A ray-tracing algorithm based on a double-tree image theory

A novel ray-tracing algorithm based on the image theory is presented. The main idea is the use of the images of both transmitter and receiver to establish the corresponding images´ trees and the pertinent ray paths. Although it may seem a paradox, the implementation of both trees, in some cases, actually reduces the total amount of stored data, as the last level of the transmitter´s tree adopted in conventional algorithms is not necessary. Some case studies are present to demonstrate this feature.