Yazar "Kiraz, Alper" için listeleme
-
Az Örnekli Öğrenme ile Mikroskobik Görüntülerden Maya Hücresi Segmentasyonu
Alkan, Muhammet; Kiraz, Berna; Eren, Furkan; Uysallı, Yiğit; Kiraz, Alper (IEEE, 2021)Mikroskobik görüntülerden otomatik hücre segmentasyonu, derin sinir ağları veya görüntü işleme teknikleri kullanılarak yapılabilmektedir. Bu tekniklerin ayrı ayrı problemleri ve zorlukları bulunmakla birlikte özellikle ... -
BioNAS: Neural Architecture Search for Multiple Data Modalities in Biomedical Image Classification
Kuş, Zeki; Kiraz, Berna; Aydın, Musa; Kiraz, Alper (Springer, 2024)Neural Architecture Search (NAS) for biomedical image classification has the potential to design highly efficient and accurate networks automatically for tasks from different modalities. This paper presents BioNAS, a ... -
Çok Sınıflı Hücre Bölütleme için Derin Sinir Ağlarında Sınıf Ağırlıklı Cezalandırmanın Etkisi
Aydın, Musa; Kuş, Zeki; Kiraz, Berna; Hoşavcı, Reyhan; Kiraz, Alper (IEEE, 2024)Derin öğrenme ağları, birçok alanda başarılı sonuçlar vermekle birlikte karmaşıklıları sebebiyle aşırı uyum gibi problemlere sebep olmaktadır. Bu sorunu çözmek için birçok yaklaşım önerilmiş ve sınıf bazlı cezalandırma ... -
A Deep Learning Model for Automated Segmentation of Fluorescence Cell images
Aydın, Musa; Kiraz, Berna; Eren, Furkan; Uysallı, Yiğit; Morova, Berna; Özcan, Selahattin Can; Acılan, Ceyda; Kiraz, Alper (IOP Publishing Ltd, 2021)Deep learning techniques bring together key advantages in biomedical image segmentation. They speed up the process, increase the reproducibility, and reduce the workload in segmentation and classification. Deep learning ... -
DeepCAN: A Modular Deep Learning System for Automated Cell Counting and Viability Analysis
Eren, Furkan; Aslan, Mete; Kanarya, Dilek; Uysallı, Yigit; Aydin, Musa; Kiraz, Berna; Aydın, Ömer; Kiraz, Alper (IEEE, 2022)Precise and quick monitoring of key cytometric features such as cell count, cell size, cell morphology, and DNA content is crucial for applications in biotechnology, medical sciences, and cell culture research. Traditionally, ... -
Differential Evolution-Based Neural Architecture Search for Brain Vessel Segmentation
Kuş, Zeki; Kiraz, Berna; Göksu, Tuğçe Koçak; Aydın, Musa; Özkan, Esra; Vural, Atay; Kiraz, Alper; Can, Burhanettin (Elsevier, 2024)Brain vasculature analysis is critical in developing novel treatment targets for neurodegenerative diseases. Such an accurate analysis cannot be performed manually but requires a semi-automated or fully-automated approach. ... -
Digital Holograms Obtained Using Advanced Evolution Strategies
Aydın, Musa; Kiraz, Berna; Kiraz, Alper; Doğan, Buket (Institute of Electrical and Electronics Engineers (IEEE), 2018)By changing the amplitude and phase of optical beams digital holography allows for the generation of desired target images at the focus of a lens. It is an important research challenge to determine the digital hologram ... -
Enhancing Resolution and Contrast in Fibre Bundle-Based Fluorescence Microscopy Using Generative Adversarial Network
Ketabchi, Amir Mohammad; Morova, Berna; Uysallı, Yiğit; Aydın, Musa; Eren, Furkan; Bavili, Nima; Pysz, Dariusz; Buczynski, Ryszard; Kiraz, Alper (Wiley, 2024)Fibre bundle (FB)-based endoscopes are indispensable in biology and medical science due to their minimally invasive nature. However, resolution and contrast for fluorescence imaging are limited due to characteristic ... -
Fabrication and Characterization of Large Numerical Aperture, High-Resolution Optical Fiber Bundles Based on High-Contrast Pairs of Soft Glasses for Fluorescence Imaging
Morova, Berna; Bavili, Nima; Yaman, Onur; Yiğit, B.; Zeybel, Müjdat; Aydın, Musa; Doğan, B.; Kasztelanic, R.; Pysz, Dariusz; Buczynski, Ryszard; Kiraz, Alper (The Optical Society, 2019)Fabrication and characterization of flexible optical fiber bundles (FBs) with inhouse synthesized high-index and low-index thermally matched glasses are presented. The FBs composed of around 15000 single-core fibers with ... -
An LED-Based Structured Illumination Microscope Using A Digital Micromirror Device And GPU Accelerated Image Reconstruction
Aydın, Musa; Uysallı, Yiğit; Özgönül, Ekin; Morova, Berna; Tiryaki, Fatmanur; Karalar, Elif Nur Fırat; Doğan, Buket; Kiraz, Alper (PLOS, 2022)When combined with computational approaches, fluorescence imaging becomes one of the most powerful tools in biomedical research. It is possible to achieve resolution figures beyond the diffraction limit, and improve the ... -
An LED-Based Super Resolution GPU Implemented Structured Illumination Microscope
Aydın, Musa; Uysallı, Yiğit; Özgönül, Ekin; Morova, Berna; Kiraz, Alper (SPIEDigital Library, 2020)Fluorescence imaging of sub-cellular structures with sizes below the di raction limit is vital in understanding cellular processes. Relying on exciting the sample with di erent illumination patterns and image processing ... -
Multi-Scale Hierarchical Topology Optimization for Nanophotonic Design
Daşdemir, Ahmet Onur; Koral, Ahmet Kağan; Kiraz, Berna; Kiraz, Alper; Mağden, Emir Salih (Optics InfoBase Conference Papers, 2020)We develop a multi-scale method to rapidly design efficient and fabricationcompatible nanophotonic devices, and demonstrate it by designing a mode multiplexer with 98.1% efficiency in 104 iterations under 50 seconds using ... -
Neural Architecture Search for Biomedical Image Classification: A Comparative Study Across Data Modalities
Kuş, Zeki; Aydın, Musa; Kiraz, Berna; Kiraz, Alper (Elsevier, 2025)Deep neural networks have significantly advanced medical image classification across various modalities and tasks. However, manually designing these networks is often time-consuming and suboptimal. Neural Architecture ... -
Optosayısal Konfokal Mikroskop Tasarımı ve Kurulumu
Zengin, Berk; Kurt, Adnan; Kiraz, Berna; Kiraz, Alper (Institute of Electrical and Electronics Engineers (IEEE), 2017)Standart epifloresans mikroskopiye kıyasla sunduğu yüksek yanal ve eksenel çözünürlük nedeniyle konfokal mikroskopi yaşam bilim araştırmalarında hayati bir araç haline gelmiştir. Buna karşılık, konfokal mikroskoba erişim ... -
PBC-NAS: Periferik Kan Hücrelerinin Sınıflandırılması İçin Sinir Mimarisi Arama
Kuş, Zeki; Kiraz, Berna; Aydın, Musa; Kiraz, Alper (IEEE, 2024)Periferik kan hucresi (PBC) sınıflandırması, kanın bileşenlerini tanımlamak ve insan sağlığını etkileyen karmaşık ilişkilerini anlamak için temel bir araçtır. PBC’ler, eritrositler, lokositler ve trombositler gibi çeşitli ... -
Sinüzoidal Aydınlatma Desenleri Kullanılarak Frekans Uzayında Görüntü Yeniden Yapılandırma
Aydın, Musa; Kiraz, Alper; Uysallı, Yiğit; Özgönül, Ekin; Morova, Berna (IEEE, 2021)Yapılandırılmış Aydınlatma Desenleri (Structured Illumination Patterns) mikroskobik görüntülemede, kırımın limitinin (diffraction limit) aşılarak süper çözünürlüklü görüntünün elde edilmesini sağlamak için kullanılan ...
