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Silicon Optix Reon-VX powers 1080p in Toshiba's HD-XA2 HD DVD player
While Toshiba's latest HD DVD player, the HD-XA2, should finally be shipping today, Silicon Optix has dropped more details on its Reon-VX chip that enables 1080p output. As mentioned previously, instead of outputting 1080i, the HQV chip deinterlaces the 1080i signal within the player itself using per-pixel motion-adaptive deinterlacing to ensure that what gets to the screen is free of jaggies and artifacting. A digital 1080i signal to a 1080p display should be able to be deinterlaced within the TV with no loss of picture quality, but since not all TVs are capable of the task without losing some visual information in the process, this solution should provide the highest, most consistent picture quality available. This same deinterlacing technology -- combined with the enhanced 297MHz video DAC and additional picture quality settings -- is used to enhance SD material, such as SD extras and regular DVDs. All this sounds great in theory, but we have to get the actual hardware in our hands to see if it stands up to the 1080p24 capable Sony BDP-S1 and Pioneer BDP-HD1.
Are you getting all the HDTV resolution you paid for?
Not necessarily, given the results of Home Theater Mag's recent tests of 61 HDTVs. Using test patterns from a Silicon Optix HQV HD DVD, they tested deinterlacing, 3:2 detection and for the 1080p sets, bandwidth. Unfortunately, just over 54% of the HDTVs failed the deinterlacing test, 80% failed the 3:2 test, but the 1080p sets passed the bandwidth test, despite all but one (Pioneer Elite PRO-FHD1) losing some detail. If a HDTV doesn't pass these tests, then you're losing at least some visual information from a 1080i signal. Some televisions throw away half the horizontal lines, which results in a fail on the deinterlacing test, or don't perform inverse telecine on moving images appropriately, failing the 3:2 test. Of course, contrast ratio, refresh rate and black levels still contribute to overall picture quality, but you should take a look at their results to make sure you're getting every pixel you expected from your new HDTV.[Thanks, Ryan]
