Christian R. Helmrich

Orcid: 0000-0001-6606-112X

According to our database1, Christian R. Helmrich authored at least 30 papers between 2011 and 2024.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
Convex-hull Estimation using XPSNR for Versatile Video Coding.
CoRR, 2024

Fast First Pass in Two-Pass Video Encoding Using Sub-Sampling.
Proceedings of the Picture Coding Symposium, 2024

2023
A Constrained Variable Bit Rate (CVBR) Algorithm for VVenC, an Open VVC Encoder Implementation.
Proceedings of the IEEE International Conference on Visual Communications and Image Processing, 2023

All-Intra Rate Control Using Low Complexity Video Features for Versatile Video Coding.
Proceedings of the IEEE International Conference on Image Processing, 2023

Finalization of VVenC's Screen Content Detector and Two-Pass Rate Control Using Pre-Filtering Statistics.
Proceedings of the IEEE International Conference on Image Processing, 2023

2022
An Optimized Temporal Filter Implementation for Practical Applications.
Proceedings of the Picture Coding Symposium, 2022

A Scene Change and Noise Aware Rate Control Method for VVenC, An Open VVC Encoder Implementation.
Proceedings of the Picture Coding Symposium, 2022

2021
Quantization and Entropy Coding in the Versatile Video Coding (VVC) Standard.
IEEE Trans. Circuits Syst. Video Technol., 2021

Visually Optimized Two-Pass Rate Control for Video Coding Using the Low-Complexity XPSNR Model.
Proceedings of the International Conference on Visual Communications and Image Processing, 2021

Vvenc: An Open And Optimized Vvc Encoder Implementation.
Proceedings of the 2021 IEEE International Conference on Multimedia & Expo Workshops, 2021

2020
Video Compression Using Generalized Binary Partitioning, Trellis Coded Quantization, Perceptually Optimized Encoding, and Advanced Prediction and Transform Coding.
IEEE Trans. Circuits Syst. Video Technol., 2020

Xpsnr: A Low-Complexity Extension of The Perceptually Weighted Peak Signal-To-Noise Ratio For High-Resolution Video Quality Assessment.
Proceedings of the 2020 IEEE International Conference on Acoustics, 2020

2019
Inter-Component Transform for Color Video Coding.
Proceedings of the Picture Coding Symposium, 2019

A Study of the Perceptually Weighted Peak Signal-To-Noise Ratio (WPSNR) for Image Compression.
Proceedings of the 2019 IEEE International Conference on Image Processing, 2019

Neural Network Guided Perceptually Optimized Bit-Allocation for Block-Based Image and Video Compression.
Proceedings of the 2019 IEEE International Conference on Image Processing, 2019

Perceptually Optimized Bit-Allocation and Associated Distortion Measure for Block-Based Image or Video Coding.
Proceedings of the Data Compression Conference, 2019

2018
A Spectrally Adaptive Noise Filling Tool for Perceptual Transform Coding of Still Images.
Proceedings of the 8th IEEE International Conference on Consumer Electronics - Berlin, 2018

2017
Efficient Perceptual Audio Coding Using Cosine and Sine Modulated Lapped Transforms.
PhD thesis, 2017

2016
Audio Coding Using Overlap and Kernel Adaptation.
IEEE Signal Process. Lett., 2016

Signal-adaptive switching of overlap ratio in audio transform coding.
Proceedings of the 2016 IEEE International Conference on Acoustics, 2016

2015
Signal-adaptive transform kernel switching for stereo audio coding.
Proceedings of the 2015 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2015

Low-complexity and robust coding mode decision in the EVS coder.
Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Spectral envelope reconstruction via IGF for audio transform coding.
Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Low delay LPC and MDCT-based audio coding in the EVS codec.
Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Arithmetic coding of speech and audio spectra using tcx based on linear predictive spectral envelopes.
Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Harmonic model for MDCT based audio coding with LPC envelope.
Proceedings of the 23rd European Signal Processing Conference, 2015

Low-complexity semi-parametric joint-stereo audio transform coding.
Proceedings of the 23rd European Signal Processing Conference, 2015

2014
Decorrelated innovative codebooks for ACELP using factorization of autocorrelation matrix.
Proceedings of the 15th Annual Conference of the International Speech Communication Association, 2014

Improved low-delay MDCT-based coding of both stationary and transient audio signals.
Proceedings of the IEEE International Conference on Acoustics, 2014

2011
Efficient transform coding of two-channel audio signals by means of complex-valued stereo prediction.
Proceedings of the IEEE International Conference on Acoustics, 2011


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