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Assen Shulev, Ilia Roussev, Simeon Karpuzov, Georgi Stoilov, Detelina Ignatova, Constantin von See and Gergo Mitov

Abstract

This paper presents a roughness measurement of zirconia ceramics, widely used for dental applications. Surface roughness variations caused by the most commonly used dental instruments for intraoral grinding and polishing are estimated. The applied technique is simple and utilizes the speckle properties of the scattered laser light. It could be easily implemented even in dental clinic environment. The main criteria for roughness estimation is the average speckle size, which varies with the roughness of zirconia. The algorithm used for the speckle size estimation is based on the normalized autocorrelation approach.

Open access

Assen Shulev, Tihomir Tiankov, Detelina Ignatova, Kostadin Kostadinov, Ilia Roussev, Dimitar Trifonov and Valentin Penchev

Abstract

This paper presents a complex optomechatronic system for In-Vitro Fertilization (IVF), offering almost complete automation of the Intra Cytoplasmic Sperm Injection (ICSI) procedure. The compound parts and sub-systems, as well as some of the computer vision algorithms, are described below. System capabilities for ICSI have been demonstrated on infertile oocyte cells.