In recent years, Full Waveform Inversion (FWI) technology, as a high-resolution seismic imaging method constrained by wave equations ... applied in the Valhall oil field in the North Sea, Norway ...

An ultrasonic scanner produces a sound wave by using a transducer, the wave propagates in the body and echoes back to the transducer that records the echo. The propagation ... the wave equation can be ...