Nicolas Julien Roussel

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Related publications (4)

Radiance Surfaces: Optimizing Surface Representations with a 5D Radiance Field Loss

Nicolas Julien Roussel, Merlin Eléazar Nimier-David, Wenzel Alban Jakob, Tizian Lucien Zeltner

We present a fast and simple technique to convert images into a radiance surface-based scene representation. Building on existing radiance volume reconstruction algorithms, we introduce a subtle yet impactful modification of the loss function requiring cha ...

ACM2025

Projective Sampling for Differentiable Rendering of Geometry

Nicolas Julien Roussel, Wenzel Alban Jakob

Discontinuous visibility changes at object boundaries remain a persistent source of difficulty in the area of differentiable rendering. Left untreated, they bias computed gradients so severely that even basic optimization tasks fail.|Prior path-space metho ...

2023

Dr.Jit: A Just-In-Time Compiler for Differentiable Rendering

Sébastien Nicolas Speierer, Nicolas Julien Roussel, Wenzel Alban Jakob, Delio Aleardo Vicini

Dr.Jit is a new just-in-time compiler for physically based rendering and its derivative. Dr.Jit expedites research on these topics in two ways: first, it traces high-level simulation code (e.g., written in Python) and aggressively simplifies and specialize ...

2022

Towards BCI-Based Interfaces for Augmented Reality: Feasibility, Design and Evaluation

Nicolas Julien Roussel, Camille Marie Jeunet

Brain-Computer Interfaces (BCIs) enable users to interact with computers without any dedicated movement, bringing new hands-free interaction paradigms. In this paper we study the combination of BCI and Augmented Reality (AR). We first tested the feasibilit ...

2020

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