Analisis Citra Digital Untuk Sampel Batuan Menggunakan Micro-Ct Scanner Skyscan 1173

Abstract

AbstrakAnalisis citra digital telah dilakukan pada sampel batuan hasil pemindaian menggunakan Micro-CT Scanner Bruker Skyscan 1173. Analisis dilakukan secara kualitatif dan kuantitatif untuk mengetahui karakteristik dari citra sampel batuan. Sampel digital batuan yang dihasilkan dari proses pemindaian tersebut berukuran 380×380×380 piksel. Analisis kualitatif dilakukan dengan menggunakan perangkat lunak CTAn (2D) dan CTVox (3D). Analisis kuantitatif dilakukan dengan perhitungan ukuran pori, porositas terbuka, porositas tertutup, porositas total serta dimensi fraktal menggunakan perangkat lunak CTAn. Analisis konsensus penggunaan sumbu kartesian dari data digital dalam perangkat lunak yang digunakan (CTAn, CTVox, DataViewer, ImageJ dan Matlab) dilakukan dengan menelaah citra 2D irisan trans-axial (bidang XY), sagittal (bidang ZY), dan coronal (bidang XZ). Hasil parameter-parameter batuan yang dianalisis pada sampel batuan menunjukan bahwa batuan termasuk ke dalam golongan fanerik/fanerokristalin halus, memiliki porositas yang tergolong istimewa, pori-pori pada batuan terkoneksi dengan baik, serta aliran fluida pada batuan cukup kompleks.. Hasil perbandingan posisi sampel batuan yang diperoleh dari berbagai perangkat lunak menunjukkan kesamaan citra irisan pada perangkat lunak CTAn, CTVox, dan DataViewer, namun berbeda dengan hasil citra irisan pada ImageJ dan Matlab sehingga perlu perubahan sumbu kordinat jika dalam pemrosesan lanjut menggunakan kedua perangkat tersebut.Kata-kata kunci: analisis citra digital, porositas, dimensi fraktal, medium berpori. AbstractDigital image analysis has been done on rock samples of scanning results using Bruker Skyscan 1173 Micro-CT Scanner. The analysis is done qualitatively and quantitatively to know the characteristics of the sample image of the rock. The digital samples of rock produced from the scanning process are 380 × 380 × 380 pixels in size. Qualitative analysis is done by using CTAn (2D) and CTVox (3D) software. Quantitative analysis is done by calculating pore size, open porosity, closed porosity, total porosity and fractal dimension using CTAn software. The consensus analysis of the use of Cartesian axes of digital data in the software used (CTAn, CTVox, DataViewer, ImageJ and Matlab) is done by examining 2D trans-axial imagery (XY), sagittal (field ZY), and coronal (XZ). The results of the rock parameters analyzed in the rock samples indicate that the rocks belong to the type of faneric/fine fanerokristalin, have a porosity that is special, the pores in the rock are well connected, and the fluid flow in the rock is quite complex. Rock samples obtained from various software show similarities of image on CTAn, CTVox, and DataViewer software, but unlike the image of ImageJ and Matlab so it is necessary to change the coordinate axis if in advanced processing using both devices.

The comparative Micro-CT analysis on trabecular bone density between hydroxyapatite gypsum puger scaffold application and bovine hydroxyapatite scaffold application

“…In this study, bone substitution material from HAGP and BHA scaffold was used as a comparison. The morphology of both HAGP and BHA scaffold sizes along with alveolar bone density was analysed using Micro-CT. 13 The Micro-CT analysis results showed that the morphology of HAGP scaffold size was unequal with that of the BHA scaffold size. The HAGP scaffold was approximately 500 µm, while the BHA scaffold was approximately 250 µm.…”