JVC NAB-2007 Native Acquisition & Pixels per Second presented To the Home HDTV

JVC Professional APRIL 2007 NAB-2007 The ProHD Report

Panasonic HPX500 2/3-inch 3CCD

• Native imager acquisition 960x640p60 plus 2-dimensional pixel shift/offset

• DVCPRO-HD recording of 1280x1080i60 max resolution

• DVCPRO-HD recording of 960x720p60 max resolution

• Compressed DVCPRO-HD bitrate = 120Mbps (approx gross)

• HD-SDI out

• Interchangeable lens

And, here are the JVC ProHD competitive features:

JVC GY-HD250U 1/3-inch 3CCD

• Native acquisition 1280x720p60 (No tricks needed)

• ProHD recording of full ATSC 1280x720p60 resolution

• Compressed MPEG-2 GOP transport stream = 20Mbps (19.7)

• HD-SDI out

• Interchangeable lens

• SD Pool feed input

Panasonic has recently announced their new AVC-Intra CODEC which does provide

for full ATSC bandwidth mode, but at a compressed bitrate of 100Mbps. A 50Mbps

mode will be available, but this is still high for HD ENG implementations within

existing ENG work flows. AVC-Intra is scheduled for first deliveries in the summer

of 2007. Based on prior experience with new HD compression formats, it will

take some time before industry partners are ready to fully support the brand

new format in workstations, laptop editors, servers and networks.

Native Acquisition & Pixels per Second presented To the Home HDTV

Earlier in this Report (page 10), we discussed “the total number of effective

maximum pixels per second” being presented to the home viewer through the home

HDTV, and the effect of the Kell/Interlace factor in substantially decreasing the total

perceived resolution for interlaced video while barely affecting progressive video. It

seems obvious that such pixels per second presentation may be limited by the

following:

• Native acquisition resolution in the HD camcorder

• Limiting resolutions in HD camcorder recording

• Limiting resolutions through the post & delivery chain

• Native resolution of home HDTV