Projeto de um ASIC para extração de vértices de imagens em tempo real.

Abstract

Polygonal modelling is a method used in digital image processing for object segmentation. Based on vertices extracted from a scene i t produces models that can be applied in visual recognition tasks and in video compression. A data-flow algorithm for vertex extraction from pre-processed contour images was implemented in a VLSI circuit in order to obtain polygonal models. The algorithm is based on Hough Transform and detects i f an 8x8 image window contains e vertex or not. Simulation results of the proposed arquitecture show that the polygonal models can be produced at high processing rate, turning the circuit ideal for real time aplications.