HD MPEG-2 Test Patterns - Page 2

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

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

Added vertical resolution patterns for 1080i and 720p.

Ron

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

Ron

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

Noted.

Ron

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

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

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

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