Ok so i have read up about interlaced and progressive footage and I now have a solid understanding of what is going on. First lets start with PROGRESSIVE.
Ok so all animators should be familiar with this. 25 frames persecond = 1 frame for every 1/25th of a second right? all tikety boo. now say you wanted higher quality, maybe step up to 50fps? so how many frames do you get now?? yep just testing you, 1 frame for every 1/50th of a second. ALL FINE.
Here is an example of some frames, for arguments sake imagine that this is a small snippet from a 50fps sequence:
F1 (50fps)
F2 (50fps)
F3 (50fps)
F4 (50fps)
F5 (50fps)
Hopefuly that all makes sense. If it dosnt maybe film and vfx are not for you....
But what about INTERLACED???
Ok so now say you wanted to broadcast, or stream 50fps of 1080p? sorry bub, aint gonna happen. wayyy too much data flying down the line. Enter Interlaced footage!
Interlaced footage is designed to produce a much clearer representation of motion, giving a fluidity to the picture, and removing any flashing or missed key frames, such as in sports. It is also designed to double the rate at which you perceive the fps of the footage. so somthing thats 25fps can look sorta like somthing thats 50fps! upscaling 25fps>50fps* and being able to broadcast at the same time!!! sounds good huh? NOPE.
I have a severe dislike for this format. remeber the image sequence of my head? ow lets see what the frames would look like with interlaced quality. (remember were going from 50fps to 25fps)
F1 (25fps)
F2 (25fps)
F3 (25fps)
WHAT THE HELL! why would you ever want this?? well its understandable that i dont like it. as I want to work in the vfx industry, imagine my disgust over blured, ghosty liney pixley horrible images...
but the fact is that this old format is still good in some respects, such as broadcast. However as soon as technology advances to the stage where 1080p 50fps can be sent into your telly box, its sure to die instantly!
So now to set about converting i to p.
Ok so all animators should be familiar with this. 25 frames persecond = 1 frame for every 1/25th of a second right? all tikety boo. now say you wanted higher quality, maybe step up to 50fps? so how many frames do you get now?? yep just testing you, 1 frame for every 1/50th of a second. ALL FINE.
Here is an example of some frames, for arguments sake imagine that this is a small snippet from a 50fps sequence:
F2 (50fps)
F3 (50fps)
F4 (50fps)
Hopefuly that all makes sense. If it dosnt maybe film and vfx are not for you....
But what about INTERLACED???
Ok so now say you wanted to broadcast, or stream 50fps of 1080p? sorry bub, aint gonna happen. wayyy too much data flying down the line. Enter Interlaced footage!
Interlaced footage is designed to produce a much clearer representation of motion, giving a fluidity to the picture, and removing any flashing or missed key frames, such as in sports. It is also designed to double the rate at which you perceive the fps of the footage. so somthing thats 25fps can look sorta like somthing thats 50fps! upscaling 25fps>50fps* and being able to broadcast at the same time!!! sounds good huh? NOPE.
I have a severe dislike for this format. remeber the image sequence of my head? ow lets see what the frames would look like with interlaced quality. (remember were going from 50fps to 25fps)
WHAT THE HELL! why would you ever want this?? well its understandable that i dont like it. as I want to work in the vfx industry, imagine my disgust over blured, ghosty liney pixley horrible images...
but the fact is that this old format is still good in some respects, such as broadcast. However as soon as technology advances to the stage where 1080p 50fps can be sent into your telly box, its sure to die instantly!
So now to set about converting i to p.
No comments:
Post a Comment