MULTIMEDIA '00Pub Date : 2000-11-04DOI: 10.1145/357744.357948
S. Ioannou, G. Moschovitis, K. Ntalianis, K. Karpouzis, S. Kollias
{"title":"Effective access to large audiovisual assets based on user preferences","authors":"S. Ioannou, G. Moschovitis, K. Ntalianis, K. Karpouzis, S. Kollias","doi":"10.1145/357744.357948","DOIUrl":"https://doi.org/10.1145/357744.357948","url":null,"abstract":"Current multimedia databases contain a wealth of information in the form of audiovisual, as well as text data. Even though efficient search algorithms have been developed for either media, there still exists the need for abstract presentation and summarization of the results of database users' queries. Moreover, multimedia retrieval systems should be capable of providing the user with additional information related to the specific subject of the query, as well as suggest other topics which users with a similar profile are interested in. In this paper, we present a number of solutions to these issues, giving as an example an integrated architecture we have developed, along with notions that support efficient and secure Internet access and easy addition of new material. Segmentation of the video in shots is followed by shot classification in a number of predetermined categories. Generation of users' profiles according to the same categories, enhanced by relevance feedback, permits an efficient presentation of the retrieved video shots or characteristic frames in terms of the user interest in them. Moreover, this clustering scheme assists the notion of “lateral” links that enable the user to continue retrieval with data of similar nature or content to those already returned. Furthermore, user groups are formed and modeled by registering actual preferences and practices; this enables the system to “predict” information that is possibly relevant to specific users and present it along with the returned results. The concepts utilized in this system can be smoothly integrated in MPEG-7 compatible multimedia database systems.","PeriodicalId":234597,"journal":{"name":"MULTIMEDIA '00","volume":"49 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120915913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MULTIMEDIA '00Pub Date : 2000-11-04DOI: 10.1145/357744.357751
F. Nack, C. Lindley
{"title":"Production and maintenance environments for interactive audio-visual stories","authors":"F. Nack, C. Lindley","doi":"10.1145/357744.357751","DOIUrl":"https://doi.org/10.1145/357744.357751","url":null,"abstract":"1. I N T R O D U C T I O N Storytelling is a pervasive aspect within our life because it helps to shape our experience by structuring events encountered in our everyday reality. Narrating means making a comment about a certain event, following an idea about the medium and form of presentation, which is grounded in one's own motivational and psychological attributes. Narrating is a targeted phenomenon. There is a receiver and the narrator's perception of him or her may have an impact on the outcome of the story. Moreover, both narrator and receiver do not exist in a vacuum but share a social environment, which adds extra structures to the narrational process. Thus, narration is a dynamic process of interaction in a partly given social context, where 'the interaction encompasses ... the communicator, the content, the audience and the situation' [12, p. 209].","PeriodicalId":234597,"journal":{"name":"MULTIMEDIA '00","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123716996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MULTIMEDIA '00Pub Date : 2000-11-04DOI: 10.1145/357744.357757
C. Christopoulos, T. Ebrahimi, A. Skodras
{"title":"JPEG2000: the new still picture compression standard","authors":"C. Christopoulos, T. Ebrahimi, A. Skodras","doi":"10.1145/357744.357757","DOIUrl":"https://doi.org/10.1145/357744.357757","url":null,"abstract":"This paper presents an overview of the upcoming JPEG2000 still picture compression standard. JPEG2000 is not only intended to provide rate-distortion and subjective image quality performance superior to existing JPEG standard, but to also provide functionality that the current JPEG standard can either not address efficiently nor address at all. Lossless and lossy compression, encoding of very large images, progressive transmission by pixel accuracy and by resolution, robustness to the presence of bit-errors and region-of-interest coding, are some representative examples of its features.","PeriodicalId":234597,"journal":{"name":"MULTIMEDIA '00","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115305912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MULTIMEDIA '00Pub Date : 2000-11-04DOI: 10.1145/357744.357883
G. Ashour, A. Amir, D. Ponceleón, S. Srinivasan
{"title":"Architecture for varying multimedia formats","authors":"G. Ashour, A. Amir, D. Ponceleón, S. Srinivasan","doi":"10.1145/357744.357883","DOIUrl":"https://doi.org/10.1145/357744.357883","url":null,"abstract":"In recent years, a few transitions in multimedia applications may be observed. We can identify at least two trends. Firstly, multimedia is being introduced in mainstream applications, leaving behind its traditional focus on highly professional markets, and on the gaming enhancement arena. Secondly, standardization bodies continue to work on media standards in order to provide a common approach to enable interoperability, better quality and efficiency under specified constraints. These new media standards are then added to existing archives of media, spanning a broad spectrum of legacy media standards. The result of these two trends is that a typical multimedia application, in order to be effective, needs to support many input types and provide the user with a seamless and transparent behavior. This paper discusses a pragmatic approach to this problem based on the object-oriented paradigm for real-world multimedia applications.","PeriodicalId":234597,"journal":{"name":"MULTIMEDIA '00","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115002488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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