Massachusetts Institute of Technology

Xian Du

Brian W Anthony

A system for generating an image of a region of interest (ROI) of a target object, the system including a camera, a target stage configured to receive the target object, the target stage configured to provide a translational movement and a rotational movement of the target object, and a controller. The controller is configured to control the camera and target stage to iteratively shift the target along scan trajectories of sample locations to capture images of each of a plurality of concentric rings and sub-rings of a predefined radial pitch over the ROI, the sample locations represented by polar coordinates defining sectors of each of the sub-rings. The controller is further configured to extract super resolution (SR) pixels from the images to reconstruct an SR image of each of the rings in the polar coordinates, and project the SR images into Cartesian coordinate images.

Circular scanning technique for large area imaging

Described embodiments provide a method of generating an image of a region of interest of a target object. A plurality of concentric circular scan trajectories are determined to sample the region of interest. Each of the concentric circular scan trajectories have a radius incremented from an innermost concentric circular scan trajectory having a minimum radius to an outermost concentric circular scan trajectory having a maximum radius. A number of samples are determined for each of the concentric circular scan trajectories. A location of each sample is determined for each of the concentric circular scan trajectories. The locations of each sample are substantially uniformly distributed in a Cartesian coordinate system of the target object. The target object is iteratively rotated along each of the concentric circular scan trajectories and images are captured at the determined sample locations to generate a reconstructed image from the captured images.

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Cambridge, MA, United States of America

Xian Du