Patent ID: 8503714

Claim:
An ultrasound system, comprising: an ultrasound data acquisition unit configured to acquire first ultrasound frame data where compression is not applied to a target object and second ultrasound frame data where compression is applied to the target object; and a processing unit configured to set a first window on each of the first ultrasound frame data and the second ultrasound frame data, move the first window in a predetermined direction and compute a correlation between the first ultrasound frame data and the second ultrasound frame data within the first window to obtain a displacement corresponding to a value of each pixel of third ultrasound frame data, the processing unit being further configured to set one of pixels of the third ultrasound frame data as a reference pixel, set a second window to encompass predetermined numbers of pixels positioned around the reference pixel in the third ultrasound frame data, check whether a displacement computation error corresponding to a dropout occur based on the pixel values within the second window and reset, when the dropout occurs, the value of the reference pixel.