My turn to ask about 1080p vs interlace

Edit:

Sorry guys, I had my tooth pulled and Im gonna try and explain this again. So if you're responding to me now.. Give me another chance. Im heavily medicated on vicodin right now :D


My question is this. A movie shown on a standard Large screen at a theatre (as Im assuming some film festivals do instead of a large home theatre size projector). Does a standard DV video movie show large lines horizontally?

Like line 1,2 are video then line 3 is black, line 4,5 video, line 6 is black.

Does this make sense? that would be Interlace.. right?

But if you post edit it in progressive it gets rid of that line that causes the film to look as if its pulling apart because it meshes the interlace into one solid screen? I mean obviouslly if its not shot as progressive 720p or 1080p does it really do the same thing in post production vs a camera that doesnt it naturally or is it losing resolution and quality in post?

i hope this makes sense.

I watched a market ad on Sony.com for one of their high end DLA projectors and it explained in detail what interlace vs Progression is. I sort of understood it but I understand it better now

this is why you see those stupid shitty black thin lines on large analog screens or theatre screens when a scene in a movie was shot by a standard VHS machine when they try and make it look like a home movie.

but in the real world does this happen. Im only asking because I have only been to one film festival in my life and it was Mike and Ike animation some 10 years ago. I just dont want to be disapointed in the quality when I enter. Maybe I should go find one first and watch it and see how video looks on a standard theatre screen.
 
Last edited:
Here hope this makes more sense.

If I was to make a movie on video and its not progressive would it look like this

int.jpg



vs this if its progressive also in DV format

int2.jpg



and if I shot in interlace but rendered it in post edit in progressive mode as Vegas video offers would it still look like 1 vs 2 on a large screen?

I hope this doesnt seem like an obvious questions.. i really never seen DV shot and projected on a large screen bigger then my 52 inch.
 
Hey mr. Goldfish :)

This partly depends on the size of the screen you intend to display the footage on. The larger the screen the more apparent the defects etc.

Generally speaking though you won't notice any blank spaces. So no worries there. The image is updated fast enough that your brain won't pick up on the temporary blank areas. It would be like watching the footage on a very large TV. Now, you may wish to deinterlace to get a different motion feel. Say 24fps or 30fps vs 60 fields. Interlaced footage does have its drawbacks though. If you project it without deinterlacing you will probably see some significant interlacing artifacts such as the comb looking effect on fast movement or flicker on small details (watch the news for instance. Usually they have some scrolling details at the bottom. You can see the combing quite clearly in these instances).

There are many ways to go about deinterlacing. I'm not sure how Vegas goes about this but all will loose some quality in the process. The reason being that a blur is applied to mask the combed edges on moving objects and blend the two fields into a single image.

Interlaced footage footage also has less resolution than progressive scan (can) have. Interlaced footage suffers from an intentional blur the camera adds to help prevent small details from flickering on a TV screen. This works quite well - but it drops the resolution. With progressive scan cameras you can usually turn this blur filter off.

Progressive footage is always preferable when possible. Interlaced footage can look quite good too if the program used to deinterlace the footage does so well.

Not sure if that made sense :D
 
it does and i just wanted to know if im going use the deinterlace feature in vegas if it will help with blank lines.

now it also has a feature that drops the frame speed down to 24 filme. but I dont know if its really a drop down or just for film conversions. will it help give a true film sensation if i render my native 29.97 and drop down the speed to 24fps or does it do nothing?
 
Back
Top