A new publication from Opto-Electronic Advances, 10.29026/oea.2023.230120 discuss all-optical object identification and three-dimensional reconstruction based on optical computing metasurface.

Looking at two dimensions from three dimensions is like capturing an object on three dimensions in a two-dimensional plane, which is like " MRI " and 4D Toys. Based on this we will return to 4D Toys.

The complement of a knot is everything in three-dimensional space that isn’t the knot. It’s a topological object—if you wiggle the knot around, then its complement also squishes around.

Pushing Boundaries with FlexiVol Users don’t literally grab the three-dimensional object, but the effect is given through an imaging technique. The device detects where a person’s fingers are and ...