scholarly journals Digital image processing techniques for detecting surface alteration - An application on the Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1983

Circular ◽  
1985 ◽  
pp. 56-58
Author(s):  
James York ◽  
Frederic H. Wilson ◽  
Bruce M. Gamble
Keyword(s):  
United States ◽  
Image Processing ◽  
Digital Image Processing ◽  
Digital Image ◽  
The United States ◽  
United States Geological Survey ◽  
Alaska Peninsula ◽  
Image Processing Techniques ◽  
Surface Alteration ◽  
Processing Techniques

Detecting Thread Features Based on Digital Image Processing Techniques

2014 ◽  
Vol 889-890 ◽  
pp. 1107-1110
Author(s):  
Han Ming Cai ◽  
Pei Yao Wang ◽  
Xiao Mei Song
Keyword(s):  
Image Processing ◽  
Digital Image Processing ◽  
Digital Image ◽  
Measurement Accuracy ◽  
Measuring Method ◽  
Image Processing Techniques ◽  
Basic Image ◽  
The Cost ◽  
Processing Techniques ◽  
Gauge Measurement

Thread features of the traditional measuring method mainly adopts working gauge measurement, due to limitations in the traditional thread features measurement accuracy is relatively low, the efficiency is low, the cost is high. The thread features detection method based on digital image processing techniques using CCD to obtain basic image of thread, processing the thread image, extracting thread outline, calculating thread features through the computer, improves the efficiency, saves the cost.

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