在DOOM9看到一篇文章
http://forum.doom9.org/showthread.php?s=&threadid=56425
*************
I cannot correctly ivtc this clip
http://myweb.hinet.net/home4/yingx2/test.avi

No matter how hard I tried, it seemd that I just couldn't recover its original frame rate and progressive frames with Decomb.

When I used Decimate(cycle=5), the result looked jumpy.
Using Decimate(mode=1) instead, I could not get a 24fps encode.

And I can see fields being blended in cases where they should've been properly ivtced. (Bad source?)

What would you suggest?
Thanks in advance.
*************

progressive VS interlaced 怎麼區分啊??

影片好像有分
29.97 progressive
29.97 interlaced
23.976 progressive
是嗎??..

後來
neuron2 這位大大 說
**************
You have what would be 29.97fps progressive if you could get rid of the blended fields.

Strangely enough, I was alerted by one of my users to an ingenious way to use Decomb 4 to get rid of blends:

Telecide(post=false)
Telecide(reverse=true,post=true)

The result is pretty good 29.97fps progressive. No need to decimate it.

Alternatively, you have to just treat it as interlaced video and deinterlace it.
**************

我下載後測試
use Decomb 4 to get rid of blends 可以得到 29.97 progressive的影片
超神奇的..

如果改用 deinterlace it 畫質變差很多喔....

結論.
所以 非每個從電視錄的影片都是interlaced 有些是progressive
這一定要分清楚... 可是我還是不會分 ><... 請高手指示一下.

很多電視卡附的FILTER 都是直接deinterlaced..所以畫面都會感覺模糊化....

像我錄的這段影片
http://myweb.hinet.net/home3/ygfdert/test.avi

我猜是interlaced的影片
基本上 我覺得interlaced的影片 已經沒救了..不管怎麼做deinterlaced都會感覺模糊化了

SO..
整理一下問題..
1.progressive VS interlaced 怎麼區分啊??
2.影片好像有分
29.97 progressive
29.97 interlaced
23.976 progressive
是嗎??..
3.blended fields 是什麼意思?? 怎麼看出來??
4."我覺得interlaced的影片 已經沒救了..不管怎麼做deinterlaced都會感覺模糊化了" 這句話有沒有錯 ??
5. 為什麼會有interlaced的影片??..是電視台為了配合NTSC系統 把影片轉成29.97
可是yingx2大大錄的"衛視電影台" 為什麼是29.97 progressive的影片??