The high speed thermal imaging is necessary in many applications.
However, the traditional column-wise readout implementations reduce the
achievable frame-rate. Also, the analog integration of each individual
pixel is not possible without sacrificing the pixel area. In this paper
we present an algorithm that can be used in parallel focal-plane
processing for fast imaging. First we prove that our method is valid in
the ideal case. Then we add non-idealities such as noise and show means
to cope with them.