کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
744527 894390 2012 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Best ellipse and cylinder parameters estimation from laser profile scan sections
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Best ellipse and cylinder parameters estimation from laser profile scan sections
چکیده انگلیسی

Industrial applications like robot-aided welding, automated inspection, and 3D measurements require 3D points to be captured from the surfaces of objects and processed to calculate the information-of-interest. The lack of research focused on fitting ellipses to 3D laser profile data, and the intrinsic features that distinguish it from 2D digital images, motivated us to conduct a comparative study involving the most popular ellipse-fitting methods. After describing our laser profile scanning system, and a survey of ellipse-fitting methods, we compare, using extensive experiments performed with synthetic and real data, the fitting algorithms in terms of stability and accuracy with respect to a variety of factors. The estimate obtained with the best method is used to initialize a robust non-linear iterative ellipse fitting method. Finally, we describe a novel method for the construction of cylindrical surfaces from estimated elliptical sections.


► We present a comparative study involving the most popular ellipse-fitting methods.
► We use data captured by a laser profile scanner mounted on an industrial robot.
► The best method from previous study used to initialize best ellipse-fitting method.
► A novel method to construct a cylindrical surface from the elliptical sections.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 50, Issue 9, September 2012, Pages 1242–1259
نویسندگان
, , ,