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Possible advisorsa guess from early papers, not confirmed

  • Joachim Weickert

    Possible advisor · last author on 3 of their early first-author papers, 2012–2015

    Suggested from co-authorship

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Works62 from public data

TitleCited by
  • NTIRE 2018 Challenge on Single Image Super-Resolution: Methods and Results

    Radu Timofte, Shuhang Gu, Jiqing Wu, Luc Van Gool, Lei Zhang, Shuicheng Yan, Muhammad Haris, Gregory Shakhnarovich, +22 more

    IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) · 2018

    360
  • Normalized Cut Loss for Weakly-Supervised CNN Segmentation

    Meng Tang, Abdelaziz Djelouah, Federico Perazzi, Yuri Y. Boykov, Christopher Schroers

    IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings · 2018

    This work proposes a new principled loss function evaluating network output with criteria standard in "shallow" segmentation, e.g. normalized cut which evaluates only seeds where labels are known while normalized cut softly evaluates consistency of all pixels.

    351
  • On Regularized Losses for Weakly-supervised CNN Segmentation

    Meng Tang, Federico Perazzi, Abdelaziz Djelouah, Ismail Ben Ayed, Christopher Schroers, Yuri Y. Boykov

    Lecture notes in computer science · 2018

    This approach simplifies weakly-supervised training by avoiding extra MRF/CRF inference steps or layers explicitly generating full masks, while improving both the quality and efficiency of training.

    339
  • A Fully Progressive Approach to Single-Image Super-Resolution

    Yifan Wang, Federico Perazzi, Brian McWilliams, Alexander Sorkine‐Hornung, Olga Sorkine‐Hornung, Christopher Schroers

    IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) · 2018

    To obtain more photorealistic results, a generative adversarial network (GAN) is designed, named ProGanSR, that follows the same progressive multi-scale design principle and constitutes a principled multi- scale approach that increases the reconstruction quality for all upsampling factors simultaneously.

    285
  • Neural Inter-Frame Compression for Video Coding

    Abdelaziz Djelouah, Joaquim Campos, Simone Schaub-Meyer, Christopher Schroers

    IEEE/CVF International Conference on Computer Vision (ICCV) · 2019

    218
  • PhaseNet for Video Frame Interpolation

    Simone Schaub-Meyer, Abdelaziz Djelouah, Brian McWilliams, Alexander Sorkine‐Hornung, Markus H. Groß, Christopher Schroers

    IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings · 2018

    This work proposes a new approach, PhaseNet, that is designed to robustly handle challenging scenarios while also coping with larger motion, and shows that this is superior to the hand-crafted heuristics previously used in phase-based methods and compares favorably to recent deep learning based approaches for video frame interpolation on challenging datasets.

    200
  • High‐Resolution Neural Face Swapping for Visual Effects

    Jacek Naruniec, Leonhard Helminger, Christopher Schroers, Romann M. Weber

    Computer Graphics Forum · 2020

    This is the first method capable of rendering photo‐realistic and temporally coherent results at megapixel resolution and incorporates a refinement strategy into the face landmark stabilization algorithm to achieve temporal stability, which is crucial for working with high‐resolution videos.

    153
  • Point Cloud Noise and Outlier Removal for Image-Based 3D Reconstruction

    Katja Wolff, Changil Kim, Henning Zimmer, Christopher Schroers, Mario Botsch, Olga Sorkine‐Hornung, Alexander Sorkine‐Hornung

    International Conference on 3D Vision (3DV) · 2016

    110
  • Blind image super-resolution with spatially variant degradations

    Victor Cornillère, Abdelaziz Djelouah, Yifan Wang, Olga Sorkine‐Hornung, Christopher Schroers

    ACM Transactions on Graphics · 2019

    This work proposes a solution that relies on a degradation aware SR network to synthesize the HR image given a low resolution image and the corresponding blur kernel and presents an optimization procedure that is able to recover both the degradation kernel and the high resolution image by minimizing the error predicted by the kernel discriminator.

    98
  • Cyclic Schemes for PDE-Based Image Analysis

    Joachim Weickert, Sven Grewenig, Christopher Schroers, Andrés Bruhn

    International Journal of Computer Vision · 2015

    This work investigates a class of efficient numerical algorithms for many partial differential equations (PDEs) in image analysis that are applicable to parabolic or elliptic PDEs that have bounded coefficients and lead to space discretisations with symmetric matrices and shows that one should use parameter cycles that result from factorisations of box filters.

    68
  • Deep Generative Video Compression

    Salvator Lombardo, Jun Han, Christopher Schroers, Stephan Mandt

    neural information processing systems · 2019

    This work proposes an end-to-end, deep generative modeling approach to compress temporal sequences with a focus on video that builds upon variational autoencoder models for sequential data and combines them with recent work on neural image compression.

    63
  • VideoSnapping

    Oliver Wang, Christopher Schroers, Henning Zimmer, Markus H. Groß, Alexander Sorkine‐Hornung

    ACM Transactions on Graphics · 2014

    This work first derives a robust approximation of alignment quality between pairs of clips, computed as a weighted histogram of feature matches, and finds optimal temporal mappings (constituting frame correspondences) using a graph-based approach that allows for very efficient evaluation with artist constraints.

    60
  • Video Compression with Entropy-Constrained Neural Representations

    Carlos Francısco Sımões Gomes, Roberto Azevedo, Christopher Schroers

    IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings · 2023

    37
  • Neural frame interpolation for rendered content

    Karlis Martins Briedis, Abdelaziz Djelouah, Mark Meyer, Ian McGonigal, Markus H. Groß, Christopher Schroers

    ACM Transactions on Graphics · 2021

    This paper proposes a method specifically targeted to achieve high-quality frame interpolation for rendered content and is able to significantly push the state-of-the-art in frame interpolated motion estimates, more accurate occlusion handling and to correctly reconstruct non-linear motion between keyframes.

    34
  • Neural Video Compression with Spatio-Temporal Cross-Covariance Transformers

    Zhenghao Chen, Lucas Relic, Roberto Gerson de Albuquerque Azevedo, Yang Zhang, Markus H. Groß, Dong Xu, Luping Zhou, Christopher Schroers

    ACM International Conference on Multimedia (ACM MM) · 2023

    This work proposes a new 3D-based transformer module: Spatio-Temporal Cross-Covariance Transformer (ST-XCT), which is integrated into various key coding components of NVC, such as feature extraction, frame reconstruction, and entropy modeling, demonstrating its generalizability.

    33
  • Controllable Inversion of Black-Box Face Recognition Models via Diffusion

    Manuel Kansy, Anton Raël, Graziana Mignone, Jacek Naruniec, Christopher Schroers, Markus H. Groß, Romann M. Weber

    IEEE/CVF International Conference on Computer Vision Workshops (ICCVW) · 2023

    This method is the first black-box face recognition model inversion method that offers intuitive control over the generation process and leverages the stochastic nature of the denoising diffusion process to produce high-quality, identity-preserving face images with various backgrounds, lighting, poses, and expressions.

    31
  • An Omnistereoscopic Video Pipeline for Capture and Display of Real-World VR

    Christopher Schroers, Jean‐Charles Bazin, Alexander Sorkine‐Hornung

    ACM Transactions on Graphics · 2018

    A first complete guide and analysis for reimplementing a system for capturing and displaying real-world VR video content, based on the concept of omnistereoscopic panoramas is provided.

    30
  • Anisotropic Range Image Integration

    Christopher Schroers, Henning Zimmer, Levi Valgaerts, Andrés Bruhn, Oliver Demetz, Joachim Weickert

    Lecture notes in computer science · 2012

    This paper extends the state-of-the-art approach of Zach et al.(2007) in several ways, replacing the isotropic space-variant smoothing behaviour by an anisotropic (direction-dependent) one and using the more accurate closest signed distances instead of directional signed distances when converting range images into 3D signed distance fields.

    27
  • Deep Probabilistic Video Compression

    Jun Han, Salvator Lombardo, Christopher Schroers, Stephan Mandt

    arXiv.org · 2018

    This model uses advances in variational autoencoders (VAEs) for sequential data and combines it with recent work on neural image compression to propose a variational inference approach to deep probabilistic video compression.

    24
  • Lossy Image Compression with Normalizing Flows

    Leonhard Helminger, Abdelaziz Djelouah, Markus H. Groß, Christopher Schroers

    arXiv · 2020

    23
  • Deep Adaptive Sampling and Reconstruction Using Analytic Distributions

    Farnood Salehi, Marco Manzi, Gerhard Röthlin, Romann M. Weber, Christopher Schroers, Marios Papas

    ACM Transactions on Graphics · 2022

    This work proposes an adaptive sampling and reconstruction method for offline Monte Carlo rendering that produces sampling maps constrained by a user-defined budget that minimize the expected future denoising error and supports joint end-to-end training of the sampling and Denoising networks.

    21
  • Frame Interpolation Transformer and Uncertainty Guidance

    Markus Plack, Matthias B. Hullin, Karlis Martins Briedis, Markus H. Groß, Abdelaziz Djelouah, Christopher Schroers

    IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings · 2023

    20
  • Content Adaptive Optimization for Neural Image Compression

    Joaquim Campos, Simon Meierhans, Abdelaziz Djelouah, Christopher Schroers

    arXiv · 2019

    20
  • Lossy Image Compression with Foundation Diffusion Models

    Lucas Relic, Roberto Gerson de Albuquerque Azevedo, Markus H. Groß, Christopher Schroers

    Lecture notes in computer science · 2024

    18
  • Introducing Maximal Anisotropy into Second Order Coupling Models

    David Hafner, Christopher Schroers, Joachim Weickert

    Lecture notes in computer science · 2015

    This work proposes a second order regulariser that allows to penalise both jumps and kinks in a direction-dependent way, and systematically introduces anisotropic concepts from first order approaches.

    17
  • Stereo Conversion with Disparity-Aware Warping, Compositing and Inpainting

    Lukas Mehl, Andrés Bruhn, Markus H. Groß, Christopher Schroers

    IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) · 2024

    16
  • Versatile Vision Foundation Model for Image and Video Colorization

    Vukasin Bozic, Abdelaziz Djelouah, Yang Zhang, Radu Timofte, Markus H. Groß, Christopher Schroers

    ACM SIGGRAPH Conference Papers (SIGGRAPH) · 2024

    This work shows how a latent diffusion model, pre-trained on text-to-image synthesis, can be finetuned for image colorization and provide a flexible solution for a wide variety of scenarios: high quality direct colorization with diverse results, user guided colorization through colors hints, text prompts or reference image and finally video colorization.

    14
  • Bridging the Gap between Gaussian Diffusion Models and Universal Quantization for Image Compression

    Lucas Relic, Roberto Gerson de Albuquerque Azevedo, Yang Zhang, Markus H. Groß, Christopher Schroers

    IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings · 2025

    This work proposes a novel quantization-based forward diffusion process with theoretical foundations that tackles all three critical gaps in previous approaches following this paradigm, and achieves the best rate-distortion-realism performance, outperforming previous related works.

    13
  • High-Fidelity Novel View Synthesis via Splatting-Guided Diffusion

    Xiang Zhang, Yang Zhang, Lukas Mehl, Markus H. Groß, Christopher Schroers

    ACM SIGGRAPH Conference Papers (SIGGRAPH) · 2025

    This paper introduces SplatDiff, a pixel-splatting-guided video diffusion model designed to synthesize high-fidelity novel views from a single image, and proposes an aligned synthesis strategy for precise control of target viewpoints and geometry-consistent view synthesis.

    13
  • Combining Frame and GOP Embeddings for Neural Video Representation

    Jens Eirik Saethre, Roberto Gerson de Albuquerque Azevedo, Christopher Schroers

    IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings · 2024

    13
  • Generic Image Restoration with Flow Based Priors

    Leonhard Helminger, Michael Bernasconi, Abdelaziz Djelouah, Markus H. Groß, Christopher Schroers

    IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) · 2021

    13
  • Reenact Anything: Semantic Video Motion Transfer Using Motion-Textual Inversion

    Manuel Kansy, Jacek Naruniec, Christopher Schroers, Markus H. Groß, Romann M. Weber

    ACM SIGGRAPH Conference Papers (SIGGRAPH) · 2025

    The method, called motion-textual inversion, leverages the observation that image-to-video models extract appearance mainly from the (latent) image input, while the text/image embedding injected via cross-attention predominantly controls motion, and represents motion using text/image embedding tokens.

    12
  • Kernel-Based Frame Interpolation for Spatio-Temporally Adaptive Rendering

    Karlis Martins Briedis, Abdelaziz Djelouah, Raphaël Ortiz, Mark Meyer, Markus H. Groß, Christopher Schroers

    Special Interest Group on Computer Graphics and Interactive Techniques Conference Conference Proceedings · 2023

    An adaptive strategy that allows predicting full or partial keyframes that should be rendered with color samples solely based on the auxiliary features of a shot and allows rendering significantly fewer color pixels as compared to a fixed-step scheme when wanting to maintain a certain quality.

    12
  • Learning Dynamic 3D Geometry and Texture for Video Face Swapping

    C. Otto, Jacek Naruniec, Leonhard Helminger, Thomas Etterlin, Graziana Mignone, Prashanth Chandran, Gaspard Zoss, Christopher Schroers, +4 more

    Computer Graphics Forum · 2022

    By leveraging the learned 3D geometry and texture, this method achieves face swapping with higher quality than when using off‐the‐shelf monocular 3D face reconstruction, and overall lower FID score than state‐of-the‐art 2D methods.

    11
  • A Variational Taxonomy for Surface Reconstruction from Oriented Points

    Christopher Schroers, Simon Setzer, Joachim Weickert

    Computer Graphics Forum · 2014

    11
  • Physically inspired depth-from-defocus

    Nico Persch, Christopher Schroers, Simon Setzer, Joachim Weickert

    Image and Vision Computing · 2016

    A forward operator that preserves essential physical properties such as a maximumminimum principle for the intensity values is designed, which allows us to approximate the thin-lens camera model in a better way than previous approaches.

    10
  • Introducing More Physics into Variational Depth–from–Defocus

    Nico Persch, Christopher Schroers, Simon Setzer, Joachim Weickert

    Lecture notes in computer science · 2014

    This work presents a novel forward operator that approximates the thin–lens camera model from physics better than previous ones used for this task, since it preserves the maximum–minimum principle w.r.t. the unknown image intensities.

    8
  • Controllable Tracking-Based Video Frame Interpolation

    Karlis Martins Briedis, Abdelaziz Djelouah, Raphaël Ortiz, Markus H. Groß, Christopher Schroers

    ACM SIGGRAPH Conference Papers (SIGGRAPH) · 2025

    This work introduces a tracking-based video frame interpolation method that utilizes sparse point tracks, first estimated and interpolated with existing point tracking methods and then optionally refined by the user, and proposes a mechanism for controlling the levels of hallucination in interpolated frames through inference-time model weight adaptation.

    7
  • Multiview Depth Parameterisation with Second Order Regularisation

    Christopher Schroers, David Hafner, Joachim Weickert

    Lecture notes in computer science · 2015

    This paper investigates several parameterisations of the unknown depth and reveals that an inverse depth parameterisation is generally preferable, and points out its benefits w.r.t. the data and the smoothness term.

    7
  • A Generative Model for Digital Camera Noise Synthesis

    Mingyang Song, Yang Zhang, Tunç Ozan Aydın, Elham Amin Mansour, Christopher Schroers

    arXiv · 2023

    This work proposes an effective generative model which utilizes clean features as guidance followed by noise injections into the network and shows that the proposed approach outperforms existing methods for synthesizing camera noise.

    6
  • Kernel Aware Resampler

    Michael Bernasconi, Abdelaziz Djelouah, Farnood Salehi, Markus H. Groß, Christopher Schroers

    IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings · 2023

    5
  • Deep Video Color Propagation

    Simone Schaub-Meyer, Victor Cornillère, Abdelaziz Djelouah, Christopher Schroers, Markus H. Groß

    arXiv · 2018

    5
  • A Dense Pipeline for 3D Reconstruction from Image Sequences

    Timm Schneevoigt, Christopher Schroers, Joachim Weickert

    Lecture notes in computer science · 2014

    A novel pipeline for 3D reconstruction from image sequences that solely relies on dense methods, which yields accurate camera poses as well as 3D reconstructions and is an interesting alternative to sparse approaches.

    5
  • CLIP-Fusion: A Spatio-Temporal Quality Metric for Frame Interpolation

    Göksel Mert Çökmez, Yang Zhang, Christopher Schroers, Tunç Ozan Aydın

    IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) · 2025

    4
  • ReBaIR: Reference-Based Image Restoration

    Michael Bernasconi, Abdelaziz Djelouah, Yang Zhang, Markus H. Groß, Christopher Schroers

    IEEE/CVF International Conference on Computer Vision Workshops (ICCVW) · 2025

    4
  • Microdosing: Knowledge Distillation for GAN Based Compression

    Leonhard Helminger, Roberto Azevedo, Abdelaziz Djelouah, Markus H. Groß, Christopher Schroers

    British Machine Vision Conference (BMVC) · 2021

    This paper demonstrates how to leverage knowledge distillation to obtain equally capable image decoders at a fraction of the original number of parameters and shows how to transfer the obtained benefits into the setting of video compression.

    4
  • Large-Scale Multi-Site Subjective Assessment on Image Banding Artifacts

    Yuanyi Xue, Roberto Azevedo, Xuchang Huangfu, Yang Zhang, Christopher Schroers, Scott Labrozzi

    International Conference on Quality of Multimedia Experience (QoMEX) · 2023

    3
  • Cross Anisotropic Cost Volume Filtering for Segmentation

    Vladislav Kramarev, Oliver Demetz, Christopher Schroers, Joachim Weickert

    Lecture notes in computer science · 2013

    This paper presents a substantially improved cost computation scheme which incorporates texture descriptors, as well as an automatic feature selection strategy which leads to a high-dimensional feature space, from which the label costs are extracted using a support vector machine.

    3
  • StableDPT: Temporal Stable Monocular Video Depth Estimation

    Ivan Sobko, Hayko Riemenschneider, Markus H. Groß, Christopher Schroers

    arXiv · 2026

    This work proposes a novel approach that adapts any state-of-the-art image-based image-based (depth) estimation model for video processing by integrating a new temporal module - trainable on a single GPU in a few days.

    2
  • Spatiotemporal Diffusion Priors for Extreme Video Compression

    Lucas Relic, André Emmenegger, Roberto Azevedo, Yang Zhang, Markus H. Groß, Christopher Schroers

    Picture Coding Symposium · 2025

    2
  • Leveraging Diffusion Models for Stylization Using Multiple Style Images

    Dan Ruta, Abdelaziz Djelouah, Raphaël Ortiz, Christopher Schroers

    IEEE/CVF International Conference on Computer Vision Workshops (ICCVW) · 2025

    This work designs a method that leverages both image prompt adapters and statistical alignment of the features during the denoising process, and achieves state-of-the-art results for stylization.

    2
  • Revitalizing Legacy Video Content: Deinterlacing with Bidirectional Information Propagation

    Gao, Zhaowei, Mingyang Song, Christopher Schroers, Yang Zhang

    arXiv · 2023

    A deep-learning-based method for deinterlacing animated and live-action content using a Flow-guided Refinement Block which performs feature refinement including alignment, fusion, and rectification and can process multiple fields simultaneously, reducing per-frame processing time, and potentially enabling real-time processing.

    2
  • LDIP: Long Distance Information Propagation for Video Super-Resolution

    Michael Bernasconi, Abdelaziz Djelouah, Yang Zhang, Markus H. Groß, Christopher Schroers

    IEEE/CVF International Conference on Computer Vision (ICCV) · 2025

    1
  • BetterDepth: Plug-and-Play Diffusion Refiner for Zero-Shot Monocular Depth Estimation

    Xiang Zhang, Bingxin Ke, Hayko Riemenschneider, Nando Metzger, Anton Obukhov, Markus H. Groß, Konrad Schindler, Christopher Schroers

    neural information processing systems · 2024

    1
  • Efficient Video Encoder Autotuning via Offline Bayesian Optimization and Supervised Learning

    Roberto Azevedo, Yuanyi Xue, Xuewei Meng, Wenhao Zhang, Scott Labrozzi, Christopher Schroers

    IEEE International Workshop on Multimedia Signal Processing (MMSP) · 2024

    1
  • Self-Supervised Effective Resolution Estimation with Adversarial Augmentations

    Manuel Kansy, Julian Balletshofer, Jacek Naruniec, Christopher Schroers, Graziana Mignone, Markus H. Groß, Romann M. Weber

    IEEE/CVF Winter Conference on Applications of Computer Vision Workshops (WACVW) · 2023

    1
  • Blind Image Restoration with Flow Based Priors

    Leonhard Helminger, Michael Bernasconi, Abdelaziz Djelouah, Markus H. Groß, Christopher Schroers

    arXiv · 2020

    1
  • Variational surface reconstruction

    Christopher Schroers

    Publications of the UdS (Saarland University) · 2016

    A novel pipeline for 3D reconstruction from image sequences that solely relies on dense ideas and enables us to derive novel approaches to surface reconstruction from oriented points that are fairly simple and offer state-of-the-art performance.

    1
  • 2D Gaussian Splatting for Bézier Spline Line Art Vectorization

    Tianhao Chen, Clara Fernandez-Labrador, Marteinn Örn Óskarsson, Chuck Tappan, Olga Sorkine‐Hornung, Markus H. Groß, Christopher Schroers, Abdelaziz Djelouah

    ACM SIGGRAPH Conference Papers (SIGGRAPH) · 2026

    This paper shows that it is possible to go beyond heuristics to extract a meaningful set of strokes from a raster image, and achieves state-of-the-art results for image reconstruction, while being fast and producing strokes of high quality.

    –
  • Efficient All-Pairs Correlation Volume Sampling for Optical Flow Estimation

    Karlis Martins Briedis, Markus H. Groß, Christopher Schroers

    arXiv · 2025

    –
  • Training a Deep Remastering Model

    Abdelaziz Djelouah, Andrew J. Wahlquist, Sally Hattori, Christopher Schroers

    Special Interest Group on Computer Graphics and Interactive Techniques Conference Talks · 2022

    This work presents a deep learning solution to bring the NTSC version to the new scan quality levels, which would be otherwise impossible with existing tools.

    –
  • Light Field Synthesis Using Inexpensive Surveillance Camera Systems

    Frederike Dümbgen, Christopher Schroers, Kenny Mitchell

    Proceedings - International Conference on Image Processing · 2019

    –

Publication data from OpenAlex, with missing venues and authors filled in from Crossref; citation counts are the higher of OpenAlex and Semantic Scholar, last synced 2026-10-15. One-sentence summaries under some papers are written by Semantic Scholar’s model. Citation counts may be lower than on Google Scholar, which indexes more sources.

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