HDTV recorded super interlaced

OK, clue me in. What is 'super' interlaced?

We use ATI MutiMedia Center with an HDTV Wonder to record OTA HDTV
since Nov '04. No difference between the PC and the SIR-T165 set top
box.

Let me see if I've got this straight:

Interlaced means scanning over the picture twice with every other
scan line, odd lines one time, even the other.

Very interlaced means scanning over the picture four times with
every 4th scan line.

Extremely interlaced means scanning over the picture eight times
with every 8th scan line.

Super interlaced means scanning over the picture 16 times with every
16th scan line, and is probably the MPAA's next "uncrackable" form
of copy protection - *NOTHING* can play it!!

Gordon Burditt wrote:
OK, clue me in. What is 'super' interlaced?

We use ATI MutiMedia Center with an HDTV Wonder to record OTA HDTV
since Nov '04. No difference between the PC and the SIR-T165 set
top
box.

Let me see if I've got this straight:

Interlaced means scanning over the picture twice with every other
scan line, odd lines one time, even the other.

'Interlace' is not necessarily done this way. You could scan
progressively, store all the lines in a framestore and then read them
out 'interlaced'. All popular film scanners work this way.


Very interlaced means scanning over the picture four times with
every 4th scan line.

Extremely interlaced means scanning over the picture eight times
with every 8th scan line.

Super interlaced means scanning over the picture 16 times with every
16th scan line, and is probably the MPAA's next "uncrackable" form
of copy protection - *NOTHING* can play it!!

Well, I've been doing commercial TV engineering for 30 years, at a CBS
station, ABC Network in Hollywood, Sony broadcast, a post production
house and a dub house but have never heard of 'very', 'extremely' an
'super' interlaced so I'm assuming this is a crock of s**t

GG

"G-squared" wrote in message
oups.com...
Gordon Burditt wrote:
OK, clue me in. What is 'super' interlaced?

We use ATI MutiMedia Center with an HDTV Wonder to record OTA HDTV
since Nov '04. No difference between the PC and the SIR-T165 set
top
box.

Let me see if I've got this straight:

Interlaced means scanning over the picture twice with every other
scan line, odd lines one time, even the other.

'Interlace' is not necessarily done this way. You could scan
progressively, store all the lines in a framestore and then read them
out 'interlaced'. All popular film scanners work this way.


Very interlaced means scanning over the picture four times with
every 4th scan line.

Extremely interlaced means scanning over the picture eight times
with every 8th scan line.

Super interlaced means scanning over the picture 16 times with every
16th scan line, and is probably the MPAA's next "uncrackable" form
of copy protection - *NOTHING* can play it!!

Well, I've been doing commercial TV engineering for 30 years, at a CBS
station, ABC Network in Hollywood, Sony broadcast, a post production
house and a dub house but have never heard of 'very', 'extremely' an
'super' interlaced so I'm assuming this is a crock of s**t

This is a wild guess: The symptom being observed is that of "line pairing,"
a pronounced defect in the scanning which makes the picture look bad. The
lines in field 2 are not exactly halfway between the lines in field 1 and
lines appear to merge, resulting in a sense of reduced vertical resolution.
At the risk of having the townspeople come up the hill with their torches,
let me say it looks "obviously interlaced."

I remember being able to create the effect with the some vertical hold
controls of old analog sync separator circuits. At its mildest, it's a bit
annoying; at its worst, it's awful.

On 28 Aug 2006 12:41:26 -0700, wrote:

Noozer wrote:
"G-squared" wrote in message
ps.com...
wrote:
G-squared wrote:
OK, clue me in. What is 'super' interlaced?

ah, that just means "seriously interlaced".
i almost wanted to type "super duper interlaced"... probably
even
more
confusing.

Well THAT certainly cleared things up.

Read it as, "very pronounced interlacing when playing back video."

And THIS clarifies how? Are you trying to say the fields got reversed ?
Diagonal lines would turn into someting resembling saw teeth. Is that
it?

I actually had this issue with reversed field order (from an SD
transmission recorded on DVDR).

It showed when I edited on the PC and was playing the clips with
"Power DVD". (I understand there are better software players, but
this is just for checking the cuts.)

I opened the file in the editor and it shows that the fields fits
together (the source being "Progressive Sequential Fields" =PSF) if I
choose to weave based on bottom field instead of the normal top
field.. (I'm in the 50Hz part of the world so there is no 3:2 issue.)

At least what I understand, the top field (odd field) first is the TV
and DVD standard but I read somwhere that DV-cameras use bottom first.
Is that true?

My conlcusion is that in this case, the 2 fields originating from the
same time instant (film frame) are output not as Odd/Even but in the
Even/Odd pair.

I should not matter to a non-processing CRT but transmitting PSF this
way seems like a mistake to me, or is it "allowed" according to
standard?

Anyway, the original looks terrible when played on the PC with Power
DVD, but my TV does a better job of deinterlacing it.

I processed the clip to change the field order (and delay audio) so
now Power DVD can play it better and also play it with "weave".

/Jan