A system for visual control of wood imperfections

Janez Udovič (2015) A system for visual control of wood imperfections. EngD thesis.

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Abstract

The objective of this thesis is to present a prototype of an optical wood control system, concretely, an optical measurement system for bamboo boards intended for parquet ﬂooring. We used The Imaging Source DFK 23G018 color cameras for optical detection and measurement. In this thesis we present four methods for processing the images of wooden boards. The ﬁrst method ﬁnds the edges of the boards and measures individual dimensions. By knowing the exact position of the boards in the images, the remaining three methods detect holes in the boards and diﬀerent kinds of imperfections and sort the boards into appropriate color groups. To simulate the control part of the process line we used a step actuator. The functionality and the management of the actuator are also explained.

Item Type:

Thesis (EngD thesis)

Keywords:

optical measurement, wood imperfection detection, computer vision, step actuator

Number of Pages:

Language of Content:

Slovenian

Mentor / Comentors:

Name and Surname	ID	Function
prof. dr. Franc Solina	71	Mentor

Link to COBISS:

http://www.cobiss.si/scripts/cobiss?command=search&base=51012&select=(ID=1536301507)

Institution:

University of Ljubljana

Department:

Faculty of Computer and Information Science

Item ID:

2976

Date Deposited:

09 Apr 2015 15:46

Last Modified:

19 May 2015 08:50

URI:

http://eprints.fri.uni-lj.si/id/eprint/2976

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