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Parabola detection using Hough Transform

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Parabola detection using Hough Transform

by Clara Isabel Sánchez

 

06 Aug 2007 (Updated 08 Aug 2007)

Find parabolas with specific vertex in a binary image via Hough Transform.

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Description

Function uses Standard Hough Transform to detect parabola in a binary image. According to the Hough Transform, each pixel in image space corresponds to a parabola in Hough space and vise versa. This function uses the representation of parabola : [(y-centroy)*cos(phi)-(x-centrox)*sin(phi)]^2=...
  ...=4*p*[(y-centroy)*sin(phi)+(x-centrox)*cos(phi)] to detect parabola in binary image. Upper left corner of image is the origin of coordinate system.

Acknowledgements

The author wishes to acknowledge the following in the creation of this submission:
Line Detection via Standard Hough Transform, Circle Detection via Standard Hough Transform

MATLAB release MATLAB 7 (R14)
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Comments and Ratings (5)
26 Oct 2007 vicky salamena

i'm very interest to matlab simulink

26 Oct 2007 vicky salamena

i,m very interest for simulink on matlab

03 Nov 2007 ahmed elshabasy

show the draw

30 Nov 2009 jhon chandra

can any one hlpe for full code...

02 May 2011 maram

how to use the output values on the image?

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Updates
08 Aug 2007

Change description...type error

Tag Activity for this File
Tag Applied By Date/Time
image analysis Clara Isabel Sánchez 22 Oct 2008 09:22:13
hough transform parabola detection image Clara Isabel Sánchez 22 Oct 2008 09:22:13
hough transform parabola detection image Ajinkya Dharap 31 Mar 2009 01:57:21
image analysis Hosam 30 Apr 2009 17:26:07
image analysis jhon chandra 25 Nov 2009 13:57:37
image analysis Benjamin BB 06 May 2010 02:57:58
hough transform parabola detection image Moussa Bâ 31 May 2010 04:54:26
hough transform parabola detection image SRM University 08 Jul 2010 01:03:26
hough transform parabola detection image Dawid 26 Jan 2011 16:03:53
hough transform parabola detection image nadav 07 Jun 2011 08:30:26

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