METHOD AND APPARATUS FOR GENERATING BEARING INDICATOR DIAGRAM, AND ULTRASONIC THREE-DIMENSIONAL IMAGING METHOD AND SYSTEM

摘要

Disclosed are a method and apparatus for generating a bearing indicator diagram in ultrasonic three-dimensional imaging. The method comprises the steps of: acquiring the acquisition and positioning parameters for three-dimensional imaging and the section parameters for a section window; establishing a geometric model for hexahedron reconstruction according to the acquisition and positioning parameters; determining a three-dimensional observation direction and a section observation direction; establishing a section geometric model according to the section parameters; drawing a geometric model for hexahedron reconstruction based on the three-dimensional observation direction, and the positional relation between the section image and an ultrasonic scanning space; drawing the section geometric model based on the section observation direction; and obtaining a bearing indicator diagram. The positional relation between the section image and the ultrasonic scanning space in three-dimensional imaging can be accurately, visually, and vividly displayed by establishing the geometric model for hexahedron reconstruction reflecting the real ultrasonic scanning space and the section geometric model reflecting the section window, and by generating the bearing indicator diagram according to the positional relation between the section and the ultrasonic scanning space.