Uncompressed video

uncompressedclean HDMIRAWNot compressedraw videosuncompressed footageuncompressed ultra-HD videouncompressed, unencrypted digital video
Uncompressed video is digital video that either has never been compressed or was generated by decompressing previously compressed digital video.wikipedia
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HDMI

High-Definition Multimedia InterfaceHDMI 1.4HDMI 2.0
It is conveyed over various types of baseband digital video interfaces, such as HDMI, DVI, DisplayPort and SDI.
HDMI (High-Definition Multimedia Interface) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device.

Serial digital interface

SDIHD-SDI3G-SDI
It is conveyed over various types of baseband digital video interfaces, such as HDMI, DVI, DisplayPort and SDI.
These standards are used for transmission of uncompressed, unencrypted digital video signals (optionally including embedded audio and time code) within television facilities; they can also be used for packetized data.

Digital video

videodigitaldigitally
Uncompressed video is digital video that either has never been compressed or was generated by decompressing previously compressed digital video.
The above are accurate for uncompressed video.

WiGig

802.11ad60 GHz Wi-Fi (WiGig)DMG
HD can be transmitted using higher speed interfaces such as WirelessHD and WiGig.

Expeed

Nikon EXPEEDExpeed 4Expeed 3
The Expeed 3 (FR) (variants EI-158 and EI-175) offers no significant change, but introduced the first DSLRs to offer uncompressed video output (8bit 4:2:2) over HDMI: Nikon D4, Nikon D800/D800E, Nikon D600, Nikon D7100 and Nikon D5200.

Data compression

compressionvideo compressioncompressed
Uncompressed video is digital video that either has never been compressed or was generated by decompressing previously compressed digital video.
Uncompressed video requires a very high data rate.

Digital Visual Interface

DVIDVI-IDVI-D
It is conveyed over various types of baseband digital video interfaces, such as HDMI, DVI, DisplayPort and SDI.

DisplayPort

SlimPorteDPDisplay Stream Compression
It is conveyed over various types of baseband digital video interfaces, such as HDMI, DVI, DisplayPort and SDI.

Moving Picture Experts Group

MPEGMotion Picture Experts GroupMPEG encoding
Some HD video cameras output uncompressed video, whereas others compress the video using a lossy compression method such as MPEG or H.264.

Advanced Video Coding

H.264H.264/MPEG-4 AVCMPEG-4 AVC
Some HD video cameras output uncompressed video, whereas others compress the video using a lossy compression method such as MPEG or H.264.

Compression artifact

artifactscompression artifactsmosquito noise
In any lossy compression process, some of the video information is removed, which creates compression artifacts and reduces the quality of the resulting decompressed video.

Solid-state drive

SSDsolid state drivesolid-state drives
Recording to a computer is a relatively inexpensive alternative to implementing a digital video recorder, but the computer and its video storage device (e.g., solid-state drive, RAID) must be fast enough to keep up with the high video data rate, which in some cases may be HD video or multiple video sources, or both.

RAID

redundant array of independent disksRAID arrayRedundant Array of Inexpensive Disks
Recording to a computer is a relatively inexpensive alternative to implementing a digital video recorder, but the computer and its video storage device (e.g., solid-state drive, RAID) must be fast enough to keep up with the high video data rate, which in some cases may be HD video or multiple video sources, or both.

Computer program

programprogramscomputer programs
Due to the extreme computational and storage system performance demands of real-time video processing, other unnecessary program activity (e.g., background processes, virus scanners) and asynchronous hardware interfaces (e.g., computer networks) may be disabled, and the process priority of the recording realtime process may be increased, to avoid disruption of the recording process.

Background process

backgroundbackground processesbackground task
Due to the extreme computational and storage system performance demands of real-time video processing, other unnecessary program activity (e.g., background processes, virus scanners) and asynchronous hardware interfaces (e.g., computer networks) may be disabled, and the process priority of the recording realtime process may be increased, to avoid disruption of the recording process.

Antivirus software

antivirusanti-virusanti-virus software
Due to the extreme computational and storage system performance demands of real-time video processing, other unnecessary program activity (e.g., background processes, virus scanners) and asynchronous hardware interfaces (e.g., computer networks) may be disabled, and the process priority of the recording realtime process may be increased, to avoid disruption of the recording process.

Computer network

networkcomputer networkingnetworking
Due to the extreme computational and storage system performance demands of real-time video processing, other unnecessary program activity (e.g., background processes, virus scanners) and asynchronous hardware interfaces (e.g., computer networks) may be disabled, and the process priority of the recording realtime process may be increased, to avoid disruption of the recording process. Standards also exist for carriage of uncompressed video over computer networks.

Computer multitasking

multitaskingmulti-taskingmultitask
Due to the extreme computational and storage system performance demands of real-time video processing, other unnecessary program activity (e.g., background processes, virus scanners) and asynchronous hardware interfaces (e.g., computer networks) may be disabled, and the process priority of the recording realtime process may be increased, to avoid disruption of the recording process.

Real-time computing

real-timereal timereal-time systems
Due to the extreme computational and storage system performance demands of real-time video processing, other unnecessary program activity (e.g., background processes, virus scanners) and asynchronous hardware interfaces (e.g., computer networks) may be disabled, and the process priority of the recording realtime process may be increased, to avoid disruption of the recording process.

PCI Express

PCIePCI-EPCI-Express
HDMI, DVI and HD-SDI inputs are available as PCI Express (partly multi-channel) or ExpressCard, USB 3.0 and Thunderbolt interface also for 2160p (4K resolution).

ExpressCard

ExpressCard/34Express cardExpressCard 54
HDMI, DVI and HD-SDI inputs are available as PCI Express (partly multi-channel) or ExpressCard, USB 3.0 and Thunderbolt interface also for 2160p (4K resolution).

USB 3.0

USB 33.0USB Type C 3.1
HDMI, DVI and HD-SDI inputs are available as PCI Express (partly multi-channel) or ExpressCard, USB 3.0 and Thunderbolt interface also for 2160p (4K resolution).

Thunderbolt (interface)

ThunderboltThunderbolt 3Light Peak
HDMI, DVI and HD-SDI inputs are available as PCI Express (partly multi-channel) or ExpressCard, USB 3.0 and Thunderbolt interface also for 2160p (4K resolution).

4K resolution

4K2160p4K video
HDMI, DVI and HD-SDI inputs are available as PCI Express (partly multi-channel) or ExpressCard, USB 3.0 and Thunderbolt interface also for 2160p (4K resolution).

Ingex

Software for recording uncompressed video is often supplied with suitable hardware or available for free e.g. Ingex.