VLSI Implementation of Linear Diffusion

Abstract

Linear diffusion is the cornerstone on which the primitives defined in the previous chapter are built. Its most prominent feature, in terms of image processing, is the programmability of its inherent Gaussian filtering. Indeed, the VLSI implementation of user-defined image Gaussian filtering has been already explored in the literature. Most of the approaches reported make use of the ability of CMOS processes to integrate signal processing circuitry with pure imaging. Thus, they achieve massively parallel focal-plane processing, delivering the same result as a digital processor but in a much more efficient way.