Systems and methods for generating depth maps using a set of images containing a baseline image

摘要

Systems and methods for implementing array cameras configured to perform super-resolution processing to generate higher resolution super-resolved images using a plurality of captured images and lens stack arrays that can be utilized in array cameras are disclosed. An imaging device in accordance with one embodiment of the invention includes at least one imager array, and each imager in the array comprises a plurality of light sensing elements and a lens stack including at least one lens surface, where the lens stack is configured to form an image on the light sensing elements, control circuitry configured to capture images formed on the light sensing elements of each of the imagers, and a super-resolution processing module configured to generate at least one higher resolution super-resolved image using a plurality of the captured images.

主权项

1. A method of generating a depth map from a plurality of images captured from different viewpoints, comprising:
normalizing a set of images using calibration data stored in a storage device using an address conversion module, where:
the set of images comprises a plurality of images that are:
captured from different viewpoints including sampling diversity;include different occlusions sets;wherein the occlusion set of a first image is the portion of a scene visible in a second image that is occluded in the first image; andthe set of images includes:
images captured using the same imaging characteristics;images captured using different imaging characteristics; anda first image that captures pixels around an edge of a foreground object that is visible in a baseline image and is in the occlusion set of a second image captured using the same imaging characteristics as the first image; detecting and metering parallax using a parallax confirmation and measurement module, where detecting and metering parallax comprises:
determining the parallax that yields the highest correlation between pixels from images captured using the same imaging characteristics accounting for the positions of imagers that captured the images by:
performing redundant pair-wise measurements between pixels from images captured using the same imaging characteristics to determine pixel correlation for different parallax-induced shifts;keeping track of various pair-wise measurements and calculating a parallax difference that yields the highest pixel correlation ignoring pixels in the images that are in an exposed occlusion set; and generating a depth map using the parallax confirmation and measurement module based upon the measured parallax.