DV

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Related to DVC Pro: DVCPRO HD, Mini DV

DV

(1) (Digital Video) A generic term for capturing and/or editing video in the digital domain.

(2) (Digital Video) A digital videotape format introduced in 1995 for camcorders. Over the years, DV has been widely used in both consumer and professional applications, and the small MiniDV cartridge was very popular in handheld units. Tapeless DV camcorders have also come on the market using optical discs, hard disks and flash memory cards for storage.

DVCAM and DVCPRO
Soon after DV debuted, Sony and Panasonic introduced their own professional variants geared to make editing easier (see DVCAM and DVCPRO). However, the tape width and encoding format are the same, and the cartridges are mostly interchangeable. In pro models, quality camera lenses and electronics make a difference.

Mini DVD Camcorders
Some camcorders have been built that record onto small "mini DVD" discs. However, DVD and DV are not the same video format, and a mini DVD is a disc, while MiniDV is a DV cassette size (see DVD).

DV Is Standard Resolution (SD)
DV records 720 horizontal pixels and 480 interlaced lines of standard resolution in countries with 60Hz electric current and 576 lines for 50Hz. High-definition versions of DV with 720 and 1080 lines are the official HDV standard and Panasonic's DVCPRO HD (see HDV and DVCPRO).

Compression and Specifications
Depending on the motion content of the scenes, DV provides about a 5:1 compression. It uses the same DCT algorithm as MPEG for compression, but it is easier to edit because each frame is compressed independently without relying on the prior frame (intraframe compression).

Based on the IEC 61834 standard, DV tape moves at a constant rate of 18.8mm per second, providing a data rate of 25 Mbps. The SMPTE 314 standard supports 25 Mbps and provides 50 Mbps for studio use. See Micro DV and SD formats.


DV Cassettes
DV uses 1/4" (6.35mm) metal evaporated (ME) tape, and the large cassette holds 4.5-hours of DV and three hours of DVCAM. MiniDV cassettes hold one hour of DV. DVCPRO metal particle (MP) tapes also come in a mid-size cassette, with varying recording time depending on DVCPRO format (see DVCPRO).







All Sizes
DV camcorders range from handhelds (top) to prosumer models (middle) to professional units (bottom).
References in periodicals archive ?
Approximately 15 minutes of raw, unedited video of Anissa Medrano and the four babies is available in DVC Pro and Beta SP formats.
Xilinx FPGAs were selected based on their superior digital signal processing capabilities, low price points and Panasonic's previous experience with Xilinx FPGAs incorporated throughout the DVC PRO HD series.
The system then dubs a broadcast-quality DVC Pro copy of the source material and copies the MPEG-2 version to a DLT.
GoDVD provides transfers from Beta SP, all VHS, Digital 8, Hi8, DVC Pro, DV Cam, Mini DV, Digital Betacam, 3/4-inch, 8mm, Super 8, 16mm film, slides, photos, as well as MPEG files.
With Pinnacle Liquid Edition's enhanced native format editing capabilities including HDV and a comprehensive range of broadcast formats including MPEG-2, Uncompressed, DVC Pro and DV, we can now take on almost any job that clients can think of.
This new location encompasses three spacious edit suites each with Media100 and Final Cut Pro along with broadcast quality finishing capabilities to DigiBeta, DVC Pro, DV and BetaSP as well as a full line of graphics capabilities incorporating After Effects, Photoshop, Illustrator and Cinelook and the ability to create interactive videos using iMedia and event streaming for the web and/or to CD-ROM and DVD.
Designed primarily for the Web, RedZep video technology can also be translated to other formats such as CD-ROM, BetaCam, DVC Pro, DVCam and SVHS.