PARTS COLOR MATCHING SCANNER FOR EDGE GLUING —RESEARCH THAT WORKS

This paper presents an automatic color sorting system for hardwood edge-glued panel parts. The color sorting system simultaneously examines both faces of a panel part and then determines which face has the “best” color given specified color uniformity and priority defined by management. The real-time color sorting system hardware and color matching hardware is briefly described. An actual working system has undergone extensive plant testing capable of sorting red oak panel parts into a number of color classes at plant production speeds. The system has been developed by Virginia Tech in cooperation with NOVA Technologies and is currently being marketed by Sutton Woodworking Machinery Company.

[1]  Richard W. Conners,et al.  MORRPH: a modular and reprogrammable real-time processing hardware , 1995, 1995 Proceedings of the IEEE International Symposium on Industrial Electronics.

[2]  Richard W. Conners,et al.  A MOdular and Reprogrammable Real-time Processing Hardware, MORRPH , 1995, Proceedings IEEE Symposium on FPGAs for Custom Computing Machines.

[3]  John E. Phelps,et al.  Improving visual color sorting of dimension stock , 1995 .

[4]  Alexander A. Sawchuk,et al.  Real-Time Correction of Intensity Nonlinearities in Imaging Systems , 1977, IEEE Transactions on Computers.

[5]  Paul S. Heckbert Color image quantization for frame buffer display , 1982, SIGGRAPH.

[6]  Richard O. Duda,et al.  Pattern classification and scene analysis , 1974, A Wiley-Interscience publication.

[7]  HeckbertPaul Color image quantization for frame buffer display , 1982 .