Originally posted by: Citizen The noise you're seeing is what's on the laserdisc, the 5x capture-merge system meant I could do away with temporal softening as the picture you get is as close to what's on the laserdisc as possible.
I intentionally left the noise there for a couple of reasons; if I were to add a temporal softener filter to reduce this noise it would mean even more motion smearing and I hate that kind of smearing so I don't use temporal softeners unless I really have to, secondly to maintain an overall even quality picture feel to it because removing the noise through temporal softening would mean when there's no camera movement the picture would look extremely crisp & clean but when things started moving the noise level would increase and look worse than if the static scene already had some noise.
The dotcrawl could be because of the capture device I use, a Canopus ADVC-100 which converts the analogue video to DV so there's some compression artifacts, the 5x capture-merge and subsequent filtering helped reduce some of the compression artifacts but probably not entirely.
I intentionally left the noise there for a couple of reasons; if I were to add a temporal softener filter to reduce this noise it would mean even more motion smearing and I hate that kind of smearing so I don't use temporal softeners unless I really have to, secondly to maintain an overall even quality picture feel to it because removing the noise through temporal softening would mean when there's no camera movement the picture would look extremely crisp & clean but when things started moving the noise level would increase and look worse than if the static scene already had some noise.
The dotcrawl could be because of the capture device I use, a Canopus ADVC-100 which converts the analogue video to DV so there's some compression artifacts, the 5x capture-merge and subsequent filtering helped reduce some of the compression artifacts but probably not entirely.
Yes laserdiscs are noisy and also keep in mind that the PAL standard is aprox 3 dB noisier than the NTSC standard due to the higher bandwidth and no multi-capture-averaging process can change that, it can only reduce random noise in the capture chain, which of course is still very important.
But I wonder if the noise could be reduced even further by averaging 4-5 french or 4-5 german discs of the same release through the same capture chain, intheory manufacture imperfections like noise and dropouts would then also be reduced, but maybe it would require discs that are manufactured at the same plant and almost at the same time. Anyway it was just a thought and the discs would also need to be captured 4-5 times each so we talking about 16-25 captures and who has 4-5 discs of the same ANH release..?..
Regarding the dotcrawl, I think the ADVC-100 uses a Philips saa7114 capture chip and this has a 2D 2-4 line adaptive combfilter which is quite good, better results could possibly be achieved with a 3D combfilter but those are not so common for PAL capture devices.
BTW, Citizen keep up the great work.