[Tig] JPEG2000 in camera?
Fri Oct 7 12:50:02 BST 2005
On 7 Oct 2005, at 00:33, Bob Friesenhahn wrote:
> Apparently Grass Valley showed a video camera at IBC which outputs
> JPEG2000 compressed files rather than uncompressed DPX, MPEG-2, or
> MPEG-4 SP. Compression is done in real time using the Analog
> Devices ADV202 chip. The same chip supports real-time JPEG2000
> Did anyone at the show see this camera and have comments they can
> share? How does the camera compare with the Grass Valley Viper?
> There is an EE Times article about the camera at "http://
> There is another article at "http://www.planetanalog.com/news/
> It seems that the Grass Valley product sheet is at "http://
The Viper - as I understand it - captures RAW data directly from the
CCD's AD converters, thus there is no gamma correction, colour matrix
or de-mosaicing algorithm yet applied. Such an approach SHOULD yield
an hugely better and more flexible file for grading downstream.
A much cheaper / lower-band device that attempts something similar is
The new Grass Valley camcorder seems to be a direct competitor for
Panasonic's P2 products rather than the more delicate, high-band
machines like the Viper.
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