#### Skew Symmetric Matrices

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We have a quick revision of the skew-symmetric matrix. If you’re comfortable with this topic then go straight on to the next section.

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We have a quick revision of the skew-symmetric matrix. If you’re comfortable with this topic then go straight on to the next section.

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Imagine trying to find a face in a crowd. If we know what the face looks like we could search for it at every possible location — this is the essence of template matching. To make it work we need to describe how similar each area we are checking is to the reference face image […]

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We consider multiple objects each with its own coordinate frame. Now we can describe the relationships between the frames and find a vector describing a point with respect to any of these frames. We extend our algebraic notation to ease the manipulation of relative poses. Try your hand at some online MATLAB problems. You’ll need […]

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We consider multiple objects each with their own 3D coordinate frame. Now we can describe the relationships between the frames and find a vector describing a point with respect to any of these frames. We extend our previous 2D algebraic notation to 3D and look again at pose graphs.

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For a simple 2-link planar robot we introduce and derive its Jacobian matrix, and also introduce the concept of spatial velocity.

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Food. With more people we need to have more of it, but there are real challenges with producing what we will need. Can robots help?

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As the illumination level changes so do the red, green and blue tristimulus values, but they are linearly related. We can separate brightness from chromaticity which is a two dimensional representation of color. We discuss briefly the effect of gamma encoding on the color reproduction process.

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In this mini-documentary we look at a diverse range of real-world robots, discuss what they do and how they do it.

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Most computers today have a built-in camera. Let’s look at how we can grab images directly from such a camera and put them in the MATLAB workspace.

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The orientation of a body in 3D can also be described by two vectors, often called the approach and orientation vectors.