Colour identification and quality inspection system for agricultural produce

Author

Gunawardena, C.A. ; Dennis, T.J. ; Clark, L.J.

Author_Institution

Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK

fYear

1990

fDate

12-14 Aug 1990

Firstpage

657

Abstract

A system has been developed in which color detection is one aspect of an overall quality inspection process. In a typical application, the system can sort and route tomatoes to five output grades according to their ripeness and size. A CCD color television camera inspects the produce passing on a conveyor or rotating rollers. Color quality in an early prototype was determined by matrixing and digitization followed by a two-dimensional lookup table process. The two-dimensional lookup table has now been replaced by a three-dimensional lookup table which can be used to define 262132 or 2¹⁸ unique colors

Keywords

agriculture; automatic optical inspection; closed circuit television; colour television cameras; computerised picture processing; CCD color television camera; agricultural produce; colour identification; conveyor; digitization; matrixing; quality inspection system; rotating rollers; three-dimensional lookup table; tomato grading; tomato ripeness; tomato size; tomatoes; two-dimensional lookup table; Agricultural engineering; Cameras; Charge coupled devices; Color; Inspection; Logic arrays; Shape; Systems engineering and theory; TV; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1990., Proceedings of the 33rd Midwest Symposium on

Conference_Location

Calgary, Alta.

Print_ISBN

0-7803-0081-5

Type

conf

DOI

10.1109/MWSCAS.1990.140804

Filename

140804