Yellow_
16th June 2012, 13:41
I was listening to a podcast from here:
http://www.fxguide.com/fxpodcasts/fxpodcast-the-lowry-process/
About the recovering of detail from limited vertical resolution footage off old tube cameras used by NASA.
http://www.zdnet.co.uk/news/emerging-tech/2009/07/20/nasa-takes-steps-to-restore-apollo-11-footage-39688316/
Lowry's technology uses temporal image processing that collects information from clips and uses them to determine the correct contrast, resolution and noise level in each frame, the company said.
From my limited understanding they discuss temporal analysis over many frames forward and back, stack th frames and determine additional detail then weave that into the frames. Just like that, huh huh. :-)
Image samples here before and after:
http://www.nvidia.com/object/io_1249444897105.html
Could anyone suggest Avisynth plugins / approaches that could work in this way, albeit probably not GPU accellerated, for 'improving' the appearance of detail and resolution in sensor line skipped DSLR video sources.
I'm interested in ways to do this that don't rely on sharpeners and USM type approaches. Linked to Lowrys work on movies like Zodiac and Benjamin Button.
"We then enhanced the images to achieve a consistent amount of sharpness and noise throughout the film," says Cooper.
"David and Peter came to us on Zodiac with some underexposure issues," says Lowry Digital's Alan Silvers. "When they saw that we could help unify the look across the board and bring out fine detail that traditional noise reduction would just crush away, we became part of their standard workflow."
Silvers emphasizes Lowry's unique technology and expertise. "We can reduce noise without softening the picture, and we can find, enhance and compute in additional detail," he explains. "We do that by evaluating the best of each frame, and averaging that resolution across all frames. We developed this image processing technology for restoration but we're finding that the world is catching up to our tools. We are now using them to optimize images at every stage of production and for all outputs. For example, when you reduce noise, enhance fine detail and stabilize the picture, you allow compression engines to allocate more resources to the images themselves. The result is superior quality images on film, or for digital cinema, Blu-ray or Web-placed video."
Here's a sample although probably not a very good one, limited length and no movement.
http://www.yellowspace.webspace.virginmedia.com/Gold.aMOV
Cheers.
http://www.fxguide.com/fxpodcasts/fxpodcast-the-lowry-process/
About the recovering of detail from limited vertical resolution footage off old tube cameras used by NASA.
http://www.zdnet.co.uk/news/emerging-tech/2009/07/20/nasa-takes-steps-to-restore-apollo-11-footage-39688316/
Lowry's technology uses temporal image processing that collects information from clips and uses them to determine the correct contrast, resolution and noise level in each frame, the company said.
From my limited understanding they discuss temporal analysis over many frames forward and back, stack th frames and determine additional detail then weave that into the frames. Just like that, huh huh. :-)
Image samples here before and after:
http://www.nvidia.com/object/io_1249444897105.html
Could anyone suggest Avisynth plugins / approaches that could work in this way, albeit probably not GPU accellerated, for 'improving' the appearance of detail and resolution in sensor line skipped DSLR video sources.
I'm interested in ways to do this that don't rely on sharpeners and USM type approaches. Linked to Lowrys work on movies like Zodiac and Benjamin Button.
"We then enhanced the images to achieve a consistent amount of sharpness and noise throughout the film," says Cooper.
"David and Peter came to us on Zodiac with some underexposure issues," says Lowry Digital's Alan Silvers. "When they saw that we could help unify the look across the board and bring out fine detail that traditional noise reduction would just crush away, we became part of their standard workflow."
Silvers emphasizes Lowry's unique technology and expertise. "We can reduce noise without softening the picture, and we can find, enhance and compute in additional detail," he explains. "We do that by evaluating the best of each frame, and averaging that resolution across all frames. We developed this image processing technology for restoration but we're finding that the world is catching up to our tools. We are now using them to optimize images at every stage of production and for all outputs. For example, when you reduce noise, enhance fine detail and stabilize the picture, you allow compression engines to allocate more resources to the images themselves. The result is superior quality images on film, or for digital cinema, Blu-ray or Web-placed video."
Here's a sample although probably not a very good one, limited length and no movement.
http://www.yellowspace.webspace.virginmedia.com/Gold.aMOV
Cheers.