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Book ChapterDOI

Dual Modulation for LED-Backlit HDR Displays

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TLDR
This chapter outlines a new dual modulation algorithm for the rendering of HDR content and discusses practical lessons that can be helpful toward therender of more accurate and visually appealing HDR content.
Abstract
High dynamic range (HDR) and wide color gamut video processing have started to receive significant research attention in recent years, especially in relation to content generation and processing. However, displaying such content is still a challenge, and efforts are required to make their deployment possible at consumer levels. While the emergence of locally backlit displays has helped to achieve higher contrast in the display of traditional low dynamic range videos, their use for displaying HDR videos is nontrivial. This chapter, therefore, aims to first identify a few challenges in this area. It then outlines a new dual modulation algorithm for the rendering of HDR content. It also discusses practical lessons that can be helpful toward the rendering of more accurate and visually appealing HDR content.

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Journal ArticleDOI

Preference of Experience in Image Tone-Mapping: Dataset and Framework for Objective Measures Comparison

TL;DR: A subjective experiment attempting to determine users’ preference with respect to these two types of content in two different viewing scenarios—with and without the HDR reference shows that the absence of the reference can significantly influence the subjects' preferences for the natural images, while no significant impact has been found in the case of the synthetic images.
Journal ArticleDOI

Advances in the metal nanoparticles (MNPs) doped liquid crystals and polymer dispersed liquid crystal (PDLC) composites and their applications - a review

TL;DR: In this paper, a great interest in doping of different types of nanoparticles (NPs) in the opto-electronic display devices including liquid crystal displays and polymer dispersed LCs is discussed.
Proceedings ArticleDOI

A dual modulation algorithm for accurate reproduction of high dynamic range video

TL;DR: This work presents an iterative scaling approach to estimate dual modulated signals to drive the back LED panel and the front LCD screen, which is able to reproduce accurately luminance values stored in HDR files and describes a temporal smoothing mechanism to compute backlight illumination.
Journal ArticleDOI

Deep Controllable Backlight Dimming for HDR Displays

TL;DR: In this paper , a deep learning based local dimming method is proposed for rendering HDR images on dual-panel HDR displays, which uses a convolutional neural network (CNN) to directly predict backlight values, using as input the HDR image that is to be displayed.
Journal ArticleDOI

Deep Controllable Backlight Dimming for HDR Displays

TL;DR: A novel deep learning based local dimming method that uses a Convolutional Neural Network to directly predict backlight values, using as input the HDR image that is to be displayed on dual-panel HDR displays is proposed.
References
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Journal ArticleDOI

Dynamic Backlight Adaptation Based on the Details of Image for Liquid Crystal Displays

TL;DR: Experimental results show that the proposed method achieves low power consumption and little image distortion ratio simultaneously.
Journal ArticleDOI

Optimal local dimming for LC image formation with controllable backlighting

TL;DR: A novel local dimming technique that can achieve the theoretical highest fidelity of intensity reproduction in either l1 or l2 metrics is proposed and Simulation results demonstrate superior performances of the proposed algorithm in terms of visual quality and power consumption.
Journal ArticleDOI

A color local dimming algorithm for liquid crystals displays using color light emitting diode backlight systems

TL;DR: In this article, a color local dimming algorithm is proposed to reduce the image distortion and power consumption of liquid crystal displays (LCDs) by using color light emitting diode (LED) backlights.
Proceedings ArticleDOI

Image dependent energy-constrained local backlight dimming

TL;DR: The first extension introduces error weighting based on human perception of luminance, aiming to improve the perceived image quality, and an adjustable term for power consumption is added to the cost function, allowing flexible power management.
Journal ArticleDOI

Low power active dimming liquid crystal display with high resolution backlight

TL;DR: In this paper, a low power active dimming algorithm for high resolution backlights such as 1-D and 2-D was proposed, which outperformed 0-D dimming with respect to power consumption by 12% on average over 24 KODAK images.
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