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Lecture 4: Transforms (21)

Is the reason why we don’t have a constant “bias” term being added here since this is a linear transform and not an affine transform?


Bias is used for translation transform because it allows the matrix to move up/down and left/right. However, we do not need bias in linear transforms. Another way of thinking of this is that all linear transforms are affine, but not vice versa.

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