Visualisation of structures located in such a depth that would otherwise not be visualized, or structures whose properties otherwise would not appear like cropmarks at all or almost not at all.
Visualisation wa miundo iko katika kina kavu na Hiyo Vinginevyo Je, si kuwa visualized, miundo au mali ya nani Vinginevyo Je, si kuonekana kama cropmarks wakati wote au karibu si wakati wote.