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Geometric Computer Vision: Difference between revisions
→Optical Flow
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<math>u = \frac{-V + xW}{Z} = \frac{W}{Z}(-\frac{U}{W} + x) = \frac{W}{Z}(x - x_0)</math> | <math>u = \frac{-V + xW}{Z} = \frac{W}{Z}(-\frac{U}{W} + x) = \frac{W}{Z}(x - x_0)</math> | ||
<math>v = \frac{-V + \gamma W}{Z} = \frac{W}{Z}(-\frac{V}{W} + \gamma) = \frac{W}{Z}(y - y_0)</math> | <math>v = \frac{-V + \gamma W}{Z} = \frac{W}{Z}(-\frac{V}{W} + \gamma) = \frac{W}{Z}(y - y_0)</math> | ||
The direction of the translation is: | |||
<math>\frac{v}{u} = \frac{y-y_0}{x-x_0}</math> | |||
The all eminate from the focus of expansion. | |||
If you walk towards a point in the image, then all pixels will flow away from that point. | |||
==Projects== | ==Projects== | ||