Talk:Harris affine region detector

Robotics attention needed
Chaosdruid (talk) 10:27, 24 March 2012 (UTC)
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Is this formula wrong?
I think I found a mistake in a formula. I am writing on my diploma thesis for which I have studied the use of an extended Harris-filter for a certain application.

Shouldn't this


 * $$A(\mathbf{x}) = \sum_{p,q} w(p,q)

\begin{bmatrix} I_{x}^2(\mathbf{x}) & I_{x}I_{y}(\mathbf{x}) \\ I_{x}I_{y}(\mathbf{x}) & I_{y}^2(\mathbf{x})\\ \end{bmatrix} $$

be this?


 * $$A(\mathbf{x}) = \sum_{p,q} w(p,q)

\begin{bmatrix} I_{x}^2(\mathbf{p,q}) & I_{x}I_{y}(\mathbf{p,q}) \\ I_{x}I_{y}(\mathbf{p,q}) & I_{y}^2(\mathbf{p,q})\\ \end{bmatrix} $$

or alternatively something like this?


 * $$A(\mathbf{x}) = \sum_{p,q} w(p,q)

\begin{bmatrix} I_{x}^2(\mathbf{x+p,q}) & I_{x}I_{y}(\mathbf{x+p,q}) \\ I_{x}I_{y}(\mathbf{x+p,q}) & I_{y}^2(\mathbf{x+p,q})\\ \end{bmatrix} $$

Otherwise you would integrate over only one position. My Prof agreed, so there should be something on it. — Preceding unsigned comment added by 134.2.100.132 (talk) 13:56, 16 December 2013 (UTC)

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