Dr. Elli Angelopoulou Profile

Dr. Elli Angelopoulou

at Friedrich-Alexander-Univ Erlangen-Nürnberg

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Publications (11)

Proceedings Article | 12 March 2014 Paper

On the accuracy of a video-based drill-guidance solution for orthopedic and trauma surgery: preliminary results

Jessica Magaraggia, Gerhard Kleinszig, Wei Wei, Markus Weiten, Rainer Graumann, Elli Angelopoulou, Joachim Hornegger

Proceedings Volume 9036, 903610 (2014) https://doi.org/10.1117/12.2043508

KEYWORDS: Cameras, Imaging systems, Calibration, Bone, Prototyping, Surface plasmons, Error analysis, Surgery, Video, Stereoscopic cameras

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Proceedings Article | 31 May 2013 Paper

Color constancy in 3D-2D face recognition

Manuel Meyer, Christian Riess, Elli Angelopoulou, Georgios Evangelopoulos, Ioannis Kakadiaris

Proceedings Volume 8712, 87120S (2013) https://doi.org/10.1117/12.2018758

KEYWORDS: Facial recognition systems, Skin, Databases, Cameras, Biometrics, 3D modeling, Volume rendering, Detection and tracking algorithms, 3D image processing, Visibility

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Proceedings Article | 31 May 2013 Paper

The impact of specular highlights on 3D-2D face recognition

Vincent Christlein, Christian Riess, Elli Angelopoulou, Georgios Evangelopoulos, Ioannis Kakadiaris

Proceedings Volume 8712, 87120T (2013) https://doi.org/10.1117/12.2019014

KEYWORDS: Facial recognition systems, 3D modeling, Bidirectional reflectance transmission function, Databases, Detection and tracking algorithms, Skin, Nose, Volume rendering, Visibility, Cameras

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Proceedings Article | 12 March 2013 Paper

A video guided solution for screw insertion in orthopedic plate fixation

J. Magaraggia, G. Kleinszig, R. Graumann, E. Angelopoulou, J. Hornegger

Proceedings Volume 8671, 86710X (2013) https://doi.org/10.1117/12.2007718

KEYWORDS: Cameras, Video, Time division multiplexing, Imaging systems, Surgery, Electroluminescent displays, Skin, Binary data, Corner detection, Error analysis

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Proceedings Article | 23 February 2012 Paper

Semantic and topological classification of images in magnetically guided capsule endoscopy

P. Mewes, P. Rennert, A. Juloski, A. Lalande, E. Angelopoulou, R. Kuth, J. Hornegger

Proceedings Volume 8315, 83151A (2012) https://doi.org/10.1117/12.912280

KEYWORDS: Classification systems, Image classification, Endoscopy, Stomach, Image segmentation, Feature extraction, Cameras, Medical imaging, Computer aided diagnosis and therapy, Current controlled current source

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Proceedings Article | 9 March 2011 Paper

On-the-fly detection of images with gastritis aspects in magnetically guided capsule endoscopy

P. Mewes, D. Neumann, A. Juloski, E. Angelopoulou, J. Hornegger

Proceedings Volume 7963, 79631I (2011) https://doi.org/10.1117/12.878803

KEYWORDS: Stomach, Endoscopy, Image classification, Diagnostics, Pathology, RGB color model, Endoscopes, Bismuth, Light sources and illumination, Feature extraction

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Proceedings Article | 9 December 2004 Paper

Specular highlights of plastic surfaces and the Fresnel coefficient

Elli Angelopoulou, Sofya Poger

Proceedings Volume 5578, (2004) https://doi.org/10.1117/12.566776

KEYWORDS: Reflectivity, RGB color model, Refraction, Refractive index, Sensors, Cameras, Ceramics, Opacity, Reflection, Multispectral imaging

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Proceedings Article | 17 June 2003 Paper

Color of specular highlights

Elli Angelopoulou, Sofya Poger

Proceedings Volume 5007, (2003) https://doi.org/10.1117/12.473905

KEYWORDS: Reflectivity, RGB color model, Sensors, Refraction, Visual process modeling, Reflection, Bandpass filters, Minerals, Optical filters, Computer graphics

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Proceedings Article | 8 June 2001 Paper

Understanding the color of human skin

Elli Angelopoulou

Proceedings Volume 4299, (2001) https://doi.org/10.1117/12.429495

KEYWORDS: Skin, Reflectivity, Image processing, Human vision and color perception, Electronic imaging, Machine vision, Computer vision technology, Human vision research, Computer graphics, Visualization

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Proceedings Article | 20 January 1997 Paper

Curvature-based signatures for object description and recognition

Elli Angelopoulou, James Williams, Lawrence Wolff

Proceedings Volume 2909, (1997) https://doi.org/10.1117/12.263322

KEYWORDS: Light sources, Object recognition, Cameras, Optical spheres, Databases, Reflection, Condition numbers, Light sources and illumination, Fiber optic illuminators, Matrices

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Proceedings Article | 15 March 1994 Paper

3D stereo using photometric ratios

Lawrence Wolff, Elli Angelopoulou

Proceedings Volume 2065, (1994) https://doi.org/10.1117/12.169365

KEYWORDS: Cameras, Light sources, Reflection, Optical spheres, Light sources and illumination, Stereoscopic cameras, Algorithm development, Reflectivity, Image processing, Specular reflections

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Showing 5 of 11 publications

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