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> rotating an image a little, lets say tilt, can vastly increase or decrease your algorithm's performance

Wouldn't be the first time evolution used the trick. The eyes, in mammals at least, constantly wiggle even when fixed on an object. If the eyes stop moving entirely your field of vision fades out after some seconds. https://en.wikipedia.org/wiki/Saccade

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> the eyes move around, locating interesting parts of the scene and building up a mental, three-dimensional 'map' corresponding to the scene

Your reference is very interesting for me because in computer vision we try to locate local features and try to match these local features, so that 3D correspondence can be extracted from multiple images which called structure from motion (SfM). Now I know, humans (and animals) also do the same thing!

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