Parallel lines are straight lines which have the same direction and so never meet. Arrowheads show lines are parallel. A straight line that cuts a pair of parallel lines is called an intersecting ...

In this case the 2D Radon transform is sampled for , , and , . Here is the radius of the reconstruction region, i.e. we assume f(x) = 0 for , . This means that the measured rays come in p parallel ...

Parallel lines close parallel lines Lines which never meet and stay the same distance apart. Parallel lines are indicated by a pair of arrows. are two or more straight lines that remain the same ...