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4k – Technical Summary.

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Presentation on theme: "4k – Technical Summary."— Presentation transcript:

1 4k – Technical Summary

2 4k or UHD Ultra High Definition (UHD) is 3840x2160 pixels
UHD is often called 4k 4k (digital cinema definition) is 4096x2160 pixels When we talk about “4k” in the home market we mean UHD. “Mastered in 4k” means 4k content downscaled to HD for Blu-ray Supersampling means it looks better than content that was mastered in HD

3 8’ 84” UHD 50” HD 26” SD

4 Picture improvements beyond spatial resolution
Picture specifications for high def are based on CRT TV capabilities With 4k there is an opportunity to improve other picture parameters Parameter Comments Larger color space (ITU-R Rec 2020 or XYZ) Colors that cannot be reproduced on a CRT TV High dynamic range (HDR) More details in the highlights, darker shadows. Brighter screens for better color display 12 bits color depth 8 bit used in HD can cause “contouring” of the image. Higher frame rates 48 fps or 60 fps for high frame rate movies 100 fps or 120 fps sports broadcast

5 Acquiring 4k content – features and episodic
Camera Type Maximum Resolution Comments In use? 4k? 35mm Film Scanned at 4k Most features and all episodic that are shot on film Yes 65mm Film Scanned at 6k “Lawrence of Arabia” No 35mm CCD Digital Cinema Cameras 1920x1080 Sony F35, Genesis (2005) Arri Alexa 2880x1620 or 2880×2160 depending on format CMOS RAW or ProRes Red Epic “5k” CMOS RAW Sony F55 4096x2160 CMOS RAW or XAVC Sony F65 Normally 4096x2160, 8192x2160 possible NOTE: Shots with CGI effects are often rendered at 2k even if the live footage was shot in 4k

6 Not all 4k is created equal
Sony F65 4096 green pixels 2048 red pixels 2048 blue pixels Red Epic 2560 green pixels 1280 red pixels 1280 blue pixels Sony F55 2048 green pixels 1024 red pixels 1024 blue pixels Arri Alexa 1440 green pixels 720 red pixels 720 blue pixels 8k pixels True 4k output 5.5k pixels 4k output 4k pixels “Faux” k output 2.8k pixels 2.8k output Bayer pattern and CMOS RAW

7 Delivering 4k to the consumer
Compressed files are bigger than HD but not 4 times larger 4k adds high frequency detail, affect on encoding depends on content Files for SNE service are 2-3 times size of HD files 4k delivery becomes (more) practical with HEVC (H.265) codec Perhaps 35-40% more efficient Expect to see hardware decoders in 2014 Sony Pictures is requiring significantly better content protection than for HD Movielabs’ Enhanced Content Protection specifications HDCP 2.2 protecting the HDMI link to the TV Sony TVs have HDCP 2.2, not all other 4k TVs do HDCP 1.4 security is compromised

8 Availability of 4k in the consumer market
Sony shipped server loaded with 11 4k movies with the 84” 4k TV in late 2012 Sony 4k Video Unlimited service launched 1st September Preload and download 4k movies and TV shows Content looks better than Blu-ray on 4k TVs Netflix will offer 4k streaming this year on Sony and Samsung TVs Adaptive streaming means instantaneous resolution may be less than 4k or content is heavily compressed Possibility it won’t look noticeably better than HD A lot of interest by broadcasters in UHD BSkyB and Sky Deutschland are experimenting with shooting sports in UHD and with high dynamic range

9 Sony 4K Content Update Native 4K Current Status
X1 server box – currently US only (International scope underway) 70+ features & TV, including entire Breaking Bad series Additional key new releases & catalog ASM 2 (2D), American Hustle, Monuments Men, Fury, Annie, Untitled Cameron Crowe Movie 10 pre-approved catalog titles currently being evaluated “Mastered in 4K” Current Status Driven by alignment with Sony 4K TV launch 15 total titles across 2 waves Global bundle & retail opportunities underway Continue to utilize 4K masters for 1080p Blu-rays – emphasize quality of 4K in Home Entertainment marketing


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