Digital Image Analysis Of Cracks In Concrete
The image analysis technique for the automatic detection and quantification of cracks in concrete is described. The presence of cracks can significantly influence the mechanical and mass transport properties of concrete. Over the past 20 years, several techniques have been developed to detect...
| Main Author: | |
|---|---|
| Format: | Monograph |
| Language: | English |
| Published: |
Universiti Sains Malaysia
2005
|
| Subjects: | |
| Online Access: | http://eprints.usm.my/57155/ http://eprints.usm.my/57155/1/Digital%20Image%20Analysis%20Of%20Cracks%20In%20Concrete_Hasliza%20Abdul%20Rahman.pdf |
| Summary: | The image analysis technique for the automatic detection and quantification of cracks
in concrete is described. The presence of cracks can significantly influence the
mechanical and mass transport properties of concrete. Over the past 20 years, several
techniques have been developed to detect and measure micro-cracks in concrete. This
image analysis technique allows the assessment of the characteristics of the crack
network in concrete. The technique of the image analysis is essentially a three-step
process that includes the preparation of the samples, segmentation of the cracks, and
the treatment of the collected data. The first procedure carried out in this study was
the preparation of the concrete samples of the three different characteristics strength.
The compressive strength of the samples was taken on 7 and 28 days. Image of cracks
on the concrete samples were taken using digital camera and were analyzed using
IDRISI sofware. The segmentation includes a treatment of the color image,
thresholding on the gray level histogram and treatment of the binary images. The
resulting images are then treated and finally the characteristic of the cracking pattern
are determined. |
|---|