Dr. Violeta Dimitrova Madjarova Profile

Dr. Violeta Dimitrova Madjarova

Associate Professor at Bulgarian Academy of Sciences

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Author

Publications (12)

Proceedings Article | 20 June 2024 Poster + Paper

Edge-preserving denoising and super-resolution in OCT imagery using deep SMoE gating networks

Aytaç Özkan, Violeta Madjarova, Thomas Sikora, Elena Stoykova

Proceedings Volume 13006, 130061D (2024) https://doi.org/10.1117/12.3017126

KEYWORDS: Super resolution, Image sharpness, Optical coherence tomography, Image restoration, Denoising, Image processing, Image quality, Image enhancement, Interpolation

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Proceedings Article | 18 June 2024 Presentation + Paper

Speckle pattern optimization in laser speckle photometry for non-destructive testing

Elena Stoykova, Violeta Madjarova, Branimir Ivanov, Maryam Viqar

Proceedings Volume 12997, 129970P (2024) https://doi.org/10.1117/12.3022359

KEYWORDS: Speckle, Speckle pattern, Nondestructive evaluation, Photometry, Histograms, Binary data, Cameras, Image processing, Visualization, Image quality

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Proceedings Article | 1 April 2024 Poster + Paper

WAVE-UNET: wavelength-based image reconstruction method using attention UNET for OCT images

Maryam Viqar, Erdem Sahin, Violeta Madjarova, Elena Stoykova, Keehoon Hong

Proceedings Volume 12925, 129254D (2024) https://doi.org/10.1117/12.3006615

KEYWORDS: Optical coherence tomography, Image restoration, Image quality, Calibration, Speckle, Fourier transforms, Point spread functions, Veins, Teeth, Image processing

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Proceedings Article | 13 March 2024 Poster + Paper

Denoising OCT images using steered mixture of experts with multi-model inference

Aytaç Özkan, Elena Stoykova, Thomas Sikora, Violeta Madjarova

Proceedings Volume 12830, 1283009 (2024) https://doi.org/10.1117/12.3000625

KEYWORDS: Optical coherence tomography, Denoising, Speckle, Image quality, Neural networks, Machine learning, Image restoration

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Proceedings Article | 14 September 2010 Paper

Phase shift error compensation method for digital holography using statistics of speckle field

H. Kadono, M. Kataoka, V. Madjarova

Proceedings Volume 7387, 738706 (2010) https://doi.org/10.1117/12.871117

KEYWORDS: Phase shifts, Speckle, Error analysis, Digital holography, Phase shifting, Interferometry, Holographic interferometry, Holograms, 3D image reconstruction, CCD cameras

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Proceedings Article | 18 June 2007 Paper

Stress behavior of ball grid array (BGA) studied by dynamic electronic speckle pattern interferometry (DESPI)

Violeta Dimitrova Madjarova, Satoru Toyooka, Hiroyuki Chida, Hirofumi Kadono

Proceedings Volume 6616, 66162R (2007) https://doi.org/10.1117/12.726094

KEYWORDS: Speckle pattern, Interferometry, Speckle, Ferroelectric materials, Data processing, Mirrors, Modulation, Phase shift keying, Fringe analysis, Image filtering

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Proceedings Article | 20 February 2006 Paper

Investigations of soft and hard tissues in oral cavity by spectral domain optical coherence tomography

Violeta Dimitrova Madjarova, Yoshiaki Yasuno, Shuichi Makita, Yasuaki Hori, Jean-Baptiste Voeffray, Masahide Itoh, Toyohiko Yatagai, Masami Tamura, Toshiyuki Nanbu

Proceedings Volume 6079, 60790N (2006) https://doi.org/10.1117/12.648359

KEYWORDS: Teeth, Dental caries, Optical coherence tomography, Bone, Tissues, 3D image processing, Light sources, Diagnostics, In vivo imaging, Signal detection

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Proceedings Article | 20 February 2006 Paper

Three-dimensional measurement by high-speed line-field Fourier-domain optical coherence tomography in vivo

Shuichi Makita, Yosifumi Nakamura, Yoshiaki Yasuno, Takashi Endo, Masahiro Yamanari, Violeta Dimitrova Madjarova, Goki Aoki, Masahide Itoh, Toyohiko Yatagai

Proceedings Volume 6079, 607911 (2006) https://doi.org/10.1117/12.648332

KEYWORDS: Optical coherence tomography, Cameras, In vivo imaging, 3D acquisition, Spectroscopy, 3D image processing, Tissues, Camera shutters, Tomography, Visualization

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Proceedings Article | 20 February 2006 Paper

Three-dimensional investigation of in vivo anterior eye segments by swept-source optical coherence tomography with ready-for-shipping scanning light source

Yoshiaki Yasuno, Violeta Dimitrova Madjarova, Shuichi Makita, Masahiro Akiba, Atsushi Morosawa, Changho Chong, Toru Sakai, Kin-Pui Chan, Masahide Itoh, Toyohiko Yatagai

Proceedings Volume 6079, 60790W (2006) https://doi.org/10.1117/12.648335

KEYWORDS: Optical coherence tomography, Light sources, In vivo imaging, Eye, Tomography, Signal detection, 3D scanning, Calibration, Sensors, Mirrors

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Proceedings Article | 27 May 2003 Paper

Hilbert transform method for analysis of ESPI for the study of dynamic events

Violeta Madjarova, Hirofumi Kadono, Satoru Toyooka

Proceedings Volume 4933, (2003) https://doi.org/10.1117/12.516631

KEYWORDS: Speckle, Signal processing, CCD cameras, Speckle pattern, Phase shift keying, Filtering (signal processing), Data processing, Spatial resolution, Image processing, Image filtering

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Proceedings Article | 8 May 2001 Paper

Dynamic measurement of plastic deformation field by ESPI

Satoru Toyooka, Qing-Chuan Zhang, V. Madjarova, - Suprapedi, Rini Widiastuti

Proceedings Volume 4416, (2001) https://doi.org/10.1117/12.427024

KEYWORDS: Speckle, Interferometry, Fringe analysis, Speckle pattern, Aluminum, Camera shutters, Analytical research, Phase measurement, Charge-coupled devices, CCD cameras

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Proceedings Article | 19 August 1998 Paper

One-beam digital speckle interferometry applied to semimentation in fluids investigations

Ilia Roussev, Evtim Toshev, Pavel Koulev, Todor Partalin, Violeta Madjarova

Proceedings Volume 3573, (1998) https://doi.org/10.1117/12.321030

KEYWORDS: Particles, Image segmentation, Speckle, Photography, Glasses, Surface plasmons, Fourier transforms, Spherical lenses, Minerals, CCD cameras

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Showing 5 of 12 publications

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