[Tig] artifacts

[Greg D.]

Here's some Sony propaganda (?) regarding "artifacts:"

"Precision Cinema ProgressiveT Technology Other DVD players detect image
changes at the scan line level-Sony's Precision Cinema Progressive (PCP)
system detects them at the pixel level. The picture is more faithful to the
source-whether film or video-because separate, optimized algorithms are used
to handle the differing pixel behavior. Separate algorithms are also used to
process the moving and still parts of an image, resulting in sharp
backgrounds with moving objects that are virtually free from motion
artifacts."

What do you engineers out there make of the "...virtually free from motion
artifacts??"

How does this relate to the source material??  Can they in anyway actually
make up for bad DVD authoring/encoding/compression work/technique?  Anyone
believe this is doing anything positive?

On a related note, do folks believe in "up converting" DVDs to 1080 etc. at
the player as most now offer?  or just watch em in 480P on your big HD
screen.  Or maybe even just output in 480i and "rely on" for these and other
480i sources (in Sony's case like my SXRD TV) the tv to do the reverse 3:2
and/or "up-rezing"/enhancing via the tv's hardware/software like DRC & other
voodoo??  My Sony TV even lets you customize the ratio of detail (they call
it Reality) to smear (they call it Clarity).
I noticed the other day that my Sony DVD player which I was having
"up-convert" to 480P, caused the picture to stutter badly on pans and text
even flickered back and forth btwn jaggies and ok.  The TV was probably
adding its DRC stuff too.  I also wondered if the issue was related to the
source material being originated and posted in HD "video".  It was a Henson
Kermit the Frog movie from 2002.  I also now wonder if it was the reverse
3:2 getting goofed up because it was video originally??

Anyway, a bit off topic here from actual color enhancement, but it does
matter how it gets home doesn't it!?!?

-Greg Dildine








-----Original Message-----
From: tig-bounces at tig.colorist.org
[mailto:tig-bounces at tig.colorist.org]On Behalf Of timothy norman huber
Sent: Tuesday, January 23, 2007 10:43 AM
To: Telecine Interest Group
Subject: [Tig] Mother F'in Artifacts on a Plane!


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Hello all,

just had the (extreme) pleasure of traveling to the Virgin Islands
after finishing a feature doc (render finished in the nick of time
thankfully).  I should have stayed down there a while longer, but I
had to get back so I could make this post.

What is up with the way airlines treat their CRT monitors/playback
system?

United gets an F for color and image quality.   The monitor nearest
me was almost black and white, the top 1/3 of the screen was
distorted, while the next monitor was bleeding saturation, the next
in line was crushed beyond recognition, etc.   It was so bad I
couldn't watch the film (All the Kings Men)

American gets a C-.  They screened "The Illusionist."   The monitors
were sorta in the same color temp, but the gain and gamma were wacked
to the point I could clearly see vignette mask, grads, and other
tidbits we're supposed to keep hidden from the public eye.   I had to
switch my attention back and forth between monitors to guess what the
colorist had in mind.

The CRTs could be nice, but it would seem the airlines are letting
them slide until they can afford to replace them with even worse
seatback LEDs.   I left my mac in LA because I didn't want to do any
work.  Stupid me.  Should have brought it along just for
entertainment purposes.

Since the airlines do contribute to the studios bottom line, wouldn't
it make sense to have a monitor standard like we have with projector
standards?  I suggest us Tig-ers start a moveon.org-type initiative
to force QC standards, although I need another cup of coffee before I
can come up with a snappy name.

T




timothy norman huber
DP/Colorist
Switch Studios
venice

switch-studios.com
timothyhuber at mac.com



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