Dolby Vision Explained
What is Dolby Vision?
Dolby VisionTM transforms the way you experience movies, TV shows, and games with incredible brightness, contrast, and color that bring entertainment to life before your eyes. By fully leveraging the maximum potential of new cinema projection technology and new TVs’ display capabilities, Dolby Vision delivers high-dynamic-range (HDR) and wide-color-gamut content. The result is a re ned, lifelike image that will make you forget you are looking at a screen.
Current consumer video delivery and cinema standards are based on the limitations of old technologies and require altering the original content before it can be reproduced for playbackdramatically reducing the range of colors, brightness, and contrast from that captured by modern cameras. Dolby Vision changes that, giving creative teams the con dence that images will be reproduced faithfully on TVs, PCs, and mobile devices that feature Dolby Vision.
Dolby Vision is a natural complement to Dolby Atmos®. It gives movie, television, and game creators the tools they need to create experiences that preserve the creative intent and let consumers experience truly immersive content without compromise.
For manufacturers of televisions, game consoles, personal computers, and mobile devices, Dolby Vision unlocks the full capabilities of their hardware and creates a premium experience that can increase use and enjoyment of these products.
What The Content Creator Is What The Viewer Gets
The limitations in today’s system comes as a natural result of the limitations of current TV and Blu-ray standards. The maximum brightness for broadcast TV or Blu-ray discs
is 100 nits*. But modern TVs often have 300 to 500 nits maximum brightness, so TV manufacturers stretch the brightness of the content to try to use the capabilities of the display. This distorts the images. And because each manufacturer stretches the output differently, every viewer will experience a movie, TV show, or game in a different and unpredictable way.
Dolby Vision solves this problem. Content creators color-grade their content using Dolby Vision compatible reference monitors, which have dramatically higher dynamic range and wider color gamut, to ensure the highest- delity mastering. The Dolby Vision picture contains metadata about the system used to create the nal version
of the content. Because any Dolby Vision television has been carefully calibrated by
the manufacturer and Dolby technicians, our technology can use this metadata and the higher-quality content to produce the best and most accurate representation on every display. This honesty to the creator is why Dolby Vision is being adopted by major studios for the cinema and for delivering the best Hollywood content to the home.
* nit: In lighting, the nit is a unit of visible-light intensity, commonly used to specify the brightness of a cathode ray tube or liquid crystal display computer display. One nit is equivalent to one candela per square meter.
Major difference between the Dolvy Vision approach and other HDR solutions
A major difference between the Dolby Vision approach and other HDR solutions is the metadata that accompanies each frame of the video all the way to the display manager in the consumer-playback device. Systems with generic HDR* carry only static metadata that describes the properties of the color-grading monitor that was used to create the content and some very basic information about the brightness properties (maximum and average light levels) for the entire piece of content. Dolby Vision adds dynamic metadata that is produced during content creation; the dynamic properties of each scene are captured. With this information, the Dolby Vision display manager is able to adapt the content to the properties of the display much more accurately. It allows hues to be preserved properly, which is critical for display of skin tones. Even with mass- market edge-lit TVs, the overall impression of colors is preserved much more accurately.
Guided by the Dolby Vision metadata, the Dolby Vision display manager enables great visual experiences on a wide range of display devices ranging from higher-end OLED TVs with stunning black levels to LCD TVs with advanced technologies like quantum dot, all the way down to mass-market edge-lit TVs.
Technology has moved far beyond current imaging standards for TV and movies. This end-to-end solution delivers dramatic imaging that fully expresses the original creative intent. Dolby Vision enhances today’s viewing experiences and is ready for the next wave of innovation from TV, movies, games, and streaming services
* HDR (High Dynamic Range): The contrast between the brightest whites and the darkest blacks. The high the dynamic range the closer a picture gets to real life.