Core Concepts
HDR videos require tone-mapping for SDR displays, impacting visual quality.
Abstract
The article discusses the impact of tone-mapping on the visual quality of streaming HDR videos. It introduces the LIVE-TMHDR database, containing 15,000 tone-mapped sequences from 40 unique HDR source contents. The study analyzes subjective perception and objective prediction of video qualities, comparing various tone-mapping operators. Different TMOs are explored, along with spatial parameters and temporal modes to vary distortions. The study also delves into lossy compression effects on video quality.
Stats
"The videos in the database were labeled with more than 750,000 subjective quality annotations."
"The database contains 40 source HDR videos and 15,000 tone-mapped sequences."
"Two OETFs have been included in the BT.2100 standard: PQ and HLG."
"A key reason for limited streaming of HDR content is the scarcity of true HDR displays supporting at least 1000 nits."
"Eilertsen et al. applied eleven TMOs to six source HDR videos creating a database of 66 videos."
Quotes
"High Dynamic Range (HDR) videos are expected to grow into the dominant video modality of the future."
"We envision that the new LIVE Tone-Mapped HDR (LIVE-TMHDR) database will enable significant progress on HDR video tone mapping and quality assessment in the future."
"The rest of the paper is organized as follows: Section II provides background regarding subjective quality assessment..."