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Computer Graphics, Imaging and Visualisation (CGIV 2007)
A 3D-Hash Function for Fast Image Indexing and Retrieval
Bangkok, Thailand
August 14-August 17
ISBN: 0-7695-2928-3
Muhamamd Shahazad Mughal, COMSATS Institute of Information Technology, Pakistan
M. Nawaz, COMSATS Institute of Information Technology, Pakistan
Farhan Ahmad, COMSATS Institute of Information Technology, Pakistan
Saadia Shahzad, COMSATS Institute of Information Technology, Pakistan
A.K. Bhatti, COMSATS Institute of Information Technology, Pakistan
S. Mohsin, COMSATS Institute of Information Technology, Pakistan
Image retrieval on the basis of similarity is an important task in many image database applications. Majority of the users? requests requires retrieving those images in the database that are spatially similar to the query image. In image databases, images are represented by symbolic images. Spatial relationships in a symbolic image are represented by 2D strings.

In Image Database Systems, conventionally 2D strings that are converted into triples represent symbolic pictures or objects. A unique hash address is assigned to each triple, which represents the picture. It serves the purpose of retrieval of images by reducing pattern matching.

The calculation of new unique hash keys for all triples is required while inserting new image. In order to overcome these problems we present a solution in this paper that is the concept of a 3D hash function which speeds up the computation of the associated values for the picture objects.

Index Terms:
Image database systems, 2D string, perfect hashing function, 3D hash function, image retrieval
Citation:
Muhamamd Shahazad Mughal, M. Nawaz, Farhan Ahmad, Saadia Shahzad, A.K. Bhatti, S. Mohsin, "A 3D-Hash Function for Fast Image Indexing and Retrieval," cgiv, pp.341-348, Computer Graphics, Imaging and Visualisation (CGIV 2007), 2007
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