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Proceedings Paper

High-speed VLSI workpiece position measurement using normalized 2Dcorrelation
Author(s): Fritz M. Rothacher; Norbert Felber; Hubert Kaeslin
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Paper Abstract

For workpiece recognition, the image processing unit of an assembly robot must be fast and reliable. To improve an already existing system, we implemented an ASIC for real-time image correlation from a standard video image based on an investigation of several algorithms for 2D grayscale image correlation. The architecture contains four parallel multipliers and uses a three- level pipelining schema. The ASIC, which is realized in a standard and macrocell technique, achieves a sustained performance of 16 X 106 MAC/s. A speed-up factor of 12 compared to a DSP56116 implementation at the same clock speed is obtained.

Paper Details

Date Published: 11 March 1994
PDF: 9 pages
Proc. SPIE 2183, Machine Vision Applications in Industrial Inspection II, (11 March 1994); doi: 10.1117/12.171220
Show Author Affiliations
Fritz M. Rothacher, Swiss Federal Institute of Technology Zuerich (Switzerland)
Norbert Felber, Swiss Federal Institute of Technology Zuerich (Switzerland)
Hubert Kaeslin, Swiss Federal Institute of Technology Zuerich (Switzerland)


Published in SPIE Proceedings Vol. 2183:
Machine Vision Applications in Industrial Inspection II
Benjamin M. Dawson; Stephen S. Wilson; Frederick Y. Wu, Editor(s)

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