Search Results for author: Alessandro Gnutti

Found 8 papers, 2 papers with code

Is JPEG AI going to change image forensics?

1 code implementation4 Dec 2024 Edoardo Daniele Cannas, Sara Mandelli, Nataša Popović, Ayman Alkhateeb, Alessandro Gnutti, Paolo Bestagini, Stefano Tubaro

In this paper, we investigate the counter-forensic effects of the new JPEG AI standard based on neural image compression, focusing on two critical areas: deepfake image detection and image splicing localization.

Face Swapping Image Compression +2

Variable-size Symmetry-based Graph Fourier Transforms for image compression

no code implementations24 Nov 2024 Alessandro Gnutti, Fabrizio Guerrini, Riccardo Leonardi, Antonio Ortega

Modern compression systems use linear transformations in their encoding and decoding processes, with transforms providing compact signal representations.

Image Compression

Bridging Compressed Image Latents and Multimodal Large Language Models

no code implementations29 Jul 2024 Chia-Hao Kao, Cheng Chien, Yu-Jen Tseng, Yi-Hsin Chen, Alessandro Gnutti, Shao-Yuan Lo, Wen-Hsiao Peng, Riccardo Leonardi

This paper presents the first-ever study of adapting compressed image latents to suit the needs of downstream vision tasks that adopt Multimodal Large Language Models (MLLMs).

Image Compression

Transformer-based Learned Image Compression for Joint Decoding and Denoising

no code implementations20 Feb 2024 Yi-Hsin Chen, Kuan-Wei Ho, Shiau-Rung Tsai, Guan-Hsun Lin, Alessandro Gnutti, Wen-Hsiao Peng, Riccardo Leonardi

Instead of training separate decoders for these tasks, we incorporate two add-on modules to adapt a pre-trained image decoder from performing the standard image reconstruction to joint decoding and denoising.

Decoder Denoising +2

LiDAR Depth Map Guided Image Compression Model

no code implementations12 Jan 2024 Alessandro Gnutti, Stefano Della Fiore, Mattia Savardi, Yi-Hsin Chen, Riccardo Leonardi, Wen-Hsiao Peng

In this paper, we introduce a novel direction that harnesses LiDAR depth maps to enhance the compression of the corresponding RGB camera images.

Image Compression Image Restoration +1

CANF-VC: Conditional Augmented Normalizing Flows for Video Compression

1 code implementation12 Jul 2022 Yung-Han Ho, Chih-Peng Chang, Peng-Yu Chen, Alessandro Gnutti, Wen-Hsiao Peng

CANF-VC represents a new attempt that leverages the conditional ANF to learn a video generative model for conditional inter-frame coding.

Video Compression

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