Prof. Ahmet Enis Çetin Profile

Prof. Ahmet Enis Çetin

at Bilkent Univ

SPIE Involvement:

Author

Publications (35)

SPIE Journal Paper | 27 September 2018

Gender classification based on isolated facial features and foggy faces using jointly trained deep convolutional neural network

Aasma Aslam, Babar Hussain, Ahmet Enis Cetin, Arif Iqbal Umar, Rashid Ansari

JEI, Vol. 27, Issue 05, 053023, (September 2018) https://doi.org/10.1117/12.10.1117/1.JEI.27.5.053023

KEYWORDS: Feature extraction, Databases, Convolutional neural networks, Image classification, Facial recognition systems, Biometrics, Nose, Mouth, Image enhancement, Sensors

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Proceedings Article | 5 May 2017 Presentation + Paper

Multiplication free neural network for cancer stem cell detection in H-and-E stained liver images

Diaa Badawi, Ece Akhan, Ma'en Mallah, Ayşegül Üner, Rengül Çetin-Atalay, A. Enis Çetin

Proceedings Volume 10211, 102110C (2017) https://doi.org/10.1117/12.2262338

KEYWORDS: Cancer, Stem cells, Liver, Neural networks, Liver cancer, Artificial neural networks, Pathology, Neurons, Tissues, Machine vision, Computer vision technology

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Proceedings Article | 1 March 2017 Paper

Automated cancer stem cell recognition in H and E stained tissue using convolutional neural networks and color deconvolution

Wolfgang Aichinger, Sebastian Krappe, A. Enis Cetin, Rengul Cetin-Atalay, Aysegül Üner, Michaela Benz, Thomas Wittenberg, Marc Stamminger, Christian Münzenmayer

Proceedings Volume 10140, 101400N (2017) https://doi.org/10.1117/12.2254036

KEYWORDS: Convolutional neural networks, Cancer, Neural networks, Stem cells, Tissues, Statistical analysis, Medicine, Oncology, Databases, Machine learning, Pattern recognition, Pathology, RGB color model, Image segmentation, Image classification, Liver

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SPIE Journal Paper | 4 August 2016

Image quality assessment using two-dimensional complex mel-cepstrum

Serdar Cakir, A. Enis Cetin

JEI, Vol. 25, Issue 06, 061604, (August 2016) https://doi.org/10.1117/12.10.1117/1.JEI.25.6.061604

KEYWORDS: Image quality, Feature extraction, Fourier transforms, Databases, Distortion, Quality measurement, Visualization, Image compression, Iterated function systems, JPEG2000

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Proceedings Article | 23 March 2016 Paper

Mixture of learners for cancer stem cell detection using CD13 and H and E stained images

Oğuzhan Oğuz, Cem Emre Akbaş, Maen Mallah, Kasım Taşdemir, Ece Akhan Güzelcan, Christian Muenzenmayer, Thomas Wittenberg, Ayşegül Üner, A. Cetin, Rengül Çetin Atalay

Proceedings Volume 9791, 97910Y (2016) https://doi.org/10.1117/12.2216113

KEYWORDS: Cancer, Stem cells, Neural networks, Image classification, Tissues, Feature extraction, RGB color model, Algorithm development, Liver, Liver cancer, Detection and tracking algorithms, Image fusion

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Proceedings Article | 23 March 2016 Paper

Classification of human carcinoma cells using multispectral imagery

Umut Çinar, Yasemin Y. Çetin, Rengul Çetin-Atalay, Enis Çetin

Proceedings Volume 9791, 97911C (2016) https://doi.org/10.1117/12.2217022

KEYWORDS: Cancer, Microscopy, Multispectral imaging, Image classification, Medical diagnostics, Hyperspectral imaging, Imaging systems, Classification systems, Image processing, Computer aided diagnosis and therapy, RGB color model, Image segmentation, Feature extraction, Breast, Tumor growth modeling, Mammary gland

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Proceedings Article | 13 October 2015 Paper

A probabilistic blur detection approach for the autofocus of infrared images

Serdar Cakir, A. Enis Cetin

Proceedings Volume 9648, 96480A (2015) https://doi.org/10.1117/12.2197253

KEYWORDS: Edge detection, Infrared cameras, Cameras, Infrared imaging, Infrared radiation, Infrared detectors, Image quality, Quality measurement, Reliability, Environmental sensing

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Proceedings Article | 21 May 2015 Paper

Range resolution improvement in passive bistatic radars using nested FM channels and least squares approach

Musa Arslan, Mohammad Tofighi, Rasim Sevimli, Ahmet Çetin

Proceedings Volume 9474, 947414 (2015) https://doi.org/10.1117/12.2176067

KEYWORDS: Frequency modulation, Fermium, Deconvolution, Radar, Detection and tracking algorithms, Target detection, Doppler effect, Receivers, Signal attenuation, Transmitters

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Proceedings Article | 19 May 2015 Paper

Cross-term free based bistatic radar system using sparse least squares

R. Akin Sevimli, A. Enis Cetin

Proceedings Volume 9484, 948404 (2015) https://doi.org/10.1117/12.2176764

KEYWORDS: Target detection, Fermium, Frequency modulation, Atrial fibrillation, Doppler effect, Radar, Signal to noise ratio, Surveillance, Detection and tracking algorithms, Signal processing

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SPIE Journal Paper | 22 February 2013

Salient point region covariance descriptor for target tracking

Serdar Cakir, Tayfun Aytaç, Alper Yildirim, Soosan Beheshti, Oemer Gerek, Ahmet Cetin

OE, Vol. 52, Issue 2, 027207, (February 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.2.027207

KEYWORDS: Optical tracking, Feature extraction, Target detection, Phase modulation, Video, Video surveillance, Visualization, Surveillance, Optical engineering, Detection and tracking algorithms

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SPIE Journal Paper | 1 July 2011

Online adaptive decision fusion framework based on projections onto convex sets with application to wildfire detection in video

Osman Gunay, Ahmet Cetin, Behcet Töreyin

OE, Vol. 50, Issue 07, 077202, (July 2011) https://doi.org/10.1117/12.10.1117/1.3595426

KEYWORDS: Video, Cameras, Detection and tracking algorithms, Flame detectors, Algorithm development, Optical engineering, Video surveillance, Clouds, Machine vision, Computer vision technology

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Proceedings Article | 4 June 2011 Paper

Fractional wavelet transform using an unbalanced lifting structure

Y. Habiboğlu, Kivanc Kose, A. Çetin

Proceedings Volume 8058, 805805 (2011) https://doi.org/10.1117/12.882408

KEYWORDS: Electronic filtering, Wavelet transforms, Wavelets, Filtering (signal processing), Statistical analysis, Linear filtering, Image filtering, Image compression, Fast wavelet transforms, Electronics engineering

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Proceedings Article | 3 June 2011 Paper

Cepstrum based feature extraction method for fungus detection

Onur Yorulmaz, Tom Pearson, A. Enis Çetin

Proceedings Volume 8027, 80270E (2011) https://doi.org/10.1117/12.882406

KEYWORDS: Fourier transforms, Image transmission, Feature extraction, Image processing, Transmittance, Reflectivity, Image classification, Matrices, Image analysis, Fungi

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SPIE Journal Paper | 1 May 2011

Content-adaptive color transform for image compression

Alexander Suhre, Kivanc Kose, Ahmet Cetin, Metin Gurcan

OE, Vol. 50, Issue 05, 057003, (May 2011) https://doi.org/10.1117/12.10.1117/1.3574071

KEYWORDS: Image compression, RGB color model, Condition numbers, Image processing, Chromium, Image quality, Matrices, Optical engineering, Computer programming, Signal to noise ratio

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SPIE Journal Paper | 1 September 2010

Mel-cepstral feature extraction methods for image representation

Serdar Cakir, A. Enis Cetin

OE, Vol. 49, Issue 09, 097004, (September 2010) https://doi.org/10.1117/12.10.1117/1.3488050

KEYWORDS: Databases, Feature extraction, Facial recognition systems, Principal component analysis, Matrices, Optical engineering, Fourier transforms, Autoregressive models, Detection and tracking algorithms, Image filtering

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Proceedings Article | 19 April 2010 Paper

Target detection in SAR images using codifference and directional filters

Kaan Duman, A. Enis Çetin

Proceedings Volume 7699, 76990S (2010) https://doi.org/10.1117/12.850206

KEYWORDS: Target detection, Synthetic aperture radar, Image filtering, Matrices, Databases, Detection and tracking algorithms, Feature extraction, Automatic target recognition, Image classification, Target recognition

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Proceedings Article | 4 May 2009 Paper

Shadow detection using 2D cepstrum

B. Ugur Toreyin, A. Enis Cetin

Proceedings Volume 7338, 733809 (2009) https://doi.org/10.1117/12.819053

KEYWORDS: Video, Video surveillance, Cameras, Clouds, Detection and tracking algorithms, Flame detectors, Computing systems, Machine vision, Computer vision technology, Fourier transforms

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Proceedings Article | 29 April 2009 Paper

Target detection and classification in SAR images using region covariance and co-difference

Kaan Duman, Abdulkadir Eryildirim, A. Enis Cetin

Proceedings Volume 7337, 73370P (2009) https://doi.org/10.1117/12.818725

KEYWORDS: Target detection, Synthetic aperture radar, Image classification, Principal component analysis, Matrices, Databases, Automatic target recognition, Target recognition, Image processing, Feature extraction

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SPIE Journal Paper | 1 April 2008

Edge projections for eye localization

Mehmet Turkan, Montse Pardas, A. Enis Cetin

OE, Vol. 47, Issue 04, 047007, (April 2008) https://doi.org/10.1117/12.10.1117/1.2902437

KEYWORDS: Eye, Facial recognition systems, Databases, Detection and tracking algorithms, Sclera, Skin, Optical engineering, Wavelets, Nose, Mouth

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SPIE Journal Paper | 1 June 2007

Fire detection in infrared video using wavelet analysis

B. Ugur Töreyin, R. Gokberk Cinbis, Yigithan Dedeoglu, A. Enis Cetin

OE, Vol. 46, Issue 06, 067204, (June 2007) https://doi.org/10.1117/12.10.1117/1.2748752

KEYWORDS: Video, Flame detectors, Wavelets, Infrared imaging, Infrared detectors, Infrared radiation, Cameras, Video surveillance, Infrared cameras, Thermography

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Proceedings Article | 12 May 2006 Paper

Human face detection in video using edge projections

Mehmet Türkan, Berkan Dülek, Ibrahim Onaran, A. Çetin

Proceedings Volume 6246, 624607 (2006) https://doi.org/10.1117/12.666704

KEYWORDS: Facial recognition systems, Computer programming, Wavelets, Linear filtering, Skin, Video, Detection and tracking algorithms, Prototyping, Distance measurement, Image filtering

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Proceedings Article | 17 April 2006 Paper

Nonrectangular wavelets for multiresolution mesh analysis and compression

Kıvanc Köse, A. Enis Çetin, Uğur Güdükbay, Levent Onural

Proceedings Volume 6247, 624704 (2006) https://doi.org/10.1117/12.666702

KEYWORDS: Wavelets, Signal processing, 3D image processing, Distortion, Computer programming, Data modeling, Wavelet transforms, Reconstruction algorithms, 3D acquisition, Linear filtering

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Proceedings Article | 25 August 2004 Paper

Mean-shift tracking of moving objects using multidimensional histograms

Halil Cuce, Ahmet Cetin

Proceedings Volume 5428, (2004) https://doi.org/10.1117/12.553388

KEYWORDS: Image filtering, Linear filtering, Forward looking infrared, Detection and tracking algorithms, Optical filters, Infrared imaging, Video, Infrared radiation, Image processing, Video surveillance

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SPIE Journal Paper | 1 March 2004

Vision-based continuous GraffitiTM-like text entry system

I. Erdem, M. Erdem, Volkan Atalay, Ahmet Cetin

OE, Vol. 43, Issue 03, (March 2004) https://doi.org/10.1117/12.10.1117/1.1645257

KEYWORDS: Computing systems, Cameras, Detection and tracking algorithms, Optical character recognition, Video, Image segmentation, Machine vision, Computer vision technology, Optical engineering, Human-computer interaction

Proceedings Article | 5 January 2004 Paper

Correlation tracking based on wavelet domain information

Huseyin Ipek, I. Yilmaz, Yasemin Yardimci, Ahmet Cetin

Proceedings Volume 5204, (2004) https://doi.org/10.1117/12.507932

KEYWORDS: Wavelets, Sensors, Video, Video surveillance, Motion estimation, Wavelet transforms, Imaging systems, Distance measurement, Cameras, Target detection

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Proceedings Article | 7 August 2002 Paper

Image registration techniques for multimodal sensors

Tevfik Altinalev, Enis Cetin, Yasemin Yardimci

Proceedings Volume 4728, (2002) https://doi.org/10.1117/12.478536

KEYWORDS: Image registration, Sensors, Image filtering, Cameras, Infrared cameras, Image sensors, Wavelet transforms, Linear filtering, Edge detection, Detection and tracking algorithms

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Proceedings Article | 26 November 2001 Paper

Small moving object detection using adaptive subband decomposition and fractional lower order statistics in video sequences

A. Murat Bagci, Yasemin Yardimci, Enis Cetin

Proceedings Volume 4473, (2001) https://doi.org/10.1117/12.492744

KEYWORDS: Video, Digital filtering, Statistical analysis, Image processing, Wavelet transforms, Image filtering, Target detection, Cameras, Motion analysis, Optical filters

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SPIE Journal Paper | 1 November 2000

QR-RLS algorithm for error diffusion of color images

Gozde Unal, Yasemin Yardimci, Orhan Arikan, Enis Cetin

OE, Vol. 39, Issue 11, (November 2000) https://doi.org/10.1117/12.10.1117/1.1313749

KEYWORDS: Diffusion, Quantization, Error analysis, Digital filtering, Image processing, Image quality, Raster graphics, Image filtering, Composites, Printing

Proceedings Article | 13 July 2000 Paper

Small moving object detection using adaptive subband decomposition in video sequences

Rabi Zaibi, Enis Cetin, Yasemin Yardimci

Proceedings Volume 4048, (2000) https://doi.org/10.1117/12.392019

KEYWORDS: Video, Image processing, Digital filtering, Statistical analysis, Wavelet transforms, Error analysis, Image filtering, Target detection, Cameras, Motion analysis

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Proceedings Article | 28 December 1998 Paper

Set theoretic inverse halftoning method for grayscale and color images

Gozde Bozkurt, Enis Cetin

Proceedings Volume 3653, (1998) https://doi.org/10.1117/12.334647

KEYWORDS: Image restoration, Image filtering, Diffusion, Gaussian filters, Wavelets, Halftones, Image quality, Algorithm development, Error analysis, Binary data

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Proceedings Article | 9 January 1998 Paper

2D adaptive prediction-based Gaussianity tests in microcalcification detection

Metin Gurcan, Yasemin Yardimci, Enis Cetin

Proceedings Volume 3309, (1998) https://doi.org/10.1117/12.298376

KEYWORDS: Mammography, Digital filtering, Image filtering, Computer aided diagnosis and therapy, Error analysis, Nonlinear filtering, Picture Archiving and Communication System, Breast cancer, Computing systems, Databases

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Proceedings Article | 9 January 1998 Paper

Coding of fingerprint images using binary subband decomposition and vector quantization

Oemer Gerek, Enis Cetin

Proceedings Volume 3309, (1998) https://doi.org/10.1117/12.298317

KEYWORDS: Binary data, Nonlinear filtering, Image compression, Quantization, Digital filtering, Ions, Databases, Image processing, Chromium, Image filtering

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Proceedings Article | 10 January 1997 Paper

Detection of microcalcifications in mammograms using nonlinear subband decomposition and outlier labeling

Metin Guercan, Yasemin Yardimci, Enis Cetin, Rashid Ansari

Proceedings Volume 3024, (1997) https://doi.org/10.1117/12.263303

KEYWORDS: Mammography, Nonlinear filtering, Computer aided diagnosis and therapy, Image processing, Picture Archiving and Communication System, Digital filtering, Image filtering, Image enhancement, Nonlinear optics, Signal detection

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Proceedings Article | 27 February 1996 Paper

Wavelet domain textual coding of Ottoman script images

Oemer Gerek, Enis Cetin, Ahmed Tewfik

Proceedings Volume 2727, (1996) https://doi.org/10.1117/12.233272

KEYWORDS: Image compression, Stereolithography, Wavelets, Computer programming, Image filtering, Nonlinear filtering, Chromium, Databases, Wavelet transforms, Image resolution

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Proceedings Article | 16 September 1994 Paper

Multiresolution block coding method for visualization of compressed images in multimedia applications

Oemer Gerek, Enis Cetin

Proceedings Volume 2308, (1994) https://doi.org/10.1117/12.186039

KEYWORDS: Visualization, Image resolution, Image compression, Computer programming, Picture Archiving and Communication System, Multimedia, Image segmentation, Quantization, Visual compression, Information visualization

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Showing 5 of 35 publications

Conference Committee Involvement (2)

Visual Communications and Image Processing 2009

20 January 2009 | San Jose, California, United States

Visual Communications and Image Processing 2008

29 January 2008 | San Jose, California, United States

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