Lens and color filter arrangement, super-resolution camera system and method

摘要

A camera system includes lens units such that each lens unit is assigned to a single-color color filter unit. The lens and color filter assembly may be combined with pixel units such that a plurality of monochromatic, low-resolution images can be obtained, and the monochromatic images refer to shifted versions of the same image object. By a super-resolution technique that includes shift-compensation a mosaicked image is obtained, which is then demosaiced. In the resultant image, only few artifacts appear. Simple color filter arrays allow a simplified fabrication process and provide less chromatic aberrations at less computational effort.

主权项

1. A camera system comprising:
at least three lens units; at least three color filter units, each color filter unit being assigned to one of the at least three lens units and including a plurality of color filter sections; and at least three pixel units, each pixel unit being assigned to one of the lens units and including a plurality of pixel sensors arranged in a matrix, wherein the color filter sections have at least three different filter colors and each color filter unit is single-colored, and the at least three pixel units capture original monochromatic low-resolution images of a same scene or object that are pixel shifted versions imaged from deviating positions with respect to each other, and that are to be fused to form a polychromatic high-resolution image, each of the original monochromatic low-resolution images including a lower number of pixel values than a number of the pixel sensors that are available in the pixel units.