Digital Cinema refers to the use of digital technology to distribute or project motion pictures as opposed to the historical use of motion picture film. A movie can be distributed via hard drives, the Internet, dedicated satellite links or optical disks. Digital movies are projected using a digital projector instead of a conventional film projector. Digital cinema is distinct from high-definition television and is not dependent on using television or high-definition videostandards, aspect ratios, or frame rates. In digital cinema, resolutions are represented by the horizontal pixel count, using 2K (2048×1080 with 2.2 megapixels) or 4K (4096×2160 with 8.8 megapixels).
A color space is a predefined specification that delineates a particular group of colors and is mapped into a device’s gamut so that the device’s colors correspond to real-world colors. DCI-P3 refers to the color space used in the Digital Cinema industry which encompasses much more than REC709 (Bluray Discs). Hollywood films are sent to commerical theaters in DCI-P3 in order to match the gamut of the digital projection equipment that is used. Up until now, DCI-P3 content has been limited to digital movie theaters and has not been available on consumer devices. As the Digital Cinema standard, all DCP movie files are encoded with 4:4:4 (Chroma and Luminance) and with 12 bit color depth to maintain extremely high image quality. BluRay discs use a smaller color space range of REC709 with 4:2:0 (Chroma and Luminance) and 8 bit color depth which causes the image quality to be compromised.
Digital Cinema P3 Color Space
Digital Cinema Package (DCP) playback using JPEG2000 codec provides Visually Loseless Compression for manageable theatrical movie playback file size while maintaining image quality.
JPEG2000 fares extremely well with the reconstructed video being virtualy identical to the source. In contrast, BluRay movie files use MPEG codecs for High Level Compression to create a more compact movie file size designed to fit on a small disc, thus the image quality is compromised. MPEG compression artefacts introduce themselves as a mosaic effect (restricted to certain parts of the image) and the motion between frames is more juddery which is known as macro-blocking.
Digital Cinema JPEG2000 Codec
2K DCP: 2048x1080
4K DCP: 4096 x 2160
Digital Cinema Package (DCP) playback of 4K resolution contains up to 8,847,360 pixels and 2K resolution contains up to 2,211,840 pixels. Combined with high quality playback codecs and high-resolution, Digital Cinema provides large screen viewing for an Immersive Visual Experience. Standard High Definition (HD) which is normally found on BluRay discs contain lower quality playback codecs designed for smaller screen viewing such as flat panel displays.
Digital Cinema 4K & 2K Resolution
BluRay HD: 1920x1080
Auro 3D Audio features the critical component in the accurate playback of native 3D audio content - HEIGHT - by using a speaker layout that constructs three vertical layers around the listener. This advanced configuration is capable of reproducing highly accurate, native 3D audio for a superior immersive experience.
Auro 3D Audio
Dolby Atmos redefines the cinema experience by offering content creators new ways to tell their stories. It adds the ability to control distinct sound elements in a soundtrack to the traditional channel-based approach for mixing, and it ensures that the audience experience is always the best possible for the specific playback environment.
Dolby ATMOS Surround