Sub-pixel registration for super high resolution image acquisition based on temporal integration
Towards the development of super high resolution image acquisition, we present a temporal integration imaging method. The image processing algorithm for a generic temporal integration imaging method consists of the three stages: segmentation, sub-pixel registration and reconstruction. The segmentation stage and the sub-pixel registration stage are interdependent and extremely difficult to construct completely. Instead, aiming at a particular type of application where a user indicates a region of interest (ROI) on an observed image, we construct a prototypal temporal integration imaging method which does not involve the segmentation stage at all. Moreover, we develop a new quadrilateral-based sub-pixel registration algorithm, the key idea of which is to cover a ROI with deformable quadrilateral patches whose spatial fineness is automatically changed in accord with the curvature of the object's surface and then to describe an image warp between two image frames as deformation of the quadrilateral patches and finally to perform a sub-pixel registration by warping an observed image to a temporally integrated image with the recovered warping function.
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