What is the difference between Dolby Vision and HRD

Dolby has played a key role in the development of HDR for both commercial cinema and home theatre applications. From a home entertainment perspective, the company’s most important contribution has been the advanced form of HDR, known as Dolby Vision.

　　What is Dolby Vision?

　　Dolby Vision is a suite of technologies developed by Dolby Laboratories for High Dynamic Range (HDR) video that provides a distinct visual experience. It covers content creation, distribution, and playback. Includes dynamic metadata that adjusts and optimizes each frame of HDR video to fit the capabilities of consumer displays, replicating the content creator's intent. It delivers stunning image quality through innovative HDR and wide color gamut imaging, both on-screen and in specially mastered content. Dolby Vision delivers incredibly brighter brightness, deeper darkness, greater contrast, richer colors, ultra-vibrant colors, fine detail, and a 3D feel like never before on a TV.

　　Dolby Vision enhances the fidelity of UHD and HD video signals for OTT online streaming, broadcast TV, and gaming applications.

　　The differences between Dolby Vision and HDR10

　　One of the things that makes Dolby Vision different is that it’s designed as an end-to-end HDR process. Dolby Vision is designed to preserve information that was originally captured and pass it on. It does this using metadata that’s then read by the Dolby Vision decoder in the TV you’re watching. The aim is to give you an HDR experience that’s closer to the original by supplying more information.

　　The most significant advantage of Dolby Vision HDR versus HDR10 is the addition of dynamic metadata to the core HDR image data. Dolby Vision-capable TVs combine the scene-by-scene information received from the source with an awareness of their own capabilities in terms of brightness, contrast, and color performance. With HDR10 content, your HDR TV only receives static metadata.

　　Another advantage of Dolby Vision is that the metadata is embedded into the video signal, meaning it can run across ‘legacy’ HDR connections as far back as version 1.4b. Despite only using static metadata, HDR10 requires HDMI 2.0a compatibility.