Figure 2
Experiment of speckle encoding and decoding. (a) Silicone material used in the experiment. (b) Experimental setup. The speckle pattern is measured with a digital camera and processed with the network architecture shown in (d). The decoded information \({{{\textbf {x}}}}\) (indentation depth, contact position, and temperature in this case) are displayed in real time with a monitor. (c) Speckle patterns produced by optical scattering from the silicone material. The patterns vary depending on the deformation of the silicone material and temperature. (d) Proposed deep learning architecture. It comprises the common feature extractor and decoder (regression section).
