RAD3021

Sonographic imaging and digital image processing 2

Objectives On completion of this subject students will be able to demonstrate understanding of the physical principles of ultrasonography, sonographic instrumentation and the biological effects of ultrasound. Students will have an understanding of core aspects of digital image processing. Learning emphasis will be placed on image modification in the frequency domain and the design of current image processing hardware in Medical Imaging. The student will be expected to demonstrate understanding of contemporary implementations of image processing in all Medical Imaging modalities.

Synopsis Acoustics theory, transducer design, beam focusing, sound-tissue interaction, image acquisition, A mode, B mode, image formation, image artifacts. Doppler ultrasound: continuous and pulsed Doppler. Quality assurance in ultrasound. Power levels and biological effects. Extensions to the theory of the scan converter and image formatter in ultrasound to more advanced techniques in image processing: Spatial frequencies and the Fourier transform. Image modification in the frequency domain, filters/masks their form and functionality, sampling criteria, noise in sampling ADCs, computer interface design, graphics adaptors in RISC-based workstations, device drivers, image compression, and image analysis.

Assessment To be advised

Texts

To be advised