NTIRE 2026 3D Restoration and Reconstruction in Real-world Adverse Conditions: RealX3D Challenge Results

TL;DR

This paper reviews the NTIRE 2026 3D Reconstruction Challenge focusing on robust methods for adverse real-world conditions like low-light and smoke, highlighting significant progress and shared design principles among top solutions.

Contribution

It provides a comprehensive overview of the challenge, evaluates submitted methods against baselines, and offers insights into effective strategies for 3D reconstruction in adverse environments.

Findings

Top methods show significant improvement over baselines.

Shared design principles are common among successful approaches.

The challenge advances understanding of 3D reconstruction under adverse conditions.

Abstract

This paper presents a comprehensive review of the NTIRE 2026 3D Restoration and Reconstruction (3DRR) Challenge, detailing the proposed methods and results. The challenge seeks to identify robust reconstruction pipelines that are robust under real-world adverse conditions, specifically extreme low-light and smoke-degraded environments, as captured by our RealX3D benchmark. A total of 279 participants registered for the competition, of whom 33 teams submitted valid results. We thoroughly evaluate the submitted approaches against state-of-the-art baselines, revealing significant progress in 3D reconstruction under adverse conditions. Our analysis highlights shared design principles among top-performing methods and provides insights into effective strategies for handling 3D scene degradation.