Motion artifact reduction in coherent image formation
First Claim
Patent Images
1. A method for correcting phase errors in coherent image formation, the method comprising:
- (a) applying at least two different relative phases between first and second analytic data received in response to temporally different transmissions; and
(b) selecting associated with one of the at least two different relative phases.
1 Assignment
0 Petitions
Accused Products
Abstract
The same analytic data is combined in response to different relative phases. The resulting combinations are detected. The combination associated with the maximum magnitude is then selected for further processing. As a result, the complex data is processed across a variety of possible temporal discontinuities using candidate or possible phase shifts. The phase shift with the least cancellation and the associated combination is selected to minimize motion artifact cancellation.
-
Citations
28 Claims
-
1. A method for correcting phase errors in coherent image formation, the method comprising:
-
(a) applying at least two different relative phases between first and second analytic data received in response to temporally different transmissions; and
(b) selecting associated with one of the at least two different relative phases. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for correcting phase errors in coherent image formation, the method comprising:
-
(a) analytically processing ultrasound data along scan lines spaced in both the azimuth and elevation dimension; and
(b) compensating for motion between at least first and second analytic data for first and second scan lines, respectively, as a function of a relative phase angle, the first and second scan lines spaced along one of;
the elevation dimension and the azimuth dimension. - View Dependent Claims (16, 17, 28)
-
-
18. A method for correcting phase errors in coherent image formation, the method comprising:
-
(a) filtering without interpolation complex data from at least two acquisitions;
(b) determining a relative phase angle between the complex data of the at least two acquisitions as a function of motion between acquisition of the complex data; and
(c) adjusting (a) as a function of the relative phase angle. - View Dependent Claims (19, 20)
-
-
21. A system for correcting phase errors in coherent image formation, the system comprising:
-
a complex filter operable to receive first and second data and operable output third data responsive to a combination of the first and second data with a first relative phase angle and fourth data responsive to a combination of the first and second data with a second relative phase angle, the first relative phase angle different than the second relative phase angle;
a detector operable to detect the third and fourth data; and
a switch operable to select one of the third and fourth data in response to the detector. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
Specification