MULTIRESOLUTION DYNAMIC IMAGE REPRESENTATION WITH UNIFORM AND FOVEAL SPIRAL SCAN DATA

This work addresses the problem of representing a dynamic image via it s temporal spiral scan data. Two types of spiral scan data are conside red: uniform density and foveal. Spatial sampling strategies for these two spiral scans are examined. A signal model is developed to interpr et the temporal readouts of repeated spiral scans via two separate tim e variables, the slow-time and fast-time. This mathematical model is u sed to construct a method for forming the time progression of the targ et image. A method for increasing the repetition rate of the spiral da ta collection via utilizing both forward and backward spiral scans is presented. Results are provided.