SDI


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SDI

(library)

SDI

(programming)

SDI

(1) See software-defined infrastructure, Single Document Interface, Strategic Defense Initiative and Switched Digital International.

(2) (Serial Digital Interface) SDI is a unidirectional video interface. Standardized by SMPTE in the late 1980s, SDI has been the primary interface for transmitting uncompressed digital video signals. SDI will eventually be replaced by IP-based NDI, and the many cables used in broadcasting facilities will be replaced with an Ethernet topography. See NDI.

SDI uses a high grade of coaxial cable and a BNC connector with Teflon insulation. It also supports optical fibers with ST, SC and FC connectors. Following are the common formats transmitted over SDI. See ITU-R BT.601, BNC connector, fiber-optic connectors and serial interface.
SD-SDI                  Aspect  Transfer(Standard Definition)   Ratio   Rate
 Digitized NTSC (4FSC)    4:3    143 Mbps
 Digitized PAL (4FSC)     4:3    177 Mbps
 Component ITU-R BT.601   4:3    270 Mbps
 Component ITU-R BT.601  16:9    360 Mbps

 HD-SDI (High Definition)  See  HD-SDI.
 Component ITU-R BT.709  16:9  1,485 Mbps
 Dual-link (two cables)        2,970 Mbps

 3G-SDI (3 Gbps)
 One-cable version of HD-SDI   2,970 Mbps



Blackmagic SDI Capture Board
Two sockets are input, and two are output. At 4:2:2 color sampling, SDI uses one line for in or out. However, HD-SDI at 4:4:4 requires two lines. See chroma subsampling. (Image courtesy of Blackmagic Design Pty. Ltd, www.blackmagicdesign.com)
References in periodicals archive ?
Liberty Mutual's SDI product will be available in the fall of 2019.
Short-term SDI also improves diagnostic sensitivity.
Shares in SDI were 4.9% lower at 54.70 pence on Wednesday.
The Pro Capture Dual SDI 4K Plus captures two channels of video at resolutions up to the 4096U2160 4K digital cinema specification, including the 3840U2160 Ultra HD (UHD) TV standard.
Mr Justice Phillips said Rangers' bosses should pick up the vast majority of SDI's legal bills as well as paying their own fees, adding SDI was "entitled to the costs".
Without changing the size of the battery cell applied to the high-voltage residential ESS battery module, Samsung SDI enlarged its capacity by more than 20 percent through the use of new materials and optimizing the module design.
The next step was to calculate the mean distance ([delta]) from each (DB) centroid to the nearest restaurant for each SDI level (Low, Moderate, High).
Sharjah Police returned in the second half with renewed ideas and managed to lay a siege on the SDI goal, but could not find a way through a tough defence line.
"We are very excited to develop our partnership with SDI," said King Abdullah II Design and Development Bureau CEO Support Brigadier General Mohammad Arajneh.
Previously, broadcasters using multiCAM's multiCAM RADIO (for Visual Radio) or multiCAM Conf, E-Learning or Tracking systems (for lectures, presentations or live events) were limited to five SDI cameras.
The acquisition includes all of Tech Conveyor's products and engineering solutions--expanding SDI's materials handling and order fulfillment platform and adding a tilt tray solution with auto-induct features.
Robert Klein of Kalmon Dolgin Affiliates represented the tenant, SDI, and worked directly with the building's ownership, Queens 54th Realty Corp in the deal.