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Title:

Modeling of Cracks and Joints in Digital Images of Concrete Pavements Using Optical Reflection Properties

Accession Number:

01124855

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Digital image based automated crack detection and classification technology has seen vast improvements in the recent years. However, only a little evidence is found in the extension of this technology to evaluate depths of cracks. Additional information relevant to different distresses and their severities could be revealed by optical modeling of their images and subsequent analysis of the variation in pixel intensity profiles within them. A preliminary study is carried out to model the digital image formation of cracked concrete pavements based on the Bidirectional Reflection Distribution Function (BDRF). This study is specifically focused on optical modeling of longitudinal and transverse cracks, and joints of concrete pavements using variation of reflection properties at surface discontinuities. In the first phase of the investigation surface discontinuities are considered to be homogenous and of regular geometrical shapes. Calibration of the new image formation model is performed based on experimentally collected images of real cracks formed in concrete pavements. The pixel intensity contrasts and distributions across images of cracks and joints generated from the calibrated model were validated against those of identical actual cracks. Finally a simple technique is recommended for evaluating crack depths using the calibrated model as a tool.

Monograph Accession #:

01120148

Report/Paper Numbers:

09-2703

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Amarasiri, Saumya
Gunaratne, Manjriker
Sarkar, Sudeep
Nazef, Abdenour

Pagination:

25p

Publication Date:

2009

Conference:

Transportation Research Board 88th Annual Meeting

Location: Washington DC, United States
Date: 2009-1-11 to 2009-1-15
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures; Photos; References (10) ; Tables (1)

Candidate Terms:

Imaging systems

Uncontrolled Terms:

Bidirectional flow; Optical reflectors

Subject Areas:

Highways; Pavements; I22: Design of Pavements, Railways and Guideways

Source Data:

Transportation Research Board Annual Meeting 2009 Paper #09-2703

Files:

TRIS, TRB

Created Date:

Jan 30 2009 7:04PM