High-speed VLSI workpiece position measurement using normalized 2Dcorrelation

Fritz M. Rothacher; Norbert Felber; Hubert Kaeslin

doi:10.1117/12.171220

Translator Disclaimer

11 March 1994 High-speed VLSI workpiece position measurement using normalized 2Dcorrelation

Fritz M. Rothacher, Norbert Felber, Hubert Kaeslin

Author Affiliations +

Proceedings Volume 2183, Machine Vision Applications in Industrial Inspection II; (1994) https://doi.org/10.1117/12.171220
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

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.

Citation Download Citation

Fritz M. Rothacher, Norbert Felber, and Hubert Kaeslin "High-speed VLSI workpiece position measurement using normalized 2Dcorrelation", Proc. SPIE 2183, Machine Vision Applications in Industrial Inspection II, (11 March 1994); https://doi.org/10.1117/12.171220

ACCESS THE FULL ARTICLE