Proceedings of ScanTech 2001

The Ninth International Conference
On Scanning Technology and Process Optimization
For The Wood Industry

November 4-6, 2001
Holiday Inn, Seattle International Airport
Seattle, Washington, USA

Sponsored By Wood Machining Institute
In Cooperation with Forest Products Society
And The International Union of Forest Research Organizations

Table of Contents

Message from the Conference Chairman i
Conference Organizing Committee ii
Biographical Information About the Speakers and Moderators iii
Is Technology Adequate for Effective Scanning and Process Optimization? Rolf Birkeland, Professor, Department of Forest Sciences, Agricultural University of Norway, Aas, Norway. 3
Optimization of Wood Raw Material Conversion Through The Supply Chain. Arto Usenius, Professor, VTT Building and Transport, Finland. 9
The Implications of Using a CT-Based Scanner for Log Breakdown Optimization. Tim Rayner, R&D Director, WoodVision, InVision Technologies, Inc., Newark, CA, USA. 25
Automatic Detection of Pith and Annual Rings on Industrial Computed Tomography Log Images. Jean-Philippe Andreu and Alfred Rinnhofer, Joanneum Research, Institute of Digital Image Processing, Graz, Austria. 37
Using External Log Characteristics to Predict Internal Log Quality. Laszlo Orbay, Jan Brdicko, Forintek Canada Corp., Vancouver, B.C., Canada. 49
3D Log Scanning for Carriages, Lineal Curved Cants and Other Applications. Barry Dashner, LMI Technologies, Inc., Delta B.C., Canada. 61
3D Log Scanning On the Headrig Carriage. Jeff Franklin, Vice President, Inovec, Inc., Eugene, Oregon, USA 75
Developments in 3D Scanning and Optimization: Laser Radar and Carriage Application. Chris Blomquist, Perceptron, Plymouth, MI, USA. 83
Real-Time Value Optimization of Edging and Trimming Operations for Rough, Green Hardwood Lumber. Daniel L. Schmoldt, USDA Cooperative State Research, Education, and Extension Service; Hang Song, Dept. of Computer Science, Arizona State University; Philip A. Araman, USDA Forest Service, Southern Research Station. 87
Automatic Scanning of Rough Lumber for Edging and Trimming. Lynn Abbott, Bradley Department of Electrical and Computer Engineering, Virginia Tech; Daniel L. Schmoldt, USDA Cooperative State Research, Education, and Extension Service; Philip A. Araman, USDA Forest Service, Southern Research Station; Sang-Mook Lee, Bradley Department of Electrical and Computer Engineering, Virginia Tech. 101
3D and Scatter Measurements at More than 2,000 Board Feet/Minute Using CMOS Vision. Karl Gunnarsson, Vice President, Integrated Vision Products, Inc., Woodinville, WA. 111
Advances in Four Sided Cell Scan System Application in Primary and Secondary Wood Processing. G. (Sandy) Mullin, President, Dennis Cope, Manager, Scanning Products Division, Barr Mullin, Inc., Raleigh North Carolina, USA. 119
Ulti-Vision Scanners: Case Histories. LeRoy Cothrell, President, Ultimizers Inc., Boring, Oregon, USA. 127
Grade Scanning in Sawmill and Planning Mill Today. Sam Pope, COE Manufacturing Co., Portland, Oregon, USA. 133
Evaluation of an Automated Hardwood Lumber Grading System. D. Earl Kline1, Philip A. Araman2, Chris Surak3, 1Department of Wood Science and Forest Products, Virginia Tech, Blacksburg, Virginia; 2USDA Forest Service, Southern Research Station, Thomas M. Brooks Forest Products Center, Blacksburg, Virginia; 3Graduate Student, Department of Wood Science and Forest Products, Virginia Tech, Blacksburg, Virginia, USA. 141
Predicting the Strength of Sawn Products by Industrial X-ray Scanning of Norway Spruce Saw Logs. Johan Oja1, Bo Källsner2, Stig Grundberg3, 1Forintek Canada Corp., 2Swedish Institute For Wood Technology Research, 3Luleå University of Technology, Sweden. 153
Determining Lumber Strength with Radio Frequency Scanning. Philip H. Steele and Jerome E. Cooper, Department of Forest Products, Forest and Wildlife Research Center, Mississippi State University, Mississippi State, Mississippi, USA. 161
Ramifications and Implications of Various Color-based Optical Scanning Approaches. J.W. Funck, D.A. Butler, C.C. Brunner, J.B. Forrer, Forest Products Department, Oregon State University, Corvallis, Oregon, USA. 169
Scanning for Textural Surface Defects - A Robust System for Hardwood Parquet Inspection. Wolfgang Polzleitner, Gert Schwingshakl, Sensotech Research and Development, Gratz, Austria. 181

The Proceedings of ScanTech 2001 are available for U.S. $79 prepaid (California residents must add 8.25% sales tax) plus handling and shipping charges; $10 in USA, $14 to Canada, $20 to Europe, $25 to Australia and Japan. To order the proceedings, contact:

Wood Machining Institute
P. O. Box 476
Berkeley, CA 94507.   USA.

Telephone: (925)943-5240; Fax: (925) 945-0947