High Declared Value
Stands for "High-Definition Video." According to a consortium of manufacturers ...
Sony 25Mb stream over firewire for HD. Allows very good quality even at the same rate as SD DV due to temporal MPEG compression. A primary "i" frame every 15 frames contains all picture information; each intermediate frame only carries difference information. Cannot be edited on a selected frame, must be decoded to baseband first.
High Definition Video. Video format which is intended to provide the facility to record high-definition (as opposed to standard definition) MPEG-2 video on standard DV media (DV or MiniDV cassette tape). Since the frame size of HDV is much larger than the SD frame size, the data stream needs to be compressed before it is recorded to tape. This compression ensures that a 60 minute MiniDV tape can still hold 60 minutes of HDV footage. The frame size of HDV is either 1280x720 or 1440x1080 (compared to the standard 1920x1080 that is defined for 1080i HD). Despite this, HDV footage can be mixed with more tradional HD footage in post production.
igh efinition ideo" The high-definition, wide screen version of the DV magnetic tape format. Like DV, HDV recording moves at a constant data rate and stores data on the same DV and MiniDV tapes as SD camcorders. Introduced in 2003, HDV uses 4:2:0 color sampling, MPEG-2 video compression and MPEG-1 audio compression (16-bit stereo). HDV machines record YCbCr frames in 1280x720p, 1980x1080i or 1980x1080p resolutions.
high-density voice. MTP - Cisco IOS Media Termination Point designation for transcoding. NAT - Network Address Translation.
High Definition Video (HDV) is a video format designed to record compressed HDTV video on standard DV media (DV or Mini DV cassette tape).