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HDR or High Dynamic Range as Fast As Possible
HDR or High Dynamic Range as Fast As Possible
Published: 2014/05/15
Channel: Techquickie
What exactly is an HDR TV? | HowStuffWorks NOW
What exactly is an HDR TV? | HowStuffWorks NOW
Published: 2016/01/21
Channel: HowStuffWorks
What Is High Dynamic Range? | Netflix
What Is High Dynamic Range? | Netflix
Published: 2016/12/07
Channel: Netflix
Basics of HDR Photography
Basics of HDR Photography
Published: 2011/08/13
Channel: DigitalRev TV
High Dynamic Range (HDR) Explained
High Dynamic Range (HDR) Explained
Published: 2016/05/20
Channel: CanonUSA
Introduction to High Dynamic Range Imaging
Introduction to High Dynamic Range Imaging
Published: 2013/03/18
Channel: doubleconvex
The World in HDR in 4K (ULTRA HD)
The World in HDR in 4K (ULTRA HD)
Published: 2016/11/07
Channel: Jacob + Katie Schwarz
What is HDR and is HDR worth it?
What is HDR and is HDR worth it?
Published: 2017/02/13
Channel: wolfcrow
What is HDR Video?
What is HDR Video?
Published: 2016/05/16
Channel: ProAV TV
High Dynamic Range Workflows | Adobe Creative Cloud
High Dynamic Range Workflows | Adobe Creative Cloud
Published: 2015/09/08
Channel: Adobe Creative Cloud
How to make an HDR image in 2 minutes!
How to make an HDR image in 2 minutes!
Published: 2017/08/22
Channel: Peter McKinnon
LG 4K HDR OLED HIGH DYNAMIC RANGE DEMO
LG 4K HDR OLED HIGH DYNAMIC RANGE DEMO
Published: 2017/12/25
Channel: FUTURE etc
What Is HDR TV and Why Should I Care?
What Is HDR TV and Why Should I Care?
Published: 2015/09/06
Channel: Reviewed
[4K60 HDR] Far Cry 5 PC - Ultra HD, 60fps, High Dynamic Range - The Complete Package?
[4K60 HDR] Far Cry 5 PC - Ultra HD, 60fps, High Dynamic Range - The Complete Package?
Published: 2018/04/09
Channel: DigitalFoundry
HDR Monitor Guide for PC Gaming - Worth Buying? | The Tech Chap
HDR Monitor Guide for PC Gaming - Worth Buying? | The Tech Chap
Published: 2017/09/09
Channel: The Tech Chap
HDR Photography Tutorial!
HDR Photography Tutorial!
Published: 2017/11/20
Channel: Saurav Sinha
HDR Photography - How to Shoot HDR Photos
HDR Photography - How to Shoot HDR Photos
Published: 2015/05/20
Channel: steeletraining
Was ist HDR? - High Dynamic Range erklärt
Was ist HDR? - High Dynamic Range erklärt
Published: 2016/12/19
Channel: GameStar
What is HDR? How useful is it? Explained HDR+ High Dynamic Range?
What is HDR? How useful is it? Explained HDR+ High Dynamic Range?
Published: 2015/11/17
Channel: Technical Guruji
Creating Ultra High Dynamic Range - PLP #99 by Serge Ramelli
Creating Ultra High Dynamic Range - PLP #99 by Serge Ramelli
Published: 2014/02/20
Channel: Serge Ramelli Photography
G-SYNC HDR: You
G-SYNC HDR: You'll never go back to standard display - CES 2017
Published: 2017/01/13
Channel: NVIDIA GeForce
What is a HDR display? - Gary explains
What is a HDR display? - Gary explains
Published: 2017/04/04
Channel: Android Authority
B&H Prospectives: Realistic HDR Photography | Tim Cooper
B&H Prospectives: Realistic HDR Photography | Tim Cooper
Published: 2014/07/22
Channel: B and H
HDR EXPLAINED - Everything You Need to Know About High Dynamic Range for TV
HDR EXPLAINED - Everything You Need to Know About High Dynamic Range for TV's and PC Monitors #HDR
Published: 2017/01/02
Channel: GamerGrade
What is HDR photography | High Dynamic Range photography tutorial in Hindi #11
What is HDR photography | High Dynamic Range photography tutorial in Hindi #11
Published: 2017/11/01
Channel: GMAX STUDIOS
How to create better HDR photos in Photoshop
How to create better HDR photos in Photoshop
Published: 2016/07/30
Channel: Photos In Color
NASA’s new High Dynamic Range Camera Records Rocket Test
NASA’s new High Dynamic Range Camera Records Rocket Test
Published: 2016/08/05
Channel: NASA Video
What is HDR photography explained - High Dynamic Range photo and how to shoot | Photography tips #8
What is HDR photography explained - High Dynamic Range photo and how to shoot | Photography tips #8
Published: 2017/10/31
Channel: GMAX STUDIOS
High Dynamic Range in der Praxis: Dolby Vision, Active HDR, HDR 10
High Dynamic Range in der Praxis: Dolby Vision, Active HDR, HDR 10
Published: 2017/08/04
Channel: digitalfernsehende
7 Benefits of High Dynamic Range | HDR Tutorial (3/7)
7 Benefits of High Dynamic Range | HDR Tutorial (3/7)
Published: 2017/06/12
Channel: Gleb Alexandrov
High Dynamic Range Imaging within Lightroom CC
High Dynamic Range Imaging within Lightroom CC
Published: 2015/04/21
Channel: Adobe Photoshop Lightroom
Gimp: HDR effect or High Dynamic Range effect.
Gimp: HDR effect or High Dynamic Range effect.
Published: 2018/01/12
Channel: gimp workshop
What is HDR Photography and What is High Dynamic Range? - HDR Workshop DVD Episode 1
What is HDR Photography and What is High Dynamic Range? - HDR Workshop DVD Episode 1
Published: 2013/01/17
Channel: SLR Lounge | Photography Tutorials
What is HDR ? High Dynamic Range , HDR Displays Explained in Tamil | Tech Satire
What is HDR ? High Dynamic Range , HDR Displays Explained in Tamil | Tech Satire
Published: 2017/06/30
Channel: Tech Satire
How To Make A Manual HDR Photo | High Dynamic Range Tutorial
How To Make A Manual HDR Photo | High Dynamic Range Tutorial
Published: 2013/03/11
Channel: PHLEARN
How to get HDR High Dynamic Range Mode on Philips 5000 Series 4K HD TV
How to get HDR High Dynamic Range Mode on Philips 5000 Series 4K HD TV
Published: 2017/12/05
Channel: History and Reviews
Canon Rebel HDR Video Tutorial for High Dynamic Range Photography
Canon Rebel HDR Video Tutorial for High Dynamic Range Photography
Published: 2012/11/26
Channel: Kim Seng
Weldroid - Protozorq [Full Album] [High Dynamic Range]
Weldroid - Protozorq [Full Album] [High Dynamic Range]
Published: 2015/03/30
Channel: weldroid
How to Edit a Low Light Photos in Photoshop - High Dynamic Range (HDR) Photography
How to Edit a Low Light Photos in Photoshop - High Dynamic Range (HDR) Photography
Published: 2017/08/09
Channel: PSDESIRE
Canon T2I High Dynamic Range Magic Lantern
Canon T2I High Dynamic Range Magic Lantern
Published: 2013/01/09
Channel: Happyfox Productions
Dolby Vision & HDR (High Dynamic Range) Explained
Dolby Vision & HDR (High Dynamic Range) Explained
Published: 2016/08/25
Channel: LGAustralia
High Dynamic Range photography - quick tips - Canon
High Dynamic Range photography - quick tips - Canon
Published: 2016/03/21
Channel: Canon Europe
High Dynamic Range (HDR) Video Image Processing For Digital Glass
High Dynamic Range (HDR) Video Image Processing For Digital Glass
Published: 2012/09/12
Channel: Raymond Lo
(Bangla)/Hdr mode explained-what is hdr ?High dynamic range?
(Bangla)/Hdr mode explained-what is hdr ?High dynamic range?
Published: 2017/12/18
Channel: Tech KOTHON
SONY A1E | OLED | 4K Ultra HD | High Dynamic Range (HDR) | Smart TV
SONY A1E | OLED | 4K Ultra HD | High Dynamic Range (HDR) | Smart TV
Published: 2017/04/10
Channel: Video And Audio Center
HDR High Dynamic Range photography tutorial - real estate photography application
HDR High Dynamic Range photography tutorial - real estate photography application
Published: 2013/12/18
Channel: Academy of Photography
How to Record High Dynamic Range Video on the Atomos Shogun Flame (Sponsored)
How to Record High Dynamic Range Video on the Atomos Shogun Flame (Sponsored)
Published: 2016/11/28
Channel: Videomaker
HDR (High Dynamic Range) explained with a simple example
HDR (High Dynamic Range) explained with a simple example
Published: 2017/05/28
Channel: IceStudio Online
World
World's first high dynamic range video system
Published: 2011/01/18
Channel: futurityvideo
HDR(High Dynamic Range) Movie Sample Video of Panasonic Camcorders
HDR(High Dynamic Range) Movie Sample Video of Panasonic Camcorders
Published: 2015/01/05
Channel: PanasonicImaging
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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High dynamic range (HDR) is a dynamic range higher than what is considered to be standard dynamic range. The term is often used in discussing display devices, photography, 3D rendering, and sound recording including digital imaging and digital audio production. The term may apply to an analog or digitized signal, or to the means of recording, processing, and reproducing such signals.[1]

Visual[edit]

High-dynamic-range imaging (HDRI) is the compositing and tone-mapping of images to extend the dynamic range beyond the native capability of the capturing device.[2][3]

High-dynamic-range video (HDR video) is greater than standard dynamic range (SDR) video which uses a conventional gamma curve.[4]

High-dynamic-range rendering (HDRR) is the real-time rendering and display of virtual environments using a dynamic range of 65,535:1 or higher (used in computer, gaming, and entertainment technology).[5]

On January 4, 2016, the Ultra HD Alliance announced their certification requirements for a HDR display.[6][7] The HDR display must have either a peak brightness of over 1000 cd/m2 and a black level less than 0.05 cd/m2 (a contrast ratio of at least 20,000:1) or a peak brightness of over 540 cd/m2 and a black level less than 0.0005 cd/m2 (a contrast ratio of at least 1,080,000:1).[6][7] The two options allow for different types of HDR displays such as LCD and OLED.[7]

HDR transfer functions that better match the human visual system than a conventional gamma curve include the Hybrid Log-Gamma (HLG) and Perceptual Quantizer (PQ).[4][8][9] HLG and PQ require a bit depth of 10-bits per sample.[4][8]

Audio[edit]

XDR (audio) is used to provide higher-quality audio when using microphone sound systems or recording onto cassette tapes.

HDR Audio is a dynamic mixing technique used in EA Digital Illusions CE Frostbite Engine to allow relatively louder sounds to drown out softer sounds.

Dynamic range compression is a set of techniques used in audio recording and communication to put high-dynamic-range material through channels or media of lower dynamic range. Optionally, dynamic range expansion is used to restore the original high dynamic range on playback.

Radio[edit]

In radio, high dynamic range is important especially when there are potentially interfering signals. Measures such as spurious-free dynamic range are used to quantify the dynamic range of various system components such as frequency synthesizers. HDR concepts are important in both conventional and software-defined radio design.

Instrumentation[edit]

In many fields, instruments need to have a very high dynamic range. For example, in seismology, HDR accelerometers are needed, as in the ICEARRAY instruments.

Realtime HDR vision[edit]

Mann's HDR (high-dynamic-range) welding helmet augments the image in dark areas and diminishes it in bright areas, thus implementing Computer-mediated reality.

In the 1970s and 1980s, Steve Mann invented the Generation-1 and Generation-2 "Digital Eye Glass", as a vision aid to help people see better, with some versions being built into welding helmets for HDR vision [10] [11] [12] [13] See also, IEEE Technology & Society 31(3)[14] and the supplemental material entitled "GlassEyes". [15]

See also[edit]

References[edit]

  1. ^ Robertson, Mark A.; Borman, Sean; Stevenson, Robert L. (April 2003). "Estimation-theoretic approach to dynamic range enhancement using multiple exposures". Journal of Electronic Imaging. 12 (2): 220, right column, line 26219–228. The first report of digitally combining multiple pictures of the same scene to improve dynamic range appears to be Mann 
  2. ^ "Compositing Multiple Pictures of the Same Scene", by Steve Mann, in IS&T's 46th Annual Conference, Cambridge, Massachusetts, May 9–14, 1993
  3. ^ Reinhard, Erik; Ward, Greg; Pattanaik, Sumanta; Debevec, Paul (2005). High dynamic range imaging: acquisition, display, and image-based lighting. Amsterdam: Elsevier/Morgan Kaufmann. p. 7. ISBN 978-0-12-585263-0. Images that store a depiction of the scene in a range of intensities commensurate with the scene are what we call HDR, or "radiance maps". On the other hand, we call images suitable for display with current display technology LDR. 
  4. ^ a b c T. Borer; A. Cotton. "A "Display Independent" High Dynamic Range Television System" (PDF). BBC. Retrieved 2015-11-01. 
  5. ^ Simon Green and Cem Cebenoyan (2004). "High Dynamic Range Rendering (on the GeForce 6800)" (PDF). GeForce 6 Series. nVidia. p. 3. 
  6. ^ a b "UHD Alliance Defines Premium Home Entertainment Experience". Business Wire. 2016-01-04. Retrieved 2016-07-24. 
  7. ^ a b c "What is UHD Alliance Premium Certified?". CNET. 2016-03-11. Retrieved 2016-07-24. 
  8. ^ a b Adam Wilt (2014-02-20). "HPA Tech Retreat 2014 – Day 4". DV Info Net. Retrieved 2014-11-05. 
  9. ^ Bryant Frazer (2015-06-09). "Colorist Stephen Nakamura on Grading Tomorrowland in HDR". studiodaily. Retrieved 2015-09-21. 
  10. ^ [http://www.slashgear.com/quantigraphic-camera-promises-hdr-eyesight-from-father-of-ar-12246941/ Quantigraphic camera promises HDR eyesight from Father of AR, by Chris Davies, SlashGear, Sep 12th 2012]
  11. ^ Ackerman, Elise (31 Dec 2012). "Why Smart Glasses Might Not Make You Smarter". IEEE Spectrum. Retrieved 1 Jan 2017. 
  12. ^ Mann, Steve (February 1997). "Wearable Computing: A First Step Toward Personal Imaging". IEEE Computer. 30 (2). 
  13. ^ A magical welding helmet that lets you see the world in HDR–in real-time
  14. ^ Mann, Steve (Fall 2012). "Through the Glass, Lightly". IEEE Technology & Society. 31 (3): 10–14. doi:10.1109/MTS.2012.2216592. 
  15. ^ "'GlassEyes': The Theory of EyeTap Digital Eye Glass, supplemental material for 'Through the Glass, Lightly'" (PDF). IEEE Technology and Society. 31 (3). Fall 2012. 

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