MPEG-7 Query Structure for Multimedia Retrieval
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Solution Overview
Problem
Conventional MPEG-7 query formats cannot clearly represent the reference to multiple MPEG-7 documents, making it difficult to satisfy multiple retrieval conditions within the same structure, which limits the accuracy of multimedia content retrieval.
Innovation Solution
A method and apparatus that utilize indicators and references to specifically represent regions within MPEG-7 documents, allowing for precise analysis and retrieval of multimedia contents by transforming user queries into MPEG-7 query format using XML schema, enabling clear representation of multiple document references and conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional MPEG-7 query formats are used, then the system can retrieve multimedia contents with basic queries, but it cannot clearly represent reference to multiple MPEG-7 documents simultaneously
Solution Approach 1:
The patent implements nesting by placing indicator elements within reference elements. Each reference can contain multiple indicators that point to specific regions within the referenced MPEG-7 document. This nested structure allows the query to clearly represent references to multiple documents while maintaining information accuracy about which specific regions are being queried.
Solution Approach 2:
The patent segments the query structure into distinct reference elements and indicator elements. Each reference element represents a separate MPEG-7 document reference, while indicator elements within each reference specify particular regions. This segmentation enables clear representation of multiple document references and their respective regions, resolving the limitation of conventional formats.
2Adaptability or versatility
If multiple retrieval conditions are satisfied within the same structure, then query completeness is improved, but clarity of document reference representation deteriorates
Solution Approach 1:
The patent divides the query into separate reference elements, where each reference element independently represents one MPEG-7 document. Within each reference element, multiple indicator elements can specify different regions. This segmentation maintains document reference clarity while allowing multiple retrieval conditions to be satisfied within each referenced document's structure.
Data Source
AI summary
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.