| MikeB said: @ RocketPig International Standards Commission of Japan "HD TV with spatial scalability for 720p (1280x720 pixels) at 50 fps with 1080p (1280x1080 pxels) at 50 fps enhancement" http://www.itscj.ipsj.or.jp/sc29/29w02911.pdf Come on you promised... |
@MikeB way to go ahead and site Scalable Video Coding as a source. That is not the resolution that is meant to show on the screen instead it is the accepted resolution for reduced bit streams(aka data rates). It would make sense that Sony would develop a 1080P game using this standard just to reduce the load on the PS3 and still give a devent looking output but it is not 1080P but a substandard.
Scalable video coding (SVC) was developed by the Joint Video Team (JVT) of ISO/IEC MPEG &
ITU-T VCEG in a standardization project completed in October 2007. The SVC enhancement of
the AVC core design includes the specification of three scalable profiles (the Scalable Baseline,
Scalable High, and Scalable High Intra profiles). It enables the construction of SVC bitstreams that
contain reduced bit rate substreams. The substreams can be extracted from the complete bitstream,
thereby providing scalability in terms of bit rate, decoding complexity, and frame rate, spatial
resolution, or quality. In typical cases, one or more of the substreams of the SVC bitstream will be
fully compatible with ordinary AVC decoders. Frame rate scalability (also known as temporal
scalability) or spatial scalability refers to the presence of a substream with a lower sampling rate
than the overall bitstream in terms of time or spatial resolution. Quality scalability refers to the
presence of a substream with the same sampling rate as the parent SVC stream, but having a lower
bit rate with a correspondingly lower quality.
The verification tests were conducted using conditions suitable for a range of possible application
scenarios for progressive video, including
• Video-conferencing with quality scalability for the Common Intermediate Format (CIF,352x288 pixels) at 30 frames per second (fps) video, and spatial scalability for 640x352
pixels at 60 fps video with an enhancement substream for 1280x704 pixels at 60 fps;
• Mobile TV with quality scalability for the Quarter Video Graphics Array (QVGA, 320x240pixels) format at 25 fps video, and spatial scalability for QVGA at 12.5 fps with an
enhancement substream for VGA (640x480 pixels) at 25 fps enhancement;
• HD TV with spatial scalability for 720p (1280x720 pixels) at 50 fps with 1080p (1280x1080pixels) at 50 fps enhancement; and
• Movie production with spatial scalability for 1080p at 25 fps being the highest resolution,with two lower resolutions provided for scalability.
