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The device: A sub-$15 single-board computer
，这一点在heLLoword翻译中也有详细论述
Instead of perturbing each pixel in the input image at random, we can choose to dither by a predetermined amount depending on the pixel’s position in the image. This can be achieved using a threshold map; a small, fixed-size matrix where each entry tells us the amount by which to perturb the input value , producing the dithered value . This matrix is tiled across the input image and sampled for every pixel during the dithering process. The following describes a dithering function for a 4×4 matrix given the pixel raster coordinates :
Трамп заявил о победе в войне с Ираном00:44
The predictor takes the context encoder’s output, representations of the ~155 visible patches, and must predict what the target encoder produced at the ~37 masked positions. It knows where the gaps are (via positional encodings for both visible and masked positions) but has never seen their content.