FGA-NN: Film Grain Analysis Neural Network

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Bibliographic Details
Title: FGA-NN: Film Grain Analysis Neural Network
Authors: Ameur, Zoubida, Lefebvre, Frédéric, De Lagrange, Philippe, Radosavljević, Miloš
Source: 2025 IEEE International Conference on Image Processing (ICIP). :2103-2108
Publication Status: Preprint
Publisher Information: IEEE, 2025.
Publication Year: 2025
Subject Terms: FOS: Computer and information sciences, Computer Vision and Pattern Recognition (cs.CV), Image and Video Processing (eess.IV), FOS: Electrical engineering, electronic engineering, information engineering, Image and Video Processing, Computer Vision and Pattern Recognition
Description: Film grain, once a by-product of analog film, is now present in most cinematographic content for aesthetic reasons. However, when such content is compressed at medium to low bitrates, film grain is lost due to its random nature. To preserve artistic intent while compressing efficiently, film grain is analyzed and modeled before encoding and synthesized after decoding. This paper introduces FGA-NN, the first learning-based film grain analysis method to estimate conventional film grain parameters compatible with conventional synthesis. Quantitative and qualitative results demonstrate FGA-NN's superior balance between analysis accuracy and synthesis complexity, along with its robustness and applicability.
Document Type: Article
DOI: 10.1109/icip55913.2025.11084309
DOI: 10.48550/arxiv.2506.14350
Access URL: http://arxiv.org/abs/2506.14350
Rights: STM Policy #29
CC BY NC SA
Accession Number: edsair.doi.dedup.....dfd2bef09d698c4c9167a96e53db5fab
Database: OpenAIRE
Description
Abstract:Film grain, once a by-product of analog film, is now present in most cinematographic content for aesthetic reasons. However, when such content is compressed at medium to low bitrates, film grain is lost due to its random nature. To preserve artistic intent while compressing efficiently, film grain is analyzed and modeled before encoding and synthesized after decoding. This paper introduces FGA-NN, the first learning-based film grain analysis method to estimate conventional film grain parameters compatible with conventional synthesis. Quantitative and qualitative results demonstrate FGA-NN's superior balance between analysis accuracy and synthesis complexity, along with its robustness and applicability.
DOI:10.1109/icip55913.2025.11084309