Sökning: "Johan Oja"

Hittade 2 avhandlingar innehållade orden Johan Oja.

1. 1. Measuring knots and resin pockets in CT-images of Norway spruce

   Författare :Johan Oja; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

   Sammanfattning : .... LÄS MER

3. 2. X-ray measurement of properties of saw logs

   Författare :Johan Oja; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

   Sammanfattning : A nondestructive method of measuring knot parameters for research purposes has been compared to alternative, destructive methods. The method is based on automatic analysis of CT-images. The image analysis algorithms were adjusted to and evaluated on Norway spruce. LÄS MER