Typically, on a MacBook (grey model, 2009), for an 8-bit stack with a window Left), but the whole correlation matrix is recalculated from scratch (a lot Only a little (only one column is replaced actually, and the rest is shifted This is a highly redundant process, for when theĪlgorithm moves to the next pixel to the right, the blocks content change Is then calculated from these two blocks, and the result is analyzed to Is extracted for the front image and the back image. For each pixel away from the border of the image, a block The trade off is loss of precision, but also theįact that you might get completely irrelevant vectors.Īs stated before, this plugin implements a very naive and primitiveĪlgorithm, without a sense of subtlety, and exists mainly forĮducational purpose. Track them, which makes it particularly interesting when dealing withīrightfield or DIC images. Of a velocity field without having to segment objects out of an image and įor us, the main interest of this technique is that it allows the computation
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