Image Processing Reference
1920 x 1200
1920 x 1080
1440 x 1080
1920 x 720
1080 x 720
Figure 5-13 Common HDTV resolutions for HDTV.
625-line services it is not as large an improvement unless the implementation promises 720
visible lines. At the high end, image sizes of 1920
and standards worldwide are converging on this format. This is a good choice because it
is the same as that used for D-cinema, and therefore it is helpful to the distributors to only
have to master their content into one format. Another popular resolution is 1920
1080 are carried on a 2200
which is a multiple of the composite raster size for NTSC.
Note that some sources quote the HDCAM resolution as being 1440
1080. This may
be one of the modes that HDCAM equipment supports, but the image dimensions of 1920
1080 are quoted in the Sony HDW-730S camcorder spec sheet.
In Europe the debate continues as to whether a 720p or 1080i format should be used
for high-definition TV broadcasts. The 1920
720p 50 format is attractive because it fits with
the available broadcast spectrum, but it is different from what is being adopted by the rest
of the world. Progressive scanning is certainly more attractive than interlaced scanning.
Table 5-3 Common HDTV Picture Sizes
Non-standard HDTV format similar to XGA computer display sizes
SMPTE 296M HDTV format proposed for European trials
Proposed European HDTV format
Sony HDCAM format
SMPTE 274M HDTV format
Experimental high-def format that is a multiple of SDTV on NTSC