Earticle

초록

영어

This paper deals about image processing of log internal decays using MATLAB technique. Specifically, image enhancement, image edge detection and decay area extraction and calculation on the two-dimension image of log inner decays that were derived by using the non-destructive inspection technique of stress wave were conducted. The results showed that the testing image of stress wave can visually reflect wood inner decay, and the image resolution can also be improved by using the functions of image enhancement and edge detection in MATLAB software. The detection precision of stress wave is closely associated with the ratio of log internal decay area to tested wood cross-sectional area. When the ratio between wood actual inner decay area and tested log cross-sectional area increased from 4.77% to 45.52%, the relative error between tested decay area and actual decay area reduced from 16.42% to 7.39%. The study has provided an advanced method to judge the degree of wood inner decay for most forest practioners and researchers. Through the image processing and computing on the images derived by stress wave testing, the accuracy of logs internal decay discrimination can be significantly improved.

목차

Abstract
 1. Introduction
 2. Stress Wave Testing
  2.1. Testing System
  2.2. Testing System
 3. Log Image Processing
  3.1. Image Enhancement Processing
  3.2. Edge Detection and Processing
 4. Recognition and Calculation of Log Inner Decay
 5. Conclusions
 Acknowledgements
 References

키워드

저자

• Wenshu Lin [ College of Engineering and Technology, Northeast Forestry University, Harbin 150040, China ]
• Jinzhuo Wu [ College of Engineering and Technology, Northeast Forestry University, Harbin 150040, China ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Signal Processing, Image Processing and Pattern Recognition

• 간기

  격월간

• pISSN

  2005-4254

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605