Enhancing Spatial Resolution of Images from Light Field Imaging Systems Using Sub-Pixel Disparity

摘要

A light field imaging system captures different images provide views that are shifted by sub-pixel amounts relative to one another. These views can be combined to produce a higher resolution digital image of the object.

主权项

1. A light field imaging system for producing an image of an object, the light field imaging system comprising:
a primary optical subsystem that forms an optical image of an object, the optical image located at an image plane of the primary optical subsystem; a light field sensor module comprising a secondary imaging array and a sensor array, the secondary imaging array imaging a pupil of the primary optical subsystem onto the sensor array, the secondary imaging array displaced from the image plane so that the sensor array captures an array of views of the object, the views exhibiting sub-pixel disparity; and a processing module coupled to receive the views with sub-pixel disparity, and to combine the views into a digital image of the object having a resolution higher than a resolution of any view.