The cylindrical projection is commonly known as panoramic image and it is one of the most used representations in mobile robotics works, to solve some problems such as map creation and localization [61-63], SLAM [64], and visual servoing and navigation [65, 66].
[67] propose a navigation system that combines the information contained in the omnidirectional image, cylindrical projection, and orthographic projection.
To conclude this section, Figure 7 shows (a) an omnidirectional image captured by the catadioptric system presented in Figure 2(a) and the visual appearance of the projections calculated from this image: (b) unit sphere projection, (c) cylindrical projection, (d) perspective projection onto a vertical plane, and (e) orthographic projection.
Caption: FIGURE 4: Projection model of the cylindrical projection.
Gahrken demonstrated that these features recorded by himself and others do sometimes but not always correspond to surface features, by comparison of
cylindrical projections of these images with both Magellan radar mapping and images from Venus Express.