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3 results on '"Colas Schretter"'

1. Exact Compensation of Rotational Motion for Holographic Video Compression

Author

Raees Kizhakkumkara Muhamad, David Blinder, Tobias Birnbaum, Peter Schelkens, Athanasia Symeonidou, Colas Schretter, Faculty of Engineering, and Electronics and Informatics

Subjects
STFT, space frequency, Computer science, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Holography, Data_CODINGANDINFORMATIONTHEORY, GeneralLiterature_MISCELLANEOUS, law.invention, Compensation (engineering), law, Computer Science::Multimedia, angular spectrum, Codec, Computer vision, ComputingMethodologies_COMPUTERGRAPHICS, Motion compensation, computer generated hologram, business.industry, Rotation around a fixed axis, Angular spectrum method, Holographic display, rotational transformation, Artificial intelligence, video compression, business, Data compression
Abstract

Holographic video imposes impractical bitrates for storage and communication without compression. We introduce exact motion compensation in a codec using rotational transformation of angular spectrum and obtain SNR improvements of 20 dB over HEVC.

Published
2019

2. Compressing Macroscopic Near-field Digital Holograms With Wave Atoms

Author

Colas Schretter, David Blinder, Peter Schelkens, and Tobias Birnbaum

Subjects
Physics, business.industry, Holography, Physics::Optics, Near and far field, law.invention, symbols.namesake, Fourier transform, Optics, law, symbols, Fresnel number, Spatial frequency, business, Digital holography, Data compression, Image compression
Abstract

Pushing digital holography into mainstream markets requires efficient compression algorithms. Using a recent technique based on wave atoms, we explore its compression performance for macroscopic near-field holograms as a function of the Fresnel number.

Published
2018

3. A Roadmap Towards Holographic Television From a Signal Processing Perspective

Author

David Blinder, Ayyoub Ahar, Peter Schelkens, Heidi Ottevaere, Stijn Bettens, Adrian Munteanu, Tobias Birnbaum, Colas Schretter, Vitaliy Bilous, Athanasia Symeonidou, Electronics and Informatics, Faculty of Engineering, Applied Physics and Photonics, and Brussels Photonics Team

Subjects
Signal processing, Computer science, business.industry, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Holography, Holographic imaging, Ranging, Electronic, Optical and Magnetic Materials, Rendering (computer graphics), law.invention, Mechanics of Materials, law, Computer graphics (images), Digital image processing, Holographic display, Computer vision, Artificial intelligence, Imaging science, business, ComputingMethodologies_COMPUTERGRAPHICS
Abstract

In recent years, the domain of plenoptic imaging has seen significant scientific and industrial evolutions. We present novel signal processing technologies addressing holographic imaging, ranging from capture to rendering of complex amplitude digital holograms.

Published
2017

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