Google has developed a neural network algorithm that can create reasonable approximations of a 32×32 image from a downsized 8×8 image:
Of course, as we all know, it's impossible to create more detail than there is in the source image—so how does Google Brain do it? With a clever combination of two neural networks. The first part, the conditioning network, tries to map the the 8×8 source image against other high resolution images. It downsizes other high-res images to 8×8 and tries to make a match.
The second part, the prior network, uses an implementation of PixelCNN to try and add realistic high-resolution details to the 8×8 source image. Basically, the prior network ingests a large number of high-res real images—of celebrities and bedrooms in this case. Then, when the source image is upscaled, it tries to add new pixels that match what it "knows" about that class of image. For example, if there's a brown pixel towards the top of the image, the prior network might identify that as an eyebrow: so, when the image is scaled up, it might fill in the gaps with an eyebrow-shaped collection of brown pixels. To create the final super-resolution image, the outputs from the two neural networks are mashed together. The end result usually contains the plausible addition of new details.
Pixel Recursive Super Resolution
There is an excellent write-up on Wikipedia about various techniques for creating face hallucinations — aka an enhanced-resolution image of a face.
(Score: 1, Funny) by Anonymous Coward on Friday February 10 2017, @09:39AM
If 'yo' is a unit of measure, the algorithm presumably outputs a rapper?
(Score: 2) by DannyB on Friday February 10 2017, @02:57PM
Maybe not a rapper but a singer. And 'yo' is a unit of measure the yotta [wikipedia.org]-octave to denote the vocal range of the artist. You would probably need a suitable prefix such as nano atto yotta octaves, and even this probably gives incredibly small decimal numbers of measurement.
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(Score: 0) by Anonymous Coward on Friday February 10 2017, @04:23PM
Dude... what!? lmao
(Score: 1) by Scruffy Beard 2 on Friday February 10 2017, @04:35PM
maybe dannyB is a bot.
(Score: 0) by Anonymous Coward on Saturday February 11 2017, @02:00AM
Then who needs a man?