• Journal of Korea Multimedia Society
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• v.3 no.3
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• pp.209-223
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• 2000

As the importance and utilization of multimedia data increases, it becomes necessary to represent and manage multimedia data within database systems. In this paper, we designed and implemented an image retrieval system which support efficient management and intelligent retrieval of image data using concept hierarchy and data mining techniques. We stored the image information intelligently in databases using concept hierarchy. To support intelligent retrievals and efficient web services, our system automatically extracts and stores the user information, the user's query information, and the feature data of images. The proposed system integrates user metadata and image metadata to support various retrieval methods on image data.

• The Transactions of the Korea Information Processing Society
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• v.5 no.9
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• pp.2233-2247
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• 1998

With the growth of World Wide Web, multimedia electronic documents have been frequently used in a lot of applications. Especially, digital libraries tliat deal with huge and various multimedia electronic documents need to support efficient searcli techniques and systematical management techniques. In this paper, we suggest an extended Dublin Core metadata to store and search the multimedia electronic documents managed at digital libraries. We also design a document database schema based on the extended Dublin Core metadata and implement a svstem, called xD-MMS which manages the multimedia electronic documents.

• Proceedings of the Korea Society for Simulation Conference
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• 2005.11a
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• pp.180-184
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• 2005

These days, home network connects all home appliances using one of broadband convergence network, is constructed and propagated to more than 10 million house hold. Users can monitor and control statuses of home appliances using mobile terminal through homeserver. For active propagation of home network, high-quality multimedia service is very important. Specially, as digital recorder and digital camera is propagated, new paradigm that private DVDs can be shared in many household shows up. The homeserver is the main part of UbiHome, which can store much multimedia content and through which the user can search and share these contents. For searching and sharing, the metadata of contents is supposed to keep the consistency. These metadata include the description to different format such as Image, movie, and music. Therefore, we intend to provide a RDF model for effectively storing, searching and managing high-quality contents in UbiHome. In this paper, we propose to make Ontology to close semantic approach using RDF/RDF Schema for managing multimedia data in UbiHome. we propose RDF-Based Local Ontology and merging these ontology to RDF-Based Global Ontology.

• Journal of Korea Multimedia Society
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• v.8 no.8
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• pp.1032-1041
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• 2005

Now a days, PACS and the other image sharing systems use only high-level metadata for hospital to retrieve images. So if you want to retrieve some images, you have to know exact information about the patient. In this paper, we developed a Image Retrieval System based on MPEG-7 to retrieve medical images more efficiently. This system offers keyword retrieval using high-level metadata based of DICOM and similarity retrieval using low-level metadata based on MFEG-7. And we integrated high-level metadata and low-level metadata to retrieve medical images more exactly.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.175-177
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• 2004

이 논문에서는 상이한 형식의 멀티미디어 메타데이터를 통합하기 위해서 통합 메타데이터를 정의하기 위해서 기존의 표준 멀티미디어 정보에 대한 다루고 있는 MPEG-7 MDS(Multimedia Description Scheme)와 TV-Anytime을 비교 분석하였다. 이렇게 정의한 메타데이터는 분산된 이종의 멀티미디어 자원을 의미적으로 통합하는 데에 사용될 수 있다. 아울러 이 메타데이터를 기반으로 향후 온톨로지를 정의하고 이를 기반으로 한 추론을 가능하게 해 상황인지 기반 멀티미디어 서비스를 지원하는 데에도 활용될 수 있다.

• IEMEK Journal of Embedded Systems and Applications
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• v.2 no.1
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• pp.1-8
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• 2007

In this paper, we developed a file system architecture for portable multimedia devices. To enhance user convenience, the information about the stored files should be easily retrieved and organized. We defined NMD (Networked MetaData), which can organize the files in networked fashion by attaching user-defined attributes and relation between files. The NMD is stored in flash memory to utilize its nonvolatile property and low-power consumption, while multimedia files are stored in hard disk, an inexpensive mass storage. The experimental implementation showed that this architecture was able to save about 10% power compared to the hard disk NMD-store.

• The KIPS Transactions:PartD
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• v.14D no.6
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• pp.573-584
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• 2007

As multimedia information recently increases fast, various types of retrieval of multimedia data are becoming issues of great importance. For the efficient multimedia data processing, semantics based retrieval techniques are required that can extract the meaning contents of multimedia data. Existing retrieval methods of multimedia data are annotation-based retrieval, feature-based retrieval and annotation and feature integration based retrieval. These systems take annotator a lot of efforts and time and we should perform complicated calculation for feature extraction. In addition. created data have shortcomings that we should go through static search that do not change. Also, user-friendly and semantic searching techniques are not supported. This paper proposes to develop S-MARS(Semantic Metadata-based Multimedia Annotation and Retrieval System) which can represent and extract multimedia data efficiently using MPEG-7. The system provides a graphical user interface for annotating, searching, and browsing multimedia data. It is implemented on the basis of the semantic metadata model to represent multimedia information. The semantic metadata about multimedia data is organized on the basis of multimedia description schema using XML schema that basically comply with the MPEG-7 standard. In conclusion. the proposed scheme can be easily implemented on any multimedia platforms supporting XML technology. It can be utilized to enable efficient semantic metadata sharing between systems, and it will contribute to improving the retrieval correctness and the user's satisfaction on embedding based multimedia retrieval algorithm method.

• The Journal of Korean Association of Computer Education
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• v.7 no.2
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• pp.25-34
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• 2004

Sixteen provincial Research Institute of Education and Science(RISE) in the country have provided good qualified multimedia educational materials that was produced by some special skilled teachers to elementary, middle and high school teachers using web services. And moreover KERIS and KICE have also produced educational materials and have a plan to integrate distributed multimedia educational materials that RISE produced. The development of KERIS's KEM metadata in 2001 and the making of educational material metadata of RISE is the first step of integration plan. These metadata can be used to make integration plan possible. But before taking integration plan, the study of how to integrate and manage it should be performed. Therefore, this paper introduces the technique of XML web service and JDBC with 3-tier system as the method of integrate distributed educational material metadata. The evaluation shows these two methods have similar response time with MS SQL Server 2000 and Oracle 9i. Thus, we conclude that JDBC and XML web service can be the proper solution to search XML-formatted metadata.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2001.11b
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• pp.233-236
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• 2001

Due to the current limitation on network bandwidth, it is difficult to get the video files of interests from the server by downloading/streaming. To solve this problem, we propose a scheme for generating a virtual single video in the client side by downloading the selected video segments and the corresponding metadata from the server. Our system is based MPEG-7 standard on the multimedia metadata. The experimental system demonstrates the feasibility of our approach.

• Journal of Broadcast Engineering
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• v.11 no.3 s.32
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• pp.276-283
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• 2006

This paper analyzes metadata workflow from creation to browsing, and discusses metadata authoring and browsing technology. Unlike usual multimedia authoring, broadcast metadata authoring means metadata editing synchronized with video. In order to make practical application of other systems, the result is in XML or MXF(Material eXchange Format) based on common metadata scheme. The MXF Browser developed with the consideration of broadcast metadata that is time-synchronized with AV content provides not only metadata authoring capability but also advanced content browsing services such as summary playback and highlight browsing based on metadata multi-track.