High Definition Video Production

High Definition Video Production

High Definition Video production is the art and service of producing a finished video product to a customer's requirement and consumption, on a High Definition format. High Definition formats are normally either interlaced 1080 line video with a frame rate of 30 frame/s, or 720 line video, progressively scanned, with a frame rate of 60 frame/s. However, there are variants that exceed these standards.

Formats

The following digital tape formats are commonly used for HD Video Production:

* HDCAM. The Sony HDCAM format supports 1080 resolutions at frame rates of 24p, 25p, 50i, and 60i. HDCAM stores the video at 1440 x 1080, which is a 33 percent reduction horizontally from 1920. It also uses a unique color sampling of 17:6:6, which means that HDCAM has only half the color detail of other HD formats. HDCAM is 4.4:1 compressed and is 8-bit, but supports 10-bit input and output.

* D5-HD. The Panasonic D5-HD format uses the D5 tape shell. Unlike HDCAM, D5-HD can do 720/60p, 1080/24p, 1080/60i, and even 1080/30p. D5-HD compresses at 4:1 in 8-bit mode and 5:1 in 10-bit mode, and supports 8 channels of audio.

* DVCPRO-HD. This Panasonic HD format, sometimes called D7-HD, is based on the same tape shell used for DVCAM and DVCPRO. D7-HD does 720/60p and 1080/60i, with 1080/24p in development. It uses 6.7:1 compression, and supports 10-bit input and output per channel. DVCPRO-HD supports 8 channels of audio.

* HDV. This format is one of a number of emerging formats that are being used in lower-cost cameras. HDV was introduced with JVC's groundbreaking professional consumer (prosumer) HD camera, the JY-HD10, which records highly compressed MPEG-2 on a mini DV tape. HDV is an MPEG-2 transport stream that includes a lot of error correction. Its video uses interframe-compressed MPEG-2, at 19 megabits per second (Mbit/s) for 720p and 25 Mbit/s for 1080i. Audio is encoded with 384 kbit/s MPEG-1 Layer 2 stereo. The interframe encoding enables HDV to achieve good quality video at lower bit rates, which means much more content per tape, but it increases the difficultly of editing the content. The next article in this series will provide additional details about interframe encoding.

Future

With the increasing use of video in a wide range of commercial and government functions, and the increased access modern customers have to viewing video on a range of new devices, video production is a fast growing industry, and High Definition is now becoming the de facto standard in the Production industry.

See also

*Perspective Video


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • High-definition video — High definition (HD) video generally refers to any video system of higher resolution than standard definition (SD) video, most commonly at display resolutions of 1280×720 (720p) or 1920×1080 (1080i or 1080p). This article discusses the general… …   Wikipedia

  • High definition optical disc format war — The high definition optical disc format war was a format war between the Blu ray Disc and HD DVD optical disc standards for storing high definition video and audio. These standards emerged between 2000 and 2002 and attracted both the mutual and… …   Wikipedia

  • High-definition television — Logo High definition television (HDTV) is video that has resolution substantially higher than that of traditional television systems (standard definition television). HDTV has one or two million pixels per frame, roughly five times that of SD… …   Wikipedia

  • High-definition pre-recorded media and compression — The first attempt at producing pre recorded HDTV media was a scarce Japanese analog MUSE encoded laser disc which is no longer produced. See MUSE LD.In the U.S. market, the first currently available prerecorded HD media was D Theater. Comprising… …   Wikipedia

  • High-definition multimedia interface — Le High Definition Multimedia Interface (HDMI) (en français : Interface Multimedia Haute Définition) est une norme et interface audio/vidéo entièrement numérique pour transmettre des flux chiffrés non compressés. Le HDMI permet de connecter… …   Wikipédia en Français

  • High-Definition Multimedia Interface — Connecteur HDMI (type A) Le High Definition Multimedia Interface (HDMI) (en français, « Interface Multimédia Haute Définition ») est une norme et interface audio/vidéo totalement numérique pour transmettre des flux chiffrés,… …   Wikipédia en Français

  • China Blue High-definition Disc — CH DVD Media type High density optical disc Developed by DVD Forum, Optical Memory National Engineering Research Center (OMNERC) Usage Data storage, including high definition video China Blue High Definition (CBHD) (Chinese: 中国蓝光高清光盘) (China High …   Wikipedia

  • Comparison of high definition optical disc formats — This article is about comparative HD optical disc formats. For a history of the Blu ray/HD DVD format war, see High definition optical disc format war. This article compares the technical specifications of multiple high definition formats,… …   Wikipedia

  • Video Toaster — The NewTek Video Toaster is a combination of hardware and software for the editing and production of standard definition and high definition video in NTSC, PAL, and resolution independent formats on Commodore Amiga computers and subsequently on… …   Wikipedia

  • Video codec — A video codec is a device or software that enables video compression and/or decompression for digital video. The compression usually employs lossy data compression. Historically, video was stored as an analog signal on magnetic tape. Around the… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”