Defining data equivalence for efficient access of images in a distributed environment
- Purdue Univ., West Lafayette, IN (United States)
Technologies such as the World Wide Web have resulted in the access of information over a global network. Data can be text, images, video, or sound. Current network limitations and the large size of data items result in a high response time - the time taken for an image to be transmitted from a remote site to the user. In this paper we focus on reducing this response time for images. Traditionally in an information system exact copies of text data items had to be retrieved for the user but multimedia data items such as video and images can be represented by an equivalent data item which is an approximation of the original data item. Such an equivalent data item might satisfy an application equally well and also have a lower response time. Based on the assumption that such an approximation of a data item is sufficient for several applications, we have developed an architecture where an image equivalent to the original can be retrieved instead of the original image itself. Our architecture has two layers to correspond to the two types of equivalence we define: (1) representation layer, and (2) information content layer. At the representation layer we discuss the tradeoff in using lossy compression and lossy communication. At the information content layer we discuss the usage of an equivalent data object which is semantically the same as the original. Our architecture provides support for the representation of several {open_quotes}equivalence levels{close_quotes} and we study the tradeoff of these equivalence level with response time.
- OSTI ID:
- 501584
- Report Number(s):
- CONF-961239-; CNN: Grant 9405931; TRN: 97:002723-0003
- Resource Relation:
- Conference: IDPT-2: 2. world conference on integrated design and process technology, Austin, TX (United States), 1-4 Dec 1996; Other Information: PBD: 1996; Related Information: Is Part Of Integrated design and process technology. Volume 1; Cooke, D.; Kraemer, B.J.; Sheu, P.C.Y.; Tsai, J.P.; Mittermeir, R. [eds.]; PB: 488 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Toward a Multimodal-Deep Learning Retrieval System for Monitoring Nuclear Proliferation Activities
Seeing and Reading Red: Hue and Color-word Correlation in Images and Attendant Text on the WWW