Spatial transformation architectures with applications: an introduction

Mark S. Schmalz

doi:10.1117/12.150981

27 August 1993 Spatial transformation architectures with applications: an introduction

Mark S. Schmalz

Author Affiliations +

Proceedings Volume 1961, Visual Information Processing II; (1993) https://doi.org/10.1117/12.150981
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Spatial transformations (STs) constitute an important class of image operations, which include the well-known affine transformation, image rotation, scaling, warping, etc. Less well known are the anisomorphic transformations among cartographic projections such as the Mercator, gnomonic, and equal-area formats. In this preliminary study, we introduce a unifying theory of spatial transformation, expressed in terms of the Image Algebra, a rigorous, inherently parallel notation for image and signal processing. Via such theory, we can predict the implementational cost of various STs. Since spatial operations are frequently I/O-intensive, we first analyze the I/O performance of well-known architectures, in order to determine their suitability for ST implementation. Analyses are verified by simulation, with emphasis upon vision-based navigation applications. An additional applications area concerns the remapping of visual receptive fields, which facilitates visual rehabilitation in the presence of retinal damage.

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Mark S. Schmalz "Spatial transformation architectures with applications: an introduction", Proc. SPIE 1961, Visual Information Processing II, (27 August 1993); https://doi.org/10.1117/12.150981

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