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Chromakeying requires a high fidelity signal to reduce
artifacts in the key, usually uncompressed. When high definition signals
need recording to today's hard drive arrays, a lot of bandwidth is
required. Usually this is very expensive, proprietary RAID systems
usually offer either speed or size. BlueRAID
external SATA storage enclosure is based on SATA drives which connects
to the PC via a single cable. Cost is optimized by not using an onboard
controller to convert SATA to SCSI, which actually limits bandwidth,
instead piping the SATA signal directly to the controller or motherboard.
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The first iteration of SATA (Serial ATA) ran at 1.5
Gigahertz, and was only marginally faster than the fastest PATA (Parallel
ATA) connection, UDMA-133. The next iteration of SATA was SATA300
running at 3.0 Gigahertz, also called SATA II. The next iteration
for SATA looks to raise it to 6 Gigahertz sometime in the next few
years.
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Chromatte curtains fold easily into compact (although
slightly heavy) bundles. The fact that the it does need banks of fluorescent
lights to get an even key also means that only the most minimal of
lighting kits is necessary. Saves on space: With only the camera mounted
LiteRing required to light the background, you no longer need the
space to accommodate heavy studio lighting. With it you can chroma
key in smaller light controlled locations. Traditional chroma key
fabric absorbs light where Chromatte is reflective, efficiently using
its light source to give a bright and even background. This saves
approximately 1KW of light for every 2m of conventional background
fabric or painted walls. Time saved, space saved, lighting saved,
heat saved, fewer retakes means money saved. |
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