What is Image Registration

1.

A process of transforming a set of patient images acquired at different times and/or with different modality into the same coordinate system, mapping corresponding voxels of these images in 3D space, based on the underlying anatomy or fiducial markers. Learn more in: 3D and 4D Medical Image Registration Combined with Image Segmentation and Visualization

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The task of finding a correspondence function mapping coordinates from a reference image to coordinates of homologous points in a test image. Learn more in: Image Registration Algorithms for Applications in Oncology

3.

The process of matching a corresponding image to a reference image, using suitable transformations Learn more in: Automatic Correspondence Methods towards Point-Based Medical Image Registration: An Evaluation Study

4.

Evaluating the transformation compensating for the difference in location, pose (rigid registration) and possibly scale or shape (non-rigid registration) between the images. Different images can thus be spatially aligned in one common coordinate system before further analysis. For instance,. rigid registration of images of the head is used to correct for the different positioning of the subject in the image acquisition device at two distinct times points. Learn more in: Grid Analysis of Radiological Data

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Registration of images in a common known reference coordinate system. Learn more in: Combining Geometry and Image in Biomedical Systems: The RT TPS Case

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The process whereby two images, differing by a spatial transformation, are brought into geometric alignment. Learn more in: Distributed Medical Volume Registration

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The process whereby two images, differing by a spatial transformation, are brought into geometric alignment. Learn more in: Distributed Medical Image and Volume Registration

8.

The process whereby two images, differing by a spatial transformation, are brought into geometric alignment. Learn more in: Similarity Metrics for Medical Image Registration

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A procedure, involving a spatial transformation that brings homologous point in two images into correspondence. Learn more in: Isocenter Verification in Radiotherapy Clinical Practice Using Virtual Simulation: An Image Registration Approach