Hyun-Ki Kim

Soo-Jong Lim

Mi-Ran Choi

Yeo-Chan Yoon

Kyoung-Ro Yoon

Soo-Jun Park

Yi-Gyu Hwang

Disclosed is an apparatus and method for expressing a query for searching multimedia data. The apparatus and method of the present invention expresses diverse query types in MPEG-7 query formats and uses field types to reuse a designated region. The apparatus for expressing a query inputted from a user for multimedia data search includes: an input means for receiving a query for multimedia data search from a user; and a query expression means for expressing the input query in a field type, wherein the field type includes at least one among identifier information indicating identification (ID) information of a field presenting a search condition included in the input query; type information indicating data type information of the field; and reference information indicating identifier information of another field for reference. The present invention is applied to MPEG-7 query formats.

Apparatus and method for a query express

Disclosed is an apparatus and method for retrieving multimedia contents represented in a Moving Picture Experts Group (MPEG) 7 by transforming a user query into an MPEG-7 query format. The method for retrieving multimedia contents includes: representing a user query by using an indicator indicating a specific region of a Moving Picture Experts Group 7 (MPEG-7) document and a reference for referring to the indicator; analyzing a meaning of the user query represented by using the indicator and the reference to thereby produce an analysis result; and retrieving multimedia contents according to the analysis result. The present research can satisfy more than two retrieval conditions within the same structure in an MPEG-7 query format and it can also clearly represent that two different MPEG-7 documents are referred to. Since the meaning of a user query is analyzed accurately during retrieval process, it is possible to precisely retrieve multimedia contents.

Method and apparatus for retrieving multimedia contents

Provided are an apparatus and method for searching multimedia data based on metadata. The apparatus for searching multimedia data includes: a mapping information storing unit for storing and managing mapping information between a Moving Picture Experts Group 7 (MPEG-7) query attribute and an MPEG-7 metadata property; and a query attribute mapping unit for acquiring the MPEG-7 metadata property to be mapped with the MPEG-7 query attribute according to a user query based on the mapping information.

Apparatus and method for searching multimedia data based on metadata

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Daejon, South Korea

Hee-Cheol Seo