Kuvarekisteröinti

Kuvarekisteröinti, often translated as image registration or image alignment, is a process used in various fields to bring two or more images of the same scene into spatial coincidence. This alignment is crucial for tasks such as comparing images taken at different times, from different viewpoints, or with different sensors. The goal is to transform one image so that its features match those in another reference image.

The process typically involves identifying corresponding points or features in the images. These features can be distinct objects, edges, or corners. Once identified, a mathematical transformation is calculated to map the points in the moving image to their counterparts in the fixed image. Common transformations include translation, rotation, scaling, and more complex geometric distortions.

Image registration is widely applied in medical imaging for tracking changes in organs or tumors over time, or for fusing images from different modalities like MRI and CT scans. In remote sensing, it's used to combine satellite or aerial imagery to create detailed maps or monitor environmental changes. Computer vision and robotics also utilize kuvarekisteröinti for object recognition, scene understanding, and navigation. The accuracy and robustness of the registration process are vital for the reliability of subsequent analyses and applications.