Christian R. Helmrich

ORCID

Publication Activity (10 Years)

Years Active: 2011-2024
Publications (10 Years): 20

Top Venues

University of Erlangen-Nuremberg, Germany (PHD)

Education History

University of Erlangen-Nuremberg, Germany

PHD

Publications

Anastasia Henkel, Christian R. Helmrich, Tobias Hinz, Jens Brandenburg, Adam Wieckowski, Benjamin Bross, Detlev Marpe, Thomas Wiegand
Fast First Pass in Two-Pass Video Encoding Using Sub-Sampling. PCS (2024)
Vignesh V. Menon, Christian R. Helmrich, Adam Wieckowski, Benjamin Bross, Detlev Marpe
Convex-hull Estimation using XPSNR for Versatile Video Coding. CoRR (2024)
Vignesh V. Menon, Anastasia Henkel, Prajit T. Rajendran, Christian R. Helmrich, Adam Wieckowski, Benjamin Bross, Christian Timmerer, Detlev Marpe
All-Intra Rate Control Using Low Complexity Video Features for Versatile Video Coding. ICIP (2023)
Vignesh V. Menon, Anastasia Henkel, Prajit T. Rajendran, Christian R. Helmrich, Adam Wieckowski, Benjamin Bross, Christian Timmerer, Detlev Marpe
All-intra rate control using low complexity video features for Versatile Video Coding. CoRR (2023)
Christian R. Helmrich, Anastasia Henkel, Tobias Hinz, Adam Wieckowski, Benjamin Bross, Detlev Marpe
Finalization of VVenC's Screen Content Detector and Two-Pass Rate Control Using Pre-Filtering Statistics. ICIP (2023)
Christian R. Helmrich, Christian Bartnik, Jens Brandenburg, Adam Wieckowski, Benjamin Bross, Detlev Marpe
A Constrained Variable Bit Rate (CVBR) Algorithm for VVenC, an Open VVC Encoder Implementation. VCIP (2023)
Christian R. Helmrich, Christian Bartnik, Jens Brandenburg, Valeri George, Tobias Hinz, Christian Lehmann, Ivan Zupancic, Adam Wieckowski, Benjamin Bross, Detlev Marpe
A Scene Change and Noise Aware Rate Control Method for VVenC, An Open VVC Encoder Implementation. PCS (2022)
Adam Wieckowski, Tobias Hinz, Christian R. Helmrich, Benjamin Bross, Detlev Marpe
An Optimized Temporal Filter Implementation for Practical Applications. PCS (2022)
Christian R. Helmrich, Ivan Zupancic, Jens Brandenburg, Valeri George, Adam Wieckowski, Benjamin Bross
Visually Optimized Two-Pass Rate Control for Video Coding Using the Low-Complexity XPSNR Model. VCIP (2021)
Adam Wieckowski, Jens Brandenburg, Tobias Hinz, Christian Bartnik, Valeri George, Gabriel Hege, Christian R. Helmrich, Anastasia Henkel, Christian Lehmann, Christian Stoffers, Ivan Zupancic, Benjamin Bross, Detlev Marpe
Vvenc: An Open And Optimized Vvc Encoder Implementation. ICME Workshops (2021)
Heiko Schwarz, Muhammed Z. Coban, Marta Karczewicz, Tzu-Der Chuang, Frank Bossen, Alexander Alshin, Jani Lainema, Christian R. Helmrich, Thomas Wiegand
Quantization and Entropy Coding in the Versatile Video Coding (VVC) Standard. IEEE Trans. Circuits Syst. Video Technol. 31 (10) (2021)
Jonathan Pfaff, Heiko Schwarz, Detlev Marpe, Benjamin Bross, Santiago De-Luxán-Hernández, Philipp Helle, Christian R. Helmrich, Tobias Hinz, Wang-Q Lim, Jackie Ma, Tung Nguyen, Jennifer Rasch, Michael Schäfer, Mischa Siekmann, Gayathri Venugopal, Adam Wieckowski, Martin Winken, Thomas Wiegand
Video Compression Using Generalized Binary Partitioning, Trellis Coded Quantization, Perceptually Optimized Encoding, and Advanced Prediction and Transform Coding. IEEE Trans. Circuits Syst. Video Technol. 30 (5) (2020)
Christian R. Helmrich, Mischa Siekmann, Sören Becker, Sebastian Bosse, Detlev Marpe, Thomas Wiegand
Xpsnr: A Low-Complexity Extension of The Perceptually Weighted Peak Signal-To-Noise Ratio For High-Resolution Video Quality Assessment. ICASSP (2020)
Christian R. Helmrich, Sebastian Bosse, Mischa Siekmann, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
Perceptually Optimized Bit-Allocation and Associated Distortion Measure for Block-Based Image or Video Coding. DCC (2019)
Christian Rudat, Christian R. Helmrich, Jani Lainema, Tung Nguyen, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
Inter-Component Transform for Color Video Coding. PCS (2019)
Sebastian Bosse, Michael Dietzel, Sören Becker, Christian R. Helmrich, Mischa Siekmann, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
Neural Network Guided Perceptually Optimized Bit-Allocation for Block-Based Image and Video Compression. ICIP (2019)
Johannes Erfurt, Christian R. Helmrich, Sebastian Bosse, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
A Study of the Perceptually Weighted Peak Signal-To-Noise Ratio (WPSNR) for Image Compression. ICIP (2019)
Christian R. Helmrich, Sebastian Bosse, Paul Keydel, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
A Spectrally Adaptive Noise Filling Tool for Perceptual Transform Coding of Still Images. ICCE-Berlin (2018)
Christian R. Helmrich, Bernd Edler
Signal-adaptive switching of overlap ratio in audio transform coding. ICASSP (2016)
Christian R. Helmrich, Bernd Edler
Audio Coding Using Overlap and Kernel Adaptation. IEEE Signal Process. Lett. 23 (5) (2016)
Emmanuel Ravelli, Christian R. Helmrich, Guillaume Fuchs, Markus Multrus
Low-complexity and robust coding mode decision in the EVS coder. ICASSP (2015)
Guillaume Fuchs, Christian R. Helmrich, Goran Markovic, Matthias Neusinger, Emmanuel Ravelli, Takehiro Moriya
Low delay LPC and MDCT-based audio coding in the EVS codec. ICASSP (2015)
Christian R. Helmrich, Bernd Edler
Signal-adaptive transform kernel switching for stereo audio coding. WASPAA (2015)
Christian R. Helmrich, Andreas Niedermeier, Stefan Bayer, Bernd Edler
Low-complexity semi-parametric joint-stereo audio transform coding. EUSIPCO (2015)
Tom Bäckström, Christian R. Helmrich
Arithmetic coding of speech and audio spectra using tcx based on linear predictive spectral envelopes. ICASSP (2015)
Christian R. Helmrich, Andreas Niedermeier, Sascha Disch, Florin Ghido
Spectral envelope reconstruction via IGF for audio transform coding. ICASSP (2015)
Takehiro Moriya, Yutaka Kamamoto, Noboru Harada, Tom Bäckström, Christian R. Helmrich, Guillaume Fuchs
Harmonic model for MDCT based audio coding with LPC envelope. EUSIPCO (2015)
Tom Bäckström, Christian R. Helmrich
Decorrelated innovative codebooks for ACELP using factorization of autocorrelation matrix. INTERSPEECH (2014)
Christian R. Helmrich, Goran Markovic, Bernd Edler
Improved low-delay MDCT-based coding of both stationary and transient audio signals. ICASSP (2014)
Christian R. Helmrich, Pontus Carlsson, Sascha Disch, Bernd Edler, Johannes Hilpert, Matthias Neusinger, Heiko Purnhagen, Nikolaus Rettelbach, Julien Robilliard, Lars F. Villemoes
Efficient transform coding of two-channel audio signals by means of complex-valued stereo prediction. ICASSP (2011)

Christian R. Helmrich.css-eqlu8i{font-size:small;padding-left:4px;}

Publication Activity (10 Years)

Top Topics

Top Venues

Christian R. Helmrich