onisama
5th August 2003, 16:57
I've been working on El Hazard - the Wanderers. It is an analog NTSC source, DVD2AVI reports it as being interlaced. If I look at it frame by frame it loooks more like telecine, with 2 of every 5 frames interlaced. The "suspected" progressive frames still have some possible interlaced artifacts on the edges, it looks like checkerboard noise. The telecine pattern is not consistant and changes throughout the movie, at times the pattern does not repeat for up to 15 frames.
I've made several attempts at encoding this beast, but have not had much success. I am continually getting block niose in high motion areas. I'm encoding to svcd, using cce and avisynth. I'm using a 4 pass encode with an avg bitrate of 1900 and image qulaity of 15. My understanding of block noise, correct here if I'm wrong, is it is caused by either low bitrates (1900 isn't that low) and/or bad deinterlacing. I've tried higher bitrates and its still there, I also tried decreasing image priority in cce to 0.
I've tried several deinterlacing filters (bob, blendfields, smoothdeinterlacer, smartdeinterlacer) and every setting for telecide and decimate I could think to try. Here are some of my scripts:
Telecide(reverse=true,guide=0,gthresh=50,chroma=true,threshold=30)
Decimate(cycle=5,quality=3,mode=2)
Deen("c3d",1,10,12,3)
##Blockbuster(method="noise",block_size=3,luma_offset=-1,luma_threshold=28,detail_min=1, detail_max=25)
Warpsharp(20)
BicubicResize(480,480,0.0,0.6)
Telecide(guide=1,gthresh=50,chroma=true,threshold=30)
Decimate(cycle=5)
BicubicResize(480,480,0.0,0.6)
Telecide()
Decimate()
BicubicResize(480,480,0.0,0.6)
Telecide(post=false)
BicubicResize(480,480,0.0,0.6)
Telecide(guide=1,gthresh=50,chroma=true,threshold=30)
Decimate(cycle=5,quality=3,mode=2)
Deen("c3d",1,10,12,3)
Blockbuster(method="noise",block_size=3,luma_offset=-1,luma_threshold=28,detail_min=1, detail_max=25)
Warpsharp(20)
BicubicResize(480,480,0.0,0.6)
Blockbuster didn't really help, probably b/c it isn't dct blocks I'm seeing. This is getting very frustrating. Has anyone done a clean conversion of The Wanderers? Is there something I'm missing? I've read all the itvc, deinterlacing tutorials and posts I can find, nothing seems to give me the quality I want.
Thx in advance.
I've made several attempts at encoding this beast, but have not had much success. I am continually getting block niose in high motion areas. I'm encoding to svcd, using cce and avisynth. I'm using a 4 pass encode with an avg bitrate of 1900 and image qulaity of 15. My understanding of block noise, correct here if I'm wrong, is it is caused by either low bitrates (1900 isn't that low) and/or bad deinterlacing. I've tried higher bitrates and its still there, I also tried decreasing image priority in cce to 0.
I've tried several deinterlacing filters (bob, blendfields, smoothdeinterlacer, smartdeinterlacer) and every setting for telecide and decimate I could think to try. Here are some of my scripts:
Telecide(reverse=true,guide=0,gthresh=50,chroma=true,threshold=30)
Decimate(cycle=5,quality=3,mode=2)
Deen("c3d",1,10,12,3)
##Blockbuster(method="noise",block_size=3,luma_offset=-1,luma_threshold=28,detail_min=1, detail_max=25)
Warpsharp(20)
BicubicResize(480,480,0.0,0.6)
Telecide(guide=1,gthresh=50,chroma=true,threshold=30)
Decimate(cycle=5)
BicubicResize(480,480,0.0,0.6)
Telecide()
Decimate()
BicubicResize(480,480,0.0,0.6)
Telecide(post=false)
BicubicResize(480,480,0.0,0.6)
Telecide(guide=1,gthresh=50,chroma=true,threshold=30)
Decimate(cycle=5,quality=3,mode=2)
Deen("c3d",1,10,12,3)
Blockbuster(method="noise",block_size=3,luma_offset=-1,luma_threshold=28,detail_min=1, detail_max=25)
Warpsharp(20)
BicubicResize(480,480,0.0,0.6)
Blockbuster didn't really help, probably b/c it isn't dct blocks I'm seeing. This is getting very frustrating. Has anyone done a clean conversion of The Wanderers? Is there something I'm missing? I've read all the itvc, deinterlacing tutorials and posts I can find, nothing seems to give me the quality I want.
Thx in advance.