ABOUT

Niko Stefanoski Profile Picture

My name is Niko and I am heading the Visual Computing group at uniqFEED.


Together with my team, I work on applied R&D topics involving machine learning, computer vision, graphics and video distribution. Besides R&D work, I am passionate about productizing research findings in real-time and distributed environments and creating new business opportunities. I love exploring the mathematical essence behind practical value.


Short CV

uniqFEED AG

Head of Visual Computing

1/2019 - present

Head of Product Development

01/2016 - 01/2019

Disney Research

Associate Research Scientist

01/2014 - 12/2015

Post-doctoral Researcher

04/2010 - 12/2013

ISO/IEC MPEG Standardization

MPEG Delegate representing the Walt Disney Company

09/2010 - 12/2015

MPEG Delegate representing the Leibniz Universität Hannover

02/2004 - 02/2010

Leibniz Universität Hannover

Dr.-Ing. - Information Processing

02/2011

Research Associate

01/2004 - 03/2010

Dipl.-Math. - Mathematics, Computer Science, Telecommunications

06/2003



Publications

Advanced tools and framework for historical film restoration

S. Croci, T. Aydin, N. Stefanoski, M. Gross, A. Smolic

J. Electronic Imaging 2017



Real-time Temporally Coherent Local HDR Tone Mapping

S. Croci, T. Aydin, N. Stefanoski, M. Gross, A. Smolic

ICIP 2016


Luminance Independent Chromaticity Preprocessing for HDR Video Coding

S. Mahmalat, N. Stefanoski, D. Luginbuehl, T. O. Aydin, A. Smolic

ICIP 2016


Art-Directable Continuous Dynamic Range Video

A. Chapiro, T. Aydın, N. Stefanoski, S. Croci, A. Smolic, M. Gross

Computers & Graphics 2015


Chromatic Calibration of an HDR Display using 3D Octree Forests

Jing Liu, Nikolce Stefanoski, Tunc Aydin, Anselm Grundhöfer, Aljoscha Smolic

ICIP 2015


Key-frame Based Spatiotemporal Scribble Propagation

Pelin Dogan, Tunc Aydin, Nikolce Stefanoski, Aljoscha Smolic

WICED 2015


Temporally Coherent Local Tone Mapping of HDR Video

T. Aydin, N. Stefanoski, S. Croci, M. Gross, A. Smolic

SIGGRAPH Asia 2014


Automatic View Synthesis by Image-Domain-Warping

N. Stefanoski, O. Wang, M. Lang, P. Greisen, S. Heinzle, A. Smolic

IEEE Transactions on Image Processing, Issue 99, May 2013.


Image Domain Warping for Stereoscopic 3D Applications

O. Wang, M. Lang, N. Stefanoski, A. Hornung, O. Sorkine, A. Smolic, M. Gross

A book chapter in "Emerging Technologies for 3D Video: Creation, Coding, Transmission and Rendering", F. Dufaux, B. Pesquet-Popescu, M. Cagnazzo Wiley, ISBN: 978-1-118-35511-4, May 2013.


Depth Estimation and Depth Enhancement by Diffusion of Depth Features

N. Stefanoski, C. Bal, M. Lang, O. Wang, A. Smolic

ICIP 2013



Disparity-aware Stereo 3D Production Tools

A.Smolic, S. Poulakos, S. Heinzle, P. Greisen, M. Lang, A. Hornung, M. Farre, N. Stefanoski, O. Wang, L. Schnyder, R. Monroy, M. Gross

CVMP 2011


Extending SVC by Content-adaptive Spatial Scalability

Yongzhe Wang, Nikolce Stefanoski, Manuel Lang, Alexander Hornung, Aljoscha Smolic, Markus Gross

ICIP 2011


Automatic Content Creation for Multiview Autostereoscopic Displays Using Image Domain Warping

Miquel Farre, Oliver Wang, Manuel Lang, Nikolce Stefanoski, Alexander Hornung, Aljosa Smolic

Hot3D Workshop 2011


Scalable Predictive Coding of Animated 3D Meshes

Nikolce Stefanoski

Dissertation, published in "Fortschritt-Berichte VDI, Reihe 10, Informatik, Kommunikation, Nr. 813"


Content-Adaptive Spatial Scalability for Scalable Video Coding

Yongzhe Wang, Nikolce Stefanoski, Xiangzhong Fang, and Aljoscha Smolic

PCS 2010


Non-linear Warping and Warp Coding for Content-adaptive Prediction in Advanced Video Coding Applications

Aljoscha Smolic, Yongzhe Wang, Nikolce Stefanoski, Manuel Lang, Alexander Hornung, Markus H. Gross

ICIP 2010


SPC: Fast and Efficient Scalable Predictive Coding of Animated Meshes

Nikolce Stefanoski, Jörn Ostermann

Computer Graphics Forum, Vol. 29, Nr. 1, pp. 101-116, 2010



Frame-Based Compression of Animated Meshes in MPEG-4

K. Mamou, N. Stefanoski, T. Zaharia, J. Ostermann, F. Prêteux

ICME 2008


Compression of 3D Meshes - Applications, Approaches, Standards

Nikolce Stefanoski, Libor Vasa, Jörn Ostermann

3DTV-CON 2008


A Survey on Coding of Static and Dynamic 3D Meshes

A. Smolic, R. Sondershaus, N. Stefanoski, L. Vasa, K. Mueller, J. Ostermann, T. Wiegand

A book chapter in "Three-Dimensional Television: Capture, Transmission, Display", Haldun M. Ozaktas, and Levent Onural, Springer Verlag, Heidelberg, December 2007.


Coding Algorithms for 3DTV - A Survey

A. Smolic, K. Mueller, N. Stefanoski, J. Ostermann, A. Gotchev, G.B. Akar, G. Triantafyllidis, A. Koz

IEEE Transactions on Circuits and Systems for Video Technology, Vol. 17, Nr. 11, pp. 1606 - 1621, November 2007


Layered Predictive Coding of Time-Consistent Dynamic 3D Meshes Using a Non-Linear Predictor

Nikolce Stefanoski, Patrick Klie, Xiaoliang Liu, Jörn Ostermann

ICIP 2007


Scalable Linear Predictive Coding of Time-Consistent 3D Mesh Sequences

Nikolce Stefanoski, Xiaoliang Liu, Patrick Klie, Jörn Ostermann

3DTV-CON 2007


A Framework for Scene-Flow Driven Creation of Time Consistent Dynamic 3D Objects Using Mesh Parametrizations

Patrick Klie, Eugen Okon, Nikolce Stefanoski, Jörn Ostermann

3DTV-CON 2007


Connectivity-Guided Predictive Compression of Dynamic 3D Meshes

Nikolce Stefanoski, Joern Ostermann

ICIP 2006


Adaptation of a Generic Face Model to a 3D Scan

Axel Weissenfeld, Nikolce Stefanoski, Shen Qiuqiong, Joern Ostermann

ICOB 2005


Mixed Poisson approximation of node depth distributions in random binary search trees

Rudolf Grübel, Nikolce Stefanoski

Annals of Applied Probability, Vol. 15, Nr. 1, pp. 279-297, 2005



Patents

Perceptual Color Transformations for Wide Color Gamut Video Coding

D. Luginbuhl, T. Aydin, A. Smolic, N. Stefanoski

US20160323556B2, 2019, Granted


Methods for Creating and Distributing Art-directable Continuous Dynamic Range Video

A. Smolic, A. Chapiro, S. Croci, T. Aydin, N. Stefanoski, M. Gross

US10349127B2, 2019, Granted


Saliency-weighted Video Quality Assessment

T. Aydin, N. Stefanoski, A. Smolic, M. Arana

US9922411B2, 2018, Granted


Interactive Broadcast

Nikolce Stefanoski, Aljoscha Smolic

US9986278B2, 2018, Granted


Chromatic Calibration of an HDR Display using 3D Octree Forests

N. Stefanoski, T. Aydin, J. Liu, A. Grundhofer, A. Smolic

US9997134B2, 2018, Granted


High Dynamic Range Tone Mapping

A. Smolic, T. Aydin, S. Croci, N. Stefanoski

US9979895B2, 2018, Granted


Temporally coherent local tone mapping of high dynamic range video

T. Aydin, S. Croci, A. Smolic, N. Stefanoski, M. Gross

US9378543B2, 2016, Granted


Synthesizing Views Based on Image Domain Warping

N. Stefanoski, A. Smolic, M. Lang, M. Farré, A. Hornung, P. C. E. Fricke, O. Wang

US9445072B2, 2016, Granted


Method and System for Providing and Displaying Optional Overlays

A. Smolic, N. Stefanoski, O. Wang

US 20150135212 A1, 2016, Application



Content adaptive and art directable scalable video coding

N. Stefanoski, A. Smolic, Y. Wang, M. Lang, A. Hornung, M. Gross

US8514932B2, 2013, Granted


Scalable compression of time-consistent 3D mesh sequences

N. Stefanoski, J. Ostermann, P. Klie

US8502815B2, 2013, Granted


Skalierbare komprimierung zeitkonsistenter 3D-Netzwerksequenzen

N. Stefanoski, J. Ostermann, P. Klie

EP2147557B1, 2012, Granted



MPEG Standardization Activities

Proposal for luminance independent chromaticity preprocessing for HEVC

S. Mahmalat, N. Stefanoski, T. Aydın, D. Luginbühl, A. Smolic

ISO/IEC JTC1/SC29/WG11, Doc. M37017, Geneva, Switzerland, October 2015


Chromatic Calibration of an HDR Display using 3D Octree Forests

N. Stefanoski, J. Liu, T. Aydin, A. Grundhöfer, A. Smolic

ISO/IEC JTC1/SC29/WG11, Doc. M37016, Geneva, Switzerland, , October 2015


Report on out-of-BT.709 colors in current HDR / WCG video coding anchors

S. Mahmalat, N. Stefanoski, T. Aydin, A. Smolic

ISO/IEC JTC1/SC29/WG11, Doc. M37015, Geneva, Switzerland, October 2015


Proposal for an SEI message on selectable overlays

N. Stefanoski, O. Wang, A. Smolic (DRZ), T. Szypulski (ESPN)

JCT-3V/JCT-VC, Doc. JCT3V-H0021/JCTVC-Q0045, Valencia, Spain, March, 2014


Proposal for supporting optional overlays with help of auxiliary pictures

N. Stefanoski, O. Wang, A. Smolic (DRZ), T. Szypulski (ESPN)

JCT-3V/JCT-VC, Doc. JCT3V-G0105/JCTVC-P0092, San Jose, USA, January, 2014


Proposal for Supporting Optional Overlays with MV-HEVC

N. Stefanoski, O. Wang, A. Smolic (DRZ), T. Szypulski (ESPN)

JCT-3V/JCT-VC, Doc. JCT3V-F0057/JCTVC-O0358, Geneva, Switzerland, October, 2013


Revision of the Alternative Depth Info SEI message

N. Stefanoski, A. Smolic, T. Senoh, M. Tanimoto

JCT-3V, Doc. JCT3V-E0034, Vienna, Austria, July 2013


Summary Report on Alternative 3D Formats

Masayuki Tanimoto, Takanori Senoh, Nikolce Stefanoski

JCT-3V, Doc. JCT3V-E0008, Vienna, Austria, July 2013


Draft Text for Signaling Warp Maps as an Alternative 3D Format in 3D-HEVC

Nikolce Stefanoski, Aljoscha Smolic

JCT-3V, Doc. JCT3V-D0103, Incheon, South Korea, April 2013


JCT-3V AHG Report: Alternative 3D Formats

Masayuki Tanimoto, Takanori Senoh, Nikolce Stefanoski

JCT-3V, Doc. JCT3V-D0008, Incheon, South Korea, April 2013


Multiview video + warp coding with a MVC+D-like MV-HEVC-based coding system

Nikolce Stefanoski, Aljoscha Smolic

JCT-3V, Doc. JCT3V-C0033, Geneva, Switzerland, January 2013


Subjective testing results on comparing warp-based with depth-based synthesis from coded data at same bit-rate

Nikolce Stefanoski

JCT-3V, Doc. JCT3V-C0240, January 2013, Geneva, Switzerland


JCT-3V AHG Report: Alternative 3D Formats

Masayuki Tanimoto, Takanori Senoh, Nikolce Stefanoski

JCT-3V, Doc. JCT3V-C0008, Geneva, Switzerland, January 2013


New warp data for IDW-based view synthesis experiments

Nikolce Stefanoski, Aljoscha Smolic

JCT-3V, Doc. JCT3V-B0074, Shanghai, China, October 2012


Proposal to compare synthesis quality of IDWR with VSRS-1D-Fast in a subjective test

Nikolce Stefanoski, Aljoscha Smolic

JCT-3V, Doc. JCT3V-B0077, Shanghai, China, October 2012


Subjective testing results on comparing synthesis quality of IDWR and VSRS 1D Fast

Nikolce Stefanoski, Aljoscha Smolic

JCT-3V, Doc. JCT3V-B0225, Shanghai, China, October 2012


AHG8 Report on Alternative 3D Format

Masayuki Tanimoto, Takanori Senoh, Nikolce Stefanoski

JCT-3V, Doc. JCT3V-B0008, Shanghai, China, October 2012


Test data and view synthesis software for warp coding and IDW-based view synthesis experiments

Nikolce Stefanoski, Aljoscha Smolic

JCT-3V, Doc. JCT3V-A0003, Stockholm, Sweden, July 2012


Results on coding of warps using HEVC

Nikolce Stefanoski, Aljoscha Smolic

JCT-3V, Doc. JCT3V-A0004, Stockholm, Sweden, July 2012


BoG Report: Preparation of Text on an Exploration Experiment on Warp Coding and Synthesis

Nikolce Stefanoski

JCT-3V, Doc. JCT3V-A0175, Stockholm, Sweden, July 2012


Coding of Warps for IDW-based View Synthesis in 3DV Applications

Nikolce Stefanoski, Aljoscha Smolic

ISO/IEC JTC1/SC29/WG11, Doc. M23558, San Jose, USA, January 2012


Description of 3D Video Coding Technology Proposal by Disney Research Zurich and Fraunhofer HHI

Nikolce Stefanoski, Pedro Espinosa, Oliver Wang, Manuel Lang, Aljoscha Smolic, Sebastian Bosse, Miquel Farre, Karsten Müller, Heiko Schwarz, Martin Winken, Thomas Wiegand

ISO/IEC JTC1/SC29/WG11, Doc. M22668, Geneva, Switzerland, November 2011


Requirements and Demonstration of Content-adaptive SVC

Aljoscha Smolic, Nikolce Stefanoski

ISO/IEC JTC1/SC29/WG11, Doc. M22666, Geneva, Switzerland, November 2011


Image Domain Warping as Alternative to DIBR for Advanced 3DV Applications

Aljoscha Smolic, Miquel Angel Farre, Oliver Wang, Nikolce Stefanoski, Alexander Hornung, Manuel Lang

ISO/IEC JTC1/SC29/WG11, Doc. M19995, Geneva, Switzerland, March 2011


FAMC decoder software description

K. Mamou, Kirchhoffer H., Stefanoski N., Marpe D., Müller K., Ostermann J., Zaharia T., Prêteux F.

ISO/IEC JTC1/SC29/WG11, Doc. M14934, Shenzhen, China, October 2007


FAMC decoder conformance

Mamou K., Kirchhoffer H., Stefanoski N., Marpe D., Müller K., Ostermann J., Zaharia T., Prêteux F.

ISO/IEC JTC1/SC29/WG11, Doc. M14936, Shenzhen, China, October 2007


FAMC's layer-based scalable extension

Mamou K., Stefanoski N., Zaharia T., Ostermann J., Prêteux F.

ISO/IEC JTC1/SC29/WG11, Doc. M14652, Lausanne, Switzerland, July 2007


FAMC: bitstream description for the layer-based scalable extension

Mamou K., Stefanoski N., Zaharia T., Ostermann J., Prêteux F.

ISO/IEC JTC1/SC29/WG11, Doc. M14653, Lausanne, Switzerland, July 2007


FAMC with progressive transmission and scalable rendering functionalities

Mamou K., Stefanoski N., Zaharia T., Ostermann J., Prêteux F.

SO/IEC JTC1/SC29/WG11, Doc. M14654, Lausanne, Switzerland, July 2007


Scalable Compression of Dynamic 3D Meshes

Nikolce Stefanoski, Jörn Ostermann

ISO/IEC JTC1/SC29/WG11, Doc. M14363, San Jose, USA, April 2007



Awards

2018

Adapt: Entirely software-based virtual advertising technology

R. Dragon, L. Gysin, N. Stefanoski, A. Martinovic, U. Müller, P. A. Entschev, M. Paul

German Innovation Award 2018, Special