Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
529484 | Image and Vision Computing | 2008 | 10 Pages |
Abstract
The paper presents a new method introducing an anchored discrete convolution for calculating the length of a digital curve. The method is based on discrete convolution by using convolution masks and point anchoring in the pixel. The use of ordinary convolution distorts the curve shape and gives large errors in length calculation. The advantage of anchoring is that it limits the point shifting into the pixel during the calculation of the curve length. The method is applied to an analytical arc and various calculations are performed. In addition different methods from the literature were compared and a real sample was tested.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Vision and Pattern Recognition
Authors
Alojz Suhadolnik, Jože Petrišič, Franc Kosel,