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Athene noctua
Athene noctua athene noctua civetta
Pandion haliaetus
Pandion haliaetus falco pescatore pandion haliaetus
Falco eleonorae
Falco eleonorae falco della regina falco eleonorae
Pandion haliaetus
Pandion haliaetus Sony A77II + Sony 300mm f/2.8 SSM II
EXIF: 300mm; 1/1000"; f/4.0; ISO100
falco pescatore pandion haliaetus
Alcedo atthis (Martin pescatore)
Alcedo atthis (Martin pescatore) Sony A77II + Sony 300mm f/2.8 SSM II
EXIF: 300mm; 1/60"; f/5.6; ISO1250
alcedo atthis martin pescatore uccelli animali natura
Alcedo atthis
Alcedo atthis Sony A77II + Sigma 150-500
EXIF: 500mm; 1/100"; f/9.0; ISO800
alcedo atthis martin pescatore uccelli animali martin pescatore natura
Actitis hypoleucos
Actitis hypoleucos Piro piro piccolo
Sony A77II + Sony 300mm f/2.8 SSM II
EXIF: 300mm; 1/320"; f/5.6; ISO1250
actitis hypoleucos animali piro piro piccolo uccelli
Athene noctua
Athene noctua Sony A77II + Sigma 150-500
EXIF: 500mm; 1/320"; f/8.0; ISO200
animali athene noctua civetta rapaci sardegna uccelli
Himantopus himantopus
Himantopus himantopus Sony A77II + Sony 300mm f/2.8 SSM II
EXIF: 300mm; 1/400";f/4.0; ISO1000
cavalieri italia himantopus himantopus
Ritratto di un sultano
Ritratto di un sultano Sony A77II + Sony 300mm f/2.8 SSM II
EXIF: 300mm; 1/400"; f/5.6; ISO500
pollo sultano porphyrio porphyrio
Upupa epops
Upupa epops Sony A77Ii + Sony 300mm f/2.8 SSM II
EXIF: 300mm; 1/400"; f/6.3; ISO250
upupa upupa epops
Athene noctua
Athene noctua Sony A77II + Sigma 150-500
EXIF: 500m; 1/640"; f/7.1; ISO800
athene noctua civetta

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Articles: Digital Photography Review (dpreview.com)

All articles from Digital Photography Review
  • NVIDIA researchers can now turn 30fps video into 240fps slo-mo footage using AI

    NVIDIA researchers have developed a new method to extrapolate 240fps slow-motion video from 30fps content using artificial intelligence.

    Detailed in a paper submitted to the Cornell University Library, NVIDIA researchers trained the system by processing more than 11,000 videos through NVIDIA Tesla V100 GPUs and a cuDNN-accelerated PyTorch deep learning framework. This archive of videos, shot at 240fps, taught the system how to better predict the positioning differences in videos shot at only 30fps.

    This isn't the first time something like this has been done. A post-production plug-in called Twixtor has been doing this for almost a decade now. But it doesn't come anywhere close to NVIDIA's results in terms of quality and accuracy. Even in scenes where there is a great amount of detail, there appears to be minimal artifacts in the extrapolated frames.

    The researchers also note that while there are smartphones that can shoot 240fps video, it's not necessarily worth it to use all of that processing power and storage when something that will get you 99% of the way there is possible using a system such as theirs. 'While it is possible to take 240-frame-per-second videos with a cell phone, recording everything at high frame rates is impractical, as it requires large memories and is power-intensive for mobile devices,' the researchers wrote in the paper.

    The research and findings detailed in the paper will be presented at the annual Computer Vision and Pattern Recognition (CVPR) conference in Salt Lake City, Utah this week.

(C) 2017 Giuseppe Gessa