Vector interpolation device and method for an ultrasonic wave image

An apparatus for a vector interpolation of an ultrasound image, the apparatus comprising:

• an autocorrelator configured to estimate an average velocity and a signal magnitude associated with blood flow based on an autocorrelation method;
• an interpolation processor configured to perform a vector interpolation with 1:M weighting (M is a natural number) between different complex-valued signals, based on a phase of a vector according to the average velocity and the signal magnitude of the blood flow;
• and
• a velocity/variance calculator configured to calculate a velocity and a variance of the blood flow by using the average velocity and the signal magnitude which are vector-interpolated by the interpolation processor.

A method for a vector interpolation of an ultrasound image, the method comprising:

• converting an electric signal into an ultrasound signal, transmitting the ultrasound signal to an object, and converting a reflected ultrasound signal received from the object into an electric signal;
• forming a receive-focused signal based on the electric signal converted from the reflected ultrasound signal;
• demodulating the receive-focused signal to form an I data corresponding to in-phase components and a Q data corresponding to quadrature-phase components;
• and
• performing a vector interpolation with 1:M weighting (M is a natural number) between different complex-valued signals, based on the I data and the Q data.

A method for a vector interpolation of an ultrasound image, the method comprising:

• estimating an average velocity and a signal magnitude of a blood flow based on an autocorrelation method;
• performing a vector interpolation with 1:M weighting (M is a natural number) between different complex-valued signals, based on a phase of a vector according to a velocity and a change in the signal magnitude of the blood flow;
• and
• calculating velocities and a variance of the complex-valued signals which are vector-interpolated.