Real-Time Symbol Extraction From Grey-Level Images

R Massen; M Simnacher; J Rosch; E Herre; H W Wuhrer

doi:10.1117/12.943381

11 April 1988 Real-Time Symbol Extraction From Grey-Level Images

R Massen, M Simnacher, J Rosch, E Herre, H W Wuhrer

Proceedings Volume 0860, Real-Time Image Processing: Concepts and Technologies; (1988) https://doi.org/10.1117/12.943381
Event: 1987 Symposium on the Technologies for Optoelectronics, 1987, Cannes, France

Abstract

A VME-bus image pipeline processor for extracting vectorized contours from grey-level images in real-time is presented. This 3 Giga operation per second processor uses large kernel convolvers and new non-linear neighbourhood processing algorithms to compute true 1-pixel wide and noise-free contours without thresholding even from grey-level images with quite varying edge sharpness. The local edge orientation is used as an additional cue to compute a list of vectors describing the closed and open contours in real-time and to dump a CAD-like symbolic image description into a symbol memory at pixel clock rate.

Citation Download Citation

R Massen, M Simnacher, J Rosch, E Herre, and H W Wuhrer "Real-Time Symbol Extraction From Grey-Level Images", Proc. SPIE 0860, Real-Time Image Processing: Concepts and Technologies, (11 April 1988); https://doi.org/10.1117/12.943381

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