Image registration using joint spatial gradient maximization
AssigneeMitsubishi Electric Research Laboratories, Inc.
InventorsFatih M. Porikli, Xue Mei
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Abstract
A method registers images by first determining spatial gradient magnitudes for each pixel in each image to provide a corresponding energy image. Each energy image is transformed according to motion parameters associated with the energy image. An average sum of the transformed energy images is maximized. The motion parameters are then updated according to the maximized average sum. The above steps are repeated until a termination condition is reached, and then the images can be registered with each other according to the updated motion parameters.
Claims9
A method for registering a plurality of images, comprising the steps of:
- determining a spatial gradient magnitude for each pixel in each image to determine a corresponding energy image;
- transforming each energy image according to motion parameters associated with the energy image;
- maximizing an average sum of the transformed energy images;
- updating the motion parameters according to the maximized average sum;
- repeating the transforming, maximizing and updating steps until a predetermined termination condition is reached;
- and
- registering the plurality images with each other according to the updated motion parameters.
Dependencies are inferred from the claim text.