Search Results for author: Majed El Helou

Found 18 papers, 16 papers with code

VerA: Versatile Anonymization Fit for Clinical Facial Images

no code implementations4 Dec 2023 Majed El Helou, Doruk Cetin, Petar Stamenkovic, Fabio Zund

VerA outperforms or is on par with state-of-the-art methods in de-identification and photorealism for regular images.

De-identification

Fuzzy-Conditioned Diffusion and Diffusion Projection Attention Applied to Facial Image Correction

1 code implementation26 Jun 2023 Majed El Helou

Additionally, we propose an application to facial image correction, where we combine our fuzzy-conditioned diffusion with diffusion-derived attention maps.

Image Generation

PoGaIN: Poisson-Gaussian Image Noise Modeling from Paired Samples

1 code implementation10 Oct 2022 Nicolas Bähler, Majed El Helou, Étienne Objois, Kaan Okumuş, Sabine Süsstrunk

To fill this gap, we derive a novel, cumulant-based, approach for Poisson-Gaussian noise modeling from paired image samples.

DSR: Towards Drone Image Super-Resolution

1 code implementation25 Aug 2022 Xiaoyu Lin, Baran Ozaydin, Vidit Vidit, Majed El Helou, Sabine Süsstrunk

It would enable drones to fly higher covering larger fields of view, while maintaining a high image quality.

Image Super-Resolution

Image Denoising with Control over Deep Network Hallucination

1 code implementation2 Jan 2022 Qiyuan Liang, Florian Cassayre, Haley Owsianko, Majed El Helou, Sabine Süsstrunk

In this framework, we exploit the outputs of a deep denoising network alongside an image convolved with a reliable filter.

Hallucination Image Denoising

Fidelity Estimation Improves Noisy-Image Classification With Pretrained Networks

1 code implementation1 Jun 2021 Xiaoyu Lin, Deblina Bhattacharjee, Majed El Helou, Sabine Süsstrunk

Furthermore, as proof of concept, we show that when using our oracle fidelity map we even outperform the fully retrained methods, whether trained on noisy or restored images.

Classification Image Classification

Deep Gaussian Denoiser Epistemic Uncertainty and Decoupled Dual-Attention Fusion

1 code implementation12 Jan 2021 Xiaoqi Ma, Xiaoyu Lin, Majed El Helou, Sabine Süsstrunk

While novel denoising networks were designed for real images coming from different distributions, or for specific applications, comparatively small improvement was achieved on Gaussian denoising.

Denoising

BIGPrior: Towards Decoupling Learned Prior Hallucination and Data Fidelity in Image Restoration

2 code implementations3 Nov 2020 Majed El Helou, Sabine Süsstrunk

Our method, though partly reliant on the quality of the generative network inversion, is competitive with state-of-the-art supervised and task-specific restoration methods.

Colorization Denoising +4

VIDIT: Virtual Image Dataset for Illumination Transfer

2 code implementations11 May 2020 Majed El Helou, Ruofan Zhou, Johan Barthas, Sabine Süsstrunk

Deep image relighting is gaining more interest lately, as it allows photo enhancement through illumination-specific retouching without human effort.

Domain Adaptation Image Relighting

Divergence-Based Adaptive Extreme Video Completion

no code implementations14 Apr 2020 Majed El Helou, Ruofan Zhou, Frank Schmutz, Fabrice Guibert, Sabine Süsstrunk

Extreme image or video completion, where, for instance, we only retain 1% of pixels in random locations, allows for very cheap sampling in terms of the required pre-processing.

Motion Estimation

W2S: Microscopy Data with Joint Denoising and Super-Resolution for Widefield to SIM Mapping

2 code implementations12 Mar 2020 Ruofan Zhou, Majed El Helou, Daniel Sage, Thierry Laroche, Arne Seitz, Sabine Süsstrunk

To study JDSR on microscopy data, we propose such a novel JDSR dataset, Widefield2SIM (W2S), acquired using a conventional fluorescence widefield and SIM imaging.

Denoising Super-Resolution

Drone Shadow Tracking

1 code implementation20 May 2019 Xiaoyan Zou, Ruofan Zhou, Majed El Helou, Sabine Süsstrunk

In this paper, we incorporate knowledge of the shadow's physical properties, in the form of shadow detection masks, into a correlation-based tracking algorithm.

Shadow Detection Shadow Removal

Fourier-Domain Optimization for Image Processing

1 code implementation11 Sep 2018 Majed El Helou, Frederike Dümbgen, Radhakrishna Achanta, Sabine Süsstrunk

Image optimization problems encompass many applications such as spectral fusion, deblurring, deconvolution, dehazing, matting, reflection removal and image interpolation, among others.

Deblurring Image Matting +1

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