Patent ID: 8647275
Filing Date: 2014-02-11
Classification: A61B,G01S,G06T

Abstract:
1. An ultrasound diagnosis apparatus for performing an ultrasound scan multiple times such that the same region of a subject overlaps in at least a portion and for generating images of a plurality of frames based on a received echo, the ultrasound diagnosis apparatus comprising: an analyzing unit configured to perform a multiple resolution analysis for the generated images by wavelet transform; a filter operation processing unit configured to perform a filter operation processing for each of wavelet coefficients corresponding among the images of a plurality of frames, in each wavelet coefficient of each resolution obtained by the multiple resolution analysis by the analyzing unit; and an image generating unit configured to perform wavelet inverse transform of the predetermined transform processing for a result of the filter operation processing by the filter operation processing unit, to generate an image of one frame, wherein the filter operation processing performed for each of the wavelet coefficients uses, for each pixel among the images of a plurality of frame, a wavelet coefficient for said each pixel and a wavelet coefficient for at least one adjacent pixel within a predetermined distance, and the filter operation processing unit is configured to take a mean value for wavelet coefficients at a relatively low frequency side and to output a larger absolute value for wavelet coefficients at a relatively high frequency side, of the wavelet coefficients obtained by the multiple resolution analysis.