  Objects in an environment affect electromagnetic waves. While this effect
varies across frequencies, there exists a correlation between them, and a model
with enough capacity can capture this correlation between the measurements in
different frequencies. In this paper, we propose the Wi2Vi model for
associating variations in the WiFi channel state information with video frames.
The proposed Wi2Vi system can generate video frames entirely using CSI
measurements. The produced video frames by the Wi2Vi provide auxiliary
information to the conventional surveillance system in critical circumstances.
Our implementation of the Wi2Vi system confirms the feasibility of constructing
a system capable of deriving the correlations between measurements in different
frequency spectrums.
