Patent ID: 8187192

Claim:
A method for scan conversion and interpolation of ultrasonic linear array steering imaging, comprising: performing coordinate conversion via a processor on a coordinate point in a display coordinate system by converting the coordinate point in the display coordinate system into a coordinate point to be interpolated in an acquisition data coordinate system; computing coordinates via the processor of two intersection where a principal direction for a point spread function of the coordinate point to be interpolated along a perpendicular direction to an imaginary scan line passing through the point to be interpolated at the current steering angle of the linear array intersects two closest scan lines based on a steering angle of the scan lines; determining via the processor four interpolation points that are closest to the two intersections on the two closest scan lines based on the coordinates of the two intersections; obtaining via the processor values of the two intersections by means of interpolation in a direction of the scan lines using the four interpolation points; and obtaining via the processor a value of the coordinate point to be interpolated by means of interpolation in the principal direction of the point spread function of the coordinate point to be interpolated using the values of the two intersections.