Browsing by Author "Benligiray, Burak"
Now showing items 1-20 of 25
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Blind Rectification of Radial Distortion by Line Straightness
Benligiray, Burak; Topal, Cihan (IEEE, 2016)Lens distortion self-calibration estimates the distortion model using arbitrary images captured by a camera. The estimated model is then used to rectify images taken with the same camera. These methods generally use the ... -
Coin Recognition based on Geometric Features
Benligiray, Burak; Çakır, Halil İbrahim; Topal, Cihan; Akınlar, Cüneyt (IEEE, 2015)In this study, it is aimed to count the total amount in an image of coins using machine vision methods. The extrinsic parameters of the camera whose intrinsic parameters are already known are estimated relative to the plane ... -
Coin recognition based on geometric features [Geometrik Öznitelik Tabanli Madeni Para Tanima]
Benligiray, Burak; Çakır, Halil İbrahim; Topal, Cihan; Akınlar, Cüneyt (Institute of Electrical and Electronics Engineers Inc., 2015)In this study, it is aimed to count the total amount in an image of coins using machine vision methods. The extrinsic parameters of the camera whose intrinsic parameters are already known are estimated relative to the plane ... -
Combining Feature-based and Model-based Approaches For Robust Ellipse Detection
Çakır, Halil İbrahim; Benligiray, Burak; Topal, Cihan (IEEE, 2016)Fast and robust ellipse detection is a vital step in many image processing and computer vision applications. Two main approaches exist for ellipse detection, i.e., model-based and feature-based. Model-based methods require ... -
A Comparison of Classification Methods for Local Binary Patterns
Kazak, Nihan; Koç, Mehmet; Benligiray, Burak; Topal, Cihan (IEEE, 2016)Texture recognition is an important tool used for content-based image retrieval, face recognition, and satellite image classification applications. One of the most successful features for texture recognition is local binary ... -
A comparison of classification methods for local binary patterns [Yerel Ikili Örüntüler Için Siniflandirma Yöntemlerinin Karşilaştirilmasi]
Kazak, N.; Koç, Mehmet; Benligiray, Burak; Topal, Cihan (Institute of Electrical and Electronics Engineers Inc., 2016)Texture recognition is an important tool used for content-based image retrieval, face recognition, and satellite image classification applications. One of the most successful features for texture recognition is local binary ... -
Correcting writing errors in turkish with a character-level neural language model [Dahi anlamindaki de ayri yazilir: Türkçe yazim hatalarinin karakter-seviyeli bir sinirsel dil modeli ile düzeltilmesi]
Benligiray, Burak (Institute of Electrical and Electronics Engineers Inc., 2018)A large part of the written content on the Internet is composed of social media posts, articles written for content platforms and user comments. In contrast to the content prepared for print media, these types of texts ... -
Counting Turkish Coins with a Calibrated Camera
Benligiray, Burak; Çakır, Halil İbrahim; Topal, Cihan; Akınlar, Cüneyt (Springer International Publishing Ag, 2015)We present a computer vision application that detects all coins in a test image, classifies each detected coin and computes the total amount. Coins to be counted are assumed to be lying on a flat surface. The application ... -
Dataset augmentation for accurate object detection [Yüksek dogrulukta nesne tespiti için veri kümesi artirma]
Uysal, M. C.; Karapinar, T.; Benligiray, Burak; Topal, Cihan (Institute of Electrical and Electronics Engineers Inc., 2018)Hand detection has many important applications in human-computer interaction. But hand detection is a difficult problem because hand image can vary greatly in images. Vision based hand interfaces require fast and extremely ... -
Facial expression recognition with FHOG features [FHOG öznitelikleri ile yüz ifadesi tanima]
Gacav, Caner; Benligiray, Burak; Özkan, K.; Topal, Cihan (Institute of Electrical and Electronics Engineers Inc., 2018)Facial expression recognition is a popular computer vision subject that has many applications such as humancomputer interaction and behavior analysis. As for many computer vision problems, lighting and contrast differences ... -
Greedy Search for Descriptive Spatial Face Features
Gacav, Caner; Benligiray, Burak; Topal, Cihan (IEEE, 2017)Facial expression recognition methods use a combination of geometric and appearance-based features. Spatial features are derived from displacements of facial landmarks, and carry geometric information. These features are ... -
HEp-2 Cell Classification using a Deep Neural Network Trained for Natural Image Classification
Benligiray, Burak; Akakin, Hatice Çınar (IEEE, 2016)Deep convolutional neural networks is a recently developed method that yields very successful results in image classification. Deep neural networks, which have a high number of parameters, require a large amount of data ... -
HEp-2 cell classification using a deep neural network trained for natural image classification [Dogal Imge Siniflandirmak için Egitilmis bir Derin Sinir Agi ile HEp-2 Hücresi Siniflandirilmasi]
Benligiray, Burak; Akakin, H. C. (Institute of Electrical and Electronics Engineers Inc., 2016)Deep convolutional neural networks is a recently developed method that yields very successful results in image classification. Deep neural networks, which have a high number of parameters, require a large amount of data ... -
Lens Distortion Rectification Using Triangulation Based Interpolation
Benligiray, Burak; Topal, Cihan (Springer Int Publishing Ag, 2015)Nonlinear lens distortion rectification is a common first step in image processing applications where the assumption of a linear camera model is essential. For rectifying the lens distortion, forward distortion model needs ... -
A line detection based fiducial marker detection algorithm
Benligiray, Burak (Anadolu Üniversitesi, 2014)Referans işaretçiler, bilgisayarların gerçek dünya algılarıyla gerçek dünya arasında ilişkiler kurabilmeleri için suni olarak üretilip sahneye yerleştirilen objelerdir. Bilgisayarlı görü uygulamaları, işaretçinin modeli ... -
On the efficiency issues of virtual keyboard design
Topal, Cihan; Benligiray, Burak; Akınlar, Cüneyt (2012)Virtual keyboards are useful tools, which ease effortless entry of textual data and enable typing with alternative input hardware such as a single switch. Early virtual keyboards are designed similar to physical keyboards ... -
Quantification of Projective Distortion for Fiducial Markers
Benligiray, Burak; Topal, Cihan; Akınlar, Cüneyt; Genç, Yakup (IEEE, 2013)The aim of this study is to quantify the projective distortion of candidate quadrilaterals found in a square-framed fiducial marker detection algorithm. Based on the quantified value, candidates can be eliminated in such ... -
Quantification of projective distortion for fiducial markers [Duzlemsel dsaretciler dcin dzdusumsel carpikligin nicelendirilmesi]
The aim of this study is to quantify the projective distortion of candidate quadrilaterals found in a square-framed fiducial marker detection algorithm. Based on the quantified value, candidates can be eliminated in such ... -
Realtime circular object detection based on the statistical compactness estimation [İstati·sti·ksel tikizlik kesti·ri·mi·ne dayali gerçek zamanli dai·resel nesne tespi·ti·]
Benligiray, Burak; Topal, Cihan; Akınlar, Cüneyt (2012)Gathering statistical and geometrical information by processing the shape contours is the common way of feature extraction on object detection and recognition studies. Compactness is an important shape descriptor which ... -
A Robust Css Corner Detector Based on the Turning Angle Curvature of Image Gradients
Topal, Cihan; Özkan, Kemal; Benligiray, Burak; Akınlar, Cüneyt (IEEE, 2013)In this study, we present a new contour-based corner detection method based on the turning angle curvature computed from the contour gradients of the image. In general, curvature is computed with the pixel locations of the ...
