Super Resolution Imagery From Multi-Frame Sequences with Random Motion.

摘要

A general method is described for achieving super resolution imagery from multiple frame image sequences that contain motion. The method assumes low- noise, focal plane array imagery recorded with uncontrolled image motion that can included some random jitter. Using this approach, moderate resolution, fast frame image sequences can be processed to achieve high-resolution image sequences displayed at conventional frame rates. The super resolution processing depends only on the imagery, requiring no externally controlled micro-dither or a priori information such as the sensor motion or range to the background. Typical sensor stabilization requirements are relaxed using this method, however, to achieve optimum performance there are some constraints on the motion. Specifically, the stabilization must still good enough so that the resulting random dither is only a few pixels and must be statistically well behaved. Processing examples are given using previously recorded image sequences from a wide FOV MWIR staring array sensor on-board an aircraft.