Search Results for author: Leonardo Galteri

Found 8 papers, 5 papers with code

Quality-Aware Image-Text Alignment for Real-World Image Quality Assessment

1 code implementation17 Mar 2024 Lorenzo Agnolucci, Leonardo Galteri, Marco Bertini

In particular, we introduce a quality-aware image-text alignment strategy to make CLIP generate representations that correlate with the inherent quality of the images.

Blind Image Quality Assessment No-Reference Image Quality Assessment +1

Perceptual Quality Improvement in Videoconferencing using Keyframes-based GAN

1 code implementation7 Nov 2023 Lorenzo Agnolucci, Leonardo Galteri, Marco Bertini, Alberto del Bimbo

Given that, in this context, the speaker is typically in front of the camera and remains the same for the entire duration of the transmission, we can maintain a set of reference keyframes of the person from the higher-quality I-frames that are transmitted within the video stream and exploit them to guide the visual quality improvement; a novel aspect of this approach is the update policy that maintains and updates a compact and effective set of reference keyframes.

Video Compression

Reference-based Restoration of Digitized Analog Videotapes

2 code implementations20 Oct 2023 Lorenzo Agnolucci, Leonardo Galteri, Marco Bertini, Alberto del Bimbo

We design a transformer-based Swin-UNet network that exploits both neighboring and reference frames via our Multi-Reference Spatial Feature Fusion (MRSFF) blocks.

Analog Video Restoration Artifact Detection

ARNIQA: Learning Distortion Manifold for Image Quality Assessment

1 code implementation20 Oct 2023 Lorenzo Agnolucci, Leonardo Galteri, Marco Bertini, Alberto del Bimbo

In this work, we propose a self-supervised approach named ARNIQA (leArning distoRtion maNifold for Image Quality Assessment) for modeling the image distortion manifold to obtain quality representations in an intrinsic manner.

Blind Image Quality Assessment No-Reference Image Quality Assessment +1

Robust pedestrian detection in thermal imagery using synthesized images

no code implementations3 Feb 2021 My Kieu, Lorenzo Berlincioni, Leonardo Galteri, Marco Bertini, Andrew D. Bagdanov, Alberto del Bimbo

Experimental results demonstrate the effectiveness of our approach: using less than 50\% of available real thermal training data, and relying on synthesized data generated by our model in the domain adaptation phase, our detector achieves state-of-the-art results on the KAIST Multispectral Pedestrian Detection Benchmark; even if more real thermal data is available adding GAN generated images to the training data results in improved performance, thus showing that these images act as an effective form of data augmentation.

Data Augmentation Domain Adaptation +2

Semantic Road Layout Understanding by Generative Adversarial Inpainting

no code implementations29 May 2018 Lorenzo Berlincioni, Federico Becattini, Leonardo Galteri, Lorenzo Seidenari, Alberto del Bimbo

Autonomous driving is becoming a reality, yet vehicles still need to rely on complex sensor fusion to understand the scene they act in.

Autonomous Driving Segmentation +2

Deep Generative Adversarial Compression Artifact Removal

no code implementations ICCV 2017 Leonardo Galteri, Lorenzo Seidenari, Marco Bertini, Alberto del Bimbo

Moreover we show that our approach can be used as a pre-processing step for object detection in case images are degraded by compression to a point that state-of-the art detectors fail.

object-detection Object Detection +1

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