Method and apparatus for generating large compound ultrasound im

Details Method and apparatus for generating large compound ultrasound im Method and apparatus for generating large compound ultrasound im

1995-03-31

1996-11-19

Jaworski, Francis

Surgery

Truss

Pad

12866008, A61B 800

Patent

active

055752861

ABSTRACT:
An image registration method and apparatus is provided in which consecutive ultrasonic image frames are correlated in order to derive transducer motion information. Since ultrasonic images from real-time scanning operations are highly correlated from one frame to another, the individual images can be divided into several smaller sub-image regions and a very fast and robust image motion detection algorithm utilized to measure the sub-image motion. This algorithm uses a fast adaptive coarse/fine minimum-sum-absolute-difference (MSAD) search strategy to compute an initial estimation of the local motion vectors. The initial estimation is combined with two measurement parameters by use of a fuzzy logic technique to derive a final estimation of the local motion vectors. The final local motion vectors are applied to a least-squares (L-S) process in order to estimate global image motion. Finally, a fast display technique generates compound images based on the derived global image motion.

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