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HD MPEG-2 Test Patterns - Page 2

post #31 of 290
Thread Starter 
I've also created a 4:2:2 bitstream for this pattern. If your decoder can handle 4:2:2, you should use the 4:2:2 pattern. Believe it or not, but MyHD cards will decode 4:2:2. EDIT: Well, maybe MyHD can decode 4:2:2. My MDP-120 displays an almost correct image for a few seconds and then locks up the machine.

Here's the 0 delay red bar in MPEG-2 encoded/decoded 4:2:2 on top and the original 4:2:2 bitmap on the bottom.



Ron
post #32 of 290
Thread Starter 
Added a bunch of new (but simple) patterns.

1) Full field grey scale 10 through 100 IRE in 10 IRE steps.
2) 75% color windows Rec. 601
3) 75% color windows Rec. 709
4) 75% color fields Rec. 601
5) 75% color fields Rec. 709

Ron
post #33 of 290
thanks.
Your testpatterns are great.
post #34 of 290
yes, a belated but earnest THANK YOU !!!!

post #35 of 290
Thread Starter 
Added vertical resolution patterns for 1080i and 720p.

Ron
post #36 of 290
Thread Starter 
Added vertical resolution pattern with motion (for 1080i->1080p deinterlacing testing).

Ron
post #37 of 290
Quote:
Originally Posted by dr1394 View Post

Added vertical resolution pattern with motion (for 1080i->1080p deinterlacing testing).

Ron

Awesome. I will try this on my 7800 card later today.

-- Rich
post #38 of 290
hey guys. this may sound like a really stupid question but i downloaded all the patterns. what do i have to do to view them, can they be burned to DVD for use with my tv?

thanks so much.
Carmine
post #39 of 290
Quote:
Originally Posted by noizemaker View Post

hey guys. this may sound like a really stupid question but i downloaded all the patterns. what do i have to do to view them, can they be burned to DVD for use with my tv?

thanks so much.
Carmine


Have the same question. Found this link on the Forum that may be of help
http://www.avsforum.com/avs-vb/showt...hreadid=395744. Never done this before so it's a first for me. Good luck!
post #40 of 290
Thread Starter 
Quote:
Originally Posted by noizemaker View Post

hey guys. this may sound like a really stupid question but i downloaded all the patterns. what do i have to do to view them, can they be burned to DVD for use with my tv?

thanks so much.
Carmine

Most folks that are using the patterns for calibration are using either a video card or ATSC/QAM receiver card (like the MyHD MDP-130) that has a DVI or component output set to some HD resolution.

If you just want to see the patterns, use can use either the VLC http://www.videolan.org/vlc/ or elecard http://www.elecard.com/download/ decoders. Both players can handle the Transport Stream format.

Converting to DVD is not recommended since you lose the HD resolution in the process. You would be better served by SD patterns. See the calibration disc thread, http://www.avsforum.com/avs-vb/showthread.php?t=586139

Ron
post #41 of 290
Ron:

Is is possible to us the DVI port on my Apple to HDMI on my set and still maintain the resolution of your original file?

Thanks.
post #42 of 290
These pattern have been great.

I am having trouble adjusting for overscan on 720P and 1080i stations. The stations are very inconsistent. Sometime the image fits perfectly other not. It would be nice to set the overscan for sum amount like 2% and forget it.

It would be great to have 1080i and 720P overscan test patterns

Thanks,

Rich
post #43 of 290
Any way to put these on a removable HDD with a 1394 interface to stream into a set without a HTPC connected?
post #44 of 290
nice work.
has anybody tried deinterlacing test pattern? can nvidia or ati handle it?

thanks.
post #45 of 290
Thread Starter 
Quote:
Originally Posted by RichB View Post

These pattern have been great.

I am having trouble adjusting for overscan on 720P and 1080i stations. The stations are very inconsistent. Sometime the image fits perfectly other not. It would be nice to set the overscan for sum amount like 2% and forget it.

It would be great to have 1080i and 720P overscan test patterns

Thanks,

Rich

Noted.

Ron
post #46 of 290
Thread Starter 
Quote:
Originally Posted by susanstone View Post

nice work.
has anybody tried deinterlacing test pattern? can nvidia or ati handle it?

thanks.

See the "Tested and Failed: throwing away half the Resolution by Gary Merson" threads:

http://www.avsforum.com/avs-vb/showthread.php?t=608670

http://www.avsforum.com/avs-vb/showthread.php?t=608998

Here's some patterns with 3/2 pulldown that aren't hyperlinked on the main page.

1) 1080i@29.97 bitstream of rotating "helicopter" bar. The source is 72 frames of a solid (progressive) bar in both fields that advances 360/72 or 5 degrees per frame. However, 3/2 pulldown has been turned on at the source. If you examine each frame, you'll see the bar as solid in 3 frames and then interlaced in 2 frames (in a repeating sequence).

http://www.w6rz.net/vertrezivtc.zip

2) 1080i@29.97 bitstream with inverse telecine flags of the same source. Unfortunately, the encoder I used is not able to stay is film mode when the bar goes horizontal. This is due to the encoder being a 3 chip hardware encoder where each chip does a strip of the image (top, middle and bottom). When the bar goes horizontal, it's only in the portion of the image that's being processed by the middle chip. The top and bottom chips don't see the repeated field, and the encoder drops to video for a few frames.

http://www.w6rz.net/vertrezivtcflags.zip

3) 1080p@23.976 bitstream. A progressive encode of the 72 frames without 3/2 pulldown. I tossed this one in for folks to see if their decoder can properly decode 24p bitstreams. On a good decoder, all three bitstreams should act the same.

http://www.w6rz.net/vertrez24p.zip

Ron
post #47 of 290
Thread Starter 
Overscan and pixel cropping pattern added. Only 1080i for now.

Overscan lines at 0, 2.5 and 5.0 percent. Pixel cropping bars from 0 to 16 pixels. Wacky REC. 709 YCbCr gamut just to fill the middle of the pattern with something.

http://www.w6rz.net/overscancrop.zip

Ron
post #48 of 290
dr1394,

Great Pattern. This was very interesting. With TheatTek 2.1.1/NVidia 7800 I can see on pixel border. I am assuming that is zero overscan.

With MyHD 1080i, I did some adjusting. I can get to zero overscan horizontally, but the vertical never delivers the border, but it is close. Watching PBS-HD and some 4x3 content you can really see that some stations have not figured how to crop the broadcasts.

Thanks again,

Rich
post #49 of 290
Just tried out the vertical resolution / deinterlacing patterns, and I have some questions.

The single pixel strip I understand -
all pixels of one field are on, all pixels in the other field are off.
It is the 2, 3, and 4 strips cases I'm not sure about.

For the two strip case, does each field have alternating on/off lines
Fld1 1111111111111
Fld1 0000000000000
...
Fld2 1111111111111
Fld2 0000000000000

yeilding

Fld1 1111111111111
Fld2 1111111111111
Fld1 0000000000000
Fld2 0000000000000

after they are deinterlaced?
And for the three strip case,

Fld1 1111111111111
Fld2 1111111111111
Fld1 1111111111111
Fld2 0000000000000
Fld1 0000000000000
Fld2 0000000000000

assuming bob deint, one out of three lines 'flash'?

And the four strip case is a doubled up version of the two strip case?

Many thanks for making these tests available!
post #50 of 290
Thread Starter 
Yes, you have it correct. On an interlaced (CRT) monitor, the 1 and 3 pixel strips will flicker at a 30 Hz rate, while the 2 and 4 pixel strips will be stable.

Ron
post #51 of 290
Thanks for the details.

I don't want to hijack your thread, but I have two observations regarding the vertrez tests on my crt I am trying to understand.

1) I would assume that a crt would draw 1080i as just that - two passes, scan each field, with interleaved scan lines. For the 1 and 3 pixel strips, why do I see any flicker at all? Is it due to short phosphor duration ('on' pixels not glowing long enough?)

2) I am seeing a perplexing effect with the 2 pixel test - somewhat visible with vertrez1080, quite apparent with vertpix2 (full screen). Rather than a uniform display, I am seeing 8 cycles of a varying brightness band across the screen.
To draw an analogy,
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
/////////////////
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
/////////////////
The above shows two of the bands, with the '<' part being darker and the '>' part brighter. My gut reaction is I am seeing a scaling effect - which doesn't make sense, as 1080i is supposed to be one of the set's native resolutions (480p is the other). Or is this due to the crt shadow mask (how many lines of holes)?
post #52 of 290
I downloaded the 1080p resolution pattern (thank you host) and noticed a weird problem on my 6600GT.
I managed to get perfect pixel mapping using Overlay and VMR7 using NVideo Decoder on my 1080p display. Yet when I switch to VMR9, I loose vertical resolution and the decoder seems to perform some filtering. Anybody faced such issue and can help because I need to run video in VMR9 for my dual display setup.

Tkx.
post #53 of 290
Thread Starter 
Site has been updated with links to video quality clips. These are a set of clips encoded at 12, 18, and 23 Mbps at 1280x1080, 1440x1080 and 1920x1080 resolutions. Also linked vertical resolution patterns with 3:2 pulldown.

Ron
post #54 of 290
Ron,

I be giving these a spin later tonight.

I can't wait for the HD DVD versions

Maybe you should do a shareware version?

Thanks,

-- Rich
post #55 of 290
Quote:
Originally Posted by RichB View Post

Ron,

I be giving these a spin later tonight.

I can't wait for the HD DVD versions

Maybe you should do a shareware version?

Thanks,

-- Rich

you can make your own with Ulead's MF5
post #56 of 290
Quote:
Originally Posted by dr1394 View Post

I've hosted some HD MPEG-2 test patterns on my website.

http://www.w6rz.net

They are HD MPEG-2 Transport Streams at the standard 19.39 Mbps ATSC bitrate. The first patterns are 601 and 709 color bars, and some resolution frequency bursts.

I've already had a request for IRE window patterns, so they'll be available soon. Any requests or suggestions are welcome.

Ron

Dang......what is a .ts file???
post #57 of 290
it's a Transport Stream file, as described in what you quoted.
post #58 of 290
Transport stream files are unknown to me.
Can you direct me to a site that will tell me all about them?
post #59 of 290
Quote:
Originally Posted by fred33 View Post

Transport stream files are unknown to me.
Can you direct me to a site that will tell me all about them?

http://en.wikipedia.org/wiki/Transport_stream
post #60 of 290
Ok.....got it now....I think
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