NTIRE 2025 Challenge on Efficient Burst HDR and Restoration: Datasets, Methods, and Results
This addresses the problem of efficient multi-frame HDR and restoration for researchers and practitioners, but is incremental as it builds on existing challenge frameworks.
The paper reviewed the NTIRE 2025 challenge on efficient burst HDR and restoration, where participants developed methods to fuse noisy, misaligned RAW frames under strict computational constraints (under 30M parameters and 4.0T FLOPs), with the top approach achieving a PSNR of 43.22 dB.
This paper reviews the NTIRE 2025 Efficient Burst HDR and Restoration Challenge, which aims to advance efficient multi-frame high dynamic range (HDR) and restoration techniques. The challenge is based on a novel RAW multi-frame fusion dataset, comprising nine noisy and misaligned RAW frames with various exposure levels per scene. Participants were tasked with developing solutions capable of effectively fusing these frames while adhering to strict efficiency constraints: fewer than 30 million model parameters and a computational budget under 4.0 trillion FLOPs. A total of 217 participants registered, with six teams finally submitting valid solutions. The top-performing approach achieved a PSNR of 43.22 dB, showcasing the potential of novel methods in this domain. This paper provides a comprehensive overview of the challenge, compares the proposed solutions, and serves as a valuable reference for researchers and practitioners in efficient burst HDR and restoration.