Patent ID: 9330461
Filing Date: 2016-05-03
CPC Classification: A61B,G01N,G01S,G06T,G16H

Claim Text:
1. An image-based method for measuring elasticity of biological tissues, comprising the following steps: step A, obtaining a cineloop consisting of N grayscale images of a testing biological tissue, where N is a positive integer; wherein step A further includes step B, obtaining regions of interest (ROI) of the grayscale images; step C, dividing the regions of interest into a grid of small sections known as interrogation windows; step D, calculating a relative displacement vector of each interrogation window using texture matching method; wherein step D further includes step E, calculating elastic modulus of each interrogation window according to the relative displacement vectors said displacement vectors including lateral and axial components stored in three-dimensional (3-D) arrays, where the three dimensions are lateral and axial positions within an image and frame number.