Search Results for author: Rafal K. Mantiuk

Found 14 papers, 7 papers with code

Transformation Consistency Regularization – A Semi-Supervised Paradigm for Image-to-Image Translation

no code implementations ECCV 2020 Aamir Mustafa, Rafal K. Mantiuk

Scarcity of labeled data has motivated the development of semi-supervised learning methods, which learn from large portions of unlabeled data alongside a few labeled samples.

Colorization Denoising +4

ColorVideoVDP: A visual difference predictor for image, video and display distortions

no code implementations21 Jan 2024 Rafal K. Mantiuk, Param Hanji, Maliha Ashraf, Yuta Asano, ALEXANDRE CHAPIRO

ColorVideoVDP is a video and image quality metric that models spatial and temporal aspects of vision, for both luminance and color.

Video Compression

Perceptual Assessment and Optimization of High Dynamic Range Image Rendering

1 code implementation19 Oct 2023 Peibei Cao, Rafal K. Mantiuk, Kede Ma

Existing quality models are mostly designed for low dynamic range (LDR) images, and do not align well with human perception of HDR image quality.

Image Quality Assessment Novel View Synthesis

HDR-VDP-3: A multi-metric for predicting image differences, quality and contrast distortions in high dynamic range and regular content

no code implementations26 Apr 2023 Rafal K. Mantiuk, Dounia Hammou, Param Hanji

High-Dynamic-Range Visual-Difference-Predictor version 3, or HDR-VDP-3, is a visual metric that can fulfill several tasks, such as full-reference image/video quality assessment, prediction of visual differences between a pair of images, or prediction of contrast distortions.

Position Video Quality Assessment

Distilling Style from Image Pairs for Global Forward and Inverse Tone Mapping

1 code implementation30 Sep 2022 Aamir Mustafa, Param Hanji, Rafal K. Mantiuk

Many image enhancement or editing operations, such as forward and inverse tone mapping or color grading, do not have a unique solution, but instead a range of solutions, each representing a different style.

Image Enhancement inverse tone mapping +2

How to cheat with metrics in single-image HDR reconstruction

1 code implementation19 Aug 2021 Gabriel Eilertsen, Saghi Hajisharif, Param Hanji, Apostolia Tsirikoglou, Rafal K. Mantiuk, Jonas Unger

Here, we reproduce a typical evaluation using existing as well as simulated SI-HDR methods to demonstrate how different aspects of the problem affect objective quality metrics.

HDR Reconstruction

Training a Task-Specific Image Reconstruction Loss

no code implementations26 Mar 2021 Aamir Mustafa, Aliaksei Mikhailiuk, Dan Andrei Iliescu, Varun Babbar, Rafal K. Mantiuk

The choice of a loss function is an important factor when training neural networks for image restoration problems, such as single image super resolution.

Denoising Image Reconstruction +2

Consolidated Dataset and Metrics for High-Dynamic-Range Image Quality

no code implementations19 Dec 2020 Aliaksei Mikhailiuk, Maria Perez-Ortiz, Dingcheng Yue, Wilson Suen, Rafal K. Mantiuk

As the existing HDR quality datasets are limited in size, we created a Unified Photometric Image Quality dataset (UPIQ) with over 4, 000 images by realigning and merging existing HDR and standard-dynamic-range (SDR) datasets.

Image Compression Vocal Bursts Intensity Prediction

Noise-Aware Merging of High Dynamic Range Image Stacks without Camera Calibration

1 code implementation16 Sep 2020 Param Hanji, Fangcheng Zhong, Rafal K. Mantiuk

A near-optimal reconstruction of the radiance of a High Dynamic Range scene from an exposure stack can be obtained by modeling the camera noise distribution.

Camera Calibration

Transformation Consistency Regularization- A Semi-Supervised Paradigm for Image-to-Image Translation

1 code implementation15 Jul 2020 Aamir Mustafa, Rafal K. Mantiuk

Scarcity of labeled data has motivated the development of semi-supervised learning methods, which learn from large portions of unlabeled data alongside a few labeled samples.

Colorization Denoising +4

Hybrid-MST: A Hybrid Active Sampling Strategy for Pairwise Preference Aggregation

1 code implementation NeurIPS 2018 Jing Li, Rafal K. Mantiuk, Junle Wang, Suiyi Ling, Patrick Le Callet

In this paper we present a hybrid active sampling strategy for pairwise preference aggregation, which aims at recovering the underlying rating of the test candidates from sparse and noisy pairwise labelling.

Bayesian Optimization Computational Efficiency

A practical guide and software for analysing pairwise comparison experiments

2 code implementations11 Dec 2017 Maria Perez-Ortiz, Rafal K. Mantiuk

Most popular strategies to capture subjective judgments from humans involve the construction of a unidimensional relative measurement scale, representing order preferences or judgments about a set of objects or conditions.

Image Quality Assessment

High Dynamic Range Imaging Technology

no code implementations30 Nov 2017 Alessandro Artusi, Thomas Richter, Touradj Ebrahimi, Rafal K. Mantiuk

In this lecture note, we describe high dynamic range (HDR) imaging systems; such systems are able to represent luminances of much larger brightness and, typically, also a larger range of colors than conventional standard dynamic range (SDR) imaging systems.

Vocal Bursts Intensity Prediction

Langevin Dynamics with Continuous Tempering for Training Deep Neural Networks

no code implementations NeurIPS 2017 Nanyang Ye, Zhanxing Zhu, Rafal K. Mantiuk

Minimizing non-convex and high-dimensional objective functions is challenging, especially when training modern deep neural networks.

Stochastic Optimization

Cannot find the paper you are looking for? You can Submit a new open access paper.