title: A multirate scan conversion method
abstract: B-mode ultrasonic imaging requires that the acquired polar coordinate ultrasound data be converted to the Cartesian format used by digital monitors. Image quality depends on the interpolation algorithm used to this purpose. In this work a selective sampling technique, based on acquiring data at specific points of the scanned area together with a straightforward linear interpolation step, is proposed. Hardware complexity is avoided, because the interpolation task can be carried out by software in real time, concurrently with data acquisition. The performances of the proposed approach are analysed with regard to those provided by other algorithms and some implementation issues are addressed.
authors.affiliation: Instituto de Automatica Industrial, Madrid, Spain. carlos@iai.csic.es
authors.initials: C
authors.lastname: Fritsch
authors.initials: M
authors.lastname: Parrilla
authors.initials: O
authors.lastname: Martinez
authors.initials: D
authors.lastname: Jimenez