  Image registration, or alignment of two or more images covering the same
scenes or objects, is of great interest in many disciplines such as remote
sensing, medical imaging, astronomy, and computer vision. In this paper, we
introduce a new application of image registration algorithms. We demonstrate
how through a wavelet based image registration algorithm, engineers can
evaluate stability of Micro-Electro-Mechanical Systems (MEMS). In particular,
we applied image registration algorithms to assess alignment stability of the
MicroShutters Subsystem (MSS) of the Near Infrared Spectrograph (NIRSpec)
instrument of the James Webb Space Telescope (JWST). This work introduces a new
methodology for evaluating stability of MEMS devices to engineers as well as a
new application of image registration algorithms to computer scientists.
