Title :
Use of image processing for the measurement of orientation with application to automated fish processing
Author :
Gamage, L.B. ; de Silva, C.W.
Author_Institution :
Ind. Autom. Lab., British Columbia Univ., Vancouver, BC, Canada
Abstract :
The authors examine the concept of the orientation of a 2D object from three points of view; a direct axis of geometric shape, the principal axis defined in terms of the principal second movements of area, and the major axis of the fundamental ellipse fitting the boundary of the object. The three methods are implemented on a vision workstation and applied to samples of Pacific salmon. The results are compared with direct measurement orientation. The three methods of orientation measurement are evaluated quantitatively using these results, with respect to accuracy, speed of measurement and appropriateness under various practical conditions
Keywords :
computerised pattern recognition; computerised picture processing; engineering workstations; food processing industry; industrial computer control; 2D object; Pacific salmon; accuracy evaluation; automated fish processing; fundamental ellipse; geometric shape; image processing; measurement speed; object boundary; orientation measurement; vision workstation; Automation; Head; Image processing; Image segmentation; Laboratories; Marine animals; Mechanical engineering; Mechanical variables measurement; Position measurement; Workstations;
Conference_Titel :
Industrial Electronics Society, 1990. IECON '90., 16th Annual Conference of IEEE
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-87942-600-4
DOI :
10.1109/IECON.1990.149187
