Performing adaptive frame average process in ultrasound system

摘要

There are provided embodiments for performing a frame average process based on a change of a frame rate are disclosed. In one embodiment, an ultrasound system comprises: an ultrasound data acquisition unit configured to sequentially acquire ultrasound data corresponding to a living body; and a processing unit configured to sequentially form a plurality of ultrasound images based on the ultrasound data, estimate a frame average coefficient corresponding to a change of a frame rate based on an ith (i is a positive integer) ultrasound image and an ith frame average image, and perform a frame average process between the ith frame average image and an (i+1)th ultrasound image based on the frame average coefficient to form an (i+1)th frame average image.

主权项

1. An ultrasound system, comprising:
an ultrasound data acquisition unit configured to sequentially acquire ultrasound data corresponding to a living body; and a processing unit, comprising:
an ultrasound image forming section configured to form a plurality ultrasound image based on the ultrasound data;a determining section configured to compare a reference frame rate and a current frame rate to output a determining result;a coefficient estimating section including a resampling section and an estimating section and configured to output a frame average coefficient for image data in a frame average process based on the determining result, the resampling section being configured to resample an ith ultrasound image (i is a positive integer) and an ith frame average image at a sampling rate equal to the current frame rate based on the determining result to form first resampling data from the ith ultrasound image and to form second resampling data from the ith frame average image, the estimating section being configured to estimate the frame average coefficient based on the first resampling data and the second resampling data; and a frame average processing section configured to form an (i+1)th frame average image by performing the frame average process between the ith frame average image and an (i+1)th ultrasound image based on the frame average coefficient outputted from the coefficient estimating section, wherein the frame average processing section comprises: a first multiplying section configured to multiply the frame average coefficient with the first resampling data to output first multiplication data; a delaying section configured to apply a delay to the (i)th frame average image to output a delayed ith frame average image; a second multiplying section configured to multiply the frame average coefficient with the the delayed ith frame average image to output second multiplication data; and an adding section configured to add the first multiplication data and the second multiplication data to output the (i+1)th frame average image.