8-3: Invited Paper : Light Steering Projection Systems and Attributes for HDR Displays

Handle URI:
http://hdl.handle.net/10754/626187
Title:
8-3: Invited Paper : Light Steering Projection Systems and Attributes for HDR Displays
Authors:
Damberg, Gerwin; Boitard, Ronan; Ballestad, Anders; Heidrich, Wolfgang ( 0000-0002-4227-8508 )
Abstract:
New light steering projectors in cinema form images by moving light away from dark regions into bright areas of an image. In these systems, the peak luminance of small features can far exceed full screen white luminance. In traditional projectors where light is filtered or blocked in order to give shades of gray (or colors), the peak luminance is fixed. The luminance of chromatic features benefit in the same way as white features, and chromatic image details can be reproduced at high brightness leading to a much wider overall color gamut coverage than previously possible. Projectors of this capability are desired by the creative community to aid in and enhance storytelling. Furthermore, reduced light source power requirements of light steering projectors provide additional economic and environmental benefits. While the dependency of peak luminance level on (bright) image feature size is new in the digital cinema space, display technologies with identical characteristics such as OLED, LED LCD and Plasma TVs are well established in the home. Similarly, direct view LED walls are popular in events, advertising and architectural markets. To enable consistent color reproduction across devices in today’s content production pipelines, models that describe modern projectors and display attributes need to evolve together with HDR standards and available metadata. This paper is a first step towards rethinking legacy display descriptors such as contrast, peak luminance and color primaries in light of new display technology. We first summarize recent progress in the field of light steering projectors in cinema and then, based on new projector and existing display characteristics propose the inclusion of two simple display attributes: Maximum Average Luminance and Peak (Color) Primary Luminance. We show that the proposed attributes allow a better prediction of content reproducibility on HDR displays. To validate this assertion, we test professional content on a commercial HDR television system and show that the proposed attributes better predict if a pixel value lies inside the capabilities of a display or not.
KAUST Department:
Visual Computing Center (VCC)
Citation:
Damberg G, Boitard R, Ballestad A, Heidrich W (2017) 8-3: Invited Paper : Light Steering Projection Systems and Attributes for HDR Displays. SID Symposium Digest of Technical Papers 48: 87–90. Available: http://dx.doi.org/10.1002/sdtp.11574.
Publisher:
Wiley-Blackwell
Journal:
SID Symposium Digest of Technical Papers
Issue Date:
2-Jun-2017
DOI:
10.1002/sdtp.11574
Type:
Article
ISSN:
0097-966X
Sponsors:
We would like to thank Twentieth Century Fox for making available the Deadpool and Life of Pi frames.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/sdtp.11574/abstract; http://vccimaging.org/Publications/Damberg2017LightSteering/Damberg2017LightSteering.pdf
Appears in Collections:
Articles; Visual Computing Center (VCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorDamberg, Gerwinen
dc.contributor.authorBoitard, Ronanen
dc.contributor.authorBallestad, Andersen
dc.contributor.authorHeidrich, Wolfgangen
dc.date.accessioned2017-11-21T13:33:17Z-
dc.date.available2017-11-21T13:33:17Z-
dc.date.issued2017-06-02en
dc.identifier.citationDamberg G, Boitard R, Ballestad A, Heidrich W (2017) 8-3: Invited Paper : Light Steering Projection Systems and Attributes for HDR Displays. SID Symposium Digest of Technical Papers 48: 87–90. Available: http://dx.doi.org/10.1002/sdtp.11574.en
dc.identifier.issn0097-966Xen
dc.identifier.doi10.1002/sdtp.11574en
dc.identifier.urihttp://hdl.handle.net/10754/626187-
dc.description.abstractNew light steering projectors in cinema form images by moving light away from dark regions into bright areas of an image. In these systems, the peak luminance of small features can far exceed full screen white luminance. In traditional projectors where light is filtered or blocked in order to give shades of gray (or colors), the peak luminance is fixed. The luminance of chromatic features benefit in the same way as white features, and chromatic image details can be reproduced at high brightness leading to a much wider overall color gamut coverage than previously possible. Projectors of this capability are desired by the creative community to aid in and enhance storytelling. Furthermore, reduced light source power requirements of light steering projectors provide additional economic and environmental benefits. While the dependency of peak luminance level on (bright) image feature size is new in the digital cinema space, display technologies with identical characteristics such as OLED, LED LCD and Plasma TVs are well established in the home. Similarly, direct view LED walls are popular in events, advertising and architectural markets. To enable consistent color reproduction across devices in today’s content production pipelines, models that describe modern projectors and display attributes need to evolve together with HDR standards and available metadata. This paper is a first step towards rethinking legacy display descriptors such as contrast, peak luminance and color primaries in light of new display technology. We first summarize recent progress in the field of light steering projectors in cinema and then, based on new projector and existing display characteristics propose the inclusion of two simple display attributes: Maximum Average Luminance and Peak (Color) Primary Luminance. We show that the proposed attributes allow a better prediction of content reproducibility on HDR displays. To validate this assertion, we test professional content on a commercial HDR television system and show that the proposed attributes better predict if a pixel value lies inside the capabilities of a display or not.en
dc.description.sponsorshipWe would like to thank Twentieth Century Fox for making available the Deadpool and Life of Pi frames.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/sdtp.11574/abstracten
dc.relation.urlhttp://vccimaging.org/Publications/Damberg2017LightSteering/Damberg2017LightSteering.pdf-
dc.rightsThis is the peer reviewed version of the following article: 8-3: Invited Paper : Light Steering Projection Systems and Attributes for HDR Displays, which has been published in final form at http://doi.org/10.1002/sdtp.11574. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.en
dc.title8-3: Invited Paper : Light Steering Projection Systems and Attributes for HDR Displaysen
dc.typeArticleen
dc.contributor.departmentVisual Computing Center (VCC)en
dc.identifier.journalSID Symposium Digest of Technical Papersen
dc.eprint.versionPost-printen
dc.contributor.institutionMTT Innovation Inc.; Vancouver Canadaen
dc.contributor.institutionDepartment of Computer Science; University of British Columbia; Vancouver Canadaen
kaust.authorHeidrich, Wolfgangen
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