MEASUREMENT OF WOOD QUALITY PARAMETERS FROM ANNUAL RINGS USING COLOR ANALYSIS WITH DIGITAL IMAGES
Petri Österberg, Heimo Ihalainen, Risto Ritala
Abstract:
In this paper we present an image analysis method which provides wood quality parameters from board and log end images. Our analysis recognizes annual rings in prepared cutting surface despite of varying color pattern or lighting. After locating annual rings accurately, proportions of earlywood and latewood can be measured globally and locally in the image. Our method is based on combining moving window to principle component analysis (PCA). Furthermore, we apply various filtering methods to enhance result matrixes.
Keywords:
Image Analysis, Wood Quality, PCA, annual rings
Download:
PWC-2006-TC14-042u.pdf
DOI:
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Event details
Event name:
XVIII IMEKO World Congress
Title:

Metrology for a Sustainable Development

Place:
Rio de Janeiro, BRAZIL
Time:
17 September 2006 - 22 September 2006
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