Browsing Faculty of Engineering by Author "Erdem, Tanju"
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3B kamera takibi için eylemsizlik algılayıcılarının birleştirilmesi
Özer, N.; Erdem, Tanju; Ercan, Ali Özer; Eroğlu Erdem, Ç. (IEEE, 2012)It is well known in a Bayesian filtering framework, the use of inertial sensors such as accelerometers and gyroscopes improves 3D tracking performance compared to using camera measurements only. The performance improvement ... -
Analysis of ALTO protocol over P2P networks
Kökten, Koray (2012-10)Currently, for distributed applications such as Peer-to-Peer (P2P) and Content Delivery Networks (CDNs), the most important challenge is to determine the optimal peer or node selection process, since it sometimes causes ... -
Authoring and presentation tools for distance learning over interactive TV
Gürel, T. C.; Erdem, Tanju; Kermen, A.; Özkan, M. K.; Eroğlu Erdem, Ç. (ACM, 2010)We present a complete system for distance learning over interactive TV with novel tools for authoring and presentation of lectures and exams, and evaluation of student and system performance. The main technological ... -
Automatic fall detection for elderly by using features extracted from skeletal data
Davari, Amir; Aydin, T; Erdem, Tanju (IEEE, 2013)Automatic detection of unusual events such as falls is very important especially for elderly people living alone. Realtime detection of these events can reduce the health risks associated with a fall. In this paper, we ... -
Bispectrum estimation using a MISO autoregressive model
Erdem, Tanju; Ercan, Ali Özer (Springer International Publishing, 2016)Bispectra are third-order statistics that have been used extensively in analyzing nonlinear and non-Gaussian data. Bispectrum of a process can be computed as the Fourier transform of its bicumulant sequence. It is in general ... -
Combining haar feature and skin color based classifiers for face detection
Eroğlu Erdem, Ç.; Ulukaya, S.; Karaali, A.; Erdem, Tanju (IEEE, 2011)This paper presents a hybrid method for face detection in color images. The well known Haar feature-based face detector developed by Viola and Jones (VJ), that has been designed for gray-scale images is combined with a ... -
Curriculum learning for face recognition
Büyüktaş, Barış; Erdem, Ç. E.; Erdem, Tanju (IEEE, 2021)We present a novel curriculum learning (CL) algorithm for face recognition using convolutional neural networks. Curriculum learning is inspired by the fact that humans learn better, when the presented information is organized ... -
Effect of camera-IMU displacement calibration error on tracking performance
Maxudov, Nekruzjon; Ercan, Ali Özer; Erdem, Tanju (IEEE, 2015)Due to their complementary properties, inertial measurement units (IMU) and cameras are used in ego-motion tracking applications. For this, the relative rotation and displacement between the camera and IMU reference frames ... -
Experimental QOS-based comparison of olsr and B.A.T.M.A.N. mesh routing algorithms for multimedia home networks
Ulusoy, Sırrı Erdem (2013-08)Wireless Mesh Networks (WMNs) allow communication of two nodes via a multi-hop route, without the need for an infrastructure such as base stations. Routing has been a fundamental issue for this type of communication networks. ... -
Fall detection for elderly people using depth video data obtained by kinect
Davari, Amir Abbas (2013-08)Automatic detection of unusual events such as falls is very important especially for elderly people living alone. Real-time detection of these events can reduce the health risks associated with a fall. There has been a ... -
Formant position based weighted spectral features for emotion recognition
Bozkurt, E.; Erzin, E.; Eroğlu Erdem, Ç.; Erdem, Tanju (Elsevier, 2011)In this paper, we propose novel spectrally weighted mel-frequency cepstral coefficient (WMFCC) features for emotion recognition from speech. The idea is based on the fact that formant locations carry emotion-related ... -
Fusing inertial sensor data in an extended kalman filter for 3D camera tracking
Erdem, Tanju; Ercan, Ali Özer (IEEE, 2015-02)In a setup where camera measurements are used to estimate 3D egomotion in an extended Kalman filter (EKF) framework, it is well-known that inertial sensors (i.e., accelerometers and gyroscopes) are especially useful when ... -
Hareketli kameralarda örtücü tespiti
Aydın, T.; Erdem, Tanju (IEEE, 2012)In this work, we propose a novel method for detection of moving or static objects which are not part of the background in an image sequence captured by a moving camera. The method is composed of two stages, namely, ... -
Hareketten yapı çıkarımı için görsel kullanıcı arayüzü
Hüroğlu, Cengiz; Erdem, Tanju (IEEE, 2014)The usage of computer vision applications such as 3D reconstruction, motion tracking and augmented reality gradually increases. The first and the most important stage of these kind of applications is estimating the 3D scene ... -
High-performance low-complexity near-lossless embedded memory compression for HDTV
Palaz, Okan (2014-08)HDTV video işlemcileri çerçeve hızı değiştirme, binişme giderme ve diğer video iyileştirme işlemlerini yapabilmek için, bir ya da daha fazla geçmiş çerçeveyi hafızada tutmak durumundadır. HD çözünürlüklerde sıkıştırılmamış ... -
A hybrid statistical/unit-selection text-to-speech synthesis system for morphologically rich languages
Güner, Ekrem (2013-06)Two most prominent examples of Text-to-Speech (TTS) systems are Unit Selection based TTS (UTTS) and the Hidden Markov Model (HMM) based TTS (HTTS). UTTS has been the dominant approach of the last decade while HTTS has been ... -
Improving automatic emotion recognition from speech signals
Bozkurt, E.; Erzin, E.; Eroğlu Erdem, Ç.; Erdem, Tanju (International Speech Communications Association, 2009)We present a speech signal driven emotion recognition system. Our system is trained and tested with the INTERSPEECH 2009 Emotion Challenge corpus, which includes spontaneous and emotionally rich recordings. The challenge ... -
INTERSPEECH 2009 duygu tanıma yarışması değerlendirmesi
Bozkurt, E.; Erzin, E.; Eroğlu Erdem, Ç.; Erdem, Tanju (IEEE, 2010)Bu makalede INTERSPEECH 2009 Duygu Tanıma Yarışması sonuçlarını değerlendiriyoruz. Yarışmanın sunduğu problem doğal ve duygu bakımından zengin FAU Aibo konuşma kayıtlarının beş ve iki duygu sınıfına en doğru şekilde ... -
Kamera ve ataletsel ölçüm birimi iç kalibrasyonu
Erdem, Tanju; Ercan, Ali Özer; Aydın, T. (IEEE, 2013)In this paper, we address the problem of internal calibration of a camera and an inertial measurement unit (IMU). The internal calibration of a camera and an IMU requires the determination of the relative orientation and ... -
More learning with less labeling for face recognition
Büyüktaş, Barış; Eroğlu Erdem, Ç.; Erdem, Tanju (Elsevier, 2023-05)In this paper, we propose an improved face recognition framework where the training is started with a small set of human annotated face images and then new images are incorporated into the training set with minimum human ...
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