Quote - ...Here are some small examples of cylindrical panoramic projections:

If you look closely at the pictures above, you will notice that they are circular, meaning that the very left part of the picture is the sequel to the very right part of the picture.

The example image given is most certainly not a cylindrical projection of the environment. A cylindrical projection would leave the heights of objects consistent. Moreover you cannot see a flat surface with a normal that is aligned to the projection cylinder (luckily, there is a water surface in the image, so you can tell).

What they probably mean is: They take a panoramic image (one where the left side matches the right) and project it onto a cylinder surrounding the viewer. I have seen the term "cyclorama" sometimes refer to that technique in poser-speech. Perhaps there are some online resources on how you can create them, but i did not look (yet).