Application of close photogrammetry for explosion affected area analysis / Zakiah Abdullah

Close Range Photogrammetry (CRP) is a process of making measurement from photographs.
In generally, CRP is generating from 2D image into 3D image. The aim of this study is to
generate 3D modelling o f area affected by explosion. In order to achieve the stated aim and
objectives, the study designated to use the current data to be collected on the field. So, the data
to generate 3D modelling of area affected by explosion come from capturing picture by camera
or other devices. Capturing the incident on the field as the result which is 3D model of that area
looks like a real world. The entire places the data to be collected is at Arau, Perlis which is
explosion site simulation. The designated of this study is to generate 3D model of area affected
by explosion as the output. Agisoft PhotoScan Professional software is needed to process the
data that have been collected. In this process phase, camera calibration is needed to acquire the
exterior orientation with sufficient redundancies in every photo at least six ground control
points should appear although this number depends of each photograph (Aguilar et al., 2007).
The 3D model be able identify the measurement before and after explosion. In order to
identified the changes between two condition, the result will compared the radius area affected
before and after by using three software. In this simulation uses a chemical compound which
is calcium carbide with chemical formula CaC2. Then, to identify the chemical reaction of
calcium carbide the result of chemical reaction between two types of surface with different
quantity of calcium carbide by interpreting the depth of area affected.