A Phase Coded Disk Approach To Thick Curvilinear Line Detection

Clode, Simon, Zelniker, Emanuel, Kootsookos, Peter and Clarkson, Vaughan (2004). A Phase Coded Disk Approach To Thick Curvilinear Line Detection. In: F. Hlawatsch, G. Matz, M. Rupp and B. Wistawel, Proceedings of the Seventh European Signal Processing Conference. The Seventh European Signal Processing Conference, Vienna, Austria, (1147-1150). 6-10 September, 2004.

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Author Clode, Simon
Zelniker, Emanuel
Kootsookos, Peter
Clarkson, Vaughan
Title of paper A Phase Coded Disk Approach To Thick Curvilinear Line Detection
Conference name The Seventh European Signal Processing Conference
Conference location Vienna, Austria
Conference dates 6-10 September, 2004
Proceedings title Proceedings of the Seventh European Signal Processing Conference
Place of Publication Wien, Austria
Publisher EUSIPCO
Publication Year 2004
Sub-type Fully published paper
ISBN 3-200-00165-8
Editor F. Hlawatsch
G. Matz
M. Rupp
B. Wistawel
Volume 1
Start page 1147
End page 1150
Total pages 4
Language eng
Abstract/Summary This paper examines the well-known problem of line detection, but where the lines are wider than one pixel. The motivation behind the paper is the extraction of road information from high resolution photogrammetry and Light Detection and Ranging (LIDAR) data. Wide lines cause varying problems during detection. The Hough or Radon transform approaches do not find the road centrelines accurately; diagonals of the thick lines are found instead whilst other methods also tend to be error prone. Our approach convolves a raw, pixelated, binary road classification with a complex-valued disk. The technique provides three separate pieces of information about the road or thick line: the centreline, the direction and the width of the road at any point along the centreline. The road centreline can be detected from the position of the peak of the magnitude image resulting from the complex convolution. Road width can also be estimated from the magnitude peak whilst the direction of the road may be obtained from the phase image.
Subjects 280203 Image Processing
280204 Signal Processing
Keyword line detection
Light Detection and Ranging data
LIDAR data
information extraction
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

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Created: Tue, 01 Mar 2005, 10:00:00 EST by Emanuel Emil Zelniker on behalf of School of Information Technol and Elec Engineering