Video - A Practical Guide to Video and Audio Compression - page 91

1920 x 1200
1920 x 1080 1440 x 1080

1920 x 720 1280

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 1125 raster

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 ×

× 1200,

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

Description Width Height

Non-standard HDTV format similar to XGA computer display sizes 1080 720

SMPTE 296M HDTV format proposed for European trials 1280 720

Proposed European HDTV format 1920 720

Sony HDCAM format 1920 1080

SMPTE 274M HDTV format 1920 1080

Experimental high-def format that is a multiple of SDTV on NTSC 1920 1200

systems