New vision tools from the comparative study of an "old" psychophysical and a "modern" computational model

Authors:
Kuntal Ghosh;Sandip Sarkar;Kamales Bhaumik
Affiliations:
Microelectronics Division, Saha Institute of Nuclear Physics, Kolkata-64, India;Microelectronics Division, Saha Institute of Nuclear Physics, Kolkata-64, India;Microelectronics Division, Saha Institute of Nuclear Physics, Kolkata-64, India
Venue:
BioADIT'06 Proceedings of the Second international conference on Biologically Inspired Approaches to Advanced Information Technology
Year:
2006

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Abstract

A comparative study has been made between a one and half century old psychophysical model of vision and a modern computational model. The Mach band illusion has been studied from a new angle, that led to concluding that a Bi-Laplacian of Gaussian operation is a likely possibility in the visual system along with the traditional Laplacian operation. As a follow-up to this, exploring the human visual system through a two-pronged approach, based on the two models mentioned above, has helped in the construction of a new image sharpening kernel, on one hand and possibilities of new algorithms for robust visual capturing and image halftoning and compression on the other.