|Subpixel edge location using improved LSR|
|Yi Mo; Liu Zhongxuan; Peng Silong; Mo Yi
|Conference Name||2005 IEEE Networking Sensing and Control ICNSC2005
|Conference Place||United statesTucson AZ United states
|Abstract||Subpixel methodsfor edge location are of significant
hpFtaoee in computer vision and other applications. Such
methodsoffenuse local surfacemodelsor polynomial approximation for a local neighborhoodto obtain the subpixeledge location.
Whereas their performance are good in smooth area they are
typically poor to deal with singularities presented in discrete
data and bring discontinuous edge location. In this paper we
propose an hnproved level set mnstruction(1LSR) technique to
overcome these limitations by locating curves while: 1) obtaining
continuous and smooth curve and 2) keeping edge especially
corner location precisian. This is accomplished by lLSB scheme
in which curves are smoothed along isophotes with anchor and
tapohgy constraints at corners which are guided by comer
judgement.Thismethodresults in subpixel locationwith accurate
|Corresponding Author||Mo Yi|
Yi Mo,Liu Zhongxuan,Peng Silong,et al. Subpixel edge location using improved LSR[C],2005:pp 970-975.
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