Charles Ben Cranston

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Many organizations require geographic data originating from diverse sources in their day-today operations. It is often impractical to maintain on-site a complete database, due to issues of ownership, the sheer size of the data, or its dynamic nature. OpenMap TM is a distributed mapping system that allows displaying together geographic data acquired from(More)
An iconic image database is a collection of symbolic images where each image is a collection of labeled point features called icons. A method is presented to support fast position-independent similarity search in an iconic database for symbolic images where the similarity condition involves finding icon pairs that satisfy a specific spatial relationship.(More)
Database search for images containing icons with specific mutual spatial relationships can be facilitated by an appropriately structured index. For the case of images containing subsets each of which consist of three icons, the one-to-one correspondence between (distinct) point triples and triangles allows the use of such triangle attributes as position,(More)
Many organizations require geographic data originating from diverse sources in their day-today operations. It is often impractical to maintain on-site a complete database, due to issues of ownership, the sheer size of the data, or its dynamic nature. OpenMap TM is a distributed mapping system that allows displaying together geographic data acquired from(More)
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