From wiki: ‘Image rectification is a transform process used to project images onto a common plane.’
Can anyone explain it in simple terms as I fail to actually understand what they mean
In: Technology
There are a few types. To put it simply, if you take a picture of an object, then take another having rotated the camera slightly, then you can rectify the two images using image rectification processes. The basic process is finding groups of pixels that look similar in each image. When you find several groups that you feel confident are matches in each image, you can calculate how much each of are offset from one image to the other. Then you can take all of those offsets to calculate how much you rotated the camera from picture 1 to picture 2. Once you know the rotation you can unrotate the second image to match the first. This can be done with rotation, zoom, scale, and translation. Usually you just create a matrix to represent all of the transforms, then warp one image to the other using that transform matrix.
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