Image processing system for the measurement of timber truck loads

Fernando D. Carvalho; Bento A. Brazio Correia; Roger Davies; Fernando Carvalho Rodrigues; Jose Cabrita A. Freitas

doi:10.1117/12.138495

18 January 1993 Image processing system for the measurement of timber truck loads

Fernando D. Carvalho, Bento A. Brazio Correia, Roger Davies, Fernando Carvalho Rodrigues, Jose Cabrita A. Freitas

Proceedings Volume 1713, International Conference on Manufacturing Automation; (1993) https://doi.org/10.1117/12.138495
Event: International Conference on Manufacturing Automation, 1992, Hong Kong, Hong Kong

Abstract

The paper industry uses wood as its raw material. To know the quantity of wood in the pile of sawn tree trunks, every truck load entering the plant is measured to determine its volume. The objective of this procedure is to know the solid volume of wood stocked in the plant. Weighing the tree trunks has its own problems, due to their high capacity for absorbing water. Image processing techniques were used to evaluate the volume of a truck load of logs of wood. The system is based on a PC equipped with an image processing board using data flow processors. Three cameras allow image acquisition of the sides and rear of the truck. The lateral images contain information about the sectional area of the logs, and the rear image contains information about the length of the logs. The machine vision system and the implemented algorithms are described. The results being obtained with the industrial prototype that is now installed in a paper mill are also presented.

Citation Download Citation

Fernando D. Carvalho, Bento A. Brazio Correia, Roger Davies, Fernando Carvalho Rodrigues, and Jose Cabrita A. Freitas "Image processing system for the measurement of timber truck loads", Proc. SPIE 1713, International Conference on Manufacturing Automation, (18 January 1993); https://doi.org/10.1117/12.138495

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