Book's Detail
Image Feature Extraction Method to Analyze Soft-Mode Turbulence Fluctuation in Nematic Liquid Crystal

A convective pattern called soft-mode turbulence (SMT) on MBBA (4'-Methoxy-benzylidene-4-butyl-aniline) nematic liquid crystal with a homeotropic alignment will appear when an external electric field with a certain frequency applied on the sample at a threshold voltage (VSMT). The threshold voltage will increase with increasing of frequency. SMT Fluctuation occur when VSMT continues to increase at the same frequency. This phenomenon can be analize by applying an image processing tecnique. Based on image feature extraction method, inhomogeneous of SMT patterns can be observed through contrast, correlation, energy, homogeneity, and entropy parameter. Those parameters represent a result in accordance with the image visualization. Significant changes in the value of contrast, energy, homogeneity, and entropy parameters occur at V> VSMT which fluctuation begin. In this experiment the fluctuation begin at V = 27.3 volts.

Pernyataan Tanggungjawab Risti Suryantari, Yusril Yusuf, Flaviana
Pengarang Suryantari, Risti - Pengarang Utama
Flaviana - Pengarang Tambahan
Yusuf, Yusril - Pengarang Tambahan
Edisi
No. Panggil
ISBN/ISSN
Subyek
Klasifikasi
Judul Seri
GMD Computer File
Bahasa English
Penerbit Chulalongkorn University, Thailand
Tahun Terbit 2019
Tempat Terbit Bangkok, Thailand
Deskripsi Fisik p. 1 - 6
Info Detil Spesifik 2019 9th International Conference on Applied Physics and Mathematics (ICAPM 2019). Chulalongkorn University, Thailand. Bangkok, Thailand, 21-23 January 2019.
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