System and method for 3-D ultrasound imaging and motion estimati

Details System and method for 3-D ultrasound imaging and motion estimati System and method for 3-D ultrasound imaging and motion estimati

1997-06-30

1999-03-02

Manuel, George

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

128916, A61B 800

Patent

active

058763422

ABSTRACT:
A system and method for 3-D ultrasound image registration and 3-D motion estimation. A calibrated 3-D speckle function is first pre-determined for the transducer and the tissue to be scanned. A series of image frames are identified and grouped into 3-D big and small blocks. Blocks representing speckle are identified and then, a full width half maximum value sum-absolute-difference technique is used to obtain an out-of-plane motion estimation based on decorrelation characteristics throughout the volume. For in-plane motion estimation, cross-correlation characteristics between pairs of frames are compared and, using a minimum sum absolute value technique, an estimate of in-plane motion is obtained. Fuzzy logic techniques are then used to obtain more accurate estimates. Finally, the out-of-plane motion estimate is updated based on decorrelation characteristics of the speckle frames used for the in-plane determination using a full width half maximum value technique.

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B.K.P. Horn, Hugh M. Hilden & Shahriar Negahdaripour, "Closed-form solution of absolute orientation using orthonormal matrices," 1988 Journal of the Optical Society of America.

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