Wireless HDMI Prototype Announced
legoburner writes "Tzero Technologies and Analog Devices announced that they have created a wireless HDMI interface for HDTVs, next-gen DVD players, and set-top boxes. The backbone for the technology is ultrawideband, also used as a future replacement for wired USB. The Analog Device compresses data with the [lossy] JPEG2000 video codec, which is then packetized and encrypted, and transmitted via the Tzero MAC and PHY chip."
JPEG2000 has both lossless and lossy modes.
Did I miss something in the article indicating which they were using?
If you get your HD from digi cable or dish (which 90% of HDTV owners do), then the signal has already been compressed in MPEG2 or MPEG4 on it's way down the pipe.
Then again, this thing is just adding in another compress/decompress cycle - not good IMO.
JPEG and JPEG2000 are very different lossy image compression algorithms. JPEG uses discrete cosine transforms, whereas JPEG2000 uses wavelet transforms, which are much better at representing non-periodic data, like you'd see in motion video.