High definition or HD may refer to:

Visual technologies

Blu-ray Disc Blu-ray (Blu-ray Disc or BD) is a Digital media, digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of ...

, the universal optical High Definition disc format *HD Photo, former name for the

JPEG XR JPEG XR (JPEG extended range) is an image compression standard for continuous tone photographic images, based on the HD Photo (formerly Windows Media Photo) specifications that Microsoft originally developed and patented. It supports both los ...

image file format *

HDV HDV is a format for recording of high-definition video on DV (video format), DV videocassette Videotape, tape. Conceived as an affordable high definition format for digital camcorders, HDV quickly caught on with many amateur and professional vi ...

, format for recording high-definition video onto magnetic tape *

HiDef HiDef (short for high definition), also called 24p, is a 24 frames-per-second digital video format for high- resolution capture of motion pictures. The ''24'' refers to the frame rate (24 frames/second) and the ''p'' stands for progressive scannin ...

, 24 frames-per-second digital video format *

High-Definition Multimedia Interface High-Definition Multimedia Interface (HDMI) is a proprietary digital interface used to transmit high-quality video and audio signals between devices. It is commonly used to connect devices such as televisions, computer monitors, projectors, g ...

(HDMI), all-digital audio/video interface capable of transmitting uncompressed streams *

High-definition television High-definition television (HDTV) describes a television or video system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since at least 1933; in more recent times, it ref ...

(HDTV), television signals and apparatus with higher resolution than their contemporary counterparts **

Ultra-high-definition television Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K resolution#Resolutions, 4K UHD and 8K resolution#Resolutions, 8K UHD, which are two digital video formats with an ...

, a further step in television resolution, but not a successor. *

High-definition video High-definition video (HD video) is video of higher resolution and quality than standard-definition. While there is no standardized meaning for ''high-definition'', generally any video image with considerably more than 480 vertical scan lines ( ...

, used in HD broadcasting, digital film, computer HD video file formats, and video games

Audio technologies

Dolby TrueHD Dolby TrueHD is a lossless, multi-channel audio codec developed by Dolby Laboratories for home video, used principally in Blu-ray Disc and compatible hardware. Dolby TrueHD, along with Dolby Digital Plus (E-AC-3) and Dolby AC-4, is one of th ...

, lossless audio compression codec *

DTS-HD Master Audio DTS-HD Master Audio (DTS-HD MA; known as DTS++ before 2004) is a multi-channel, lossless audio codec developed by DTS as an extension of the lossy DTS Coherent Acoustics codec (DTS CA; usually itself referred to as just DTS). Rather than be ...

, lossless audio compression codec *

High Definition Compatible Digital High Definition Compatible Digital (HDCD) is a proprietary audio encode-decode process that claims to provide increased dynamic range over that of standard Compact Disc Digital Audio, while retaining backward compatibility with existing compact ...

, discontinued digital audio optical disc format * High-definition audio, general marketing term for high fidelity audio products and services *

Intel High Definition Audio Intel High Definition Audio (IHDA) (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers. It was released by Intel in 2004 as the successor to their AC'97 PC audio standard, but it ...

, 2004 Intel specification for hardware and associated drivers for Personal computer audio *

Wideband audio Wideband audio, also known as wideband voice or HD voice, is high definition voice quality for telephony audio, contrasted with standard digital telephony "toll quality". It extends the frequency, frequency range of audio signals transmitted ove ...

, also known as HD voice, is high definition voice quality for telephony audio

Music

*"Hi-Definition", 2008 single from ''

Lupe Fiasco's The Cool ''Lupe Fiasco's The Cool'' (commonly referred as ''The Cool'') is the second studio album by American rapper Lupe Fiasco. It was released on December 18, 2007, by 1st & 15th Entertainment and Atlantic Records. Recording sessions took place during ...

'' * ''High Definition'' (Joe Morris album), 2008 * ''High Definition'' (Shootyz Groove album), 1999 *"High Definition", a single from Waterparks' 2019 album, ''

Fandom A fandom is a subculture composed of Fan (person), fans characterized by a feeling of camaraderie with others who share a common interest. Fans typically are interested in even minor details of the objects of their fandom and spend a significan ...

Other

* High Definition (radio program), 2006 Canadian radio program *

High-definition map A high-definition map (HD map) is a highly accurate map used primarily in the field of autonomous driving, containing details not normally present on traditional maps. HD maps are often captured using an array of sensors, such as LiDARs, radars, di ...

, used in autonomous driving {{disambiguation