Page 8 - HD-TVI Guide Unpriced

Guide A Guide to HD-TVI ...
This is a CIF resolution image.
288px
352px

Try reading the number plate & identifying
the facial features of the man.

Contrast this picture to the one on the facing page. The car number plates are clearly
recognisable and so are the man’s facial features.
On a DVR that records in CIF quality, the image above would be effectively scaled to
fit the screen and would be blurred and “blocky” the number plates would be harder
to read and the man would be less recognisable.
To do this comparison of CIF to HD-1080P, each image has been scaled so that they
are in proportion to the pixels that they are recorded at.
The CIF image size is around 20x less than the HD-1080P format and you could fit
around 20 CIF images in to the HD one.

8 www.aliendvr.com