We address the problem of improving the spatial resolution of ultrasound images through blind deconvolution. The ultrasound image formation process in the RF domaim can be expressed as a spatio-temporal convolution between the tissue response and the ultrasonic system response, plus additive noise. Convolutional components of the dispersive attenuation and aberrations introduced by propagating ...

In this paper we extend our clausal resolution method for linear temporal logics to a branching-time framework. The branching-time temporal logics considered are Computation Tree Logic (CTL), often regarded as the simplest useful logic of this class, and Extended CTL (ECTL), which is CTL extended with fairness operators. The key elements of the resolution method, namely the normal form, the con...

An approach to applying clausal resolution, a proof method for classical logics suited to mechanisation, to temporal logics has been developed by Fisher. The method involves translation to a normal form, classical style resolution within states and temporal resolution between states. The method consists of only one temporal resolution rule and is therefore particularly suitable as the basis of ...