Interactive feature extraction and tracking by utilizing region coherency

Author(s):  
Chris Muelder ◽  
Kwan-Liu Ma



Author(s):  
Yasuhiro Yoshioka ◽  
Yoshiyuki Furukawa ◽  
Hiroshi Masuda


2011 ◽  
Vol 8 (5) ◽  
pp. 785-793 ◽  
Author(s):  
Mao Zhihong ◽  
Kunwoo Lee ◽  
Cao Guo ◽  
Ma Yanzhao


2006 ◽  
Vol 6 (4) ◽  
pp. 422-424 ◽  
Author(s):  
K. Schreve ◽  
C. L. Goussard ◽  
A. H. Basson ◽  
D. Dimitrov

In feature based reverse engineering entities, or features, having higher level engineering meaning are used to approximate point data. This is in contrast to approximating the data with free form NURBS surfaces. Currently no such system is operationally available. Interactive feature based modeling tools for feature extraction, edge detection, and draft angle approximation are presented here. Several case studies demonstrate the application of these algorithms.



Author(s):  
Parivash Pirasteh ◽  
Slawomir Nowaczyk ◽  
Sepideh Pashami ◽  
Magnus Löwenadler ◽  
Klas Thunberg ◽  
...  


1974 ◽  
Author(s):  
L. Wilcox ◽  
W. Barnett


Author(s):  
J.P. Fallon ◽  
P.J. Gregory ◽  
C.J. Taylor

Quantitative image analysis systems have been used for several years in research and quality control applications in various fields including metallurgy and medicine. The technique has been applied as an extension of subjective microscopy to problems requiring quantitative results and which are amenable to automatic methods of interpretation.Feature extraction. In the most general sense, a feature can be defined as a portion of the image which differs in some consistent way from the background. A feature may be characterized by the density difference between itself and the background, by an edge gradient, or by the spatial frequency content (texture) within its boundaries. The task of feature extraction includes recognition of features and encoding of the associated information for quantitative analysis.Quantitative Analysis. Quantitative analysis is the determination of one or more physical measurements of each feature. These measurements may be straightforward ones such as area, length, or perimeter, or more complex stereological measurements such as convex perimeter or Feret's diameter.



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