Book ChapterDOI
Dual Modulation for LED-Backlit HDR Displays
Manish Narwaria,M. P. Da Silva,P. Le Callet +2 more
- pp 371-388
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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.read more
Citations
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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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Proceedings ArticleDOI
Two-step local dimming for image quality preservation in LCD displays
TL;DR: A new approach to local dimming for liquid crystal display (LCD) devices that improves the image quality of the processed images by up to 8 dB in terms of PSNR while consuming less power, when compared to benchmark methods.
Proceedings ArticleDOI
Adaptive local backlight dimming algorithm based on local histogram and image characteristics
TL;DR: A new backlight dimming algorithm that exploits the characteristics of the target image, such as the local histograms and the average pixel intensity of each backlight segment, to reduce the power consumption of the backlight and enhance image quality.