ok, bad choice of wording (my bad)
Lets say, each cameras are connected to corresponding displays
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Originally Posted by edDV
Could you please tell me what causes that and why it doesn't effect video games -
Originally Posted by edDV
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Note in the picture above, each field has some motion blur (e.g. the oval shaped ball) but each field is sharp. It is the deinterlacer that causes field to field "blur".
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guys, we are talking about displaying interlaced videos on a interlaced CRT.
Now you've mentioned "1080i/29.97 can still look good on an interlace display but tends to soften during camera or object motion"
What do you mean by that? -
Originally Posted by edDV
Good hardware deinterlacers will do motion analysis at pixel level on each of a series of frames and switch deinterlace strategies on a pixel or pixel block basis based on the amount of motion and surrounding video characteristics. Slowly moving areas will trigger bob and weave strategies to build up resolution. Faster moving areas will favor field to field motion detail to avoid blur. The eye is sensitive to motion accuracy but not to detail in areas that are moving.
The more sophisticated hardware deinterlacers are found in premium progressive DVD players and upper tier HDTV sets. A quality hardware deinterlacer will improve the look of 480i, 576i and 1080i video. In contrast, cheap progressive DVD players and progressive HDTV sets will perform poorly with 480i and 576i sources. 1080i won't have as many problems since the pixels are relatively smaller. -
thank you guys for helping me with this inquiry.
I think I understand it now.
1. Interlaced does not cause motion blur
2. Motion blur is caused by shutter speed of the camera
3. Anything that was initially rendered using a computer or gaming device will not cause motion blur
Am I on the right track? -
Originally Posted by Dark Alpha
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ya, I've seen people to do that to remove annoying judder
Looks like that it for me. I now know all all about response time, contrast ratio, display panels, interlaced vs progressive, color depth (well, almost) and types of LCD panels. -
Originally Posted by jagabo
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But neither format would blur when panning the camera slowly (like in Pop ideal, news, sports etc…)
Edit: I've just downloaded 60fps progressive video from Stage6 and it had motion blur during movement (clapping or waving hands etc..). So you guys were spot on. Interlaced does not cause motion blur.
again, thank you guys for putting up with me lol -
is this better?
Motion Blur:
Many people have accused interlaced format as the primary cause of motion blur, which simply isn’t true.
When capturing a video in full motion detail (50-60i/p), there’ll be visible motion blur during fast movement/panning (http://img262.imageshack.us/img262/2803/videonn0.gif). This is caused by exposure over a period of time. To reduce/eliminate this effect, camera with high shutter speed is required.
Computer generated images on the other hand are rendered in stills (like hand-drawn cartoons). They have zero exposure time (http://img122.imageshack.us/img122/7374/gamewh4.gif). This method does not cause any form of motion blur unless it was deliberately applied.
Click here for detailed info(http://img96.imageshack.us/img96/2687/cgivsvideojpgzq0.jpg)
So in conclusion, interlaced format does not cause any from of motion blur. It is actually depends on the camera used to capture the video.
[b]Note:[/b] Poor de-interlacers, scalers and video enhancers can cause severe motion blur when displaying interlaced videos on a progressive screen.
I would like thank the users over at the videohelp forums for assisting me on this subject.
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You 60 fps progressive sample was almost certainly captured as interlaced and then blend deinterlaced. Notice how the fast motions look like double exposures.
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I though it was weird too
Do you know of any videos captured in 60fps? -
Originally Posted by Dark Alpha
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Originally Posted by Dark Alpha
Maybe others can grab some weekend ABC or FOX sports 720p MPeg2_TS. Look for high action examples.
This afternoon they are doing "Indianapolis 500 time trials" in 720p. -
Originally Posted by Dark Alpha
I meant that sentence to be read.
1080i/29.97 can still look good on an interlace display but tends to soften during camera or object motion and can have motion artifacts on progressive displays. -
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I hope that all if it. It's getting too hard update my TV guide lol
Feel free to check it out
http://www.avforums.com/forums/showthread.php?t=380872
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