An apparatus and method for generating and displaying an image of an object is described and includes a radiation source and a series of at least two linear detectors capable of detecting incident radiation after transmission through an object to define a scanning zone there between. The object is moved relative to and through the scanning zone in successive passes along at least two linear directions at an angle to each other. An image generation apparatus generates for each successive pass at least a first image from the first linear detector, a second image from the second linear detector, and a third image. An image display is adapted successively to display at least the first, second and third images and display the monocular movement parallax between the images. Each image is processed before display to reduce distortion attributable to beam spreading in a direction perpendicular to a scan direction.
