A kind of real-time ultrasonic image analogy method based on CT volume data

The Discern and judge that ultrasonoscopy carries out human tissue organ's pathology needs doctor to have abundant ultrasound image recognition experience, and real-time ultrasonic image is modeled as ultrasonic training provides one instrument easily.This ultrasonoscopy analogy method carries out the real time modelling of ultrasonoscopy based on CT volume data, thin-plate spline interpolation function is adopted to carry out the mutual conversion of the pixel coordinate position of ultrasonic sector image and CT rectangular image, the feature of integrative organization's organ edge detection operator and the feature of CT image and ultrasonic image noise, by calculating the difference proportion of CT value between wall scroll Ray two pixel, use non-linear compressed transform, according to Lambertian reflection model, obtain the reflectivity of histoorgan interface, the simulation of ultrasonic probe multiple-unit transducer is realized by Hanning Window function.Ultrasonoscopy simulates real solidity is herein high, real-time.