What are these short horizontal lines in digital video ?

[SingSing]

From some of the Ripped DVD, I see bunch of short (white ?) horizotal lines around an object. Mostly around a human subject.

Sometime I don't.

I am seeing a lot of these from DVCAM capture.

I turn on de-interlace in TMPGENC and it some how make them less obvious on SVCD.

What are they ? What is the preferred approach to eliminate or deal wit them ?

[Baldrick]

http://www.geocities.com/lukesvideo/interlacing.html

[SingSing]

Thank for the article/link.


Can I assume all NTSC (SVCD and DVD and DV) are all interleaved ?

Why same DVD never show any comb effect ?

If I leave the source and the result interleav, will that yield the best result ?

[Dave B]

In fact almost all DVDs are Progressive Scan (not interlaced)

The SVCD standard supports interlaced video so you should only need to de-interlace when making a VCD (or other non interlaced video stream)

[SingSing]

In fact almost all DVDs are Progressive Scan (not interlaced)

I though all NTSC TV are inetrleaved.

We normally connect the DVD player to TV via rca or svideo connection.
Are the signal on these connection interleaved ?
if not when did it get converted ? or did they ?