Hypertemporal-spatial resolution blood flow velocity field and pressure field analysis method and system

The invention discloses a hyper-temporal-spatial-resolution blood flow velocity field and pressure field analysis method and a hyper-temporal-spatial-resolution blood flow velocity field and pressure field analysis system, and belongs to the technical field of ultrasonic medical image processing. Extracting geometric features of a blood vessel boundary and a spatial coordinate point set under a time sequence in a blood vessel to form a coordinate data set, performing data assimilation on a high-resolution instantaneous velocity vector and a hemodynamic simulation value, and constructing an auxiliary data set; constructing a physical information neural network, taking the coordinate data set and the auxiliary data set as training data sets, carrying out iterative training on the physical information neural network, and obtaining an optimal model of the physical information neural network for estimating the super-resolution blood flow velocity field and the pressure field after iterative optimization; predictin